}
EXPORT_SYMBOL(bh_submit_read);
+/*
+ * Seek for SEEK_DATA / SEEK_HOLE within @page, starting at @lastoff.
+ *
+ * Returns the offset within the file on success, and -ENOENT otherwise.
+ */
+static loff_t
+page_seek_hole_data(struct page *page, loff_t lastoff, int whence)
+{
+ loff_t offset = page_offset(page);
+ struct buffer_head *bh, *head;
+ bool seek_data = whence == SEEK_DATA;
+
+ if (lastoff < offset)
+ lastoff = offset;
+
+ bh = head = page_buffers(page);
+ do {
+ offset += bh->b_size;
+ if (lastoff >= offset)
+ continue;
+
+ /*
+ * Unwritten extents that have data in the page cache covering
+ * them can be identified by the BH_Unwritten state flag.
+ * Pages with multiple buffers might have a mix of holes, data
+ * and unwritten extents - any buffer with valid data in it
+ * should have BH_Uptodate flag set on it.
+ */
+
+ if ((buffer_unwritten(bh) || buffer_uptodate(bh)) == seek_data)
+ return lastoff;
+
+ lastoff = offset;
+ } while ((bh = bh->b_this_page) != head);
+ return -ENOENT;
+}
+
+/*
+ * Seek for SEEK_DATA / SEEK_HOLE in the page cache.
+ *
+ * Within unwritten extents, the page cache determines which parts are holes
+ * and which are data: unwritten and uptodate buffer heads count as data;
+ * everything else counts as a hole.
+ *
+ * Returns the resulting offset on successs, and -ENOENT otherwise.
+ */
+loff_t
+page_cache_seek_hole_data(struct inode *inode, loff_t offset, loff_t length,
+ int whence)
+{
+ pgoff_t index = offset >> PAGE_SHIFT;
+ pgoff_t end = DIV_ROUND_UP(offset + length, PAGE_SIZE);
+ loff_t lastoff = offset;
+ struct pagevec pvec;
+
+ if (length <= 0)
+ return -ENOENT;
+
+ pagevec_init(&pvec, 0);
+
+ do {
+ unsigned want, nr_pages, i;
+
+ want = min_t(unsigned, end - index, PAGEVEC_SIZE);
+ nr_pages = pagevec_lookup(&pvec, inode->i_mapping, index, want);
+ if (nr_pages == 0)
+ break;
+
+ for (i = 0; i < nr_pages; i++) {
+ struct page *page = pvec.pages[i];
+
+ /*
+ * At this point, the page may be truncated or
+ * invalidated (changing page->mapping to NULL), or
+ * even swizzled back from swapper_space to tmpfs file
+ * mapping. However, page->index will not change
+ * because we have a reference on the page.
+ *
+ * If current page offset is beyond where we've ended,
+ * we've found a hole.
+ */
+ if (whence == SEEK_HOLE &&
+ lastoff < page_offset(page))
+ goto check_range;
+
+ /* Searching done if the page index is out of range. */
+ if (page->index >= end)
+ goto not_found;
+
+ lock_page(page);
+ if (likely(page->mapping == inode->i_mapping) &&
+ page_has_buffers(page)) {
+ lastoff = page_seek_hole_data(page, lastoff, whence);
+ if (lastoff >= 0) {
+ unlock_page(page);
+ goto check_range;
+ }
+ }
+ unlock_page(page);
+ lastoff = page_offset(page) + PAGE_SIZE;
+ }
+
+ /* Searching done if fewer pages returned than wanted. */
+ if (nr_pages < want)
+ break;
+
+ index = pvec.pages[i - 1]->index + 1;
+ pagevec_release(&pvec);
+ } while (index < end);
+
+ /* When no page at lastoff and we are not done, we found a hole. */
+ if (whence != SEEK_HOLE)
+ goto not_found;
+
+check_range:
+ if (lastoff < offset + length)
+ goto out;
+not_found:
+ lastoff = -ENOENT;
+out:
+ pagevec_release(&pvec);
+ return lastoff;
+}
+
void __init buffer_init(void)
{
unsigned long nrpages;
}
EXPORT_SYMBOL_GPL(iomap_fiemap);
+static loff_t
+iomap_seek_hole_actor(struct inode *inode, loff_t offset, loff_t length,
+ void *data, struct iomap *iomap)
+{
+ switch (iomap->type) {
+ case IOMAP_UNWRITTEN:
+ offset = page_cache_seek_hole_data(inode, offset, length,
+ SEEK_HOLE);
+ if (offset < 0)
+ return length;
+ /* fall through */
+ case IOMAP_HOLE:
+ *(loff_t *)data = offset;
+ return 0;
+ default:
+ return length;
+ }
+}
+
+loff_t
+iomap_seek_hole(struct inode *inode, loff_t offset, const struct iomap_ops *ops)
+{
+ loff_t size = i_size_read(inode);
+ loff_t length = size - offset;
+ loff_t ret;
+
+ /* Nothing to be found beyond the end of the file. */
+ if (offset >= size)
+ return -ENXIO;
+
+ while (length > 0) {
+ ret = iomap_apply(inode, offset, length, IOMAP_REPORT, ops,
+ &offset, iomap_seek_hole_actor);
+ if (ret < 0)
+ return ret;
+ if (ret == 0)
+ break;
+
+ offset += ret;
+ length -= ret;
+ }
+
+ return offset;
+}
+EXPORT_SYMBOL_GPL(iomap_seek_hole);
+
+static loff_t
+iomap_seek_data_actor(struct inode *inode, loff_t offset, loff_t length,
+ void *data, struct iomap *iomap)
+{
+ switch (iomap->type) {
+ case IOMAP_HOLE:
+ return length;
+ case IOMAP_UNWRITTEN:
+ offset = page_cache_seek_hole_data(inode, offset, length,
+ SEEK_DATA);
+ if (offset < 0)
+ return length;
+ /*FALLTHRU*/
+ default:
+ *(loff_t *)data = offset;
+ return 0;
+ }
+}
+
+loff_t
+iomap_seek_data(struct inode *inode, loff_t offset, const struct iomap_ops *ops)
+{
+ loff_t size = i_size_read(inode);
+ loff_t length = size - offset;
+ loff_t ret;
+
+ /* Nothing to be found beyond the end of the file. */
+ if (offset >= size)
+ return -ENXIO;
+
+ while (length > 0) {
+ ret = iomap_apply(inode, offset, length, IOMAP_REPORT, ops,
+ &offset, iomap_seek_data_actor);
+ if (ret < 0)
+ return ret;
+ if (ret == 0)
+ break;
+
+ offset += ret;
+ length -= ret;
+ }
+
+ if (length <= 0)
+ return -ENXIO;
+ return offset;
+}
+EXPORT_SYMBOL_GPL(iomap_seek_data);
+
/*
* Private flags for iomap_dio, must not overlap with the public ones in
* iomap.h:
not useful unless you are debugging a particular problem.
Say N unless you are an XFS developer, or you play one on TV.
+
+config XFS_ASSERT_FATAL
+ bool "XFS fatal asserts"
+ default y
+ depends on XFS_FS && XFS_DEBUG
+ help
+ Set the default DEBUG mode ASSERT failure behavior.
+
+ Say Y here to cause DEBUG mode ASSERT failures to result in fatal
+ errors that BUG() the kernel by default. If you say N, ASSERT failures
+ result in warnings.
+
+ This behavior can be modified at runtime via sysfs.
/* Critically low if less than 10% or max btree height remains. */
return XFS_TEST_ERROR(avail < orig / 10 || avail < XFS_BTREE_MAXLEVELS,
- pag->pag_mount, XFS_ERRTAG_AG_RESV_CRITICAL,
- XFS_RANDOM_AG_RESV_CRITICAL);
+ pag->pag_mount, XFS_ERRTAG_AG_RESV_CRITICAL);
}
/*
/*
* Read in the allocation group free block array.
*/
-STATIC int /* error */
+int /* error */
xfs_alloc_read_agfl(
xfs_mount_t *mp, /* mount point structure */
xfs_trans_t *tp, /* transaction pointer */
!xfs_buf_verify_cksum(bp, XFS_AGF_CRC_OFF))
xfs_buf_ioerror(bp, -EFSBADCRC);
else if (XFS_TEST_ERROR(!xfs_agf_verify(mp, bp), mp,
- XFS_ERRTAG_ALLOC_READ_AGF,
- XFS_RANDOM_ALLOC_READ_AGF))
+ XFS_ERRTAG_ALLOC_READ_AGF))
xfs_buf_ioerror(bp, -EFSCORRUPTED);
if (bp->b_error)
ASSERT(type != XFS_AG_RESV_AGFL);
if (XFS_TEST_ERROR(false, mp,
- XFS_ERRTAG_FREE_EXTENT,
- XFS_RANDOM_FREE_EXTENT))
+ XFS_ERRTAG_FREE_EXTENT))
return -EIO;
error = xfs_free_extent_fix_freelist(tp, agno, &agbp);
int xfs_read_agf(struct xfs_mount *mp, struct xfs_trans *tp,
xfs_agnumber_t agno, int flags, struct xfs_buf **bpp);
+int xfs_alloc_read_agfl(struct xfs_mount *mp, struct xfs_trans *tp,
+ xfs_agnumber_t agno, struct xfs_buf **bpp);
int xfs_alloc_fix_freelist(struct xfs_alloc_arg *args, int flags);
int xfs_free_extent_fix_freelist(struct xfs_trans *tp, xfs_agnumber_t agno,
struct xfs_buf **agbp);
ptr->s = agf->agf_roots[cur->bc_btnum];
}
-STATIC __int64_t
+STATIC int64_t
xfs_bnobt_key_diff(
struct xfs_btree_cur *cur,
union xfs_btree_key *key)
xfs_alloc_rec_incore_t *rec = &cur->bc_rec.a;
xfs_alloc_key_t *kp = &key->alloc;
- return (__int64_t)be32_to_cpu(kp->ar_startblock) - rec->ar_startblock;
+ return (int64_t)be32_to_cpu(kp->ar_startblock) - rec->ar_startblock;
}
-STATIC __int64_t
+STATIC int64_t
xfs_cntbt_key_diff(
struct xfs_btree_cur *cur,
union xfs_btree_key *key)
{
xfs_alloc_rec_incore_t *rec = &cur->bc_rec.a;
xfs_alloc_key_t *kp = &key->alloc;
- __int64_t diff;
+ int64_t diff;
- diff = (__int64_t)be32_to_cpu(kp->ar_blockcount) - rec->ar_blockcount;
+ diff = (int64_t)be32_to_cpu(kp->ar_blockcount) - rec->ar_blockcount;
if (diff)
return diff;
- return (__int64_t)be32_to_cpu(kp->ar_startblock) - rec->ar_startblock;
+ return (int64_t)be32_to_cpu(kp->ar_startblock) - rec->ar_startblock;
}
-STATIC __int64_t
+STATIC int64_t
xfs_bnobt_diff_two_keys(
struct xfs_btree_cur *cur,
union xfs_btree_key *k1,
union xfs_btree_key *k2)
{
- return (__int64_t)be32_to_cpu(k1->alloc.ar_startblock) -
+ return (int64_t)be32_to_cpu(k1->alloc.ar_startblock) -
be32_to_cpu(k2->alloc.ar_startblock);
}
-STATIC __int64_t
+STATIC int64_t
xfs_cntbt_diff_two_keys(
struct xfs_btree_cur *cur,
union xfs_btree_key *k1,
union xfs_btree_key *k2)
{
- __int64_t diff;
+ int64_t diff;
diff = be32_to_cpu(k1->alloc.ar_blockcount) -
be32_to_cpu(k2->alloc.ar_blockcount);
};
-#if defined(DEBUG) || defined(XFS_WARN)
STATIC int
xfs_bnobt_keys_inorder(
struct xfs_btree_cur *cur,
be32_to_cpu(r1->alloc.ar_startblock) <
be32_to_cpu(r2->alloc.ar_startblock));
}
-#endif /* DEBUG */
static const struct xfs_btree_ops xfs_bnobt_ops = {
.rec_len = sizeof(xfs_alloc_rec_t),
.key_diff = xfs_bnobt_key_diff,
.buf_ops = &xfs_allocbt_buf_ops,
.diff_two_keys = xfs_bnobt_diff_two_keys,
-#if defined(DEBUG) || defined(XFS_WARN)
.keys_inorder = xfs_bnobt_keys_inorder,
.recs_inorder = xfs_bnobt_recs_inorder,
-#endif
};
static const struct xfs_btree_ops xfs_cntbt_ops = {
.key_diff = xfs_cntbt_key_diff,
.buf_ops = &xfs_allocbt_buf_ops,
.diff_two_keys = xfs_cntbt_diff_two_keys,
-#if defined(DEBUG) || defined(XFS_WARN)
.keys_inorder = xfs_cntbt_keys_inorder,
.recs_inorder = xfs_cntbt_recs_inorder,
-#endif
};
/*
* Overall external interface routines.
*========================================================================*/
+/* Retrieve an extended attribute and its value. Must have iolock. */
+int
+xfs_attr_get_ilocked(
+ struct xfs_inode *ip,
+ struct xfs_da_args *args)
+{
+ if (!xfs_inode_hasattr(ip))
+ return -ENOATTR;
+ else if (ip->i_d.di_aformat == XFS_DINODE_FMT_LOCAL)
+ return xfs_attr_shortform_getvalue(args);
+ else if (xfs_bmap_one_block(ip, XFS_ATTR_FORK))
+ return xfs_attr_leaf_get(args);
+ else
+ return xfs_attr_node_get(args);
+}
+
+/* Retrieve an extended attribute by name, and its value. */
int
xfs_attr_get(
struct xfs_inode *ip,
args.op_flags = XFS_DA_OP_OKNOENT;
lock_mode = xfs_ilock_attr_map_shared(ip);
- if (!xfs_inode_hasattr(ip))
- error = -ENOATTR;
- else if (ip->i_d.di_aformat == XFS_DINODE_FMT_LOCAL)
- error = xfs_attr_shortform_getvalue(&args);
- else if (xfs_bmap_one_block(ip, XFS_ATTR_FORK))
- error = xfs_attr_leaf_get(&args);
- else
- error = xfs_attr_node_get(&args);
+ error = xfs_attr_get_ilocked(ip, &args);
xfs_iunlock(ip, lock_mode);
*valuelenp = args.valuelen;
err = xfs_da_read_buf(tp, dp, bno, mappedbno, bpp,
XFS_ATTR_FORK, &xfs_attr3_leaf_buf_ops);
- if (!err && tp)
+ if (!err && tp && *bpp)
xfs_trans_buf_set_type(tp, *bpp, XFS_BLFT_ATTR_LEAF_BUF);
return err;
}
xfs_ino_t ino,
int *offset,
int *valuelen,
- __uint8_t **dst)
+ uint8_t **dst)
{
char *src = bp->b_addr;
xfs_daddr_t bno = bp->b_bn;
xfs_ino_t ino,
int *offset,
int *valuelen,
- __uint8_t **src)
+ uint8_t **src)
{
char *dst = bp->b_addr;
xfs_daddr_t bno = bp->b_bn;
struct xfs_mount *mp = args->dp->i_mount;
struct xfs_buf *bp;
xfs_dablk_t lblkno = args->rmtblkno;
- __uint8_t *dst = args->value;
+ uint8_t *dst = args->value;
int valuelen;
int nmap;
int error;
(map[i].br_startblock != HOLESTARTBLOCK));
dblkno = XFS_FSB_TO_DADDR(mp, map[i].br_startblock);
dblkcnt = XFS_FSB_TO_BB(mp, map[i].br_blockcount);
- error = xfs_trans_read_buf(mp, NULL, mp->m_ddev_targp,
+ error = xfs_trans_read_buf(mp, args->trans,
+ mp->m_ddev_targp,
dblkno, dblkcnt, 0, &bp,
&xfs_attr3_rmt_buf_ops);
if (error)
error = xfs_attr_rmtval_copyout(mp, bp, args->dp->i_ino,
&offset, &valuelen,
&dst);
- xfs_buf_relse(bp);
+ xfs_trans_brelse(args->trans, bp);
if (error)
return error;
struct xfs_bmbt_irec map;
xfs_dablk_t lblkno;
xfs_fileoff_t lfileoff = 0;
- __uint8_t *src = args->value;
+ uint8_t *src = args->value;
int blkcnt;
int valuelen;
int nmap;
* We generate this then sort it, attr_list() must return things in hash-order.
*/
typedef struct xfs_attr_sf_sort {
- __uint8_t entno; /* entry number in original list */
- __uint8_t namelen; /* length of name value (no null) */
- __uint8_t valuelen; /* length of value */
- __uint8_t flags; /* flags bits (see xfs_attr_leaf.h) */
+ uint8_t entno; /* entry number in original list */
+ uint8_t namelen; /* length of name value (no null) */
+ uint8_t valuelen; /* length of value */
+ uint8_t flags; /* flags bits (see xfs_attr_leaf.h) */
xfs_dahash_t hash; /* this entry's hash value */
unsigned char *name; /* name value, pointer into buffer */
} xfs_attr_sf_sort_t;
#define XFS_ATTR_SF_ENTSIZE_BYNAME(nlen,vlen) /* space name/value uses */ \
(((int)sizeof(xfs_attr_sf_entry_t)-1 + (nlen)+(vlen)))
#define XFS_ATTR_SF_ENTSIZE_MAX /* max space for name&value */ \
- ((1 << (NBBY*(int)sizeof(__uint8_t))) - 1)
+ ((1 << (NBBY*(int)sizeof(uint8_t))) - 1)
#define XFS_ATTR_SF_ENTSIZE(sfep) /* space an entry uses */ \
((int)sizeof(xfs_attr_sf_entry_t)-1 + (sfep)->namelen+(sfep)->valuelen)
#define XFS_ATTR_SF_NEXTENTRY(sfep) /* next entry in struct */ \
/*
* masks with n high/low bits set, 64-bit values
*/
-static inline __uint64_t xfs_mask64hi(int n)
+static inline uint64_t xfs_mask64hi(int n)
{
- return (__uint64_t)-1 << (64 - (n));
+ return (uint64_t)-1 << (64 - (n));
}
-static inline __uint32_t xfs_mask32lo(int n)
+static inline uint32_t xfs_mask32lo(int n)
{
- return ((__uint32_t)1 << (n)) - 1;
+ return ((uint32_t)1 << (n)) - 1;
}
-static inline __uint64_t xfs_mask64lo(int n)
+static inline uint64_t xfs_mask64lo(int n)
{
- return ((__uint64_t)1 << (n)) - 1;
+ return ((uint64_t)1 << (n)) - 1;
}
/* Get high bit set out of 32-bit argument, -1 if none set */
-static inline int xfs_highbit32(__uint32_t v)
+static inline int xfs_highbit32(uint32_t v)
{
return fls(v) - 1;
}
/* Get high bit set out of 64-bit argument, -1 if none set */
-static inline int xfs_highbit64(__uint64_t v)
+static inline int xfs_highbit64(uint64_t v)
{
return fls64(v) - 1;
}
/* Get low bit set out of 32-bit argument, -1 if none set */
-static inline int xfs_lowbit32(__uint32_t v)
+static inline int xfs_lowbit32(uint32_t v)
{
return ffs(v) - 1;
}
/* Get low bit set out of 64-bit argument, -1 if none set */
-static inline int xfs_lowbit64(__uint64_t v)
+static inline int xfs_lowbit64(uint64_t v)
{
- __uint32_t w = (__uint32_t)v;
+ uint32_t w = (uint32_t)v;
int n = 0;
if (w) { /* lower bits */
n = ffs(w);
} else { /* upper bits */
- w = (__uint32_t)(v >> 32);
+ w = (uint32_t)(v >> 32);
if (w) {
n = ffs(w);
if (n)
if (unlikely(XFS_TEST_ERROR(
(XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_EXTENTS &&
XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_BTREE),
- mp, XFS_ERRTAG_BMAPIFORMAT, XFS_RANDOM_BMAPIFORMAT))) {
+ mp, XFS_ERRTAG_BMAPIFORMAT))) {
XFS_ERROR_REPORT("xfs_bmapi_read", XFS_ERRLEVEL_LOW, mp);
return -EFSCORRUPTED;
}
if (unlikely(XFS_TEST_ERROR(
(XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_EXTENTS &&
XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_BTREE),
- mp, XFS_ERRTAG_BMAPIFORMAT, XFS_RANDOM_BMAPIFORMAT))) {
+ mp, XFS_ERRTAG_BMAPIFORMAT))) {
XFS_ERROR_REPORT("xfs_bmapi_write", XFS_ERRLEVEL_LOW, mp);
return -EFSCORRUPTED;
}
if (unlikely(XFS_TEST_ERROR(
(XFS_IFORK_FORMAT(ip, XFS_DATA_FORK) != XFS_DINODE_FMT_EXTENTS &&
XFS_IFORK_FORMAT(ip, XFS_DATA_FORK) != XFS_DINODE_FMT_BTREE),
- mp, XFS_ERRTAG_BMAPIFORMAT, XFS_RANDOM_BMAPIFORMAT))) {
+ mp, XFS_ERRTAG_BMAPIFORMAT))) {
XFS_ERROR_REPORT("xfs_bmapi_remap", XFS_ERRLEVEL_LOW, mp);
return -EFSCORRUPTED;
}
int whichfork; /* data or attribute fork */
xfs_fsblock_t sum;
xfs_filblks_t len = *rlen; /* length to unmap in file */
+ xfs_fileoff_t max_len;
trace_xfs_bunmap(ip, bno, len, flags, _RET_IP_);
ASSERT(len > 0);
ASSERT(nexts >= 0);
+ /*
+ * Guesstimate how many blocks we can unmap without running the risk of
+ * blowing out the transaction with a mix of EFIs and reflink
+ * adjustments.
+ */
+ if (xfs_is_reflink_inode(ip) && whichfork == XFS_DATA_FORK)
+ max_len = min(len, xfs_refcount_max_unmap(tp->t_log_res));
+ else
+ max_len = len;
+
if (!(ifp->if_flags & XFS_IFEXTENTS) &&
(error = xfs_iread_extents(tp, ip, whichfork)))
return error;
extno = 0;
while (bno != (xfs_fileoff_t)-1 && bno >= start && lastx >= 0 &&
- (nexts == 0 || extno < nexts)) {
+ (nexts == 0 || extno < nexts) && max_len > 0) {
/*
* Is the found extent after a hole in which bno lives?
* Just back up to the previous extent, if so.
}
if (del.br_startoff + del.br_blockcount > bno + 1)
del.br_blockcount = bno + 1 - del.br_startoff;
+
+ /* How much can we safely unmap? */
+ if (max_len < del.br_blockcount) {
+ del.br_startoff += del.br_blockcount - max_len;
+ if (!wasdel)
+ del.br_startblock += del.br_blockcount - max_len;
+ del.br_blockcount = max_len;
+ }
+
sum = del.br_startblock + del.br_blockcount;
if (isrt &&
(mod = do_mod(sum, mp->m_sb.sb_rextsize))) {
if (!isrt && wasdel)
xfs_mod_fdblocks(mp, (int64_t)del.br_blockcount, false);
+ max_len -= del.br_blockcount;
bno = del.br_startoff - 1;
nodelete:
/*
if (unlikely(XFS_TEST_ERROR(
(XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_EXTENTS &&
XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_BTREE),
- mp, XFS_ERRTAG_BMAPIFORMAT, XFS_RANDOM_BMAPIFORMAT))) {
+ mp, XFS_ERRTAG_BMAPIFORMAT))) {
XFS_ERROR_REPORT("xfs_bmap_shift_extents",
XFS_ERRLEVEL_LOW, mp);
return -EFSCORRUPTED;
if (unlikely(XFS_TEST_ERROR(
(XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_EXTENTS &&
XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_BTREE),
- mp, XFS_ERRTAG_BMAPIFORMAT, XFS_RANDOM_BMAPIFORMAT))) {
+ mp, XFS_ERRTAG_BMAPIFORMAT))) {
XFS_ERROR_REPORT("xfs_bmap_split_extent_at",
XFS_ERRLEVEL_LOW, mp);
return -EFSCORRUPTED;
int whichfork,
xfs_fileoff_t startoff,
xfs_fsblock_t startblock,
- xfs_filblks_t blockcount,
+ xfs_filblks_t *blockcount,
xfs_exntst_t state)
{
- int error = 0, done;
+ xfs_fsblock_t firstfsb;
+ int error = 0;
trace_xfs_bmap_deferred(tp->t_mountp,
XFS_FSB_TO_AGNO(tp->t_mountp, startblock), type,
XFS_FSB_TO_AGBNO(tp->t_mountp, startblock),
- ip->i_ino, whichfork, startoff, blockcount, state);
+ ip->i_ino, whichfork, startoff, *blockcount, state);
if (WARN_ON_ONCE(whichfork != XFS_DATA_FORK))
return -EFSCORRUPTED;
if (XFS_TEST_ERROR(false, tp->t_mountp,
- XFS_ERRTAG_BMAP_FINISH_ONE,
- XFS_RANDOM_BMAP_FINISH_ONE))
+ XFS_ERRTAG_BMAP_FINISH_ONE))
return -EIO;
switch (type) {
case XFS_BMAP_MAP:
- error = xfs_bmapi_remap(tp, ip, startoff, blockcount,
+ error = xfs_bmapi_remap(tp, ip, startoff, *blockcount,
startblock, dfops);
+ *blockcount = 0;
break;
case XFS_BMAP_UNMAP:
- error = xfs_bunmapi(tp, ip, startoff, blockcount,
- XFS_BMAPI_REMAP, 1, &startblock, dfops, &done);
- ASSERT(done);
+ error = __xfs_bunmapi(tp, ip, startoff, blockcount,
+ XFS_BMAPI_REMAP, 1, &firstfsb, dfops);
break;
default:
ASSERT(0);
int xfs_bmap_finish_one(struct xfs_trans *tp, struct xfs_defer_ops *dfops,
struct xfs_inode *ip, enum xfs_bmap_intent_type type,
int whichfork, xfs_fileoff_t startoff, xfs_fsblock_t startblock,
- xfs_filblks_t blockcount, xfs_exntst_t state);
+ xfs_filblks_t *blockcount, xfs_exntst_t state);
int xfs_bmap_map_extent(struct xfs_mount *mp, struct xfs_defer_ops *dfops,
struct xfs_inode *ip, struct xfs_bmbt_irec *imap);
int xfs_bmap_unmap_extent(struct xfs_mount *mp, struct xfs_defer_ops *dfops,
*/
STATIC void
__xfs_bmbt_get_all(
- __uint64_t l0,
- __uint64_t l1,
+ uint64_t l0,
+ uint64_t l1,
xfs_bmbt_irec_t *s)
{
int ext_flag;
cpu_to_be64(xfs_bmbt_disk_get_startoff(&rec->bmbt));
}
+STATIC void
+xfs_bmbt_init_high_key_from_rec(
+ union xfs_btree_key *key,
+ union xfs_btree_rec *rec)
+{
+ key->bmbt.br_startoff = cpu_to_be64(
+ xfs_bmbt_disk_get_startoff(&rec->bmbt) +
+ xfs_bmbt_disk_get_blockcount(&rec->bmbt) - 1);
+}
+
STATIC void
xfs_bmbt_init_rec_from_cur(
struct xfs_btree_cur *cur,
ptr->l = 0;
}
-STATIC __int64_t
+STATIC int64_t
xfs_bmbt_key_diff(
struct xfs_btree_cur *cur,
union xfs_btree_key *key)
{
- return (__int64_t)be64_to_cpu(key->bmbt.br_startoff) -
+ return (int64_t)be64_to_cpu(key->bmbt.br_startoff) -
cur->bc_rec.b.br_startoff;
}
+STATIC int64_t
+xfs_bmbt_diff_two_keys(
+ struct xfs_btree_cur *cur,
+ union xfs_btree_key *k1,
+ union xfs_btree_key *k2)
+{
+ return (int64_t)be64_to_cpu(k1->bmbt.br_startoff) -
+ be64_to_cpu(k2->bmbt.br_startoff);
+}
+
static bool
xfs_bmbt_verify(
struct xfs_buf *bp)
};
-#if defined(DEBUG) || defined(XFS_WARN)
STATIC int
xfs_bmbt_keys_inorder(
struct xfs_btree_cur *cur,
xfs_bmbt_disk_get_blockcount(&r1->bmbt) <=
xfs_bmbt_disk_get_startoff(&r2->bmbt);
}
-#endif /* DEBUG */
static const struct xfs_btree_ops xfs_bmbt_ops = {
.rec_len = sizeof(xfs_bmbt_rec_t),
.get_minrecs = xfs_bmbt_get_minrecs,
.get_dmaxrecs = xfs_bmbt_get_dmaxrecs,
.init_key_from_rec = xfs_bmbt_init_key_from_rec,
+ .init_high_key_from_rec = xfs_bmbt_init_high_key_from_rec,
.init_rec_from_cur = xfs_bmbt_init_rec_from_cur,
.init_ptr_from_cur = xfs_bmbt_init_ptr_from_cur,
.key_diff = xfs_bmbt_key_diff,
+ .diff_two_keys = xfs_bmbt_diff_two_keys,
.buf_ops = &xfs_bmbt_buf_ops,
-#if defined(DEBUG) || defined(XFS_WARN)
.keys_inorder = xfs_bmbt_keys_inorder,
.recs_inorder = xfs_bmbt_recs_inorder,
-#endif
};
/*
/*
* Btree magic numbers.
*/
-static const __uint32_t xfs_magics[2][XFS_BTNUM_MAX] = {
+static const uint32_t xfs_magics[2][XFS_BTNUM_MAX] = {
{ XFS_ABTB_MAGIC, XFS_ABTC_MAGIC, 0, XFS_BMAP_MAGIC, XFS_IBT_MAGIC,
XFS_FIBT_MAGIC, 0 },
{ XFS_ABTB_CRC_MAGIC, XFS_ABTC_CRC_MAGIC, XFS_RMAP_CRC_MAGIC,
XFS_REFC_CRC_MAGIC }
};
-__uint32_t
+uint32_t
xfs_btree_magic(
int crc,
xfs_btnum_t btnum)
{
- __uint32_t magic = xfs_magics[crc][btnum];
+ uint32_t magic = xfs_magics[crc][btnum];
/* Ensure we asked for crc for crc-only magics. */
ASSERT(magic != 0);
be64_to_cpu(block->bb_u.l.bb_rightsib)));
if (unlikely(XFS_TEST_ERROR(!lblock_ok, mp,
- XFS_ERRTAG_BTREE_CHECK_LBLOCK,
- XFS_RANDOM_BTREE_CHECK_LBLOCK))) {
+ XFS_ERRTAG_BTREE_CHECK_LBLOCK))) {
if (bp)
trace_xfs_btree_corrupt(bp, _RET_IP_);
XFS_ERROR_REPORT(__func__, XFS_ERRLEVEL_LOW, mp);
block->bb_u.s.bb_rightsib;
if (unlikely(XFS_TEST_ERROR(!sblock_ok, mp,
- XFS_ERRTAG_BTREE_CHECK_SBLOCK,
- XFS_RANDOM_BTREE_CHECK_SBLOCK))) {
+ XFS_ERRTAG_BTREE_CHECK_SBLOCK))) {
if (bp)
trace_xfs_btree_corrupt(bp, _RET_IP_);
XFS_ERROR_REPORT(__func__, XFS_ERRLEVEL_LOW, mp);
/*
* Return a pointer to the n-th record in the btree block.
*/
-STATIC union xfs_btree_rec *
+union xfs_btree_rec *
xfs_btree_rec_addr(
struct xfs_btree_cur *cur,
int n,
/*
* Return a pointer to the n-th key in the btree block.
*/
-STATIC union xfs_btree_key *
+union xfs_btree_key *
xfs_btree_key_addr(
struct xfs_btree_cur *cur,
int n,
/*
* Return a pointer to the n-th high key in the btree block.
*/
-STATIC union xfs_btree_key *
+union xfs_btree_key *
xfs_btree_high_key_addr(
struct xfs_btree_cur *cur,
int n,
/*
* Return a pointer to the n-th block pointer in the btree block.
*/
-STATIC union xfs_btree_ptr *
+union xfs_btree_ptr *
xfs_btree_ptr_addr(
struct xfs_btree_cur *cur,
int n,
* Retrieve the block pointer from the cursor at the given level.
* This may be an inode btree root or from a buffer.
*/
-STATIC struct xfs_btree_block * /* generic btree block pointer */
+struct xfs_btree_block * /* generic btree block pointer */
xfs_btree_get_block(
struct xfs_btree_cur *cur, /* btree cursor */
int level, /* level in btree */
*/
void
xfs_btree_offsets(
- __int64_t fields, /* bitmask of fields */
+ int64_t fields, /* bitmask of fields */
const short *offsets, /* table of field offsets */
int nbits, /* number of bits to inspect */
int *first, /* output: first byte offset */
int *last) /* output: last byte offset */
{
int i; /* current bit number */
- __int64_t imask; /* mask for current bit number */
+ int64_t imask; /* mask for current bit number */
ASSERT(fields != 0);
/*
return error;
}
-STATIC int
+int
xfs_btree_lookup_get_block(
struct xfs_btree_cur *cur, /* btree cursor */
int level, /* level in the btree */
int *stat) /* success/failure */
{
struct xfs_btree_block *block; /* current btree block */
- __int64_t diff; /* difference for the current key */
+ int64_t diff; /* difference for the current key */
int error; /* error return value */
int keyno; /* current key number */
int level; /* level in the btree */
* recovery completion writes the changes to disk.
*/
struct xfs_btree_block_change_owner_info {
- __uint64_t new_owner;
+ uint64_t new_owner;
struct list_head *buffer_list;
};
int
xfs_btree_change_owner(
struct xfs_btree_cur *cur,
- __uint64_t new_owner,
+ uint64_t new_owner,
struct list_head *buffer_list)
{
struct xfs_btree_block_change_owner_info bbcoi;
{
union xfs_btree_rec *recp;
union xfs_btree_key rec_key;
- __int64_t diff;
+ int64_t diff;
int stat;
bool firstrec = true;
int error;
union xfs_btree_key *hkp;
union xfs_btree_rec *recp;
struct xfs_btree_block *block;
- __int64_t ldiff;
- __int64_t hdiff;
+ int64_t ldiff;
+ int64_t hdiff;
int level;
struct xfs_buf *bp;
int i;
xfs_btree_query_range_fn fn,
void *priv)
{
- union xfs_btree_irec low_rec;
- union xfs_btree_irec high_rec;
+ union xfs_btree_key low_key;
+ union xfs_btree_key high_key;
+
+ memset(&cur->bc_rec, 0, sizeof(cur->bc_rec));
+ memset(&low_key, 0, sizeof(low_key));
+ memset(&high_key, 0xFF, sizeof(high_key));
- memset(&low_rec, 0, sizeof(low_rec));
- memset(&high_rec, 0xFF, sizeof(high_rec));
- return xfs_btree_query_range(cur, &low_rec, &high_rec, fn, priv);
+ return xfs_btree_simple_query_range(cur, &low_key, &high_key, fn, priv);
}
/*
#define XFS_BTNUM_RMAP ((xfs_btnum_t)XFS_BTNUM_RMAPi)
#define XFS_BTNUM_REFC ((xfs_btnum_t)XFS_BTNUM_REFCi)
-__uint32_t xfs_btree_magic(int crc, xfs_btnum_t btnum);
+uint32_t xfs_btree_magic(int crc, xfs_btnum_t btnum);
/*
* For logging record fields.
union xfs_btree_rec *rec);
/* difference between key value and cursor value */
- __int64_t (*key_diff)(struct xfs_btree_cur *cur,
+ int64_t (*key_diff)(struct xfs_btree_cur *cur,
union xfs_btree_key *key);
/*
* Difference between key2 and key1 -- positive if key1 > key2,
* negative if key1 < key2, and zero if equal.
*/
- __int64_t (*diff_two_keys)(struct xfs_btree_cur *cur,
+ int64_t (*diff_two_keys)(struct xfs_btree_cur *cur,
union xfs_btree_key *key1,
union xfs_btree_key *key2);
const struct xfs_buf_ops *buf_ops;
-#if defined(DEBUG) || defined(XFS_WARN)
/* check that k1 is lower than k2 */
int (*keys_inorder)(struct xfs_btree_cur *cur,
union xfs_btree_key *k1,
int (*recs_inorder)(struct xfs_btree_cur *cur,
union xfs_btree_rec *r1,
union xfs_btree_rec *r2);
-#endif
};
/*
union xfs_btree_irec bc_rec; /* current insert/search record value */
struct xfs_buf *bc_bufs[XFS_BTREE_MAXLEVELS]; /* buf ptr per level */
int bc_ptrs[XFS_BTREE_MAXLEVELS]; /* key/record # */
- __uint8_t bc_ra[XFS_BTREE_MAXLEVELS]; /* readahead bits */
+ uint8_t bc_ra[XFS_BTREE_MAXLEVELS]; /* readahead bits */
#define XFS_BTCUR_LEFTRA 1 /* left sibling has been read-ahead */
#define XFS_BTCUR_RIGHTRA 2 /* right sibling has been read-ahead */
- __uint8_t bc_nlevels; /* number of levels in the tree */
- __uint8_t bc_blocklog; /* log2(blocksize) of btree blocks */
+ uint8_t bc_nlevels; /* number of levels in the tree */
+ uint8_t bc_blocklog; /* log2(blocksize) of btree blocks */
xfs_btnum_t bc_btnum; /* identifies which btree type */
int bc_statoff; /* offset of btre stats array */
union {
*/
void
xfs_btree_offsets(
- __int64_t fields, /* bitmask of fields */
+ int64_t fields, /* bitmask of fields */
const short *offsets,/* table of field offsets */
int nbits, /* number of bits to inspect */
int *first, /* output: first byte offset */
int xfs_btree_insert(struct xfs_btree_cur *, int *);
int xfs_btree_delete(struct xfs_btree_cur *, int *);
int xfs_btree_get_rec(struct xfs_btree_cur *, union xfs_btree_rec **, int *);
-int xfs_btree_change_owner(struct xfs_btree_cur *cur, __uint64_t new_owner,
+int xfs_btree_change_owner(struct xfs_btree_cur *cur, uint64_t new_owner,
struct list_head *buffer_list);
/*
}
static inline void xfs_btree_set_numrecs(struct xfs_btree_block *block,
- __uint16_t numrecs)
+ uint16_t numrecs)
{
block->bb_numrecs = cpu_to_be16(numrecs);
}
int xfs_btree_count_blocks(struct xfs_btree_cur *cur, xfs_extlen_t *blocks);
+union xfs_btree_rec *xfs_btree_rec_addr(struct xfs_btree_cur *cur, int n,
+ struct xfs_btree_block *block);
+union xfs_btree_key *xfs_btree_key_addr(struct xfs_btree_cur *cur, int n,
+ struct xfs_btree_block *block);
+union xfs_btree_key *xfs_btree_high_key_addr(struct xfs_btree_cur *cur, int n,
+ struct xfs_btree_block *block);
+union xfs_btree_ptr *xfs_btree_ptr_addr(struct xfs_btree_cur *cur, int n,
+ struct xfs_btree_block *block);
+int xfs_btree_lookup_get_block(struct xfs_btree_cur *cur, int level,
+ union xfs_btree_ptr *pp, struct xfs_btree_block **blkp);
+struct xfs_btree_block *xfs_btree_get_block(struct xfs_btree_cur *cur,
+ int level, struct xfs_buf **bpp);
+
#endif /* __XFS_BTREE_H__ */
#ifndef _XFS_CKSUM_H
#define _XFS_CKSUM_H 1
-#define XFS_CRC_SEED (~(__uint32_t)0)
+#define XFS_CRC_SEED (~(uint32_t)0)
/*
* Calculate the intermediate checksum for a buffer that has the CRC field
* cksum_offset parameter. We do not modify the buffer during verification,
* hence we have to split the CRC calculation across the cksum_offset.
*/
-static inline __uint32_t
+static inline uint32_t
xfs_start_cksum_safe(char *buffer, size_t length, unsigned long cksum_offset)
{
- __uint32_t zero = 0;
- __uint32_t crc;
+ uint32_t zero = 0;
+ uint32_t crc;
/* Calculate CRC up to the checksum. */
crc = crc32c(XFS_CRC_SEED, buffer, cksum_offset);
* Fast CRC method where the buffer is modified. Callers must have exclusive
* access to the buffer while the calculation takes place.
*/
-static inline __uint32_t
+static inline uint32_t
xfs_start_cksum_update(char *buffer, size_t length, unsigned long cksum_offset)
{
/* zero the CRC field */
* so that it is consistent on disk.
*/
static inline __le32
-xfs_end_cksum(__uint32_t crc)
+xfs_end_cksum(uint32_t crc)
{
return ~cpu_to_le32(crc);
}
static inline void
xfs_update_cksum(char *buffer, size_t length, unsigned long cksum_offset)
{
- __uint32_t crc = xfs_start_cksum_update(buffer, length, cksum_offset);
+ uint32_t crc = xfs_start_cksum_update(buffer, length, cksum_offset);
*(__le32 *)(buffer + cksum_offset) = xfs_end_cksum(crc);
}
static inline int
xfs_verify_cksum(char *buffer, size_t length, unsigned long cksum_offset)
{
- __uint32_t crc = xfs_start_cksum_safe(buffer, length, cksum_offset);
+ uint32_t crc = xfs_start_cksum_safe(buffer, length, cksum_offset);
return *(__le32 *)(buffer + cksum_offset) == xfs_end_cksum(crc);
}
err = xfs_da_read_buf(tp, dp, bno, mappedbno, bpp,
which_fork, &xfs_da3_node_buf_ops);
- if (!err && tp) {
+ if (!err && tp && *bpp) {
struct xfs_da_blkinfo *info = (*bpp)->b_addr;
int type;
return;
break;
case XFS_DIR2_LEAFN_MAGIC:
- lasthash = xfs_dir2_leafn_lasthash(dp, blk->bp, &count);
+ lasthash = xfs_dir2_leaf_lasthash(dp, blk->bp, &count);
if (count == 0)
return;
break;
if (blk->magic == XFS_DIR2_LEAFN_MAGIC ||
blk->magic == XFS_DIR3_LEAFN_MAGIC) {
blk->magic = XFS_DIR2_LEAFN_MAGIC;
- blk->hashval = xfs_dir2_leafn_lasthash(args->dp,
- blk->bp, NULL);
+ blk->hashval = xfs_dir2_leaf_lasthash(args->dp,
+ blk->bp, NULL);
break;
}
blk->magic = XFS_DIR2_LEAFN_MAGIC;
ASSERT(level == path->active-1);
blk->index = 0;
- blk->hashval = xfs_dir2_leafn_lasthash(args->dp,
- blk->bp, NULL);
+ blk->hashval = xfs_dir2_leaf_lasthash(args->dp,
+ blk->bp, NULL);
break;
default:
ASSERT(0);
* This is implemented with some source-level loop unrolling.
*/
xfs_dahash_t
-xfs_da_hashname(const __uint8_t *name, int namelen)
+xfs_da_hashname(const uint8_t *name, int namelen)
{
xfs_dahash_t hash;
*/
typedef struct xfs_da_args {
struct xfs_da_geometry *geo; /* da block geometry */
- const __uint8_t *name; /* string (maybe not NULL terminated) */
+ const uint8_t *name; /* string (maybe not NULL terminated) */
int namelen; /* length of string (maybe no NULL) */
- __uint8_t filetype; /* filetype of inode for directories */
- __uint8_t *value; /* set of bytes (maybe contain NULLs) */
+ uint8_t filetype; /* filetype of inode for directories */
+ uint8_t *value; /* set of bytes (maybe contain NULLs) */
int valuelen; /* length of value */
int flags; /* argument flags (eg: ATTR_NOCREATE) */
xfs_dahash_t hashval; /* hash value of name */
int xfs_da_shrink_inode(xfs_da_args_t *args, xfs_dablk_t dead_blkno,
struct xfs_buf *dead_buf);
-uint xfs_da_hashname(const __uint8_t *name_string, int name_length);
+uint xfs_da_hashname(const uint8_t *name_string, int name_length);
enum xfs_dacmp xfs_da_compname(struct xfs_da_args *args,
const unsigned char *name, int len);
struct xfs_dir2_sf_hdr *hdr,
int len)
{
- return xfs_dir2_sf_entsize(hdr, len) + sizeof(__uint8_t);
+ return xfs_dir2_sf_entsize(hdr, len) + sizeof(uint8_t);
}
static struct xfs_dir2_sf_entry *
* not necessary. For non-filetype enable directories, the type is always
* unknown and we never store the value.
*/
-static __uint8_t
+static uint8_t
xfs_dir2_sfe_get_ftype(
struct xfs_dir2_sf_entry *sfep)
{
static void
xfs_dir2_sfe_put_ftype(
struct xfs_dir2_sf_entry *sfep,
- __uint8_t ftype)
+ uint8_t ftype)
{
ASSERT(ftype < XFS_DIR3_FT_MAX);
}
-static __uint8_t
+static uint8_t
xfs_dir3_sfe_get_ftype(
struct xfs_dir2_sf_entry *sfep)
{
- __uint8_t ftype;
+ uint8_t ftype;
ftype = sfep->name[sfep->namelen];
if (ftype >= XFS_DIR3_FT_MAX)
static void
xfs_dir3_sfe_put_ftype(
struct xfs_dir2_sf_entry *sfep,
- __uint8_t ftype)
+ uint8_t ftype)
{
ASSERT(ftype < XFS_DIR3_FT_MAX);
static xfs_ino_t
xfs_dir2_sf_get_ino(
struct xfs_dir2_sf_hdr *hdr,
- __uint8_t *from)
+ uint8_t *from)
{
if (hdr->i8count)
return get_unaligned_be64(from) & 0x00ffffffffffffffULL;
static void
xfs_dir2_sf_put_ino(
struct xfs_dir2_sf_hdr *hdr,
- __uint8_t *to,
+ uint8_t *to,
xfs_ino_t ino)
{
ASSERT((ino & 0xff00000000000000ULL) == 0);
#define XFS_DIR3_DATA_ENTSIZE(n) \
round_up((offsetof(struct xfs_dir2_data_entry, name[0]) + (n) + \
- sizeof(xfs_dir2_data_off_t) + sizeof(__uint8_t)), \
+ sizeof(xfs_dir2_data_off_t) + sizeof(uint8_t)), \
XFS_DIR2_DATA_ALIGN)
static int
return XFS_DIR3_DATA_ENTSIZE(n);
}
-static __uint8_t
+static uint8_t
xfs_dir2_data_get_ftype(
struct xfs_dir2_data_entry *dep)
{
static void
xfs_dir2_data_put_ftype(
struct xfs_dir2_data_entry *dep,
- __uint8_t ftype)
+ uint8_t ftype)
{
ASSERT(ftype < XFS_DIR3_FT_MAX);
}
-static __uint8_t
+static uint8_t
xfs_dir3_data_get_ftype(
struct xfs_dir2_data_entry *dep)
{
- __uint8_t ftype = dep->name[dep->namelen];
+ uint8_t ftype = dep->name[dep->namelen];
if (ftype >= XFS_DIR3_FT_MAX)
return XFS_DIR3_FT_UNKNOWN;
static void
xfs_dir3_data_put_ftype(
struct xfs_dir2_data_entry *dep,
- __uint8_t type)
+ uint8_t type)
{
ASSERT(type < XFS_DIR3_FT_MAX);
ASSERT(dep->namelen != 0);
* appropriate.
*/
struct xfs_da3_icnode_hdr {
- __uint32_t forw;
- __uint32_t back;
- __uint16_t magic;
- __uint16_t count;
- __uint16_t level;
+ uint32_t forw;
+ uint32_t back;
+ uint16_t magic;
+ uint16_t count;
+ uint16_t level;
};
/*
/*
* Byte offset in data block and shortform entry.
*/
-typedef __uint16_t xfs_dir2_data_off_t;
+typedef uint16_t xfs_dir2_data_off_t;
#define NULLDATAOFF 0xffffU
typedef uint xfs_dir2_data_aoff_t; /* argument form */
/*
* Offset in data space of a data entry.
*/
-typedef __uint32_t xfs_dir2_dataptr_t;
+typedef uint32_t xfs_dir2_dataptr_t;
#define XFS_DIR2_MAX_DATAPTR ((xfs_dir2_dataptr_t)0xffffffff)
#define XFS_DIR2_NULL_DATAPTR ((xfs_dir2_dataptr_t)0)
/*
* Directory block number (logical dirblk in file)
*/
-typedef __uint32_t xfs_dir2_db_t;
+typedef uint32_t xfs_dir2_db_t;
#define XFS_INO32_SIZE 4
#define XFS_INO64_SIZE 8
* over them.
*/
typedef struct xfs_dir2_sf_hdr {
- __uint8_t count; /* count of entries */
- __uint8_t i8count; /* count of 8-byte inode #s */
- __uint8_t parent[8]; /* parent dir inode number */
+ uint8_t count; /* count of entries */
+ uint8_t i8count; /* count of 8-byte inode #s */
+ uint8_t parent[8]; /* parent dir inode number */
} __packed xfs_dir2_sf_hdr_t;
typedef struct xfs_dir2_sf_entry {
};
struct xfs_dir3_icleaf_hdr {
- __uint32_t forw;
- __uint32_t back;
- __uint16_t magic;
- __uint16_t count;
- __uint16_t stale;
+ uint32_t forw;
+ uint32_t back;
+ uint16_t magic;
+ uint16_t count;
+ uint16_t stale;
};
/*
* xfs_dir3_free_hdr_from_disk/xfs_dir3_free_hdr_to_disk.
*/
struct xfs_dir3_icfree_hdr {
- __uint32_t magic;
- __uint32_t firstdb;
- __uint32_t nvalid;
- __uint32_t nused;
+ uint32_t magic;
+ uint32_t firstdb;
+ uint32_t nvalid;
+ uint32_t nused;
};
__u8 padding;
} hdr;
struct xfs_attr_sf_entry {
- __uint8_t namelen; /* actual length of name (no NULL) */
- __uint8_t valuelen; /* actual length of value (no NULL) */
- __uint8_t flags; /* flags bits (see xfs_attr_leaf.h) */
- __uint8_t nameval[1]; /* name & value bytes concatenated */
+ uint8_t namelen; /* actual length of name (no NULL) */
+ uint8_t valuelen; /* actual length of value (no NULL) */
+ uint8_t flags; /* flags bits (see xfs_attr_leaf.h) */
+ uint8_t nameval[1]; /* name & value bytes concatenated */
} list[1]; /* variable sized array */
} xfs_attr_shortform_t;
* incore, neutral version of the attribute leaf header
*/
struct xfs_attr3_icleaf_hdr {
- __uint32_t forw;
- __uint32_t back;
- __uint16_t magic;
- __uint16_t count;
- __uint16_t usedbytes;
+ uint32_t forw;
+ uint32_t back;
+ uint16_t magic;
+ uint16_t count;
+ uint16_t usedbytes;
/*
* firstused is 32-bit here instead of 16-bit like the on-disk variant
* to support maximum fsb size of 64k without overflow issues throughout
* the attr code. Instead, the overflow condition is handled on
* conversion to/from disk.
*/
- __uint32_t firstused;
+ uint32_t firstused;
__u8 holes;
struct {
- __uint16_t base;
- __uint16_t size;
+ uint16_t base;
+ uint16_t size;
} freemap[XFS_ATTR_LEAF_MAPSIZE];
};
agblkno != 0 &&
ioff < (1 << mp->m_sb.sb_inopblog) &&
XFS_AGINO_TO_INO(mp, agno, agino) == ino;
- if (unlikely(XFS_TEST_ERROR(!ino_ok, mp, XFS_ERRTAG_DIR_INO_VALIDATE,
- XFS_RANDOM_DIR_INO_VALIDATE))) {
+ if (unlikely(XFS_TEST_ERROR(!ino_ok, mp, XFS_ERRTAG_DIR_INO_VALIDATE))) {
xfs_warn(mp, "Invalid inode number 0x%Lx",
(unsigned long long) ino);
XFS_ERROR_REPORT("xfs_dir_ino_validate", XFS_ERRLEVEL_LOW, mp);
struct xfs_dir2_sf_entry *
(*sf_nextentry)(struct xfs_dir2_sf_hdr *hdr,
struct xfs_dir2_sf_entry *sfep);
- __uint8_t (*sf_get_ftype)(struct xfs_dir2_sf_entry *sfep);
+ uint8_t (*sf_get_ftype)(struct xfs_dir2_sf_entry *sfep);
void (*sf_put_ftype)(struct xfs_dir2_sf_entry *sfep,
- __uint8_t ftype);
+ uint8_t ftype);
xfs_ino_t (*sf_get_ino)(struct xfs_dir2_sf_hdr *hdr,
struct xfs_dir2_sf_entry *sfep);
void (*sf_put_ino)(struct xfs_dir2_sf_hdr *hdr,
xfs_ino_t ino);
int (*data_entsize)(int len);
- __uint8_t (*data_get_ftype)(struct xfs_dir2_data_entry *dep);
+ uint8_t (*data_get_ftype)(struct xfs_dir2_data_entry *dep);
void (*data_put_ftype)(struct xfs_dir2_data_entry *dep,
- __uint8_t ftype);
+ uint8_t ftype);
__be16 * (*data_entry_tag_p)(struct xfs_dir2_data_entry *dep);
struct xfs_dir2_data_free *
(*data_bestfree_p)(struct xfs_dir2_data_hdr *hdr);
err = xfs_da_read_buf(tp, dp, mp->m_dir_geo->datablk, -1, bpp,
XFS_DATA_FORK, &xfs_dir3_block_buf_ops);
- if (!err && tp)
+ if (!err && tp && *bpp)
xfs_trans_buf_set_type(tp, *bpp, XFS_BLFT_DIR_BLOCK_BUF);
return err;
}
static bool
xfs_dir3_leaf_verify(
struct xfs_buf *bp,
- __uint16_t magic)
+ uint16_t magic)
{
struct xfs_mount *mp = bp->b_target->bt_mount;
struct xfs_dir2_leaf *leaf = bp->b_addr;
if (xfs_sb_version_hascrc(&mp->m_sb)) {
struct xfs_dir3_leaf_hdr *leaf3 = bp->b_addr;
- __uint16_t magic3;
+ uint16_t magic3;
magic3 = (magic == XFS_DIR2_LEAF1_MAGIC) ? XFS_DIR3_LEAF1_MAGIC
: XFS_DIR3_LEAFN_MAGIC;
static void
__read_verify(
struct xfs_buf *bp,
- __uint16_t magic)
+ uint16_t magic)
{
struct xfs_mount *mp = bp->b_target->bt_mount;
static void
__write_verify(
struct xfs_buf *bp,
- __uint16_t magic)
+ uint16_t magic)
{
struct xfs_mount *mp = bp->b_target->bt_mount;
struct xfs_buf_log_item *bip = bp->b_fspriv;
.verify_write = xfs_dir3_leafn_write_verify,
};
-static int
+int
xfs_dir3_leaf_read(
struct xfs_trans *tp,
struct xfs_inode *dp,
err = xfs_da_read_buf(tp, dp, fbno, mappedbno, bpp,
XFS_DATA_FORK, &xfs_dir3_leaf1_buf_ops);
- if (!err && tp)
+ if (!err && tp && *bpp)
xfs_trans_buf_set_type(tp, *bpp, XFS_BLFT_DIR_LEAF1_BUF);
return err;
}
err = xfs_da_read_buf(tp, dp, fbno, mappedbno, bpp,
XFS_DATA_FORK, &xfs_dir3_leafn_buf_ops);
- if (!err && tp)
+ if (!err && tp && *bpp)
xfs_trans_buf_set_type(tp, *bpp, XFS_BLFT_DIR_LEAFN_BUF);
return err;
}
struct xfs_trans *tp,
struct xfs_buf *bp,
xfs_ino_t owner,
- __uint16_t type)
+ uint16_t type)
{
struct xfs_dir2_leaf *leaf = bp->b_addr;
xfs_da_args_t *args,
xfs_dir2_db_t bno,
struct xfs_buf **bpp,
- __uint16_t magic)
+ uint16_t magic)
{
struct xfs_inode *dp = args->dp;
struct xfs_trans *tp = args->trans;
* Stale entries are ok.
*/
xfs_dahash_t /* hash value */
-xfs_dir2_leafn_lasthash(
+xfs_dir2_leaf_lasthash(
struct xfs_inode *dp,
struct xfs_buf *bp, /* leaf buffer */
int *count) /* count of entries in leaf */
dp->d_ops->leaf_hdr_from_disk(&leafhdr, leaf);
ASSERT(leafhdr.magic == XFS_DIR2_LEAFN_MAGIC ||
- leafhdr.magic == XFS_DIR3_LEAFN_MAGIC);
+ leafhdr.magic == XFS_DIR3_LEAFN_MAGIC ||
+ leafhdr.magic == XFS_DIR2_LEAF1_MAGIC ||
+ leafhdr.magic == XFS_DIR3_LEAF1_MAGIC);
if (count)
*count = leafhdr.count;
/*
* Update last hashval in each block since we added the name.
*/
- oldblk->hashval = xfs_dir2_leafn_lasthash(dp, oldblk->bp, NULL);
- newblk->hashval = xfs_dir2_leafn_lasthash(dp, newblk->bp, NULL);
+ oldblk->hashval = xfs_dir2_leaf_lasthash(dp, oldblk->bp, NULL);
+ newblk->hashval = xfs_dir2_leaf_lasthash(dp, newblk->bp, NULL);
xfs_dir3_leaf_check(dp, oldblk->bp);
xfs_dir3_leaf_check(dp, newblk->bp);
return error;
struct xfs_buf **bpp);
/* xfs_dir2_leaf.c */
+extern int xfs_dir3_leaf_read(struct xfs_trans *tp, struct xfs_inode *dp,
+ xfs_dablk_t fbno, xfs_daddr_t mappedbno, struct xfs_buf **bpp);
extern int xfs_dir3_leafn_read(struct xfs_trans *tp, struct xfs_inode *dp,
xfs_dablk_t fbno, xfs_daddr_t mappedbno, struct xfs_buf **bpp);
extern int xfs_dir2_block_to_leaf(struct xfs_da_args *args,
struct xfs_dir2_leaf_entry *ents, int *indexp,
int *lowstalep, int *highstalep, int *lowlogp, int *highlogp);
extern int xfs_dir3_leaf_get_buf(struct xfs_da_args *args, xfs_dir2_db_t bno,
- struct xfs_buf **bpp, __uint16_t magic);
+ struct xfs_buf **bpp, uint16_t magic);
extern void xfs_dir3_leaf_log_ents(struct xfs_da_args *args,
struct xfs_buf *bp, int first, int last);
extern void xfs_dir3_leaf_log_header(struct xfs_da_args *args,
/* xfs_dir2_node.c */
extern int xfs_dir2_leaf_to_node(struct xfs_da_args *args,
struct xfs_buf *lbp);
-extern xfs_dahash_t xfs_dir2_leafn_lasthash(struct xfs_inode *dp,
+extern xfs_dahash_t xfs_dir2_leaf_lasthash(struct xfs_inode *dp,
struct xfs_buf *bp, int *count);
extern int xfs_dir2_leafn_lookup_int(struct xfs_buf *bp,
struct xfs_da_args *args, int *indexp,
extern int xfs_dir2_sf_verify(struct xfs_inode *ip);
/* xfs_dir2_readdir.c */
-extern int xfs_readdir(struct xfs_inode *dp, struct dir_context *ctx,
- size_t bufsize);
+extern int xfs_readdir(struct xfs_trans *tp, struct xfs_inode *dp,
+ struct dir_context *ctx, size_t bufsize);
#endif /* __XFS_DIR2_PRIV_H__ */
int offset;
int size;
int error;
- __uint8_t filetype;
+ uint8_t filetype;
ASSERT(ip->i_d.di_format == XFS_DINODE_FMT_LOCAL);
/*
* Must be padded to 64 bit alignment.
*/
typedef struct xfs_sb {
- __uint32_t sb_magicnum; /* magic number == XFS_SB_MAGIC */
- __uint32_t sb_blocksize; /* logical block size, bytes */
+ uint32_t sb_magicnum; /* magic number == XFS_SB_MAGIC */
+ uint32_t sb_blocksize; /* logical block size, bytes */
xfs_rfsblock_t sb_dblocks; /* number of data blocks */
xfs_rfsblock_t sb_rblocks; /* number of realtime blocks */
xfs_rtblock_t sb_rextents; /* number of realtime extents */
xfs_agnumber_t sb_agcount; /* number of allocation groups */
xfs_extlen_t sb_rbmblocks; /* number of rt bitmap blocks */
xfs_extlen_t sb_logblocks; /* number of log blocks */
- __uint16_t sb_versionnum; /* header version == XFS_SB_VERSION */
- __uint16_t sb_sectsize; /* volume sector size, bytes */
- __uint16_t sb_inodesize; /* inode size, bytes */
- __uint16_t sb_inopblock; /* inodes per block */
+ uint16_t sb_versionnum; /* header version == XFS_SB_VERSION */
+ uint16_t sb_sectsize; /* volume sector size, bytes */
+ uint16_t sb_inodesize; /* inode size, bytes */
+ uint16_t sb_inopblock; /* inodes per block */
char sb_fname[12]; /* file system name */
- __uint8_t sb_blocklog; /* log2 of sb_blocksize */
- __uint8_t sb_sectlog; /* log2 of sb_sectsize */
- __uint8_t sb_inodelog; /* log2 of sb_inodesize */
- __uint8_t sb_inopblog; /* log2 of sb_inopblock */
- __uint8_t sb_agblklog; /* log2 of sb_agblocks (rounded up) */
- __uint8_t sb_rextslog; /* log2 of sb_rextents */
- __uint8_t sb_inprogress; /* mkfs is in progress, don't mount */
- __uint8_t sb_imax_pct; /* max % of fs for inode space */
+ uint8_t sb_blocklog; /* log2 of sb_blocksize */
+ uint8_t sb_sectlog; /* log2 of sb_sectsize */
+ uint8_t sb_inodelog; /* log2 of sb_inodesize */
+ uint8_t sb_inopblog; /* log2 of sb_inopblock */
+ uint8_t sb_agblklog; /* log2 of sb_agblocks (rounded up) */
+ uint8_t sb_rextslog; /* log2 of sb_rextents */
+ uint8_t sb_inprogress; /* mkfs is in progress, don't mount */
+ uint8_t sb_imax_pct; /* max % of fs for inode space */
/* statistics */
/*
* These fields must remain contiguous. If you really
* want to change their layout, make sure you fix the
* code in xfs_trans_apply_sb_deltas().
*/
- __uint64_t sb_icount; /* allocated inodes */
- __uint64_t sb_ifree; /* free inodes */
- __uint64_t sb_fdblocks; /* free data blocks */
- __uint64_t sb_frextents; /* free realtime extents */
+ uint64_t sb_icount; /* allocated inodes */
+ uint64_t sb_ifree; /* free inodes */
+ uint64_t sb_fdblocks; /* free data blocks */
+ uint64_t sb_frextents; /* free realtime extents */
/*
* End contiguous fields.
*/
xfs_ino_t sb_uquotino; /* user quota inode */
xfs_ino_t sb_gquotino; /* group quota inode */
- __uint16_t sb_qflags; /* quota flags */
- __uint8_t sb_flags; /* misc. flags */
- __uint8_t sb_shared_vn; /* shared version number */
+ uint16_t sb_qflags; /* quota flags */
+ uint8_t sb_flags; /* misc. flags */
+ uint8_t sb_shared_vn; /* shared version number */
xfs_extlen_t sb_inoalignmt; /* inode chunk alignment, fsblocks */
- __uint32_t sb_unit; /* stripe or raid unit */
- __uint32_t sb_width; /* stripe or raid width */
- __uint8_t sb_dirblklog; /* log2 of dir block size (fsbs) */
- __uint8_t sb_logsectlog; /* log2 of the log sector size */
- __uint16_t sb_logsectsize; /* sector size for the log, bytes */
- __uint32_t sb_logsunit; /* stripe unit size for the log */
- __uint32_t sb_features2; /* additional feature bits */
+ uint32_t sb_unit; /* stripe or raid unit */
+ uint32_t sb_width; /* stripe or raid width */
+ uint8_t sb_dirblklog; /* log2 of dir block size (fsbs) */
+ uint8_t sb_logsectlog; /* log2 of the log sector size */
+ uint16_t sb_logsectsize; /* sector size for the log, bytes */
+ uint32_t sb_logsunit; /* stripe unit size for the log */
+ uint32_t sb_features2; /* additional feature bits */
/*
* bad features2 field as a result of failing to pad the sb structure to
* the value in sb_features2 when formatting the incore superblock to
* the disk buffer.
*/
- __uint32_t sb_bad_features2;
+ uint32_t sb_bad_features2;
/* version 5 superblock fields start here */
/* feature masks */
- __uint32_t sb_features_compat;
- __uint32_t sb_features_ro_compat;
- __uint32_t sb_features_incompat;
- __uint32_t sb_features_log_incompat;
+ uint32_t sb_features_compat;
+ uint32_t sb_features_ro_compat;
+ uint32_t sb_features_incompat;
+ uint32_t sb_features_log_incompat;
- __uint32_t sb_crc; /* superblock crc */
+ uint32_t sb_crc; /* superblock crc */
xfs_extlen_t sb_spino_align; /* sparse inode chunk alignment */
xfs_ino_t sb_pquotino; /* project quota inode */
static inline bool
xfs_sb_has_compat_feature(
struct xfs_sb *sbp,
- __uint32_t feature)
+ uint32_t feature)
{
return (sbp->sb_features_compat & feature) != 0;
}
static inline bool
xfs_sb_has_ro_compat_feature(
struct xfs_sb *sbp,
- __uint32_t feature)
+ uint32_t feature)
{
return (sbp->sb_features_ro_compat & feature) != 0;
}
static inline bool
xfs_sb_has_incompat_feature(
struct xfs_sb *sbp,
- __uint32_t feature)
+ uint32_t feature)
{
return (sbp->sb_features_incompat & feature) != 0;
}
static inline bool
xfs_sb_has_incompat_log_feature(
struct xfs_sb *sbp,
- __uint32_t feature)
+ uint32_t feature)
{
return (sbp->sb_features_log_incompat & feature) != 0;
}
*/
#define XFS_FSB_TO_B(mp,fsbno) ((xfs_fsize_t)(fsbno) << (mp)->m_sb.sb_blocklog)
#define XFS_B_TO_FSB(mp,b) \
- ((((__uint64_t)(b)) + (mp)->m_blockmask) >> (mp)->m_sb.sb_blocklog)
-#define XFS_B_TO_FSBT(mp,b) (((__uint64_t)(b)) >> (mp)->m_sb.sb_blocklog)
+ ((((uint64_t)(b)) + (mp)->m_blockmask) >> (mp)->m_sb.sb_blocklog)
+#define XFS_B_TO_FSBT(mp,b) (((uint64_t)(b)) >> (mp)->m_sb.sb_blocklog)
#define XFS_B_FSB_OFFSET(mp,b) ((b) & (mp)->m_blockmask)
/*
* next agno_log bits - ag number
* high agno_log-agblklog-inopblog bits - 0
*/
-#define XFS_INO_MASK(k) (__uint32_t)((1ULL << (k)) - 1)
+#define XFS_INO_MASK(k) (uint32_t)((1ULL << (k)) - 1)
#define XFS_INO_OFFSET_BITS(mp) (mp)->m_sb.sb_inopblog
#define XFS_INO_AGBNO_BITS(mp) (mp)->m_sb.sb_agblklog
#define XFS_INO_AGINO_BITS(mp) (mp)->m_agino_log
#define XFS_SYMLINK_CRC_OFF offsetof(struct xfs_dsymlink_hdr, sl_crc)
+#define XFS_SYMLINK_MAXLEN 1024
/*
* The maximum pathlen is 1024 bytes. Since the minimum file system
* blocksize is 512 bytes, we can get a max of 3 extents back from
#define XFS_FIBT_MAGIC 0x46494254 /* 'FIBT' */
#define XFS_FIBT_CRC_MAGIC 0x46494233 /* 'FIB3' */
-typedef __uint64_t xfs_inofree_t;
+typedef uint64_t xfs_inofree_t;
#define XFS_INODES_PER_CHUNK (NBBY * sizeof(xfs_inofree_t))
#define XFS_INODES_PER_CHUNK_LOG (XFS_NBBYLOG + 3)
#define XFS_INOBT_ALL_FREE ((xfs_inofree_t)-1)
#define XFS_INOBT_MASK(i) ((xfs_inofree_t)1 << (i))
#define XFS_INOBT_HOLEMASK_FULL 0 /* holemask for full chunk */
-#define XFS_INOBT_HOLEMASK_BITS (NBBY * sizeof(__uint16_t))
+#define XFS_INOBT_HOLEMASK_BITS (NBBY * sizeof(uint16_t))
#define XFS_INODES_PER_HOLEMASK_BIT \
- (XFS_INODES_PER_CHUNK / (NBBY * sizeof(__uint16_t)))
+ (XFS_INODES_PER_CHUNK / (NBBY * sizeof(uint16_t)))
static inline xfs_inofree_t xfs_inobt_maskn(int i, int n)
{
typedef struct xfs_inobt_rec_incore {
xfs_agino_t ir_startino; /* starting inode number */
- __uint16_t ir_holemask; /* hole mask for sparse chunks */
- __uint8_t ir_count; /* total inode count */
- __uint8_t ir_freecount; /* count of free inodes (set bits) */
+ uint16_t ir_holemask; /* hole mask for sparse chunks */
+ uint8_t ir_count; /* total inode count */
+ uint8_t ir_freecount; /* count of free inodes (set bits) */
xfs_inofree_t ir_free; /* free inode mask */
} xfs_inobt_rec_incore_t;
* rm_offset:54-60 aren't used and should be zero
* rm_offset:0-53 is the block offset within the inode
*/
-#define XFS_RMAP_OFF_ATTR_FORK ((__uint64_t)1ULL << 63)
-#define XFS_RMAP_OFF_BMBT_BLOCK ((__uint64_t)1ULL << 62)
-#define XFS_RMAP_OFF_UNWRITTEN ((__uint64_t)1ULL << 61)
+#define XFS_RMAP_OFF_ATTR_FORK ((uint64_t)1ULL << 63)
+#define XFS_RMAP_OFF_BMBT_BLOCK ((uint64_t)1ULL << 62)
+#define XFS_RMAP_OFF_UNWRITTEN ((uint64_t)1ULL << 61)
-#define XFS_RMAP_LEN_MAX ((__uint32_t)~0U)
+#define XFS_RMAP_LEN_MAX ((uint32_t)~0U)
#define XFS_RMAP_OFF_FLAGS (XFS_RMAP_OFF_ATTR_FORK | \
XFS_RMAP_OFF_BMBT_BLOCK | \
XFS_RMAP_OFF_UNWRITTEN)
-#define XFS_RMAP_OFF_MASK ((__uint64_t)0x3FFFFFFFFFFFFFULL)
+#define XFS_RMAP_OFF_MASK ((uint64_t)0x3FFFFFFFFFFFFFULL)
#define XFS_RMAP_OFF(off) ((off) & XFS_RMAP_OFF_MASK)
struct xfs_rmap_irec {
xfs_agblock_t rm_startblock; /* extent start block */
xfs_extlen_t rm_blockcount; /* extent length */
- __uint64_t rm_owner; /* extent owner */
- __uint64_t rm_offset; /* offset within the owner */
+ uint64_t rm_owner; /* extent owner */
+ uint64_t rm_offset; /* offset within the owner */
unsigned int rm_flags; /* state flags */
};
__be64 l0, l1;
} xfs_bmbt_rec_t;
-typedef __uint64_t xfs_bmbt_rec_base_t; /* use this for casts */
+typedef uint64_t xfs_bmbt_rec_base_t; /* use this for casts */
typedef xfs_bmbt_rec_t xfs_bmdr_rec_t;
typedef struct xfs_bmbt_rec_host {
- __uint64_t l0, l1;
+ uint64_t l0, l1;
} xfs_bmbt_rec_host_t;
/*
* and using two 16bit values to hold new 32bit projid was choosen
* to retain compatibility with "old" filesystems).
*/
-static inline __uint32_t
+static inline uint32_t
bstat_get_projid(struct xfs_bstat *bs)
{
- return (__uint32_t)bs->bs_projid_hi << 16 | bs->bs_projid_lo;
+ return (uint32_t)bs->bs_projid_hi << 16 | bs->bs_projid_lo;
}
/*
} xfs_handle_t;
#define ha_fsid ha_u._ha_fsid
-#define XFS_HSIZE(handle) (((char *) &(handle).ha_fid.fid_pad \
- - (char *) &(handle)) \
- + (handle).ha_fid.fid_len)
-
/*
* Structure passed to XFS_IOC_SWAPEXT
*/
typedef struct xfs_swapext
{
- __int64_t sx_version; /* version */
+ int64_t sx_version; /* version */
#define XFS_SX_VERSION 0
- __int64_t sx_fdtarget; /* fd of target file */
- __int64_t sx_fdtmp; /* fd of tmp file */
+ int64_t sx_fdtarget; /* fd of target file */
+ int64_t sx_fdtmp; /* fd of tmp file */
xfs_off_t sx_offset; /* offset into file */
xfs_off_t sx_length; /* leng from offset */
char sx_pad[16]; /* pad space, unused */
#define XFS_IOC_ATTRLIST_BY_HANDLE _IOW ('X', 122, struct xfs_fsop_attrlist_handlereq)
#define XFS_IOC_ATTRMULTI_BY_HANDLE _IOW ('X', 123, struct xfs_fsop_attrmulti_handlereq)
#define XFS_IOC_FSGEOMETRY _IOR ('X', 124, struct xfs_fsop_geom)
-#define XFS_IOC_GOINGDOWN _IOR ('X', 125, __uint32_t)
+#define XFS_IOC_GOINGDOWN _IOR ('X', 125, uint32_t)
/* XFS_IOC_GETFSUUID ---------- deprecated 140 */
/*
* Allocation group level functions.
*/
-static inline int
+int
xfs_ialloc_cluster_alignment(
struct xfs_mount *mp)
{
return xfs_btree_update(cur, &rec);
}
-/*
- * Get the data from the pointed-to record.
- */
-int /* error */
-xfs_inobt_get_rec(
- struct xfs_btree_cur *cur, /* btree cursor */
- xfs_inobt_rec_incore_t *irec, /* btree record */
- int *stat) /* output: success/failure */
+/* Convert on-disk btree record to incore inobt record. */
+void
+xfs_inobt_btrec_to_irec(
+ struct xfs_mount *mp,
+ union xfs_btree_rec *rec,
+ struct xfs_inobt_rec_incore *irec)
{
- union xfs_btree_rec *rec;
- int error;
-
- error = xfs_btree_get_rec(cur, &rec, stat);
- if (error || *stat == 0)
- return error;
-
irec->ir_startino = be32_to_cpu(rec->inobt.ir_startino);
- if (xfs_sb_version_hassparseinodes(&cur->bc_mp->m_sb)) {
+ if (xfs_sb_version_hassparseinodes(&mp->m_sb)) {
irec->ir_holemask = be16_to_cpu(rec->inobt.ir_u.sp.ir_holemask);
irec->ir_count = rec->inobt.ir_u.sp.ir_count;
irec->ir_freecount = rec->inobt.ir_u.sp.ir_freecount;
be32_to_cpu(rec->inobt.ir_u.f.ir_freecount);
}
irec->ir_free = be64_to_cpu(rec->inobt.ir_free);
+}
+
+/*
+ * Get the data from the pointed-to record.
+ */
+int
+xfs_inobt_get_rec(
+ struct xfs_btree_cur *cur,
+ struct xfs_inobt_rec_incore *irec,
+ int *stat)
+{
+ union xfs_btree_rec *rec;
+ int error;
+
+ error = xfs_btree_get_rec(cur, &rec, stat);
+ if (error || *stat == 0)
+ return error;
+
+ xfs_inobt_btrec_to_irec(cur->bc_mp, rec, irec);
return 0;
}
STATIC int
xfs_inobt_insert_rec(
struct xfs_btree_cur *cur,
- __uint16_t holemask,
- __uint8_t count,
- __int32_t freecount,
+ uint16_t holemask,
+ uint8_t count,
+ int32_t freecount,
xfs_inofree_t free,
int *stat)
{
!xfs_buf_verify_cksum(bp, XFS_AGI_CRC_OFF))
xfs_buf_ioerror(bp, -EFSBADCRC);
else if (XFS_TEST_ERROR(!xfs_agi_verify(bp), mp,
- XFS_ERRTAG_IALLOC_READ_AGI,
- XFS_RANDOM_IALLOC_READ_AGI))
+ XFS_ERRTAG_IALLOC_READ_AGI))
xfs_buf_ioerror(bp, -EFSCORRUPTED);
if (bp->b_error)
int xfs_read_agi(struct xfs_mount *mp, struct xfs_trans *tp,
xfs_agnumber_t agno, struct xfs_buf **bpp);
+union xfs_btree_rec;
+void xfs_inobt_btrec_to_irec(struct xfs_mount *mp, union xfs_btree_rec *rec,
+ struct xfs_inobt_rec_incore *irec);
+
+int xfs_ialloc_cluster_alignment(struct xfs_mount *mp);
#endif /* __XFS_IALLOC_H__ */
key->inobt.ir_startino = rec->inobt.ir_startino;
}
+STATIC void
+xfs_inobt_init_high_key_from_rec(
+ union xfs_btree_key *key,
+ union xfs_btree_rec *rec)
+{
+ __u32 x;
+
+ x = be32_to_cpu(rec->inobt.ir_startino);
+ x += XFS_INODES_PER_CHUNK - 1;
+ key->inobt.ir_startino = cpu_to_be32(x);
+}
+
STATIC void
xfs_inobt_init_rec_from_cur(
struct xfs_btree_cur *cur,
ptr->s = agi->agi_free_root;
}
-STATIC __int64_t
+STATIC int64_t
xfs_inobt_key_diff(
struct xfs_btree_cur *cur,
union xfs_btree_key *key)
{
- return (__int64_t)be32_to_cpu(key->inobt.ir_startino) -
+ return (int64_t)be32_to_cpu(key->inobt.ir_startino) -
cur->bc_rec.i.ir_startino;
}
+STATIC int64_t
+xfs_inobt_diff_two_keys(
+ struct xfs_btree_cur *cur,
+ union xfs_btree_key *k1,
+ union xfs_btree_key *k2)
+{
+ return (int64_t)be32_to_cpu(k1->inobt.ir_startino) -
+ be32_to_cpu(k2->inobt.ir_startino);
+}
+
static int
xfs_inobt_verify(
struct xfs_buf *bp)
.verify_write = xfs_inobt_write_verify,
};
-#if defined(DEBUG) || defined(XFS_WARN)
STATIC int
xfs_inobt_keys_inorder(
struct xfs_btree_cur *cur,
return be32_to_cpu(r1->inobt.ir_startino) + XFS_INODES_PER_CHUNK <=
be32_to_cpu(r2->inobt.ir_startino);
}
-#endif /* DEBUG */
static const struct xfs_btree_ops xfs_inobt_ops = {
.rec_len = sizeof(xfs_inobt_rec_t),
.get_minrecs = xfs_inobt_get_minrecs,
.get_maxrecs = xfs_inobt_get_maxrecs,
.init_key_from_rec = xfs_inobt_init_key_from_rec,
+ .init_high_key_from_rec = xfs_inobt_init_high_key_from_rec,
.init_rec_from_cur = xfs_inobt_init_rec_from_cur,
.init_ptr_from_cur = xfs_inobt_init_ptr_from_cur,
.key_diff = xfs_inobt_key_diff,
.buf_ops = &xfs_inobt_buf_ops,
-#if defined(DEBUG) || defined(XFS_WARN)
+ .diff_two_keys = xfs_inobt_diff_two_keys,
.keys_inorder = xfs_inobt_keys_inorder,
.recs_inorder = xfs_inobt_recs_inorder,
-#endif
};
static const struct xfs_btree_ops xfs_finobt_ops = {
.get_minrecs = xfs_inobt_get_minrecs,
.get_maxrecs = xfs_inobt_get_maxrecs,
.init_key_from_rec = xfs_inobt_init_key_from_rec,
+ .init_high_key_from_rec = xfs_inobt_init_high_key_from_rec,
.init_rec_from_cur = xfs_inobt_init_rec_from_cur,
.init_ptr_from_cur = xfs_finobt_init_ptr_from_cur,
.key_diff = xfs_inobt_key_diff,
.buf_ops = &xfs_inobt_buf_ops,
-#if defined(DEBUG) || defined(XFS_WARN)
+ .diff_two_keys = xfs_inobt_diff_two_keys,
.keys_inorder = xfs_inobt_keys_inorder,
.recs_inorder = xfs_inobt_recs_inorder,
-#endif
};
/*
di_ok = dip->di_magic == cpu_to_be16(XFS_DINODE_MAGIC) &&
xfs_dinode_good_version(mp, dip->di_version);
if (unlikely(XFS_TEST_ERROR(!di_ok, mp,
- XFS_ERRTAG_ITOBP_INOTOBP,
- XFS_RANDOM_ITOBP_INOTOBP))) {
+ XFS_ERRTAG_ITOBP_INOTOBP))) {
if (readahead) {
bp->b_flags &= ~XBF_DONE;
xfs_buf_ioerror(bp, -EIO);
}
}
-static bool
+bool
xfs_dinode_verify(
struct xfs_mount *mp,
xfs_ino_t ino,
struct xfs_mount *mp,
struct xfs_dinode *dip)
{
- __uint32_t crc;
+ uint32_t crc;
if (dip->di_version < 3)
return;
* format specific structures at the appropriate time.
*/
struct xfs_icdinode {
- __int8_t di_version; /* inode version */
- __int8_t di_format; /* format of di_c data */
- __uint16_t di_flushiter; /* incremented on flush */
- __uint32_t di_uid; /* owner's user id */
- __uint32_t di_gid; /* owner's group id */
- __uint16_t di_projid_lo; /* lower part of owner's project id */
- __uint16_t di_projid_hi; /* higher part of owner's project id */
+ int8_t di_version; /* inode version */
+ int8_t di_format; /* format of di_c data */
+ uint16_t di_flushiter; /* incremented on flush */
+ uint32_t di_uid; /* owner's user id */
+ uint32_t di_gid; /* owner's group id */
+ uint16_t di_projid_lo; /* lower part of owner's project id */
+ uint16_t di_projid_hi; /* higher part of owner's project id */
xfs_fsize_t di_size; /* number of bytes in file */
xfs_rfsblock_t di_nblocks; /* # of direct & btree blocks used */
xfs_extlen_t di_extsize; /* basic/minimum extent size for file */
xfs_extnum_t di_nextents; /* number of extents in data fork */
xfs_aextnum_t di_anextents; /* number of extents in attribute fork*/
- __uint8_t di_forkoff; /* attr fork offs, <<3 for 64b align */
- __int8_t di_aformat; /* format of attr fork's data */
- __uint32_t di_dmevmask; /* DMIG event mask */
- __uint16_t di_dmstate; /* DMIG state info */
- __uint16_t di_flags; /* random flags, XFS_DIFLAG_... */
+ uint8_t di_forkoff; /* attr fork offs, <<3 for 64b align */
+ int8_t di_aformat; /* format of attr fork's data */
+ uint32_t di_dmevmask; /* DMIG event mask */
+ uint16_t di_dmstate; /* DMIG state info */
+ uint16_t di_flags; /* random flags, XFS_DIFLAG_... */
- __uint64_t di_flags2; /* more random flags */
- __uint32_t di_cowextsize; /* basic cow extent size for file */
+ uint64_t di_flags2; /* more random flags */
+ uint32_t di_cowextsize; /* basic cow extent size for file */
xfs_ictimestamp_t di_crtime; /* time created */
};
#define xfs_inobp_check(mp, bp)
#endif /* DEBUG */
+bool xfs_dinode_verify(struct xfs_mount *mp, xfs_ino_t ino,
+ struct xfs_dinode *dip);
+
#endif /* __XFS_INODE_BUF_H__ */
* through all the log items definitions and everything they encode into the
* log.
*/
-typedef __uint32_t xlog_tid_t;
+typedef uint32_t xlog_tid_t;
#define XLOG_MIN_ICLOGS 2
#define XLOG_MAX_ICLOGS 8
typedef struct xfs_trans_header {
uint th_magic; /* magic number */
uint th_type; /* transaction type */
- __int32_t th_tid; /* transaction id (unused) */
+ int32_t th_tid; /* transaction id (unused) */
uint th_num_items; /* num items logged by trans */
} xfs_trans_header_t;
* must be added on to the end.
*/
typedef struct xfs_inode_log_format {
- __uint16_t ilf_type; /* inode log item type */
- __uint16_t ilf_size; /* size of this item */
- __uint32_t ilf_fields; /* flags for fields logged */
- __uint16_t ilf_asize; /* size of attr d/ext/root */
- __uint16_t ilf_dsize; /* size of data/ext/root */
- __uint64_t ilf_ino; /* inode number */
+ uint16_t ilf_type; /* inode log item type */
+ uint16_t ilf_size; /* size of this item */
+ uint32_t ilf_fields; /* flags for fields logged */
+ uint16_t ilf_asize; /* size of attr d/ext/root */
+ uint16_t ilf_dsize; /* size of data/ext/root */
+ uint64_t ilf_ino; /* inode number */
union {
- __uint32_t ilfu_rdev; /* rdev value for dev inode*/
+ uint32_t ilfu_rdev; /* rdev value for dev inode*/
uuid_t ilfu_uuid; /* mount point value */
} ilf_u;
- __int64_t ilf_blkno; /* blkno of inode buffer */
- __int32_t ilf_len; /* len of inode buffer */
- __int32_t ilf_boffset; /* off of inode in buffer */
+ int64_t ilf_blkno; /* blkno of inode buffer */
+ int32_t ilf_len; /* len of inode buffer */
+ int32_t ilf_boffset; /* off of inode in buffer */
} xfs_inode_log_format_t;
typedef struct xfs_inode_log_format_32 {
- __uint16_t ilf_type; /* inode log item type */
- __uint16_t ilf_size; /* size of this item */
- __uint32_t ilf_fields; /* flags for fields logged */
- __uint16_t ilf_asize; /* size of attr d/ext/root */
- __uint16_t ilf_dsize; /* size of data/ext/root */
- __uint64_t ilf_ino; /* inode number */
+ uint16_t ilf_type; /* inode log item type */
+ uint16_t ilf_size; /* size of this item */
+ uint32_t ilf_fields; /* flags for fields logged */
+ uint16_t ilf_asize; /* size of attr d/ext/root */
+ uint16_t ilf_dsize; /* size of data/ext/root */
+ uint64_t ilf_ino; /* inode number */
union {
- __uint32_t ilfu_rdev; /* rdev value for dev inode*/
+ uint32_t ilfu_rdev; /* rdev value for dev inode*/
uuid_t ilfu_uuid; /* mount point value */
} ilf_u;
- __int64_t ilf_blkno; /* blkno of inode buffer */
- __int32_t ilf_len; /* len of inode buffer */
- __int32_t ilf_boffset; /* off of inode in buffer */
+ int64_t ilf_blkno; /* blkno of inode buffer */
+ int32_t ilf_len; /* len of inode buffer */
+ int32_t ilf_boffset; /* off of inode in buffer */
} __attribute__((packed)) xfs_inode_log_format_32_t;
typedef struct xfs_inode_log_format_64 {
- __uint16_t ilf_type; /* inode log item type */
- __uint16_t ilf_size; /* size of this item */
- __uint32_t ilf_fields; /* flags for fields logged */
- __uint16_t ilf_asize; /* size of attr d/ext/root */
- __uint16_t ilf_dsize; /* size of data/ext/root */
- __uint32_t ilf_pad; /* pad for 64 bit boundary */
- __uint64_t ilf_ino; /* inode number */
+ uint16_t ilf_type; /* inode log item type */
+ uint16_t ilf_size; /* size of this item */
+ uint32_t ilf_fields; /* flags for fields logged */
+ uint16_t ilf_asize; /* size of attr d/ext/root */
+ uint16_t ilf_dsize; /* size of data/ext/root */
+ uint32_t ilf_pad; /* pad for 64 bit boundary */
+ uint64_t ilf_ino; /* inode number */
union {
- __uint32_t ilfu_rdev; /* rdev value for dev inode*/
+ uint32_t ilfu_rdev; /* rdev value for dev inode*/
uuid_t ilfu_uuid; /* mount point value */
} ilf_u;
- __int64_t ilf_blkno; /* blkno of inode buffer */
- __int32_t ilf_len; /* len of inode buffer */
- __int32_t ilf_boffset; /* off of inode in buffer */
+ int64_t ilf_blkno; /* blkno of inode buffer */
+ int32_t ilf_len; /* len of inode buffer */
+ int32_t ilf_boffset; /* off of inode in buffer */
} xfs_inode_log_format_64_t;
* information.
*/
typedef struct xfs_ictimestamp {
- __int32_t t_sec; /* timestamp seconds */
- __int32_t t_nsec; /* timestamp nanoseconds */
+ int32_t t_sec; /* timestamp seconds */
+ int32_t t_nsec; /* timestamp nanoseconds */
} xfs_ictimestamp_t;
/*
* kept identical to struct xfs_dinode except for the endianness annotations.
*/
struct xfs_log_dinode {
- __uint16_t di_magic; /* inode magic # = XFS_DINODE_MAGIC */
- __uint16_t di_mode; /* mode and type of file */
- __int8_t di_version; /* inode version */
- __int8_t di_format; /* format of di_c data */
- __uint8_t di_pad3[2]; /* unused in v2/3 inodes */
- __uint32_t di_uid; /* owner's user id */
- __uint32_t di_gid; /* owner's group id */
- __uint32_t di_nlink; /* number of links to file */
- __uint16_t di_projid_lo; /* lower part of owner's project id */
- __uint16_t di_projid_hi; /* higher part of owner's project id */
- __uint8_t di_pad[6]; /* unused, zeroed space */
- __uint16_t di_flushiter; /* incremented on flush */
+ uint16_t di_magic; /* inode magic # = XFS_DINODE_MAGIC */
+ uint16_t di_mode; /* mode and type of file */
+ int8_t di_version; /* inode version */
+ int8_t di_format; /* format of di_c data */
+ uint8_t di_pad3[2]; /* unused in v2/3 inodes */
+ uint32_t di_uid; /* owner's user id */
+ uint32_t di_gid; /* owner's group id */
+ uint32_t di_nlink; /* number of links to file */
+ uint16_t di_projid_lo; /* lower part of owner's project id */
+ uint16_t di_projid_hi; /* higher part of owner's project id */
+ uint8_t di_pad[6]; /* unused, zeroed space */
+ uint16_t di_flushiter; /* incremented on flush */
xfs_ictimestamp_t di_atime; /* time last accessed */
xfs_ictimestamp_t di_mtime; /* time last modified */
xfs_ictimestamp_t di_ctime; /* time created/inode modified */
xfs_extlen_t di_extsize; /* basic/minimum extent size for file */
xfs_extnum_t di_nextents; /* number of extents in data fork */
xfs_aextnum_t di_anextents; /* number of extents in attribute fork*/
- __uint8_t di_forkoff; /* attr fork offs, <<3 for 64b align */
- __int8_t di_aformat; /* format of attr fork's data */
- __uint32_t di_dmevmask; /* DMIG event mask */
- __uint16_t di_dmstate; /* DMIG state info */
- __uint16_t di_flags; /* random flags, XFS_DIFLAG_... */
- __uint32_t di_gen; /* generation number */
+ uint8_t di_forkoff; /* attr fork offs, <<3 for 64b align */
+ int8_t di_aformat; /* format of attr fork's data */
+ uint32_t di_dmevmask; /* DMIG event mask */
+ uint16_t di_dmstate; /* DMIG state info */
+ uint16_t di_flags; /* random flags, XFS_DIFLAG_... */
+ uint32_t di_gen; /* generation number */
/* di_next_unlinked is the only non-core field in the old dinode */
xfs_agino_t di_next_unlinked;/* agi unlinked list ptr */
/* start of the extended dinode, writable fields */
- __uint32_t di_crc; /* CRC of the inode */
- __uint64_t di_changecount; /* number of attribute changes */
+ uint32_t di_crc; /* CRC of the inode */
+ uint64_t di_changecount; /* number of attribute changes */
xfs_lsn_t di_lsn; /* flush sequence */
- __uint64_t di_flags2; /* more random flags */
- __uint32_t di_cowextsize; /* basic cow extent size for file */
- __uint8_t di_pad2[12]; /* more padding for future expansion */
+ uint64_t di_flags2; /* more random flags */
+ uint32_t di_cowextsize; /* basic cow extent size for file */
+ uint8_t di_pad2[12]; /* more padding for future expansion */
/* fields only written to during inode creation */
xfs_ictimestamp_t di_crtime; /* time created */
unsigned short blf_size; /* size of this item */
unsigned short blf_flags; /* misc state */
unsigned short blf_len; /* number of blocks in this buf */
- __int64_t blf_blkno; /* starting blkno of this buf */
+ int64_t blf_blkno; /* starting blkno of this buf */
unsigned int blf_map_size; /* used size of data bitmap in words */
unsigned int blf_data_map[XFS_BLF_DATAMAP_SIZE]; /* dirty bitmap */
} xfs_buf_log_format_t;
blf->blf_flags |= ((type << XFS_BLFT_SHIFT) & XFS_BLFT_MASK);
}
-static inline __uint16_t
+static inline uint16_t
xfs_blft_from_flags(struct xfs_buf_log_format *blf)
{
return (blf->blf_flags & XFS_BLFT_MASK) >> XFS_BLFT_SHIFT;
* conversion routine.
*/
typedef struct xfs_extent_32 {
- __uint64_t ext_start;
- __uint32_t ext_len;
+ uint64_t ext_start;
+ uint32_t ext_len;
} __attribute__((packed)) xfs_extent_32_t;
typedef struct xfs_extent_64 {
- __uint64_t ext_start;
- __uint32_t ext_len;
- __uint32_t ext_pad;
+ uint64_t ext_start;
+ uint32_t ext_len;
+ uint32_t ext_pad;
} xfs_extent_64_t;
/*
* size is given by efi_nextents.
*/
typedef struct xfs_efi_log_format {
- __uint16_t efi_type; /* efi log item type */
- __uint16_t efi_size; /* size of this item */
- __uint32_t efi_nextents; /* # extents to free */
- __uint64_t efi_id; /* efi identifier */
+ uint16_t efi_type; /* efi log item type */
+ uint16_t efi_size; /* size of this item */
+ uint32_t efi_nextents; /* # extents to free */
+ uint64_t efi_id; /* efi identifier */
xfs_extent_t efi_extents[1]; /* array of extents to free */
} xfs_efi_log_format_t;
typedef struct xfs_efi_log_format_32 {
- __uint16_t efi_type; /* efi log item type */
- __uint16_t efi_size; /* size of this item */
- __uint32_t efi_nextents; /* # extents to free */
- __uint64_t efi_id; /* efi identifier */
+ uint16_t efi_type; /* efi log item type */
+ uint16_t efi_size; /* size of this item */
+ uint32_t efi_nextents; /* # extents to free */
+ uint64_t efi_id; /* efi identifier */
xfs_extent_32_t efi_extents[1]; /* array of extents to free */
} __attribute__((packed)) xfs_efi_log_format_32_t;
typedef struct xfs_efi_log_format_64 {
- __uint16_t efi_type; /* efi log item type */
- __uint16_t efi_size; /* size of this item */
- __uint32_t efi_nextents; /* # extents to free */
- __uint64_t efi_id; /* efi identifier */
+ uint16_t efi_type; /* efi log item type */
+ uint16_t efi_size; /* size of this item */
+ uint32_t efi_nextents; /* # extents to free */
+ uint64_t efi_id; /* efi identifier */
xfs_extent_64_t efi_extents[1]; /* array of extents to free */
} xfs_efi_log_format_64_t;
* size is given by efd_nextents;
*/
typedef struct xfs_efd_log_format {
- __uint16_t efd_type; /* efd log item type */
- __uint16_t efd_size; /* size of this item */
- __uint32_t efd_nextents; /* # of extents freed */
- __uint64_t efd_efi_id; /* id of corresponding efi */
+ uint16_t efd_type; /* efd log item type */
+ uint16_t efd_size; /* size of this item */
+ uint32_t efd_nextents; /* # of extents freed */
+ uint64_t efd_efi_id; /* id of corresponding efi */
xfs_extent_t efd_extents[1]; /* array of extents freed */
} xfs_efd_log_format_t;
typedef struct xfs_efd_log_format_32 {
- __uint16_t efd_type; /* efd log item type */
- __uint16_t efd_size; /* size of this item */
- __uint32_t efd_nextents; /* # of extents freed */
- __uint64_t efd_efi_id; /* id of corresponding efi */
+ uint16_t efd_type; /* efd log item type */
+ uint16_t efd_size; /* size of this item */
+ uint32_t efd_nextents; /* # of extents freed */
+ uint64_t efd_efi_id; /* id of corresponding efi */
xfs_extent_32_t efd_extents[1]; /* array of extents freed */
} __attribute__((packed)) xfs_efd_log_format_32_t;
typedef struct xfs_efd_log_format_64 {
- __uint16_t efd_type; /* efd log item type */
- __uint16_t efd_size; /* size of this item */
- __uint32_t efd_nextents; /* # of extents freed */
- __uint64_t efd_efi_id; /* id of corresponding efi */
+ uint16_t efd_type; /* efd log item type */
+ uint16_t efd_size; /* size of this item */
+ uint32_t efd_nextents; /* # of extents freed */
+ uint64_t efd_efi_id; /* id of corresponding efi */
xfs_extent_64_t efd_extents[1]; /* array of extents freed */
} xfs_efd_log_format_64_t;
* RUI/RUD (reverse mapping) log format definitions
*/
struct xfs_map_extent {
- __uint64_t me_owner;
- __uint64_t me_startblock;
- __uint64_t me_startoff;
- __uint32_t me_len;
- __uint32_t me_flags;
+ uint64_t me_owner;
+ uint64_t me_startblock;
+ uint64_t me_startoff;
+ uint32_t me_len;
+ uint32_t me_flags;
};
/* rmap me_flags: upper bits are flags, lower byte is type code */
* size is given by rui_nextents.
*/
struct xfs_rui_log_format {
- __uint16_t rui_type; /* rui log item type */
- __uint16_t rui_size; /* size of this item */
- __uint32_t rui_nextents; /* # extents to free */
- __uint64_t rui_id; /* rui identifier */
+ uint16_t rui_type; /* rui log item type */
+ uint16_t rui_size; /* size of this item */
+ uint32_t rui_nextents; /* # extents to free */
+ uint64_t rui_id; /* rui identifier */
struct xfs_map_extent rui_extents[]; /* array of extents to rmap */
};
* size is given by rud_nextents;
*/
struct xfs_rud_log_format {
- __uint16_t rud_type; /* rud log item type */
- __uint16_t rud_size; /* size of this item */
- __uint32_t __pad;
- __uint64_t rud_rui_id; /* id of corresponding rui */
+ uint16_t rud_type; /* rud log item type */
+ uint16_t rud_size; /* size of this item */
+ uint32_t __pad;
+ uint64_t rud_rui_id; /* id of corresponding rui */
};
/*
* CUI/CUD (refcount update) log format definitions
*/
struct xfs_phys_extent {
- __uint64_t pe_startblock;
- __uint32_t pe_len;
- __uint32_t pe_flags;
+ uint64_t pe_startblock;
+ uint32_t pe_len;
+ uint32_t pe_flags;
};
/* refcount pe_flags: upper bits are flags, lower byte is type code */
* size is given by cui_nextents.
*/
struct xfs_cui_log_format {
- __uint16_t cui_type; /* cui log item type */
- __uint16_t cui_size; /* size of this item */
- __uint32_t cui_nextents; /* # extents to free */
- __uint64_t cui_id; /* cui identifier */
+ uint16_t cui_type; /* cui log item type */
+ uint16_t cui_size; /* size of this item */
+ uint32_t cui_nextents; /* # extents to free */
+ uint64_t cui_id; /* cui identifier */
struct xfs_phys_extent cui_extents[]; /* array of extents */
};
* size is given by cud_nextents;
*/
struct xfs_cud_log_format {
- __uint16_t cud_type; /* cud log item type */
- __uint16_t cud_size; /* size of this item */
- __uint32_t __pad;
- __uint64_t cud_cui_id; /* id of corresponding cui */
+ uint16_t cud_type; /* cud log item type */
+ uint16_t cud_size; /* size of this item */
+ uint32_t __pad;
+ uint64_t cud_cui_id; /* id of corresponding cui */
};
/*
* size is given by bui_nextents.
*/
struct xfs_bui_log_format {
- __uint16_t bui_type; /* bui log item type */
- __uint16_t bui_size; /* size of this item */
- __uint32_t bui_nextents; /* # extents to free */
- __uint64_t bui_id; /* bui identifier */
+ uint16_t bui_type; /* bui log item type */
+ uint16_t bui_size; /* size of this item */
+ uint32_t bui_nextents; /* # extents to free */
+ uint64_t bui_id; /* bui identifier */
struct xfs_map_extent bui_extents[]; /* array of extents to bmap */
};
* size is given by bud_nextents;
*/
struct xfs_bud_log_format {
- __uint16_t bud_type; /* bud log item type */
- __uint16_t bud_size; /* size of this item */
- __uint32_t __pad;
- __uint64_t bud_bui_id; /* id of corresponding bui */
+ uint16_t bud_type; /* bud log item type */
+ uint16_t bud_size; /* size of this item */
+ uint32_t __pad;
+ uint64_t bud_bui_id; /* id of corresponding bui */
};
/*
* 32 bits : log_recovery code assumes that.
*/
typedef struct xfs_dq_logformat {
- __uint16_t qlf_type; /* dquot log item type */
- __uint16_t qlf_size; /* size of this item */
+ uint16_t qlf_type; /* dquot log item type */
+ uint16_t qlf_size; /* size of this item */
xfs_dqid_t qlf_id; /* usr/grp/proj id : 32 bits */
- __int64_t qlf_blkno; /* blkno of dquot buffer */
- __int32_t qlf_len; /* len of dquot buffer */
- __uint32_t qlf_boffset; /* off of dquot in buffer */
+ int64_t qlf_blkno; /* blkno of dquot buffer */
+ int32_t qlf_len; /* len of dquot buffer */
+ uint32_t qlf_boffset; /* off of dquot in buffer */
} xfs_dq_logformat_t;
/*
* decoding can be done correctly.
*/
struct xfs_icreate_log {
- __uint16_t icl_type; /* type of log format structure */
- __uint16_t icl_size; /* size of log format structure */
+ uint16_t icl_type; /* type of log format structure */
+ uint16_t icl_size; /* size of log format structure */
__be32 icl_ag; /* ag being allocated in */
__be32 icl_agbno; /* start block of inode range */
__be32 icl_count; /* number of inodes to initialise */
#define XLOG_RHASH_SIZE 16
#define XLOG_RHASH_SHIFT 2
#define XLOG_RHASH(tid) \
- ((((__uint32_t)tid)>>XLOG_RHASH_SHIFT) & (XLOG_RHASH_SIZE-1))
+ ((((uint32_t)tid)>>XLOG_RHASH_SHIFT) & (XLOG_RHASH_SIZE-1))
#define XLOG_MAX_REGIONS_IN_ITEM (XFS_MAX_BLOCKSIZE / XFS_BLF_CHUNK / 2 + 1)
* they may need 64-bit accounting. Hence, 64-bit quota-counters,
* and quota-limits. This is a waste in the common case, but hey ...
*/
-typedef __uint64_t xfs_qcnt_t;
-typedef __uint16_t xfs_qwarncnt_t;
+typedef uint64_t xfs_qcnt_t;
+typedef uint16_t xfs_qwarncnt_t;
/*
* flags for q_flags field in the dquot.
*/
#define XFS_QMOPT_INHERIT 0x1000000
+#define XFS_QMOPT_NOLOCK 0x2000000 /* don't ilock during dqget */
+
/*
* flags to xfs_trans_mod_dquot.
*/
}
/*
- * While we're adjusting the refcounts records of an extent, we have
- * to keep an eye on the number of extents we're dirtying -- run too
- * many in a single transaction and we'll exceed the transaction's
- * reservation and crash the fs. Each record adds 12 bytes to the
- * log (plus any key updates) so we'll conservatively assume 24 bytes
- * per record. We must also leave space for btree splits on both ends
- * of the range and space for the CUD and a new CUI.
- *
* XXX: This is a pretty hand-wavy estimate. The penalty for guessing
* true incorrectly is a shutdown FS; the penalty for guessing false
* incorrectly is more transaction rolls than might be necessary.
*/
if (cur->bc_private.a.priv.refc.nr_ops > 2 &&
XFS_TEST_ERROR(false, cur->bc_mp,
- XFS_ERRTAG_REFCOUNT_CONTINUE_UPDATE,
- XFS_RANDOM_REFCOUNT_CONTINUE_UPDATE))
+ XFS_ERRTAG_REFCOUNT_CONTINUE_UPDATE))
return false;
if (cur->bc_private.a.priv.refc.nr_ops == 0)
else if (overhead > cur->bc_tp->t_log_res)
return false;
return cur->bc_tp->t_log_res - overhead >
- cur->bc_private.a.priv.refc.nr_ops * 32;
+ cur->bc_private.a.priv.refc.nr_ops * XFS_REFCOUNT_ITEM_OVERHEAD;
}
/*
blockcount);
if (XFS_TEST_ERROR(false, mp,
- XFS_ERRTAG_REFCOUNT_FINISH_ONE,
- XFS_RANDOM_REFCOUNT_FINISH_ONE))
+ XFS_ERRTAG_REFCOUNT_FINISH_ONE))
return -EIO;
/*
extern int xfs_refcount_recover_cow_leftovers(struct xfs_mount *mp,
xfs_agnumber_t agno);
+/*
+ * While we're adjusting the refcounts records of an extent, we have
+ * to keep an eye on the number of extents we're dirtying -- run too
+ * many in a single transaction and we'll exceed the transaction's
+ * reservation and crash the fs. Each record adds 12 bytes to the
+ * log (plus any key updates) so we'll conservatively assume 32 bytes
+ * per record. We must also leave space for btree splits on both ends
+ * of the range and space for the CUD and a new CUI.
+ */
+#define XFS_REFCOUNT_ITEM_OVERHEAD 32
+
+static inline xfs_fileoff_t xfs_refcount_max_unmap(int log_res)
+{
+ return (log_res * 3 / 4) / XFS_REFCOUNT_ITEM_OVERHEAD;
+}
+
#endif /* __XFS_REFCOUNT_H__ */
ptr->s = agf->agf_refcount_root;
}
-STATIC __int64_t
+STATIC int64_t
xfs_refcountbt_key_diff(
struct xfs_btree_cur *cur,
union xfs_btree_key *key)
struct xfs_refcount_irec *rec = &cur->bc_rec.rc;
struct xfs_refcount_key *kp = &key->refc;
- return (__int64_t)be32_to_cpu(kp->rc_startblock) - rec->rc_startblock;
+ return (int64_t)be32_to_cpu(kp->rc_startblock) - rec->rc_startblock;
}
-STATIC __int64_t
+STATIC int64_t
xfs_refcountbt_diff_two_keys(
struct xfs_btree_cur *cur,
union xfs_btree_key *k1,
union xfs_btree_key *k2)
{
- return (__int64_t)be32_to_cpu(k1->refc.rc_startblock) -
+ return (int64_t)be32_to_cpu(k1->refc.rc_startblock) -
be32_to_cpu(k2->refc.rc_startblock);
}
.verify_write = xfs_refcountbt_write_verify,
};
-#if defined(DEBUG) || defined(XFS_WARN)
STATIC int
xfs_refcountbt_keys_inorder(
struct xfs_btree_cur *cur,
be32_to_cpu(r1->refc.rc_blockcount) <=
be32_to_cpu(r2->refc.rc_startblock);
}
-#endif
static const struct xfs_btree_ops xfs_refcountbt_ops = {
.rec_len = sizeof(struct xfs_refcount_rec),
.key_diff = xfs_refcountbt_key_diff,
.buf_ops = &xfs_refcountbt_buf_ops,
.diff_two_keys = xfs_refcountbt_diff_two_keys,
-#if defined(DEBUG) || defined(XFS_WARN)
.keys_inorder = xfs_refcountbt_keys_inorder,
.recs_inorder = xfs_refcountbt_recs_inorder,
-#endif
};
/*
return error;
}
-static int
+/* Convert an internal btree record to an rmap record. */
+int
xfs_rmap_btrec_to_irec(
union xfs_btree_rec *rec,
struct xfs_rmap_irec *irec)
xfs_rmap_finish_one(
struct xfs_trans *tp,
enum xfs_rmap_intent_type type,
- __uint64_t owner,
+ uint64_t owner,
int whichfork,
xfs_fileoff_t startoff,
xfs_fsblock_t startblock,
startoff, blockcount, state);
if (XFS_TEST_ERROR(false, mp,
- XFS_ERRTAG_RMAP_FINISH_ONE,
- XFS_RANDOM_RMAP_FINISH_ONE))
+ XFS_ERRTAG_RMAP_FINISH_ONE))
return -EIO;
/*
struct xfs_mount *mp,
struct xfs_defer_ops *dfops,
enum xfs_rmap_intent_type type,
- __uint64_t owner,
+ uint64_t owner,
int whichfork,
struct xfs_bmbt_irec *bmap)
{
xfs_agnumber_t agno,
xfs_agblock_t bno,
xfs_extlen_t len,
- __uint64_t owner)
+ uint64_t owner)
{
struct xfs_bmbt_irec bmap;
xfs_agnumber_t agno,
xfs_agblock_t bno,
xfs_extlen_t len,
- __uint64_t owner)
+ uint64_t owner)
{
struct xfs_bmbt_irec bmap;
struct xfs_rmap_intent {
struct list_head ri_list;
enum xfs_rmap_intent_type ri_type;
- __uint64_t ri_owner;
+ uint64_t ri_owner;
int ri_whichfork;
struct xfs_bmbt_irec ri_bmap;
};
struct xfs_bmbt_irec *imap);
int xfs_rmap_alloc_extent(struct xfs_mount *mp, struct xfs_defer_ops *dfops,
xfs_agnumber_t agno, xfs_agblock_t bno, xfs_extlen_t len,
- __uint64_t owner);
+ uint64_t owner);
int xfs_rmap_free_extent(struct xfs_mount *mp, struct xfs_defer_ops *dfops,
xfs_agnumber_t agno, xfs_agblock_t bno, xfs_extlen_t len,
- __uint64_t owner);
+ uint64_t owner);
void xfs_rmap_finish_one_cleanup(struct xfs_trans *tp,
struct xfs_btree_cur *rcur, int error);
int xfs_rmap_finish_one(struct xfs_trans *tp, enum xfs_rmap_intent_type type,
- __uint64_t owner, int whichfork, xfs_fileoff_t startoff,
+ uint64_t owner, int whichfork, xfs_fileoff_t startoff,
xfs_fsblock_t startblock, xfs_filblks_t blockcount,
xfs_exntst_t state, struct xfs_btree_cur **pcur);
struct xfs_rmap_irec *irec, int *stat);
int xfs_rmap_compare(const struct xfs_rmap_irec *a,
const struct xfs_rmap_irec *b);
+union xfs_btree_rec;
+int xfs_rmap_btrec_to_irec(union xfs_btree_rec *rec,
+ struct xfs_rmap_irec *irec);
#endif /* __XFS_RMAP_H__ */
union xfs_btree_key *key,
union xfs_btree_rec *rec)
{
- __uint64_t off;
+ uint64_t off;
int adj;
adj = be32_to_cpu(rec->rmap.rm_blockcount) - 1;
ptr->s = agf->agf_roots[cur->bc_btnum];
}
-STATIC __int64_t
+STATIC int64_t
xfs_rmapbt_key_diff(
struct xfs_btree_cur *cur,
union xfs_btree_key *key)
struct xfs_rmap_irec *rec = &cur->bc_rec.r;
struct xfs_rmap_key *kp = &key->rmap;
__u64 x, y;
- __int64_t d;
+ int64_t d;
- d = (__int64_t)be32_to_cpu(kp->rm_startblock) - rec->rm_startblock;
+ d = (int64_t)be32_to_cpu(kp->rm_startblock) - rec->rm_startblock;
if (d)
return d;
return 0;
}
-STATIC __int64_t
+STATIC int64_t
xfs_rmapbt_diff_two_keys(
struct xfs_btree_cur *cur,
union xfs_btree_key *k1,
{
struct xfs_rmap_key *kp1 = &k1->rmap;
struct xfs_rmap_key *kp2 = &k2->rmap;
- __int64_t d;
+ int64_t d;
__u64 x, y;
- d = (__int64_t)be32_to_cpu(kp1->rm_startblock) -
+ d = (int64_t)be32_to_cpu(kp1->rm_startblock) -
be32_to_cpu(kp2->rm_startblock);
if (d)
return d;
.verify_write = xfs_rmapbt_write_verify,
};
-#if defined(DEBUG) || defined(XFS_WARN)
STATIC int
xfs_rmapbt_keys_inorder(
struct xfs_btree_cur *cur,
union xfs_btree_key *k1,
union xfs_btree_key *k2)
{
- __uint32_t x;
- __uint32_t y;
- __uint64_t a;
- __uint64_t b;
+ uint32_t x;
+ uint32_t y;
+ uint64_t a;
+ uint64_t b;
x = be32_to_cpu(k1->rmap.rm_startblock);
y = be32_to_cpu(k2->rmap.rm_startblock);
union xfs_btree_rec *r1,
union xfs_btree_rec *r2)
{
- __uint32_t x;
- __uint32_t y;
- __uint64_t a;
- __uint64_t b;
+ uint32_t x;
+ uint32_t y;
+ uint64_t a;
+ uint64_t b;
x = be32_to_cpu(r1->rmap.rm_startblock);
y = be32_to_cpu(r2->rmap.rm_startblock);
return 1;
return 0;
}
-#endif /* DEBUG */
static const struct xfs_btree_ops xfs_rmapbt_ops = {
.rec_len = sizeof(struct xfs_rmap_rec),
.key_diff = xfs_rmapbt_key_diff,
.buf_ops = &xfs_rmapbt_buf_ops,
.diff_two_keys = xfs_rmapbt_diff_two_keys,
-#if defined(DEBUG) || defined(XFS_WARN)
.keys_inorder = xfs_rmapbt_keys_inorder,
.recs_inorder = xfs_rmapbt_recs_inorder,
-#endif
};
/*
* Get a buffer for the bitmap or summary file block specified.
* The buffer is returned read and locked.
*/
-static int
+int
xfs_rtbuf_get(
xfs_mount_t *mp, /* file system mount structure */
xfs_trans_t *tp, /* transaction pointer */
mp->m_sb.sb_rextents) {
if (!(mp->m_rbmip->i_d.di_flags & XFS_DIFLAG_NEWRTBM))
mp->m_rbmip->i_d.di_flags |= XFS_DIFLAG_NEWRTBM;
- *(__uint64_t *)&VFS_I(mp->m_rbmip)->i_atime = 0;
+ *(uint64_t *)&VFS_I(mp->m_rbmip)->i_atime = 0;
xfs_trans_log_inode(tp, mp->m_rbmip, XFS_ILOG_CORE);
}
return 0;
struct xfs_dsb *to,
struct xfs_sb *from)
{
- __uint16_t qflags = from->sb_qflags;
+ uint16_t qflags = from->sb_qflags;
to->sb_uquotino = cpu_to_be64(from->sb_uquotino);
if (xfs_sb_version_has_pquotino(from)) {
mp->m_refc_mnr[1] = mp->m_refc_mxr[1] / 2;
mp->m_bsize = XFS_FSB_TO_BB(mp, 1);
- mp->m_ialloc_inos = (int)MAX((__uint16_t)XFS_INODES_PER_CHUNK,
+ mp->m_ialloc_inos = (int)MAX((uint16_t)XFS_INODES_PER_CHUNK,
sbp->sb_inopblock);
mp->m_ialloc_blks = mp->m_ialloc_inos >> sbp->sb_inopblog;
if (bp->b_bn != be64_to_cpu(dsl->sl_blkno))
return false;
if (be32_to_cpu(dsl->sl_offset) +
- be32_to_cpu(dsl->sl_bytes) >= MAXPATHLEN)
+ be32_to_cpu(dsl->sl_bytes) >= XFS_SYMLINK_MAXLEN)
return false;
if (dsl->sl_owner == 0)
return false;
/*
* Making a new symplink is the same as creating a new file, but
* with the added blocks for remote symlink data which can be up to 1kB in
- * length (MAXPATHLEN).
+ * length (XFS_SYMLINK_MAXLEN).
*/
STATIC uint
xfs_calc_symlink_reservation(
struct xfs_mount *mp)
{
return xfs_calc_create_reservation(mp) +
- xfs_calc_buf_res(1, MAXPATHLEN);
+ xfs_calc_buf_res(1, XFS_SYMLINK_MAXLEN);
}
/*
#ifndef __XFS_TYPES_H__
#define __XFS_TYPES_H__
-typedef __uint32_t prid_t; /* project ID */
+typedef uint32_t prid_t; /* project ID */
-typedef __uint32_t xfs_agblock_t; /* blockno in alloc. group */
-typedef __uint32_t xfs_agino_t; /* inode # within allocation grp */
-typedef __uint32_t xfs_extlen_t; /* extent length in blocks */
-typedef __uint32_t xfs_agnumber_t; /* allocation group number */
-typedef __int32_t xfs_extnum_t; /* # of extents in a file */
-typedef __int16_t xfs_aextnum_t; /* # extents in an attribute fork */
-typedef __int64_t xfs_fsize_t; /* bytes in a file */
-typedef __uint64_t xfs_ufsize_t; /* unsigned bytes in a file */
+typedef uint32_t xfs_agblock_t; /* blockno in alloc. group */
+typedef uint32_t xfs_agino_t; /* inode # within allocation grp */
+typedef uint32_t xfs_extlen_t; /* extent length in blocks */
+typedef uint32_t xfs_agnumber_t; /* allocation group number */
+typedef int32_t xfs_extnum_t; /* # of extents in a file */
+typedef int16_t xfs_aextnum_t; /* # extents in an attribute fork */
+typedef int64_t xfs_fsize_t; /* bytes in a file */
+typedef uint64_t xfs_ufsize_t; /* unsigned bytes in a file */
-typedef __int32_t xfs_suminfo_t; /* type of bitmap summary info */
-typedef __int32_t xfs_rtword_t; /* word type for bitmap manipulations */
+typedef int32_t xfs_suminfo_t; /* type of bitmap summary info */
+typedef int32_t xfs_rtword_t; /* word type for bitmap manipulations */
-typedef __int64_t xfs_lsn_t; /* log sequence number */
-typedef __int32_t xfs_tid_t; /* transaction identifier */
+typedef int64_t xfs_lsn_t; /* log sequence number */
+typedef int32_t xfs_tid_t; /* transaction identifier */
-typedef __uint32_t xfs_dablk_t; /* dir/attr block number (in file) */
-typedef __uint32_t xfs_dahash_t; /* dir/attr hash value */
+typedef uint32_t xfs_dablk_t; /* dir/attr block number (in file) */
+typedef uint32_t xfs_dahash_t; /* dir/attr hash value */
-typedef __uint64_t xfs_fsblock_t; /* blockno in filesystem (agno|agbno) */
-typedef __uint64_t xfs_rfsblock_t; /* blockno in filesystem (raw) */
-typedef __uint64_t xfs_rtblock_t; /* extent (block) in realtime area */
-typedef __uint64_t xfs_fileoff_t; /* block number in a file */
-typedef __uint64_t xfs_filblks_t; /* number of blocks in a file */
+typedef uint64_t xfs_fsblock_t; /* blockno in filesystem (agno|agbno) */
+typedef uint64_t xfs_rfsblock_t; /* blockno in filesystem (raw) */
+typedef uint64_t xfs_rtblock_t; /* extent (block) in realtime area */
+typedef uint64_t xfs_fileoff_t; /* block number in a file */
+typedef uint64_t xfs_filblks_t; /* number of blocks in a file */
-typedef __int64_t xfs_srtblock_t; /* signed version of xfs_rtblock_t */
-typedef __int64_t xfs_sfiloff_t; /* signed block number in a file */
+typedef int64_t xfs_srtblock_t; /* signed version of xfs_rtblock_t */
+typedef int64_t xfs_sfiloff_t; /* signed block number in a file */
/*
* Null values for the types.
* uid_t and gid_t are hard-coded to 32 bits in the inode.
* Hence, an 'id' in a dquot is 32 bits..
*/
-typedef __uint32_t xfs_dqid_t;
+typedef uint32_t xfs_dqid_t;
/*
* Constants for bit manipulations.
#define XFS_BUF_LOCK_TRACKING 1
#endif
+#ifdef CONFIG_XFS_ASSERT_FATAL
+#define XFS_ASSERT_FATAL 1
+#endif
+
#ifdef CONFIG_XFS_WARN
#define XFS_WARN 1
#endif
return acl;
}
-STATIC int
-__xfs_set_acl(struct inode *inode, int type, struct posix_acl *acl)
+int
+__xfs_set_acl(struct inode *inode, struct posix_acl *acl, int type)
{
struct xfs_inode *ip = XFS_I(inode);
unsigned char *ea_name;
}
set_acl:
- return __xfs_set_acl(inode, type, acl);
+ return __xfs_set_acl(inode, acl, type);
}
#ifdef CONFIG_XFS_POSIX_ACL
extern struct posix_acl *xfs_get_acl(struct inode *inode, int type);
extern int xfs_set_acl(struct inode *inode, struct posix_acl *acl, int type);
+extern int __xfs_set_acl(struct inode *inode, struct posix_acl *acl, int type);
#else
static inline struct posix_acl *xfs_get_acl(struct inode *inode, int type)
{
struct inode *inode,
struct page *page,
loff_t offset,
- __uint64_t end_offset)
+ uint64_t end_offset)
{
LIST_HEAD(submit_list);
struct xfs_ioend *ioend, *next;
struct xfs_writepage_ctx *wpc = data;
struct inode *inode = page->mapping->host;
loff_t offset;
- __uint64_t end_offset;
+ uint64_t end_offset;
pgoff_t end_index;
trace_xfs_writepage(inode, page, 0, 0);
unsigned char *, int, int);
typedef struct xfs_attr_list_context {
+ struct xfs_trans *tp;
struct xfs_inode *dp; /* inode */
struct attrlist_cursor_kern *cursor; /* position in list */
char *alist; /* output buffer */
* Overall external interface routines.
*/
int xfs_attr_inactive(struct xfs_inode *dp);
+int xfs_attr_list_int_ilocked(struct xfs_attr_list_context *);
int xfs_attr_list_int(struct xfs_attr_list_context *);
int xfs_inode_hasattr(struct xfs_inode *ip);
+int xfs_attr_get_ilocked(struct xfs_inode *ip, struct xfs_da_args *args);
int xfs_attr_get(struct xfs_inode *ip, const unsigned char *name,
unsigned char *value, int *valuelenp, int flags);
int xfs_attr_set(struct xfs_inode *dp, const unsigned char *name,
*/
bp = NULL;
if (cursor->blkno > 0) {
- error = xfs_da3_node_read(NULL, dp, cursor->blkno, -1,
+ error = xfs_da3_node_read(context->tp, dp, cursor->blkno, -1,
&bp, XFS_ATTR_FORK);
if ((error != 0) && (error != -EFSCORRUPTED))
return error;
case XFS_DA_NODE_MAGIC:
case XFS_DA3_NODE_MAGIC:
trace_xfs_attr_list_wrong_blk(context);
- xfs_trans_brelse(NULL, bp);
+ xfs_trans_brelse(context->tp, bp);
bp = NULL;
break;
case XFS_ATTR_LEAF_MAGIC:
if (cursor->hashval > be32_to_cpu(
entries[leafhdr.count - 1].hashval)) {
trace_xfs_attr_list_wrong_blk(context);
- xfs_trans_brelse(NULL, bp);
+ xfs_trans_brelse(context->tp, bp);
bp = NULL;
} else if (cursor->hashval <= be32_to_cpu(
entries[0].hashval)) {
trace_xfs_attr_list_wrong_blk(context);
- xfs_trans_brelse(NULL, bp);
+ xfs_trans_brelse(context->tp, bp);
bp = NULL;
}
break;
default:
trace_xfs_attr_list_wrong_blk(context);
- xfs_trans_brelse(NULL, bp);
+ xfs_trans_brelse(context->tp, bp);
bp = NULL;
}
}
if (bp == NULL) {
cursor->blkno = 0;
for (;;) {
- __uint16_t magic;
+ uint16_t magic;
- error = xfs_da3_node_read(NULL, dp,
+ error = xfs_da3_node_read(context->tp, dp,
cursor->blkno, -1, &bp,
XFS_ATTR_FORK);
if (error)
XFS_ERRLEVEL_LOW,
context->dp->i_mount,
node);
- xfs_trans_brelse(NULL, bp);
+ xfs_trans_brelse(context->tp, bp);
return -EFSCORRUPTED;
}
}
}
if (i == nodehdr.count) {
- xfs_trans_brelse(NULL, bp);
+ xfs_trans_brelse(context->tp, bp);
return 0;
}
- xfs_trans_brelse(NULL, bp);
+ xfs_trans_brelse(context->tp, bp);
}
}
ASSERT(bp != NULL);
if (context->seen_enough || leafhdr.forw == 0)
break;
cursor->blkno = leafhdr.forw;
- xfs_trans_brelse(NULL, bp);
- error = xfs_attr3_leaf_read(NULL, dp, cursor->blkno, -1, &bp);
+ xfs_trans_brelse(context->tp, bp);
+ error = xfs_attr3_leaf_read(context->tp, dp, cursor->blkno, -1, &bp);
if (error)
return error;
}
- xfs_trans_brelse(NULL, bp);
+ xfs_trans_brelse(context->tp, bp);
return 0;
}
trace_xfs_attr_leaf_list(context);
context->cursor->blkno = 0;
- error = xfs_attr3_leaf_read(NULL, context->dp, 0, -1, &bp);
+ error = xfs_attr3_leaf_read(context->tp, context->dp, 0, -1, &bp);
if (error)
return error;
xfs_attr3_leaf_list_int(bp, context);
- xfs_trans_brelse(NULL, bp);
+ xfs_trans_brelse(context->tp, bp);
return 0;
}
+int
+xfs_attr_list_int_ilocked(
+ struct xfs_attr_list_context *context)
+{
+ struct xfs_inode *dp = context->dp;
+
+ /*
+ * Decide on what work routines to call based on the inode size.
+ */
+ if (!xfs_inode_hasattr(dp))
+ return 0;
+ else if (dp->i_d.di_aformat == XFS_DINODE_FMT_LOCAL)
+ return xfs_attr_shortform_list(context);
+ else if (xfs_bmap_one_block(dp, XFS_ATTR_FORK))
+ return xfs_attr_leaf_list(context);
+ return xfs_attr_node_list(context);
+}
+
int
xfs_attr_list_int(
xfs_attr_list_context_t *context)
if (XFS_FORCED_SHUTDOWN(dp->i_mount))
return -EIO;
- /*
- * Decide on what work routines to call based on the inode size.
- */
lock_mode = xfs_ilock_attr_map_shared(dp);
- if (!xfs_inode_hasattr(dp)) {
- error = 0;
- } else if (dp->i_d.di_aformat == XFS_DINODE_FMT_LOCAL) {
- error = xfs_attr_shortform_list(context);
- } else if (xfs_bmap_one_block(dp, XFS_ATTR_FORK)) {
- error = xfs_attr_leaf_list(context);
- } else {
- error = xfs_attr_node_list(context);
- }
+ error = xfs_attr_list_int_ilocked(context);
xfs_iunlock(dp, lock_mode);
return error;
}
struct xfs_map_extent *bmap;
xfs_fsblock_t startblock_fsb;
xfs_fsblock_t inode_fsb;
+ xfs_filblks_t count;
bool op_ok;
struct xfs_bud_log_item *budp;
enum xfs_bmap_intent_type type;
struct xfs_trans *tp;
struct xfs_inode *ip = NULL;
struct xfs_defer_ops dfops;
+ struct xfs_bmbt_irec irec;
xfs_fsblock_t firstfsb;
ASSERT(!test_bit(XFS_BUI_RECOVERED, &buip->bui_flags));
}
xfs_trans_ijoin(tp, ip, 0);
+ count = bmap->me_len;
error = xfs_trans_log_finish_bmap_update(tp, budp, &dfops, type,
ip, whichfork, bmap->me_startoff,
- bmap->me_startblock, bmap->me_len,
- state);
+ bmap->me_startblock, &count, state);
if (error)
goto err_dfops;
+ if (count > 0) {
+ ASSERT(type == XFS_BMAP_UNMAP);
+ irec.br_startblock = bmap->me_startblock;
+ irec.br_blockcount = count;
+ irec.br_startoff = bmap->me_startoff;
+ irec.br_state = state;
+ error = xfs_bmap_unmap_extent(tp->t_mountp, &dfops, ip, &irec);
+ if (error)
+ goto err_dfops;
+ }
+
/* Finish transaction, free inodes. */
error = xfs_defer_finish(&tp, &dfops, NULL);
if (error)
*/
/*
- * Count leaf blocks given a range of extent records.
+ * Count leaf blocks given a range of extent records. Delayed allocation
+ * extents are not counted towards the totals.
*/
STATIC void
xfs_bmap_count_leaves(
- xfs_ifork_t *ifp,
- xfs_extnum_t idx,
- int numrecs,
- int *count)
+ struct xfs_ifork *ifp,
+ xfs_extnum_t *numrecs,
+ xfs_filblks_t *count)
{
- int b;
-
- for (b = 0; b < numrecs; b++) {
- xfs_bmbt_rec_host_t *frp = xfs_iext_get_ext(ifp, idx + b);
- *count += xfs_bmbt_get_blockcount(frp);
+ xfs_extnum_t i;
+ xfs_extnum_t nr_exts = xfs_iext_count(ifp);
+
+ for (i = 0; i < nr_exts; i++) {
+ xfs_bmbt_rec_host_t *frp = xfs_iext_get_ext(ifp, i);
+ if (!isnullstartblock(xfs_bmbt_get_startblock(frp))) {
+ (*numrecs)++;
+ *count += xfs_bmbt_get_blockcount(frp);
+ }
}
}
struct xfs_mount *mp,
struct xfs_btree_block *block,
int numrecs,
- int *count)
+ xfs_filblks_t *count)
{
int b;
xfs_bmbt_rec_t *frp;
* Recursively walks each level of a btree
* to count total fsblocks in use.
*/
-STATIC int /* error */
+STATIC int
xfs_bmap_count_tree(
- xfs_mount_t *mp, /* file system mount point */
- xfs_trans_t *tp, /* transaction pointer */
- xfs_ifork_t *ifp, /* inode fork pointer */
- xfs_fsblock_t blockno, /* file system block number */
- int levelin, /* level in btree */
- int *count) /* Count of blocks */
+ struct xfs_mount *mp,
+ struct xfs_trans *tp,
+ struct xfs_ifork *ifp,
+ xfs_fsblock_t blockno,
+ int levelin,
+ xfs_extnum_t *nextents,
+ xfs_filblks_t *count)
{
int error;
- xfs_buf_t *bp, *nbp;
+ struct xfs_buf *bp, *nbp;
int level = levelin;
__be64 *pp;
xfs_fsblock_t bno = blockno;
/* Dive to the next level */
pp = XFS_BMBT_PTR_ADDR(mp, block, 1, mp->m_bmap_dmxr[1]);
bno = be64_to_cpu(*pp);
- if (unlikely((error =
- xfs_bmap_count_tree(mp, tp, ifp, bno, level, count)) < 0)) {
+ error = xfs_bmap_count_tree(mp, tp, ifp, bno, level, nextents,
+ count);
+ if (error) {
xfs_trans_brelse(tp, bp);
XFS_ERROR_REPORT("xfs_bmap_count_tree(1)",
XFS_ERRLEVEL_LOW, mp);
for (;;) {
nextbno = be64_to_cpu(block->bb_u.l.bb_rightsib);
numrecs = be16_to_cpu(block->bb_numrecs);
+ (*nextents) += numrecs;
xfs_bmap_disk_count_leaves(mp, block, numrecs, count);
xfs_trans_brelse(tp, bp);
if (nextbno == NULLFSBLOCK)
}
/*
- * Count fsblocks of the given fork.
+ * Count fsblocks of the given fork. Delayed allocation extents are
+ * not counted towards the totals.
*/
-static int /* error */
+int
xfs_bmap_count_blocks(
- xfs_trans_t *tp, /* transaction pointer */
- xfs_inode_t *ip, /* incore inode */
- int whichfork, /* data or attr fork */
- int *count) /* out: count of blocks */
+ struct xfs_trans *tp,
+ struct xfs_inode *ip,
+ int whichfork,
+ xfs_extnum_t *nextents,
+ xfs_filblks_t *count)
{
+ struct xfs_mount *mp; /* file system mount structure */
+ __be64 *pp; /* pointer to block address */
struct xfs_btree_block *block; /* current btree block */
+ struct xfs_ifork *ifp; /* fork structure */
xfs_fsblock_t bno; /* block # of "block" */
- xfs_ifork_t *ifp; /* fork structure */
int level; /* btree level, for checking */
- xfs_mount_t *mp; /* file system mount structure */
- __be64 *pp; /* pointer to block address */
+ int error;
bno = NULLFSBLOCK;
mp = ip->i_mount;
+ *nextents = 0;
+ *count = 0;
ifp = XFS_IFORK_PTR(ip, whichfork);
- if ( XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_EXTENTS ) {
- xfs_bmap_count_leaves(ifp, 0, xfs_iext_count(ifp), count);
+ if (!ifp)
return 0;
- }
- /*
- * Root level must use BMAP_BROOT_PTR_ADDR macro to get ptr out.
- */
- block = ifp->if_broot;
- level = be16_to_cpu(block->bb_level);
- ASSERT(level > 0);
- pp = XFS_BMAP_BROOT_PTR_ADDR(mp, block, 1, ifp->if_broot_bytes);
- bno = be64_to_cpu(*pp);
- ASSERT(bno != NULLFSBLOCK);
- ASSERT(XFS_FSB_TO_AGNO(mp, bno) < mp->m_sb.sb_agcount);
- ASSERT(XFS_FSB_TO_AGBNO(mp, bno) < mp->m_sb.sb_agblocks);
-
- if (unlikely(xfs_bmap_count_tree(mp, tp, ifp, bno, level, count) < 0)) {
- XFS_ERROR_REPORT("xfs_bmap_count_blocks(2)", XFS_ERRLEVEL_LOW,
- mp);
- return -EFSCORRUPTED;
+ switch (XFS_IFORK_FORMAT(ip, whichfork)) {
+ case XFS_DINODE_FMT_EXTENTS:
+ xfs_bmap_count_leaves(ifp, nextents, count);
+ return 0;
+ case XFS_DINODE_FMT_BTREE:
+ if (!(ifp->if_flags & XFS_IFEXTENTS)) {
+ error = xfs_iread_extents(tp, ip, whichfork);
+ if (error)
+ return error;
+ }
+
+ /*
+ * Root level must use BMAP_BROOT_PTR_ADDR macro to get ptr out.
+ */
+ block = ifp->if_broot;
+ level = be16_to_cpu(block->bb_level);
+ ASSERT(level > 0);
+ pp = XFS_BMAP_BROOT_PTR_ADDR(mp, block, 1, ifp->if_broot_bytes);
+ bno = be64_to_cpu(*pp);
+ ASSERT(bno != NULLFSBLOCK);
+ ASSERT(XFS_FSB_TO_AGNO(mp, bno) < mp->m_sb.sb_agcount);
+ ASSERT(XFS_FSB_TO_AGBNO(mp, bno) < mp->m_sb.sb_agblocks);
+
+ error = xfs_bmap_count_tree(mp, tp, ifp, bno, level,
+ nextents, count);
+ if (error) {
+ XFS_ERROR_REPORT("xfs_bmap_count_blocks(2)",
+ XFS_ERRLEVEL_LOW, mp);
+ return -EFSCORRUPTED;
+ }
+ return 0;
}
return 0;
struct getbmapx *out, /* output structure */
int prealloced, /* this is a file with
* preallocated data space */
- __int64_t end, /* last block requested */
+ int64_t end, /* last block requested */
xfs_fsblock_t startblock,
bool moretocome)
{
- __int64_t fixlen;
+ int64_t fixlen;
xfs_mount_t *mp; /* file system mount point */
xfs_ifork_t *ifp; /* inode fork pointer */
xfs_extnum_t lastx; /* last extent pointer */
agno = XFS_FSB_TO_AGNO(mp, map->br_startblock);
agbno = XFS_FSB_TO_AGBNO(mp, map->br_startblock);
- error = xfs_reflink_find_shared(mp, agno, agbno, map->br_blockcount,
- &ebno, &elen, true);
+ error = xfs_reflink_find_shared(mp, NULL, agno, agbno,
+ map->br_blockcount, &ebno, &elen, true);
if (error)
return error;
xfs_bmap_format_t formatter, /* format to user */
void *arg) /* formatter arg */
{
- __int64_t bmvend; /* last block requested */
+ int64_t bmvend; /* last block requested */
int error = 0; /* return value */
- __int64_t fixlen; /* length for -1 case */
+ int64_t fixlen; /* length for -1 case */
int i; /* extent number */
int lock; /* lock state */
xfs_bmbt_irec_t *map; /* buffer for user's data */
if (bmv->bmv_length == -1) {
fixlen = XFS_FSB_TO_BB(mp, XFS_B_TO_FSB(mp, fixlen));
bmv->bmv_length =
- max_t(__int64_t, fixlen - bmv->bmv_offset, 0);
+ max_t(int64_t, fixlen - bmv->bmv_offset, 0);
} else if (bmv->bmv_length == 0) {
bmv->bmv_entries = 0;
return 0;
out[cur_ext].bmv_offset +
out[cur_ext].bmv_length;
bmv->bmv_length =
- max_t(__int64_t, 0, bmvend - bmv->bmv_offset);
+ max_t(int64_t, 0, bmvend - bmv->bmv_offset);
/*
* In case we don't want to return the hole,
* extent format...
*/
if (tip->i_d.di_format == XFS_DINODE_FMT_BTREE) {
- if (XFS_IFORK_BOFF(ip) &&
+ if (XFS_IFORK_Q(ip) &&
XFS_BMAP_BMDR_SPACE(tip->i_df.if_broot) > XFS_IFORK_BOFF(ip))
return -EINVAL;
if (XFS_IFORK_NEXTENTS(tip, XFS_DATA_FORK) <=
/* Reciprocal target->temp btree format checks */
if (ip->i_d.di_format == XFS_DINODE_FMT_BTREE) {
- if (XFS_IFORK_BOFF(tip) &&
+ if (XFS_IFORK_Q(tip) &&
XFS_BMAP_BMDR_SPACE(ip->i_df.if_broot) > XFS_IFORK_BOFF(tip))
return -EINVAL;
if (XFS_IFORK_NEXTENTS(ip, XFS_DATA_FORK) <=
xfs_filblks_t ilen;
xfs_filblks_t rlen;
int nimaps;
- __uint64_t tip_flags2;
+ uint64_t tip_flags2;
/*
* If the source file has shared blocks, we must flag the donor
int *target_log_flags)
{
struct xfs_ifork tempifp, *ifp, *tifp;
- int aforkblks = 0;
- int taforkblks = 0;
+ xfs_filblks_t aforkblks = 0;
+ xfs_filblks_t taforkblks = 0;
+ xfs_extnum_t junk;
xfs_extnum_t nextents;
- __uint64_t tmp;
+ uint64_t tmp;
int error;
/*
*/
if ( ((XFS_IFORK_Q(ip) != 0) && (ip->i_d.di_anextents > 0)) &&
(ip->i_d.di_aformat != XFS_DINODE_FMT_LOCAL)) {
- error = xfs_bmap_count_blocks(tp, ip, XFS_ATTR_FORK,
+ error = xfs_bmap_count_blocks(tp, ip, XFS_ATTR_FORK, &junk,
&aforkblks);
if (error)
return error;
}
if ( ((XFS_IFORK_Q(tip) != 0) && (tip->i_d.di_anextents > 0)) &&
(tip->i_d.di_aformat != XFS_DINODE_FMT_LOCAL)) {
- error = xfs_bmap_count_blocks(tp, tip, XFS_ATTR_FORK,
+ error = xfs_bmap_count_blocks(tp, tip, XFS_ATTR_FORK, &junk,
&taforkblks);
if (error)
return error;
/*
* Fix the on-disk inode values
*/
- tmp = (__uint64_t)ip->i_d.di_nblocks;
+ tmp = (uint64_t)ip->i_d.di_nblocks;
ip->i_d.di_nblocks = tip->i_d.di_nblocks - taforkblks + aforkblks;
tip->i_d.di_nblocks = tmp + taforkblks - aforkblks;
- tmp = (__uint64_t) ip->i_d.di_nextents;
+ tmp = (uint64_t) ip->i_d.di_nextents;
ip->i_d.di_nextents = tip->i_d.di_nextents;
tip->i_d.di_nextents = tmp;
- tmp = (__uint64_t) ip->i_d.di_format;
+ tmp = (uint64_t) ip->i_d.di_format;
ip->i_d.di_format = tip->i_d.di_format;
tip->i_d.di_format = tmp;
int error = 0;
int lock_flags;
struct xfs_ifork *cowfp;
- __uint64_t f;
+ uint64_t f;
int resblks;
/*
xfs_daddr_t xfs_fsb_to_db(struct xfs_inode *ip, xfs_fsblock_t fsb);
+int xfs_bmap_count_blocks(struct xfs_trans *tp, struct xfs_inode *ip,
+ int whichfork, xfs_extnum_t *nextents,
+ xfs_filblks_t *count);
+
#endif /* __XFS_BMAP_UTIL_H__ */
{
xfs_alert(bp->b_target->bt_mount,
"metadata I/O error: block 0x%llx (\"%s\") error %d numblks %d",
- (__uint64_t)XFS_BUF_ADDR(bp), func, -bp->b_error, bp->b_length);
+ (uint64_t)XFS_BUF_ADDR(bp), func, -bp->b_error, bp->b_length);
}
int
return error;
}
+/*
+ * Push a single buffer on a delwri queue.
+ *
+ * The purpose of this function is to submit a single buffer of a delwri queue
+ * and return with the buffer still on the original queue. The waiting delwri
+ * buffer submission infrastructure guarantees transfer of the delwri queue
+ * buffer reference to a temporary wait list. We reuse this infrastructure to
+ * transfer the buffer back to the original queue.
+ *
+ * Note the buffer transitions from the queued state, to the submitted and wait
+ * listed state and back to the queued state during this call. The buffer
+ * locking and queue management logic between _delwri_pushbuf() and
+ * _delwri_queue() guarantee that the buffer cannot be queued to another list
+ * before returning.
+ */
+int
+xfs_buf_delwri_pushbuf(
+ struct xfs_buf *bp,
+ struct list_head *buffer_list)
+{
+ LIST_HEAD (submit_list);
+ int error;
+
+ ASSERT(bp->b_flags & _XBF_DELWRI_Q);
+
+ trace_xfs_buf_delwri_pushbuf(bp, _RET_IP_);
+
+ /*
+ * Isolate the buffer to a new local list so we can submit it for I/O
+ * independently from the rest of the original list.
+ */
+ xfs_buf_lock(bp);
+ list_move(&bp->b_list, &submit_list);
+ xfs_buf_unlock(bp);
+
+ /*
+ * Delwri submission clears the DELWRI_Q buffer flag and returns with
+ * the buffer on the wait list with an associated reference. Rather than
+ * bounce the buffer from a local wait list back to the original list
+ * after I/O completion, reuse the original list as the wait list.
+ */
+ xfs_buf_delwri_submit_buffers(&submit_list, buffer_list);
+
+ /*
+ * The buffer is now under I/O and wait listed as during typical delwri
+ * submission. Lock the buffer to wait for I/O completion. Rather than
+ * remove the buffer from the wait list and release the reference, we
+ * want to return with the buffer queued to the original list. The
+ * buffer already sits on the original list with a wait list reference,
+ * however. If we let the queue inherit that wait list reference, all we
+ * need to do is reset the DELWRI_Q flag.
+ */
+ xfs_buf_lock(bp);
+ error = bp->b_error;
+ bp->b_flags |= _XBF_DELWRI_Q;
+ xfs_buf_unlock(bp);
+
+ return error;
+}
+
int __init
xfs_buf_init(void)
{
extern bool xfs_buf_delwri_queue(struct xfs_buf *, struct list_head *);
extern int xfs_buf_delwri_submit(struct list_head *);
extern int xfs_buf_delwri_submit_nowait(struct list_head *);
+extern int xfs_buf_delwri_pushbuf(struct xfs_buf *, struct list_head *);
/* Buffer Daemon Setup Routines */
extern int xfs_buf_init(void);
/*
* Clean buffers, by definition, cannot be in the AIL. However, aborted
- * buffers may be dirty and hence in the AIL. Therefore if we are
- * aborting a buffer and we've just taken the last refernce away, we
- * have to check if it is in the AIL before freeing it. We need to free
- * it in this case, because an aborted transaction has already shut the
- * filesystem down and this is the last chance we will have to do so.
+ * buffers may be in the AIL regardless of dirty state. An aborted
+ * transaction that invalidates a buffer already in the AIL may have
+ * marked it stale and cleared the dirty state, for example.
+ *
+ * Therefore if we are aborting a buffer and we've just taken the last
+ * reference away, we have to check if it is in the AIL before freeing
+ * it. We need to free it in this case, because an aborted transaction
+ * has already shut the filesystem down and this is the last chance we
+ * will have to do so.
*/
if (atomic_dec_and_test(&bip->bli_refcount)) {
- if (clean)
- xfs_buf_item_relse(bp);
- else if (aborted) {
+ if (aborted) {
ASSERT(XFS_FORCED_SHUTDOWN(lip->li_mountp));
xfs_trans_ail_remove(lip, SHUTDOWN_LOG_IO_ERROR);
xfs_buf_item_relse(bp);
- }
+ } else if (clean)
+ xfs_buf_item_relse(bp);
}
if (!(flags & XFS_BLI_HOLD))
static unsigned char
xfs_dir3_get_dtype(
struct xfs_mount *mp,
- __uint8_t filetype)
+ uint8_t filetype)
{
if (!xfs_sb_version_hasftype(&mp->m_sb))
return DT_UNKNOWN;
*/
sfep = xfs_dir2_sf_firstentry(sfp);
for (i = 0; i < sfp->count; i++) {
- __uint8_t filetype;
+ uint8_t filetype;
off = xfs_dir2_db_off_to_dataptr(geo, geo->datablk,
xfs_dir2_sf_get_offset(sfep));
return 0;
lock_mode = xfs_ilock_data_map_shared(dp);
- error = xfs_dir3_block_read(NULL, dp, &bp);
+ error = xfs_dir3_block_read(args->trans, dp, &bp);
xfs_iunlock(dp, lock_mode);
if (error)
return error;
* Each object is a real entry (dep) or an unused one (dup).
*/
while (ptr < endptr) {
- __uint8_t filetype;
+ uint8_t filetype;
dup = (xfs_dir2_data_unused_t *)ptr;
/*
if (!dir_emit(ctx, (char *)dep->name, dep->namelen,
be64_to_cpu(dep->inumber),
xfs_dir3_get_dtype(dp->i_mount, filetype))) {
- xfs_trans_brelse(NULL, bp);
+ xfs_trans_brelse(args->trans, bp);
return 0;
}
}
*/
ctx->pos = xfs_dir2_db_off_to_dataptr(geo, geo->datablk + 1, 0) &
0x7fffffff;
- xfs_trans_brelse(NULL, bp);
+ xfs_trans_brelse(args->trans, bp);
return 0;
}
-struct xfs_dir2_leaf_map_info {
- xfs_extlen_t map_blocks; /* number of fsbs in map */
- xfs_dablk_t map_off; /* last mapped file offset */
- int map_size; /* total entries in *map */
- int map_valid; /* valid entries in *map */
- int nmap; /* mappings to ask xfs_bmapi */
- xfs_dir2_db_t curdb; /* db for current block */
- int ra_current; /* number of read-ahead blks */
- int ra_index; /* *map index for read-ahead */
- int ra_offset; /* map entry offset for ra */
- int ra_want; /* readahead count wanted */
- struct xfs_bmbt_irec map[]; /* map vector for blocks */
-};
-
+/*
+ * Read a directory block and initiate readahead for blocks beyond that.
+ * We maintain a sliding readahead window of the remaining space in the
+ * buffer rounded up to the nearest block.
+ */
STATIC int
xfs_dir2_leaf_readbuf(
struct xfs_da_args *args,
size_t bufsize,
- struct xfs_dir2_leaf_map_info *mip,
- xfs_dir2_off_t *curoff,
- struct xfs_buf **bpp,
- bool trim_map)
+ xfs_dir2_off_t *cur_off,
+ xfs_dablk_t *ra_blk,
+ struct xfs_buf **bpp)
{
struct xfs_inode *dp = args->dp;
struct xfs_buf *bp = NULL;
- struct xfs_bmbt_irec *map = mip->map;
+ struct xfs_da_geometry *geo = args->geo;
+ struct xfs_ifork *ifp = XFS_IFORK_PTR(dp, XFS_DATA_FORK);
+ struct xfs_bmbt_irec map;
struct blk_plug plug;
+ xfs_dir2_off_t new_off;
+ xfs_dablk_t next_ra;
+ xfs_dablk_t map_off;
+ xfs_dablk_t last_da;
+ xfs_extnum_t idx;
+ int ra_want;
int error = 0;
- int length;
- int i;
- int j;
- struct xfs_da_geometry *geo = args->geo;
-
- /*
- * If the caller just finished processing a buffer, it will tell us
- * we need to trim that block out of the mapping now it is done.
- */
- if (trim_map) {
- mip->map_blocks -= geo->fsbcount;
- /*
- * Loop to get rid of the extents for the
- * directory block.
- */
- for (i = geo->fsbcount; i > 0; ) {
- j = min_t(int, map->br_blockcount, i);
- map->br_blockcount -= j;
- map->br_startblock += j;
- map->br_startoff += j;
- /*
- * If mapping is done, pitch it from
- * the table.
- */
- if (!map->br_blockcount && --mip->map_valid)
- memmove(&map[0], &map[1],
- sizeof(map[0]) * mip->map_valid);
- i -= j;
- }
- }
- /*
- * Recalculate the readahead blocks wanted.
- */
- mip->ra_want = howmany(bufsize + geo->blksize, (1 << geo->fsblog)) - 1;
- ASSERT(mip->ra_want >= 0);
-
- /*
- * If we don't have as many as we want, and we haven't
- * run out of data blocks, get some more mappings.
- */
- if (1 + mip->ra_want > mip->map_blocks &&
- mip->map_off < xfs_dir2_byte_to_da(geo, XFS_DIR2_LEAF_OFFSET)) {
- /*
- * Get more bmaps, fill in after the ones
- * we already have in the table.
- */
- mip->nmap = mip->map_size - mip->map_valid;
- error = xfs_bmapi_read(dp, mip->map_off,
- xfs_dir2_byte_to_da(geo, XFS_DIR2_LEAF_OFFSET) -
- mip->map_off,
- &map[mip->map_valid], &mip->nmap, 0);
-
- /*
- * Don't know if we should ignore this or try to return an
- * error. The trouble with returning errors is that readdir
- * will just stop without actually passing the error through.
- */
+ if (!(ifp->if_flags & XFS_IFEXTENTS)) {
+ error = xfs_iread_extents(args->trans, dp, XFS_DATA_FORK);
if (error)
- goto out; /* XXX */
-
- /*
- * If we got all the mappings we asked for, set the final map
- * offset based on the last bmap value received. Otherwise,
- * we've reached the end.
- */
- if (mip->nmap == mip->map_size - mip->map_valid) {
- i = mip->map_valid + mip->nmap - 1;
- mip->map_off = map[i].br_startoff + map[i].br_blockcount;
- } else
- mip->map_off = xfs_dir2_byte_to_da(geo,
- XFS_DIR2_LEAF_OFFSET);
-
- /*
- * Look for holes in the mapping, and eliminate them. Count up
- * the valid blocks.
- */
- for (i = mip->map_valid; i < mip->map_valid + mip->nmap; ) {
- if (map[i].br_startblock == HOLESTARTBLOCK) {
- mip->nmap--;
- length = mip->map_valid + mip->nmap - i;
- if (length)
- memmove(&map[i], &map[i + 1],
- sizeof(map[i]) * length);
- } else {
- mip->map_blocks += map[i].br_blockcount;
- i++;
- }
- }
- mip->map_valid += mip->nmap;
+ goto out;
}
/*
- * No valid mappings, so no more data blocks.
+ * Look for mapped directory blocks at or above the current offset.
+ * Truncate down to the nearest directory block to start the scanning
+ * operation.
*/
- if (!mip->map_valid) {
- *curoff = xfs_dir2_da_to_byte(geo, mip->map_off);
+ last_da = xfs_dir2_byte_to_da(geo, XFS_DIR2_LEAF_OFFSET);
+ map_off = xfs_dir2_db_to_da(geo, xfs_dir2_byte_to_db(geo, *cur_off));
+ if (!xfs_iext_lookup_extent(dp, ifp, map_off, &idx, &map))
goto out;
- }
+ if (map.br_startoff >= last_da)
+ goto out;
+ xfs_trim_extent(&map, map_off, last_da - map_off);
- /*
- * Read the directory block starting at the first mapping.
- */
- mip->curdb = xfs_dir2_da_to_db(geo, map->br_startoff);
- error = xfs_dir3_data_read(NULL, dp, map->br_startoff,
- map->br_blockcount >= geo->fsbcount ?
- XFS_FSB_TO_DADDR(dp->i_mount, map->br_startblock) :
- -1, &bp);
- /*
- * Should just skip over the data block instead of giving up.
- */
+ /* Read the directory block of that first mapping. */
+ new_off = xfs_dir2_da_to_byte(geo, map.br_startoff);
+ if (new_off > *cur_off)
+ *cur_off = new_off;
+ error = xfs_dir3_data_read(args->trans, dp, map.br_startoff, -1, &bp);
if (error)
- goto out; /* XXX */
-
- /*
- * Adjust the current amount of read-ahead: we just read a block that
- * was previously ra.
- */
- if (mip->ra_current)
- mip->ra_current -= geo->fsbcount;
+ goto out;
/*
- * Do we need more readahead?
- * Each loop tries to process 1 full dir blk; last may be partial.
+ * Start readahead for the next bufsize's worth of dir data blocks.
+ * We may have already issued readahead for some of that range;
+ * ra_blk tracks the last block we tried to read(ahead).
*/
+ ra_want = howmany(bufsize + geo->blksize, (1 << geo->fsblog));
+ if (*ra_blk >= last_da)
+ goto out;
+ else if (*ra_blk == 0)
+ *ra_blk = map.br_startoff;
+ next_ra = map.br_startoff + geo->fsbcount;
+ if (next_ra >= last_da)
+ goto out_no_ra;
+ if (map.br_blockcount < geo->fsbcount &&
+ !xfs_iext_get_extent(ifp, ++idx, &map))
+ goto out_no_ra;
+ if (map.br_startoff >= last_da)
+ goto out_no_ra;
+ xfs_trim_extent(&map, next_ra, last_da - next_ra);
+
+ /* Start ra for each dir (not fs) block that has a mapping. */
blk_start_plug(&plug);
- for (mip->ra_index = mip->ra_offset = i = 0;
- mip->ra_want > mip->ra_current && i < mip->map_blocks;
- i += geo->fsbcount) {
- ASSERT(mip->ra_index < mip->map_valid);
- /*
- * Read-ahead a contiguous directory block.
- */
- if (i > mip->ra_current &&
- (map[mip->ra_index].br_blockcount - mip->ra_offset) >=
- geo->fsbcount) {
- xfs_dir3_data_readahead(dp,
- map[mip->ra_index].br_startoff + mip->ra_offset,
- XFS_FSB_TO_DADDR(dp->i_mount,
- map[mip->ra_index].br_startblock +
- mip->ra_offset));
- mip->ra_current = i;
- }
-
- /*
- * Read-ahead a non-contiguous directory block. This doesn't
- * use our mapping, but this is a very rare case.
- */
- else if (i > mip->ra_current) {
- xfs_dir3_data_readahead(dp,
- map[mip->ra_index].br_startoff +
- mip->ra_offset, -1);
- mip->ra_current = i;
- }
-
- /*
- * Advance offset through the mapping table, processing a full
- * dir block even if it is fragmented into several extents.
- * But stop if we have consumed all valid mappings, even if
- * it's not yet a full directory block.
- */
- for (j = 0;
- j < geo->fsbcount && mip->ra_index < mip->map_valid;
- j += length ) {
- /*
- * The rest of this extent but not more than a dir
- * block.
- */
- length = min_t(int, geo->fsbcount - j,
- map[mip->ra_index].br_blockcount -
- mip->ra_offset);
- mip->ra_offset += length;
-
- /*
- * Advance to the next mapping if this one is used up.
- */
- if (mip->ra_offset == map[mip->ra_index].br_blockcount) {
- mip->ra_offset = 0;
- mip->ra_index++;
+ while (ra_want > 0) {
+ next_ra = roundup((xfs_dablk_t)map.br_startoff, geo->fsbcount);
+ while (ra_want > 0 &&
+ next_ra < map.br_startoff + map.br_blockcount) {
+ if (next_ra >= last_da) {
+ *ra_blk = last_da;
+ break;
}
+ if (next_ra > *ra_blk) {
+ xfs_dir3_data_readahead(dp, next_ra, -2);
+ *ra_blk = next_ra;
+ }
+ ra_want -= geo->fsbcount;
+ next_ra += geo->fsbcount;
+ }
+ if (!xfs_iext_get_extent(ifp, ++idx, &map)) {
+ *ra_blk = last_da;
+ break;
}
}
blk_finish_plug(&plug);
out:
*bpp = bp;
return error;
+out_no_ra:
+ *ra_blk = last_da;
+ goto out;
}
/*
xfs_dir2_data_hdr_t *hdr; /* data block header */
xfs_dir2_data_entry_t *dep; /* data entry */
xfs_dir2_data_unused_t *dup; /* unused entry */
- int error = 0; /* error return value */
- int length; /* temporary length value */
- int byteoff; /* offset in current block */
- xfs_dir2_off_t curoff; /* current overall offset */
- xfs_dir2_off_t newoff; /* new curoff after new blk */
char *ptr = NULL; /* pointer to current data */
- struct xfs_dir2_leaf_map_info *map_info;
struct xfs_da_geometry *geo = args->geo;
+ xfs_dablk_t rablk = 0; /* current readahead block */
+ xfs_dir2_off_t curoff; /* current overall offset */
+ int length; /* temporary length value */
+ int byteoff; /* offset in current block */
+ int lock_mode;
+ int error = 0; /* error return value */
/*
* If the offset is at or past the largest allowed value,
if (ctx->pos >= XFS_DIR2_MAX_DATAPTR)
return 0;
- /*
- * Set up to bmap a number of blocks based on the caller's
- * buffer size, the directory block size, and the filesystem
- * block size.
- */
- length = howmany(bufsize + geo->blksize, (1 << geo->fsblog));
- map_info = kmem_zalloc(offsetof(struct xfs_dir2_leaf_map_info, map) +
- (length * sizeof(struct xfs_bmbt_irec)),
- KM_SLEEP | KM_NOFS);
- map_info->map_size = length;
-
/*
* Inside the loop we keep the main offset value as a byte offset
* in the directory file.
*/
curoff = xfs_dir2_dataptr_to_byte(ctx->pos);
- /*
- * Force this conversion through db so we truncate the offset
- * down to get the start of the data block.
- */
- map_info->map_off = xfs_dir2_db_to_da(geo,
- xfs_dir2_byte_to_db(geo, curoff));
-
/*
* Loop over directory entries until we reach the end offset.
* Get more blocks and readahead as necessary.
*/
while (curoff < XFS_DIR2_LEAF_OFFSET) {
- __uint8_t filetype;
+ uint8_t filetype;
/*
* If we have no buffer, or we're off the end of the
* current buffer, need to get another one.
*/
if (!bp || ptr >= (char *)bp->b_addr + geo->blksize) {
- int lock_mode;
- bool trim_map = false;
-
if (bp) {
- xfs_trans_brelse(NULL, bp);
+ xfs_trans_brelse(args->trans, bp);
bp = NULL;
- trim_map = true;
}
lock_mode = xfs_ilock_data_map_shared(dp);
- error = xfs_dir2_leaf_readbuf(args, bufsize, map_info,
- &curoff, &bp, trim_map);
+ error = xfs_dir2_leaf_readbuf(args, bufsize, &curoff,
+ &rablk, &bp);
xfs_iunlock(dp, lock_mode);
- if (error || !map_info->map_valid)
+ if (error || !bp)
break;
- /*
- * Having done a read, we need to set a new offset.
- */
- newoff = xfs_dir2_db_off_to_byte(geo,
- map_info->curdb, 0);
- /*
- * Start of the current block.
- */
- if (curoff < newoff)
- curoff = newoff;
- /*
- * Make sure we're in the right block.
- */
- else if (curoff > newoff)
- ASSERT(xfs_dir2_byte_to_db(geo, curoff) ==
- map_info->curdb);
hdr = bp->b_addr;
xfs_dir3_data_check(dp, bp);
/*
ctx->pos = XFS_DIR2_MAX_DATAPTR & 0x7fffffff;
else
ctx->pos = xfs_dir2_byte_to_dataptr(curoff) & 0x7fffffff;
- kmem_free(map_info);
if (bp)
- xfs_trans_brelse(NULL, bp);
+ xfs_trans_brelse(args->trans, bp);
return error;
}
/*
* Read a directory.
+ *
+ * If supplied, the transaction collects locked dir buffers to avoid
+ * nested buffer deadlocks. This function does not dirty the
+ * transaction. The caller should ensure that the inode is locked
+ * before calling this function.
*/
int
xfs_readdir(
+ struct xfs_trans *tp,
struct xfs_inode *dp,
struct dir_context *ctx,
size_t bufsize)
args.dp = dp;
args.geo = dp->i_mount->m_dir_geo;
+ args.trans = tp;
if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL)
rval = xfs_dir2_sf_getdents(&args, ctx);
xfs_daddr_t start,
xfs_daddr_t end,
xfs_daddr_t minlen,
- __uint64_t *blocks_trimmed)
+ uint64_t *blocks_trimmed)
{
struct block_device *bdev = mp->m_ddev_targp->bt_bdev;
struct xfs_btree_cur *cur;
struct fstrim_range range;
xfs_daddr_t start, end, minlen;
xfs_agnumber_t start_agno, end_agno, agno;
- __uint64_t blocks_trimmed = 0;
+ uint64_t blocks_trimmed = 0;
int error, last_error = 0;
if (!capable(CAP_SYS_ADMIN))
void
xfs_dquot_set_prealloc_limits(struct xfs_dquot *dqp)
{
- __uint64_t space;
+ uint64_t space;
dqp->q_prealloc_hi_wmark = be64_to_cpu(dqp->q_core.d_blk_hardlimit);
dqp->q_prealloc_lo_wmark = be64_to_cpu(dqp->q_core.d_blk_softlimit);
struct xfs_mount *mp = dqp->q_mount;
xfs_dqid_t id = be32_to_cpu(dqp->q_core.d_id);
struct xfs_trans *tp = (tpp ? *tpp : NULL);
- uint lock_mode;
+ uint lock_mode = 0;
quotip = xfs_quota_inode(dqp->q_mount, dqp->dq_flags);
dqp->q_fileoffset = (xfs_fileoff_t)id / mp->m_quotainfo->qi_dqperchunk;
- lock_mode = xfs_ilock_data_map_shared(quotip);
+ ASSERT(!(flags & XFS_QMOPT_NOLOCK) ||
+ xfs_isilocked(quotip, XFS_ILOCK_SHARED) ||
+ xfs_isilocked(quotip, XFS_ILOCK_EXCL));
+ if (!(flags & XFS_QMOPT_NOLOCK))
+ lock_mode = xfs_ilock_data_map_shared(quotip);
if (!xfs_this_quota_on(dqp->q_mount, dqp->dq_flags)) {
/*
* Return if this type of quotas is turned off while we
* didn't have the quota inode lock.
*/
- xfs_iunlock(quotip, lock_mode);
+ if (lock_mode)
+ xfs_iunlock(quotip, lock_mode);
return -ESRCH;
}
error = xfs_bmapi_read(quotip, dqp->q_fileoffset,
XFS_DQUOT_CLUSTER_SIZE_FSB, &map, &nmaps, 0);
- xfs_iunlock(quotip, lock_mode);
+ if (lock_mode)
+ xfs_iunlock(quotip, lock_mode);
if (error)
return error;
*/
static int
xfs_dq_get_next_id(
- xfs_mount_t *mp,
+ struct xfs_mount *mp,
uint type,
- xfs_dqid_t *id,
- loff_t eof)
+ xfs_dqid_t *id)
{
- struct xfs_inode *quotip;
+ struct xfs_inode *quotip = xfs_quota_inode(mp, type);
+ xfs_dqid_t next_id = *id + 1; /* simple advance */
+ uint lock_flags;
+ struct xfs_bmbt_irec got;
+ xfs_extnum_t idx;
xfs_fsblock_t start;
- loff_t offset;
- uint lock;
- xfs_dqid_t next_id;
int error = 0;
- /* Simple advance */
- next_id = *id + 1;
-
/* If we'd wrap past the max ID, stop */
if (next_id < *id)
return -ENOENT;
/* Nope, next_id is now past the current chunk, so find the next one */
start = (xfs_fsblock_t)next_id / mp->m_quotainfo->qi_dqperchunk;
- quotip = xfs_quota_inode(mp, type);
- lock = xfs_ilock_data_map_shared(quotip);
-
- offset = __xfs_seek_hole_data(VFS_I(quotip), XFS_FSB_TO_B(mp, start),
- eof, SEEK_DATA);
- if (offset < 0)
- error = offset;
+ lock_flags = xfs_ilock_data_map_shared(quotip);
+ if (!(quotip->i_df.if_flags & XFS_IFEXTENTS)) {
+ error = xfs_iread_extents(NULL, quotip, XFS_DATA_FORK);
+ if (error)
+ return error;
+ }
- xfs_iunlock(quotip, lock);
+ if (xfs_iext_lookup_extent(quotip, "ip->i_df, start, &idx, &got)) {
+ /* contiguous chunk, bump startoff for the id calculation */
+ if (got.br_startoff < start)
+ got.br_startoff = start;
+ *id = got.br_startoff * mp->m_quotainfo->qi_dqperchunk;
+ } else {
+ error = -ENOENT;
+ }
- /* -ENXIO is essentially "no more data" */
- if (error)
- return (error == -ENXIO ? -ENOENT: error);
+ xfs_iunlock(quotip, lock_flags);
- /* Convert next data offset back to a quota id */
- *id = XFS_B_TO_FSB(mp, offset) * mp->m_quotainfo->qi_dqperchunk;
- return 0;
+ return error;
}
/*
struct xfs_quotainfo *qi = mp->m_quotainfo;
struct radix_tree_root *tree = xfs_dquot_tree(qi, type);
struct xfs_dquot *dqp;
- loff_t eof = 0;
int error;
ASSERT(XFS_IS_QUOTA_RUNNING(mp));
}
#endif
- /* Get the end of the quota file if we need it */
- if (flags & XFS_QMOPT_DQNEXT) {
- struct xfs_inode *quotip;
- xfs_fileoff_t last;
- uint lock_mode;
-
- quotip = xfs_quota_inode(mp, type);
- lock_mode = xfs_ilock_data_map_shared(quotip);
- error = xfs_bmap_last_offset(quotip, &last, XFS_DATA_FORK);
- xfs_iunlock(quotip, lock_mode);
- if (error)
- return error;
- eof = XFS_FSB_TO_B(mp, last);
- }
-
restart:
mutex_lock(&qi->qi_tree_lock);
dqp = radix_tree_lookup(tree, id);
if (XFS_IS_DQUOT_UNINITIALIZED(dqp)) {
xfs_dqunlock(dqp);
mutex_unlock(&qi->qi_tree_lock);
- error = xfs_dq_get_next_id(mp, type, &id, eof);
+ error = xfs_dq_get_next_id(mp, type, &id);
if (error)
return error;
goto restart;
/* If we are asked to find next active id, keep looking */
if (error == -ENOENT && (flags & XFS_QMOPT_DQNEXT)) {
- error = xfs_dq_get_next_id(mp, type, &id, eof);
+ error = xfs_dq_get_next_id(mp, type, &id);
if (!error)
goto restart;
}
if (flags & XFS_QMOPT_DQNEXT) {
if (XFS_IS_DQUOT_UNINITIALIZED(dqp)) {
xfs_qm_dqput(dqp);
- error = xfs_dq_get_next_id(mp, type, &id, eof);
+ error = xfs_dq_get_next_id(mp, type, &id);
if (error)
return error;
goto restart;
#include "xfs_trans_resv.h"
#include "xfs_mount.h"
#include "xfs_error.h"
+#include "xfs_sysfs.h"
#ifdef DEBUG
-int xfs_etest[XFS_NUM_INJECT_ERROR];
-int64_t xfs_etest_fsid[XFS_NUM_INJECT_ERROR];
-char * xfs_etest_fsname[XFS_NUM_INJECT_ERROR];
-int xfs_error_test_active;
+static unsigned int xfs_errortag_random_default[] = {
+ XFS_RANDOM_DEFAULT,
+ XFS_RANDOM_IFLUSH_1,
+ XFS_RANDOM_IFLUSH_2,
+ XFS_RANDOM_IFLUSH_3,
+ XFS_RANDOM_IFLUSH_4,
+ XFS_RANDOM_IFLUSH_5,
+ XFS_RANDOM_IFLUSH_6,
+ XFS_RANDOM_DA_READ_BUF,
+ XFS_RANDOM_BTREE_CHECK_LBLOCK,
+ XFS_RANDOM_BTREE_CHECK_SBLOCK,
+ XFS_RANDOM_ALLOC_READ_AGF,
+ XFS_RANDOM_IALLOC_READ_AGI,
+ XFS_RANDOM_ITOBP_INOTOBP,
+ XFS_RANDOM_IUNLINK,
+ XFS_RANDOM_IUNLINK_REMOVE,
+ XFS_RANDOM_DIR_INO_VALIDATE,
+ XFS_RANDOM_BULKSTAT_READ_CHUNK,
+ XFS_RANDOM_IODONE_IOERR,
+ XFS_RANDOM_STRATREAD_IOERR,
+ XFS_RANDOM_STRATCMPL_IOERR,
+ XFS_RANDOM_DIOWRITE_IOERR,
+ XFS_RANDOM_BMAPIFORMAT,
+ XFS_RANDOM_FREE_EXTENT,
+ XFS_RANDOM_RMAP_FINISH_ONE,
+ XFS_RANDOM_REFCOUNT_CONTINUE_UPDATE,
+ XFS_RANDOM_REFCOUNT_FINISH_ONE,
+ XFS_RANDOM_BMAP_FINISH_ONE,
+ XFS_RANDOM_AG_RESV_CRITICAL,
+ XFS_RANDOM_DROP_WRITES,
+ XFS_RANDOM_LOG_BAD_CRC,
+};
-int
-xfs_error_test(int error_tag, int *fsidp, char *expression,
- int line, char *file, unsigned long randfactor)
+struct xfs_errortag_attr {
+ struct attribute attr;
+ unsigned int tag;
+};
+
+static inline struct xfs_errortag_attr *
+to_attr(struct attribute *attr)
{
- int i;
- int64_t fsid;
+ return container_of(attr, struct xfs_errortag_attr, attr);
+}
- if (prandom_u32() % randfactor)
- return 0;
+static inline struct xfs_mount *
+to_mp(struct kobject *kobject)
+{
+ struct xfs_kobj *kobj = to_kobj(kobject);
- memcpy(&fsid, fsidp, sizeof(xfs_fsid_t));
+ return container_of(kobj, struct xfs_mount, m_errortag_kobj);
+}
+
+STATIC ssize_t
+xfs_errortag_attr_store(
+ struct kobject *kobject,
+ struct attribute *attr,
+ const char *buf,
+ size_t count)
+{
+ struct xfs_mount *mp = to_mp(kobject);
+ struct xfs_errortag_attr *xfs_attr = to_attr(attr);
+ int ret;
+ unsigned int val;
- for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) {
- if (xfs_etest[i] == error_tag && xfs_etest_fsid[i] == fsid) {
- xfs_warn(NULL,
- "Injecting error (%s) at file %s, line %d, on filesystem \"%s\"",
- expression, file, line, xfs_etest_fsname[i]);
- return 1;
- }
+ if (strcmp(buf, "default") == 0) {
+ val = xfs_errortag_random_default[xfs_attr->tag];
+ } else {
+ ret = kstrtouint(buf, 0, &val);
+ if (ret)
+ return ret;
}
- return 0;
+ ret = xfs_errortag_set(mp, xfs_attr->tag, val);
+ if (ret)
+ return ret;
+ return count;
}
+STATIC ssize_t
+xfs_errortag_attr_show(
+ struct kobject *kobject,
+ struct attribute *attr,
+ char *buf)
+{
+ struct xfs_mount *mp = to_mp(kobject);
+ struct xfs_errortag_attr *xfs_attr = to_attr(attr);
+
+ return snprintf(buf, PAGE_SIZE, "%u\n",
+ xfs_errortag_get(mp, xfs_attr->tag));
+}
+
+static const struct sysfs_ops xfs_errortag_sysfs_ops = {
+ .show = xfs_errortag_attr_show,
+ .store = xfs_errortag_attr_store,
+};
+
+#define XFS_ERRORTAG_ATTR_RW(_name, _tag) \
+static struct xfs_errortag_attr xfs_errortag_attr_##_name = { \
+ .attr = {.name = __stringify(_name), \
+ .mode = VERIFY_OCTAL_PERMISSIONS(S_IWUSR | S_IRUGO) }, \
+ .tag = (_tag), \
+}
+
+#define XFS_ERRORTAG_ATTR_LIST(_name) &xfs_errortag_attr_##_name.attr
+
+XFS_ERRORTAG_ATTR_RW(noerror, XFS_ERRTAG_NOERROR);
+XFS_ERRORTAG_ATTR_RW(iflush1, XFS_ERRTAG_IFLUSH_1);
+XFS_ERRORTAG_ATTR_RW(iflush2, XFS_ERRTAG_IFLUSH_2);
+XFS_ERRORTAG_ATTR_RW(iflush3, XFS_ERRTAG_IFLUSH_3);
+XFS_ERRORTAG_ATTR_RW(iflush4, XFS_ERRTAG_IFLUSH_4);
+XFS_ERRORTAG_ATTR_RW(iflush5, XFS_ERRTAG_IFLUSH_5);
+XFS_ERRORTAG_ATTR_RW(iflush6, XFS_ERRTAG_IFLUSH_6);
+XFS_ERRORTAG_ATTR_RW(dareadbuf, XFS_ERRTAG_DA_READ_BUF);
+XFS_ERRORTAG_ATTR_RW(btree_chk_lblk, XFS_ERRTAG_BTREE_CHECK_LBLOCK);
+XFS_ERRORTAG_ATTR_RW(btree_chk_sblk, XFS_ERRTAG_BTREE_CHECK_SBLOCK);
+XFS_ERRORTAG_ATTR_RW(readagf, XFS_ERRTAG_ALLOC_READ_AGF);
+XFS_ERRORTAG_ATTR_RW(readagi, XFS_ERRTAG_IALLOC_READ_AGI);
+XFS_ERRORTAG_ATTR_RW(itobp, XFS_ERRTAG_ITOBP_INOTOBP);
+XFS_ERRORTAG_ATTR_RW(iunlink, XFS_ERRTAG_IUNLINK);
+XFS_ERRORTAG_ATTR_RW(iunlinkrm, XFS_ERRTAG_IUNLINK_REMOVE);
+XFS_ERRORTAG_ATTR_RW(dirinovalid, XFS_ERRTAG_DIR_INO_VALIDATE);
+XFS_ERRORTAG_ATTR_RW(bulkstat, XFS_ERRTAG_BULKSTAT_READ_CHUNK);
+XFS_ERRORTAG_ATTR_RW(logiodone, XFS_ERRTAG_IODONE_IOERR);
+XFS_ERRORTAG_ATTR_RW(stratread, XFS_ERRTAG_STRATREAD_IOERR);
+XFS_ERRORTAG_ATTR_RW(stratcmpl, XFS_ERRTAG_STRATCMPL_IOERR);
+XFS_ERRORTAG_ATTR_RW(diowrite, XFS_ERRTAG_DIOWRITE_IOERR);
+XFS_ERRORTAG_ATTR_RW(bmapifmt, XFS_ERRTAG_BMAPIFORMAT);
+XFS_ERRORTAG_ATTR_RW(free_extent, XFS_ERRTAG_FREE_EXTENT);
+XFS_ERRORTAG_ATTR_RW(rmap_finish_one, XFS_ERRTAG_RMAP_FINISH_ONE);
+XFS_ERRORTAG_ATTR_RW(refcount_continue_update, XFS_ERRTAG_REFCOUNT_CONTINUE_UPDATE);
+XFS_ERRORTAG_ATTR_RW(refcount_finish_one, XFS_ERRTAG_REFCOUNT_FINISH_ONE);
+XFS_ERRORTAG_ATTR_RW(bmap_finish_one, XFS_ERRTAG_BMAP_FINISH_ONE);
+XFS_ERRORTAG_ATTR_RW(ag_resv_critical, XFS_ERRTAG_AG_RESV_CRITICAL);
+XFS_ERRORTAG_ATTR_RW(drop_writes, XFS_ERRTAG_DROP_WRITES);
+XFS_ERRORTAG_ATTR_RW(log_bad_crc, XFS_ERRTAG_LOG_BAD_CRC);
+
+static struct attribute *xfs_errortag_attrs[] = {
+ XFS_ERRORTAG_ATTR_LIST(noerror),
+ XFS_ERRORTAG_ATTR_LIST(iflush1),
+ XFS_ERRORTAG_ATTR_LIST(iflush2),
+ XFS_ERRORTAG_ATTR_LIST(iflush3),
+ XFS_ERRORTAG_ATTR_LIST(iflush4),
+ XFS_ERRORTAG_ATTR_LIST(iflush5),
+ XFS_ERRORTAG_ATTR_LIST(iflush6),
+ XFS_ERRORTAG_ATTR_LIST(dareadbuf),
+ XFS_ERRORTAG_ATTR_LIST(btree_chk_lblk),
+ XFS_ERRORTAG_ATTR_LIST(btree_chk_sblk),
+ XFS_ERRORTAG_ATTR_LIST(readagf),
+ XFS_ERRORTAG_ATTR_LIST(readagi),
+ XFS_ERRORTAG_ATTR_LIST(itobp),
+ XFS_ERRORTAG_ATTR_LIST(iunlink),
+ XFS_ERRORTAG_ATTR_LIST(iunlinkrm),
+ XFS_ERRORTAG_ATTR_LIST(dirinovalid),
+ XFS_ERRORTAG_ATTR_LIST(bulkstat),
+ XFS_ERRORTAG_ATTR_LIST(logiodone),
+ XFS_ERRORTAG_ATTR_LIST(stratread),
+ XFS_ERRORTAG_ATTR_LIST(stratcmpl),
+ XFS_ERRORTAG_ATTR_LIST(diowrite),
+ XFS_ERRORTAG_ATTR_LIST(bmapifmt),
+ XFS_ERRORTAG_ATTR_LIST(free_extent),
+ XFS_ERRORTAG_ATTR_LIST(rmap_finish_one),
+ XFS_ERRORTAG_ATTR_LIST(refcount_continue_update),
+ XFS_ERRORTAG_ATTR_LIST(refcount_finish_one),
+ XFS_ERRORTAG_ATTR_LIST(bmap_finish_one),
+ XFS_ERRORTAG_ATTR_LIST(ag_resv_critical),
+ XFS_ERRORTAG_ATTR_LIST(drop_writes),
+ XFS_ERRORTAG_ATTR_LIST(log_bad_crc),
+ NULL,
+};
+
+struct kobj_type xfs_errortag_ktype = {
+ .release = xfs_sysfs_release,
+ .sysfs_ops = &xfs_errortag_sysfs_ops,
+ .default_attrs = xfs_errortag_attrs,
+};
+
int
-xfs_errortag_add(unsigned int error_tag, xfs_mount_t *mp)
+xfs_errortag_init(
+ struct xfs_mount *mp)
{
- int i;
- int len;
- int64_t fsid;
+ mp->m_errortag = kmem_zalloc(sizeof(unsigned int) * XFS_ERRTAG_MAX,
+ KM_SLEEP | KM_MAYFAIL);
+ if (!mp->m_errortag)
+ return -ENOMEM;
- if (error_tag >= XFS_ERRTAG_MAX)
- return -EINVAL;
+ return xfs_sysfs_init(&mp->m_errortag_kobj, &xfs_errortag_ktype,
+ &mp->m_kobj, "errortag");
+}
- memcpy(&fsid, mp->m_fixedfsid, sizeof(xfs_fsid_t));
+void
+xfs_errortag_del(
+ struct xfs_mount *mp)
+{
+ xfs_sysfs_del(&mp->m_errortag_kobj);
+ kmem_free(mp->m_errortag);
+}
- for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) {
- if (xfs_etest_fsid[i] == fsid && xfs_etest[i] == error_tag) {
- xfs_warn(mp, "error tag #%d on", error_tag);
- return 0;
- }
- }
+bool
+xfs_errortag_test(
+ struct xfs_mount *mp,
+ const char *expression,
+ const char *file,
+ int line,
+ unsigned int error_tag)
+{
+ unsigned int randfactor;
- for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) {
- if (xfs_etest[i] == 0) {
- xfs_warn(mp, "Turned on XFS error tag #%d",
- error_tag);
- xfs_etest[i] = error_tag;
- xfs_etest_fsid[i] = fsid;
- len = strlen(mp->m_fsname);
- xfs_etest_fsname[i] = kmem_alloc(len + 1, KM_SLEEP);
- strcpy(xfs_etest_fsname[i], mp->m_fsname);
- xfs_error_test_active++;
- return 0;
- }
- }
+ /*
+ * To be able to use error injection anywhere, we need to ensure error
+ * injection mechanism is already initialized.
+ *
+ * Code paths like I/O completion can be called before the
+ * initialization is complete, but be able to inject errors in such
+ * places is still useful.
+ */
+ if (!mp->m_errortag)
+ return false;
- xfs_warn(mp, "error tag overflow, too many turned on");
+ ASSERT(error_tag < XFS_ERRTAG_MAX);
+ randfactor = mp->m_errortag[error_tag];
+ if (!randfactor || prandom_u32() % randfactor)
+ return false;
- return 1;
+ xfs_warn_ratelimited(mp,
+"Injecting error (%s) at file %s, line %d, on filesystem \"%s\"",
+ expression, file, line, mp->m_fsname);
+ return true;
}
int
-xfs_errortag_clearall(xfs_mount_t *mp, int loud)
+xfs_errortag_get(
+ struct xfs_mount *mp,
+ unsigned int error_tag)
{
- int64_t fsid;
- int cleared = 0;
- int i;
-
- memcpy(&fsid, mp->m_fixedfsid, sizeof(xfs_fsid_t));
-
-
- for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) {
- if ((fsid == 0LL || xfs_etest_fsid[i] == fsid) &&
- xfs_etest[i] != 0) {
- cleared = 1;
- xfs_warn(mp, "Clearing XFS error tag #%d",
- xfs_etest[i]);
- xfs_etest[i] = 0;
- xfs_etest_fsid[i] = 0LL;
- kmem_free(xfs_etest_fsname[i]);
- xfs_etest_fsname[i] = NULL;
- xfs_error_test_active--;
- }
- }
+ if (error_tag >= XFS_ERRTAG_MAX)
+ return -EINVAL;
+
+ return mp->m_errortag[error_tag];
+}
+
+int
+xfs_errortag_set(
+ struct xfs_mount *mp,
+ unsigned int error_tag,
+ unsigned int tag_value)
+{
+ if (error_tag >= XFS_ERRTAG_MAX)
+ return -EINVAL;
- if (loud || cleared)
- xfs_warn(mp, "Cleared all XFS error tags for filesystem");
+ mp->m_errortag[error_tag] = tag_value;
+ return 0;
+}
+int
+xfs_errortag_add(
+ struct xfs_mount *mp,
+ unsigned int error_tag)
+{
+ if (error_tag >= XFS_ERRTAG_MAX)
+ return -EINVAL;
+
+ return xfs_errortag_set(mp, error_tag,
+ xfs_errortag_random_default[error_tag]);
+}
+
+int
+xfs_errortag_clearall(
+ struct xfs_mount *mp)
+{
+ memset(mp->m_errortag, 0, sizeof(unsigned int) * XFS_ERRTAG_MAX);
return 0;
}
#endif /* DEBUG */
#define XFS_ERRTAG_REFCOUNT_FINISH_ONE 25
#define XFS_ERRTAG_BMAP_FINISH_ONE 26
#define XFS_ERRTAG_AG_RESV_CRITICAL 27
-#define XFS_ERRTAG_MAX 28
+/*
+ * DEBUG mode instrumentation to test and/or trigger delayed allocation
+ * block killing in the event of failed writes. When enabled, all
+ * buffered writes are silenty dropped and handled as if they failed.
+ * All delalloc blocks in the range of the write (including pre-existing
+ * delalloc blocks!) are tossed as part of the write failure error
+ * handling sequence.
+ */
+#define XFS_ERRTAG_DROP_WRITES 28
+#define XFS_ERRTAG_LOG_BAD_CRC 29
+#define XFS_ERRTAG_MAX 30
/*
* Random factors for above tags, 1 means always, 2 means 1/2 time, etc.
#define XFS_RANDOM_REFCOUNT_FINISH_ONE 1
#define XFS_RANDOM_BMAP_FINISH_ONE 1
#define XFS_RANDOM_AG_RESV_CRITICAL 4
+#define XFS_RANDOM_DROP_WRITES 1
+#define XFS_RANDOM_LOG_BAD_CRC 1
#ifdef DEBUG
-extern int xfs_error_test_active;
-extern int xfs_error_test(int, int *, char *, int, char *, unsigned long);
-
-#define XFS_NUM_INJECT_ERROR 10
-#define XFS_TEST_ERROR(expr, mp, tag, rf) \
- ((expr) || (xfs_error_test_active && \
- xfs_error_test((tag), (mp)->m_fixedfsid, "expr", __LINE__, __FILE__, \
- (rf))))
+extern int xfs_errortag_init(struct xfs_mount *mp);
+extern void xfs_errortag_del(struct xfs_mount *mp);
+extern bool xfs_errortag_test(struct xfs_mount *mp, const char *expression,
+ const char *file, int line, unsigned int error_tag);
+#define XFS_TEST_ERROR(expr, mp, tag) \
+ ((expr) || xfs_errortag_test((mp), #expr, __FILE__, __LINE__, (tag)))
-extern int xfs_errortag_add(unsigned int error_tag, struct xfs_mount *mp);
-extern int xfs_errortag_clearall(struct xfs_mount *mp, int loud);
+extern int xfs_errortag_get(struct xfs_mount *mp, unsigned int error_tag);
+extern int xfs_errortag_set(struct xfs_mount *mp, unsigned int error_tag,
+ unsigned int tag_value);
+extern int xfs_errortag_add(struct xfs_mount *mp, unsigned int error_tag);
+extern int xfs_errortag_clearall(struct xfs_mount *mp);
#else
-#define XFS_TEST_ERROR(expr, mp, tag, rf) (expr)
-#define xfs_errortag_add(tag, mp) (ENOSYS)
-#define xfs_errortag_clearall(mp, loud) (ENOSYS)
+#define xfs_errortag_init(mp) (0)
+#define xfs_errortag_del(mp)
+#define XFS_TEST_ERROR(expr, mp, tag) (expr)
+#define xfs_errortag_set(mp, tag, val) (ENOSYS)
+#define xfs_errortag_add(mp, tag) (ENOSYS)
+#define xfs_errortag_clearall(mp) (ENOSYS)
#endif /* DEBUG */
/*
xfs_iunlock(ip, iolock);
eofb.eof_flags = XFS_EOF_FLAGS_SYNC;
xfs_icache_free_eofblocks(ip->i_mount, &eofb);
+ xfs_icache_free_cowblocks(ip->i_mount, &eofb);
goto write_retry;
}
*/
bufsize = (size_t)min_t(loff_t, 32768, ip->i_d.di_size);
- return xfs_readdir(ip, ctx, bufsize);
-}
-
-/*
- * This type is designed to indicate the type of offset we would like
- * to search from page cache for xfs_seek_hole_data().
- */
-enum {
- HOLE_OFF = 0,
- DATA_OFF,
-};
-
-/*
- * Lookup the desired type of offset from the given page.
- *
- * On success, return true and the offset argument will point to the
- * start of the region that was found. Otherwise this function will
- * return false and keep the offset argument unchanged.
- */
-STATIC bool
-xfs_lookup_buffer_offset(
- struct page *page,
- loff_t *offset,
- unsigned int type)
-{
- loff_t lastoff = page_offset(page);
- bool found = false;
- struct buffer_head *bh, *head;
-
- bh = head = page_buffers(page);
- do {
- /*
- * Unwritten extents that have data in the page
- * cache covering them can be identified by the
- * BH_Unwritten state flag. Pages with multiple
- * buffers might have a mix of holes, data and
- * unwritten extents - any buffer with valid
- * data in it should have BH_Uptodate flag set
- * on it.
- */
- if (buffer_unwritten(bh) ||
- buffer_uptodate(bh)) {
- if (type == DATA_OFF)
- found = true;
- } else {
- if (type == HOLE_OFF)
- found = true;
- }
-
- if (found) {
- *offset = lastoff;
- break;
- }
- lastoff += bh->b_size;
- } while ((bh = bh->b_this_page) != head);
-
- return found;
-}
-
-/*
- * This routine is called to find out and return a data or hole offset
- * from the page cache for unwritten extents according to the desired
- * type for xfs_seek_hole_data().
- *
- * The argument offset is used to tell where we start to search from the
- * page cache. Map is used to figure out the end points of the range to
- * lookup pages.
- *
- * Return true if the desired type of offset was found, and the argument
- * offset is filled with that address. Otherwise, return false and keep
- * offset unchanged.
- */
-STATIC bool
-xfs_find_get_desired_pgoff(
- struct inode *inode,
- struct xfs_bmbt_irec *map,
- unsigned int type,
- loff_t *offset)
-{
- struct xfs_inode *ip = XFS_I(inode);
- struct xfs_mount *mp = ip->i_mount;
- struct pagevec pvec;
- pgoff_t index;
- pgoff_t end;
- loff_t endoff;
- loff_t startoff = *offset;
- loff_t lastoff = startoff;
- bool found = false;
-
- pagevec_init(&pvec, 0);
-
- index = startoff >> PAGE_SHIFT;
- endoff = XFS_FSB_TO_B(mp, map->br_startoff + map->br_blockcount);
- end = (endoff - 1) >> PAGE_SHIFT;
- do {
- int want;
- unsigned nr_pages;
- unsigned int i;
-
- want = min_t(pgoff_t, end - index, PAGEVEC_SIZE - 1) + 1;
- nr_pages = pagevec_lookup(&pvec, inode->i_mapping, index,
- want);
- if (nr_pages == 0)
- break;
-
- for (i = 0; i < nr_pages; i++) {
- struct page *page = pvec.pages[i];
- loff_t b_offset;
-
- /*
- * At this point, the page may be truncated or
- * invalidated (changing page->mapping to NULL),
- * or even swizzled back from swapper_space to tmpfs
- * file mapping. However, page->index will not change
- * because we have a reference on the page.
- *
- * If current page offset is beyond where we've ended,
- * we've found a hole.
- */
- if (type == HOLE_OFF && lastoff < endoff &&
- lastoff < page_offset(pvec.pages[i])) {
- found = true;
- *offset = lastoff;
- goto out;
- }
- /* Searching done if the page index is out of range. */
- if (page->index > end)
- goto out;
-
- lock_page(page);
- /*
- * Page truncated or invalidated(page->mapping == NULL).
- * We can freely skip it and proceed to check the next
- * page.
- */
- if (unlikely(page->mapping != inode->i_mapping)) {
- unlock_page(page);
- continue;
- }
-
- if (!page_has_buffers(page)) {
- unlock_page(page);
- continue;
- }
-
- found = xfs_lookup_buffer_offset(page, &b_offset, type);
- if (found) {
- /*
- * The found offset may be less than the start
- * point to search if this is the first time to
- * come here.
- */
- *offset = max_t(loff_t, startoff, b_offset);
- unlock_page(page);
- goto out;
- }
-
- /*
- * We either searching data but nothing was found, or
- * searching hole but found a data buffer. In either
- * case, probably the next page contains the desired
- * things, update the last offset to it so.
- */
- lastoff = page_offset(page) + PAGE_SIZE;
- unlock_page(page);
- }
-
- /*
- * The number of returned pages less than our desired, search
- * done.
- */
- if (nr_pages < want)
- break;
-
- index = pvec.pages[i - 1]->index + 1;
- pagevec_release(&pvec);
- } while (index <= end);
-
- /* No page at lastoff and we are not done - we found a hole. */
- if (type == HOLE_OFF && lastoff < endoff) {
- *offset = lastoff;
- found = true;
- }
-out:
- pagevec_release(&pvec);
- return found;
-}
-
-/*
- * caller must lock inode with xfs_ilock_data_map_shared,
- * can we craft an appropriate ASSERT?
- *
- * end is because the VFS-level lseek interface is defined such that any
- * offset past i_size shall return -ENXIO, but we use this for quota code
- * which does not maintain i_size, and we want to SEEK_DATA past i_size.
- */
-loff_t
-__xfs_seek_hole_data(
- struct inode *inode,
- loff_t start,
- loff_t end,
- int whence)
-{
- struct xfs_inode *ip = XFS_I(inode);
- struct xfs_mount *mp = ip->i_mount;
- loff_t uninitialized_var(offset);
- xfs_fileoff_t fsbno;
- xfs_filblks_t lastbno;
- int error;
-
- if (start >= end) {
- error = -ENXIO;
- goto out_error;
- }
-
- /*
- * Try to read extents from the first block indicated
- * by fsbno to the end block of the file.
- */
- fsbno = XFS_B_TO_FSBT(mp, start);
- lastbno = XFS_B_TO_FSB(mp, end);
-
- for (;;) {
- struct xfs_bmbt_irec map[2];
- int nmap = 2;
- unsigned int i;
-
- error = xfs_bmapi_read(ip, fsbno, lastbno - fsbno, map, &nmap,
- XFS_BMAPI_ENTIRE);
- if (error)
- goto out_error;
-
- /* No extents at given offset, must be beyond EOF */
- if (nmap == 0) {
- error = -ENXIO;
- goto out_error;
- }
-
- for (i = 0; i < nmap; i++) {
- offset = max_t(loff_t, start,
- XFS_FSB_TO_B(mp, map[i].br_startoff));
-
- /* Landed in the hole we wanted? */
- if (whence == SEEK_HOLE &&
- map[i].br_startblock == HOLESTARTBLOCK)
- goto out;
-
- /* Landed in the data extent we wanted? */
- if (whence == SEEK_DATA &&
- (map[i].br_startblock == DELAYSTARTBLOCK ||
- (map[i].br_state == XFS_EXT_NORM &&
- !isnullstartblock(map[i].br_startblock))))
- goto out;
-
- /*
- * Landed in an unwritten extent, try to search
- * for hole or data from page cache.
- */
- if (map[i].br_state == XFS_EXT_UNWRITTEN) {
- if (xfs_find_get_desired_pgoff(inode, &map[i],
- whence == SEEK_HOLE ? HOLE_OFF : DATA_OFF,
- &offset))
- goto out;
- }
- }
-
- /*
- * We only received one extent out of the two requested. This
- * means we've hit EOF and didn't find what we are looking for.
- */
- if (nmap == 1) {
- /*
- * If we were looking for a hole, set offset to
- * the end of the file (i.e., there is an implicit
- * hole at the end of any file).
- */
- if (whence == SEEK_HOLE) {
- offset = end;
- break;
- }
- /*
- * If we were looking for data, it's nowhere to be found
- */
- ASSERT(whence == SEEK_DATA);
- error = -ENXIO;
- goto out_error;
- }
-
- ASSERT(i > 1);
-
- /*
- * Nothing was found, proceed to the next round of search
- * if the next reading offset is not at or beyond EOF.
- */
- fsbno = map[i - 1].br_startoff + map[i - 1].br_blockcount;
- start = XFS_FSB_TO_B(mp, fsbno);
- if (start >= end) {
- if (whence == SEEK_HOLE) {
- offset = end;
- break;
-
git.codelabs.ch / muen / linux.git / commitdiff