summaryrefslogtreecommitdiff
path: root/fs/xfs/libxfs/xfs_ialloc_btree.c
diff options
context:
space:
mode:
authorIngo Molnar <mingo@kernel.org>2019-06-03 11:56:35 +0200
committerIngo Molnar <mingo@kernel.org>2019-06-03 11:56:35 +0200
commitf7b6a8b30cedaa64ba18d80f1fb3404274281639 (patch)
tree13937ba94eed328bb19b1ccf343cca35446b878b /fs/xfs/libxfs/xfs_ialloc_btree.c
parentb33fb3cf6f5e039dea4a85a708a2c86f8a323575 (diff)
parentf2c7c76c5d0a443053e94adb9f0918fa2fb85c3a (diff)
Merge tag 'v5.2-rc3' into perf/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'fs/xfs/libxfs/xfs_ialloc_btree.c')
-rw-r--r--fs/xfs/libxfs/xfs_ialloc_btree.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/xfs/libxfs/xfs_ialloc_btree.c b/fs/xfs/libxfs/xfs_ialloc_btree.c
index 1080381ff243e..bc2dfacd2f4a0 100644
--- a/fs/xfs/libxfs/xfs_ialloc_btree.c
+++ b/fs/xfs/libxfs/xfs_ialloc_btree.c
@@ -549,6 +549,15 @@ xfs_inobt_max_size(
if (mp->m_inobt_mxr[0] == 0)
return 0;
+ /*
+ * The log is permanently allocated, so the space it occupies will
+ * never be available for the kinds of things that would require btree
+ * expansion. We therefore can pretend the space isn't there.
+ */
+ if (mp->m_sb.sb_logstart &&
+ XFS_FSB_TO_AGNO(mp, mp->m_sb.sb_logstart) == agno)
+ agblocks -= mp->m_sb.sb_logblocks;
+
return xfs_btree_calc_size(mp->m_inobt_mnr,
(uint64_t)agblocks * mp->m_sb.sb_inopblock /
XFS_INODES_PER_CHUNK);