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authorDave Airlie <airlied@redhat.com>2017-02-23 12:10:12 +1000
committerDave Airlie <airlied@redhat.com>2017-02-23 12:10:12 +1000
commit94000cc32988a0674923309d35ab9c2405c4b39b (patch)
treeef9d58ea9ad614bfdf6d0c7c6293f05dbd989475 /fs/xfs/xfs_inode.c
parenta5eb76d9c892b8bd7d3505f8897cf126a54860bd (diff)
parent7089db84e356562f8ba737c29e472cc42d530dbc (diff)
Merge tag 'v4.10-rc8' into drm-next
Linux 4.10-rc8 Backmerge Linus rc8 to fix some conflicts, but also to avoid pulling it in via a fixes pull from someone.
Diffstat (limited to 'fs/xfs/xfs_inode.c')
-rw-r--r--fs/xfs/xfs_inode.c23
1 files changed, 12 insertions, 11 deletions
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index b9557795eb74..de32f0fe47c8 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -1792,22 +1792,23 @@ xfs_inactive_ifree(
int error;
/*
- * The ifree transaction might need to allocate blocks for record
- * insertion to the finobt. We don't want to fail here at ENOSPC, so
- * allow ifree to dip into the reserved block pool if necessary.
- *
- * Freeing large sets of inodes generally means freeing inode chunks,
- * directory and file data blocks, so this should be relatively safe.
- * Only under severe circumstances should it be possible to free enough
- * inodes to exhaust the reserve block pool via finobt expansion while
- * at the same time not creating free space in the filesystem.
+ * We try to use a per-AG reservation for any block needed by the finobt
+ * tree, but as the finobt feature predates the per-AG reservation
+ * support a degraded file system might not have enough space for the
+ * reservation at mount time. In that case try to dip into the reserved
+ * pool and pray.
*
* Send a warning if the reservation does happen to fail, as the inode
* now remains allocated and sits on the unlinked list until the fs is
* repaired.
*/
- error = xfs_trans_alloc(mp, &M_RES(mp)->tr_ifree,
- XFS_IFREE_SPACE_RES(mp), 0, XFS_TRANS_RESERVE, &tp);
+ if (unlikely(mp->m_inotbt_nores)) {
+ error = xfs_trans_alloc(mp, &M_RES(mp)->tr_ifree,
+ XFS_IFREE_SPACE_RES(mp), 0, XFS_TRANS_RESERVE,
+ &tp);
+ } else {
+ error = xfs_trans_alloc(mp, &M_RES(mp)->tr_ifree, 0, 0, 0, &tp);
+ }
if (error) {
if (error == -ENOSPC) {
xfs_warn_ratelimited(mp,