From: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
Any time we try to modify a file's contents and it fails due to ENOSPC
or EDQUOT, force inactivation work to free up some resources and try one
more time.
Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
---
fs/xfs/xfs_iomap.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c
index b398f197d748..192852499729 100644
--- a/fs/xfs/xfs_iomap.c
+++ b/fs/xfs/xfs_iomap.c
@@ -883,6 +883,7 @@ xfs_buffered_write_iomap_begin(
struct xfs_iext_cursor icur, ccur;
xfs_fsblock_t prealloc_blocks = 0;
bool eof = false, cow_eof = false, shared = false;
+ bool cleared_space = false;
int allocfork = XFS_DATA_FORK;
int error = 0;
@@ -893,6 +894,7 @@ xfs_buffered_write_iomap_begin(
ASSERT(!XFS_IS_REALTIME_INODE(ip));
+start_over:
xfs_ilock(ip, XFS_ILOCK_EXCL);
if (XFS_IS_CORRUPT(mp, !xfs_ifork_has_extents(ip, XFS_DATA_FORK)) ||
@@ -1035,6 +1037,18 @@ xfs_buffered_write_iomap_begin(
break;
case -ENOSPC:
case -EDQUOT:
+ /*
+ * If the delalloc reservation failed due to a lack of space,
+ * try to flush inactive inodes to free some space.
+ */
+ if (!cleared_space) {
+ cleared_space = true;
+ allocfork = XFS_DATA_FORK;
+ xfs_iunlock(ip, XFS_ILOCK_EXCL);
+ xfs_inactive_force(mp);
+ error = 0;
+ goto start_over;
+ }
/* retry without any preallocation */
trace_xfs_delalloc_enospc(ip, offset, count);
if (prealloc_blocks) {
