summaryrefslogtreecommitdiffstats
path: root/fs/xfs/xfs_bmap.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/xfs/xfs_bmap.c')
-rw-r--r--fs/xfs/xfs_bmap.c101
1 files changed, 47 insertions, 54 deletions
diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c
index d0ab788..7a888ca 100644
--- a/fs/xfs/xfs_bmap.c
+++ b/fs/xfs/xfs_bmap.c
@@ -249,7 +249,27 @@ xfs_bmbt_lookup_ge(
}
/*
-* Update the record referred to by cur to the value given
+ * Check if the inode needs to be converted to btree format.
+ */
+static inline bool xfs_bmap_needs_btree(struct xfs_inode *ip, int whichfork)
+{
+ return XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_EXTENTS &&
+ XFS_IFORK_NEXTENTS(ip, whichfork) >
+ XFS_IFORK_MAXEXT(ip, whichfork);
+}
+
+/*
+ * Check if the inode should be converted to extent format.
+ */
+static inline bool xfs_bmap_wants_extents(struct xfs_inode *ip, int whichfork)
+{
+ return XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_BTREE &&
+ XFS_IFORK_NEXTENTS(ip, whichfork) <=
+ XFS_IFORK_MAXEXT(ip, whichfork);
+}
+
+/*
+ * Update the record referred to by cur to the value given
* by [off, bno, len, state].
* This either works (return 0) or gets an EFSCORRUPTED error.
*/
@@ -683,8 +703,8 @@ xfs_bmap_add_extent_delay_real(
goto done;
XFS_WANT_CORRUPTED_GOTO(i == 1, done);
}
- if (bma->ip->i_d.di_format == XFS_DINODE_FMT_EXTENTS &&
- bma->ip->i_d.di_nextents > bma->ip->i_df.if_ext_max) {
+
+ if (xfs_bmap_needs_btree(bma->ip, XFS_DATA_FORK)) {
error = xfs_bmap_extents_to_btree(bma->tp, bma->ip,
bma->firstblock, bma->flist,
&bma->cur, 1, &tmp_rval, XFS_DATA_FORK);
@@ -767,8 +787,8 @@ xfs_bmap_add_extent_delay_real(
goto done;
XFS_WANT_CORRUPTED_GOTO(i == 1, done);
}
- if (bma->ip->i_d.di_format == XFS_DINODE_FMT_EXTENTS &&
- bma->ip->i_d.di_nextents > bma->ip->i_df.if_ext_max) {
+
+ if (xfs_bmap_needs_btree(bma->ip, XFS_DATA_FORK)) {
error = xfs_bmap_extents_to_btree(bma->tp, bma->ip,
bma->firstblock, bma->flist, &bma->cur, 1,
&tmp_rval, XFS_DATA_FORK);
@@ -836,8 +856,8 @@ xfs_bmap_add_extent_delay_real(
goto done;
XFS_WANT_CORRUPTED_GOTO(i == 1, done);
}
- if (bma->ip->i_d.di_format == XFS_DINODE_FMT_EXTENTS &&
- bma->ip->i_d.di_nextents > bma->ip->i_df.if_ext_max) {
+
+ if (xfs_bmap_needs_btree(bma->ip, XFS_DATA_FORK)) {
error = xfs_bmap_extents_to_btree(bma->tp, bma->ip,
bma->firstblock, bma->flist, &bma->cur,
1, &tmp_rval, XFS_DATA_FORK);
@@ -884,8 +904,7 @@ xfs_bmap_add_extent_delay_real(
}
/* convert to a btree if necessary */
- if (XFS_IFORK_FORMAT(bma->ip, XFS_DATA_FORK) == XFS_DINODE_FMT_EXTENTS &&
- XFS_IFORK_NEXTENTS(bma->ip, XFS_DATA_FORK) > ifp->if_ext_max) {
+ if (xfs_bmap_needs_btree(bma->ip, XFS_DATA_FORK)) {
int tmp_logflags; /* partial log flag return val */
ASSERT(bma->cur == NULL);
@@ -1421,8 +1440,7 @@ xfs_bmap_add_extent_unwritten_real(
}
/* convert to a btree if necessary */
- if (XFS_IFORK_FORMAT(ip, XFS_DATA_FORK) == XFS_DINODE_FMT_EXTENTS &&
- XFS_IFORK_NEXTENTS(ip, XFS_DATA_FORK) > ifp->if_ext_max) {
+ if (xfs_bmap_needs_btree(ip, XFS_DATA_FORK)) {
int tmp_logflags; /* partial log flag return val */
ASSERT(cur == NULL);
@@ -1812,8 +1830,7 @@ xfs_bmap_add_extent_hole_real(
}
/* convert to a btree if necessary */
- if (XFS_IFORK_FORMAT(bma->ip, whichfork) == XFS_DINODE_FMT_EXTENTS &&
- XFS_IFORK_NEXTENTS(bma->ip, whichfork) > ifp->if_ext_max) {
+ if (xfs_bmap_needs_btree(bma->ip, whichfork)) {
int tmp_logflags; /* partial log flag return val */
ASSERT(bma->cur == NULL);
@@ -3037,8 +3054,7 @@ xfs_bmap_extents_to_btree(
ifp = XFS_IFORK_PTR(ip, whichfork);
ASSERT(XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_EXTENTS);
- ASSERT(ifp->if_ext_max ==
- XFS_IFORK_SIZE(ip, whichfork) / (uint)sizeof(xfs_bmbt_rec_t));
+
/*
* Make space in the inode incore.
*/
@@ -3184,13 +3200,8 @@ xfs_bmap_forkoff_reset(
ip->i_d.di_format != XFS_DINODE_FMT_BTREE) {
uint dfl_forkoff = xfs_default_attroffset(ip) >> 3;
- if (dfl_forkoff > ip->i_d.di_forkoff) {
+ if (dfl_forkoff > ip->i_d.di_forkoff)
ip->i_d.di_forkoff = dfl_forkoff;
- ip->i_df.if_ext_max =
- XFS_IFORK_DSIZE(ip) / sizeof(xfs_bmbt_rec_t);
- ip->i_afp->if_ext_max =
- XFS_IFORK_ASIZE(ip) / sizeof(xfs_bmbt_rec_t);
- }
}
}
@@ -3430,8 +3441,6 @@ xfs_bmap_add_attrfork(
int error; /* error return value */
ASSERT(XFS_IFORK_Q(ip) == 0);
- ASSERT(ip->i_df.if_ext_max ==
- XFS_IFORK_DSIZE(ip) / (uint)sizeof(xfs_bmbt_rec_t));
mp = ip->i_mount;
ASSERT(!XFS_NOT_DQATTACHED(mp, ip));
@@ -3486,12 +3495,9 @@ xfs_bmap_add_attrfork(
error = XFS_ERROR(EINVAL);
goto error1;
}
- ip->i_df.if_ext_max =
- XFS_IFORK_DSIZE(ip) / (uint)sizeof(xfs_bmbt_rec_t);
+
ASSERT(ip->i_afp == NULL);
ip->i_afp = kmem_zone_zalloc(xfs_ifork_zone, KM_SLEEP);
- ip->i_afp->if_ext_max =
- XFS_IFORK_ASIZE(ip) / (uint)sizeof(xfs_bmbt_rec_t);
ip->i_afp->if_flags = XFS_IFEXTENTS;
logflags = 0;
xfs_bmap_init(&flist, &firstblock);
@@ -3535,20 +3541,17 @@ xfs_bmap_add_attrfork(
} else
spin_unlock(&mp->m_sb_lock);
}
- if ((error = xfs_bmap_finish(&tp, &flist, &committed)))
+
+ error = xfs_bmap_finish(&tp, &flist, &committed);
+ if (error)
goto error2;
- error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES);
- ASSERT(ip->i_df.if_ext_max ==
- XFS_IFORK_DSIZE(ip) / (uint)sizeof(xfs_bmbt_rec_t));
- return error;
+ return xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES);
error2:
xfs_bmap_cancel(&flist);
error1:
xfs_iunlock(ip, XFS_ILOCK_EXCL);
error0:
xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES|XFS_TRANS_ABORT);
- ASSERT(ip->i_df.if_ext_max ==
- XFS_IFORK_DSIZE(ip) / (uint)sizeof(xfs_bmbt_rec_t));
return error;
}
@@ -4379,8 +4382,6 @@ xfs_bmapi_read(
XFS_STATS_INC(xs_blk_mapr);
ifp = XFS_IFORK_PTR(ip, whichfork);
- ASSERT(ifp->if_ext_max ==
- XFS_IFORK_SIZE(ip, whichfork) / (uint)sizeof(xfs_bmbt_rec_t));
if (!(ifp->if_flags & XFS_IFEXTENTS)) {
error = xfs_iread_extents(NULL, ip, whichfork);
@@ -4871,8 +4872,6 @@ xfs_bmapi_write(
return XFS_ERROR(EIO);
ifp = XFS_IFORK_PTR(ip, whichfork);
- ASSERT(ifp->if_ext_max ==
- XFS_IFORK_SIZE(ip, whichfork) / (uint)sizeof(xfs_bmbt_rec_t));
XFS_STATS_INC(xs_blk_mapw);
@@ -4981,8 +4980,7 @@ xfs_bmapi_write(
/*
* Transform from btree to extents, give it cur.
*/
- if (XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_BTREE &&
- XFS_IFORK_NEXTENTS(ip, whichfork) <= ifp->if_ext_max) {
+ if (xfs_bmap_wants_extents(ip, whichfork)) {
int tmp_logflags = 0;
ASSERT(bma.cur);
@@ -4992,10 +4990,10 @@ xfs_bmapi_write(
if (error)
goto error0;
}
- ASSERT(ifp->if_ext_max ==
- XFS_IFORK_SIZE(ip, whichfork) / (uint)sizeof(xfs_bmbt_rec_t));
+
ASSERT(XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_BTREE ||
- XFS_IFORK_NEXTENTS(ip, whichfork) > ifp->if_ext_max);
+ XFS_IFORK_NEXTENTS(ip, whichfork) >
+ XFS_IFORK_MAXEXT(ip, whichfork));
error = 0;
error0:
/*
@@ -5095,8 +5093,7 @@ xfs_bunmapi(
ASSERT(len > 0);
ASSERT(nexts >= 0);
- ASSERT(ifp->if_ext_max ==
- XFS_IFORK_SIZE(ip, whichfork) / (uint)sizeof(xfs_bmbt_rec_t));
+
if (!(ifp->if_flags & XFS_IFEXTENTS) &&
(error = xfs_iread_extents(tp, ip, whichfork)))
return error;
@@ -5322,7 +5319,8 @@ xfs_bunmapi(
*/
if (!wasdel && xfs_trans_get_block_res(tp) == 0 &&
XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_EXTENTS &&
- XFS_IFORK_NEXTENTS(ip, whichfork) >= ifp->if_ext_max &&
+ XFS_IFORK_NEXTENTS(ip, whichfork) >= /* Note the >= */
+ XFS_IFORK_MAXEXT(ip, whichfork) &&
del.br_startoff > got.br_startoff &&
del.br_startoff + del.br_blockcount <
got.br_startoff + got.br_blockcount) {
@@ -5353,13 +5351,11 @@ nodelete:
}
}
*done = bno == (xfs_fileoff_t)-1 || bno < start || lastx < 0;
- ASSERT(ifp->if_ext_max ==
- XFS_IFORK_SIZE(ip, whichfork) / (uint)sizeof(xfs_bmbt_rec_t));
+
/*
* Convert to a btree if necessary.
*/
- if (XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_EXTENTS &&
- XFS_IFORK_NEXTENTS(ip, whichfork) > ifp->if_ext_max) {
+ if (xfs_bmap_needs_btree(ip, whichfork)) {
ASSERT(cur == NULL);
error = xfs_bmap_extents_to_btree(tp, ip, firstblock, flist,
&cur, 0, &tmp_logflags, whichfork);
@@ -5370,8 +5366,7 @@ nodelete:
/*
* transform from btree to extents, give it cur
*/
- else if (XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_BTREE &&
- XFS_IFORK_NEXTENTS(ip, whichfork) <= ifp->if_ext_max) {
+ else if (xfs_bmap_wants_extents(ip, whichfork)) {
ASSERT(cur != NULL);
error = xfs_bmap_btree_to_extents(tp, ip, cur, &tmp_logflags,
whichfork);
@@ -5382,8 +5377,6 @@ nodelete:
/*
* transform from extents to local?
*/
- ASSERT(ifp->if_ext_max ==
- XFS_IFORK_SIZE(ip, whichfork) / (uint)sizeof(xfs_bmbt_rec_t));
error = 0;
error0:
/*
OpenPOWER on IntegriCloud