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authorDave Chinner <david@fromorbit.com>2009-04-06 18:48:30 +0200
committerChristoph Hellwig <hch@brick.lst.de>2009-04-06 18:48:30 +0200
commit153fec43ce5264dfe9f3530b281a2e940b25a0a8 (patch)
tree803fa00839de5702a0349b434d24a788e9753d4e
parente43afd72d2455defd63a3f94f22fa09b586e58ed (diff)
xfs: flush delayed allcoation blocks on ENOSPC in create
If we are creating lots of small files, we can fail to get a reservation for inode create earlier than we should due to EOF preallocation done during delayed allocation reservation. Hence on the first reservation ENOSPC failure flush all the delayed allocation blocks out of the system and retry. This fixes the last commonly triggered spurious ENOSPC issue that has been reported. Signed-off-by: Dave Chinner <david@fromorbit.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
-rw-r--r--fs/xfs/xfs_vnodeops.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c
index 7394c7af5de..19cf90a9c76 100644
--- a/fs/xfs/xfs_vnodeops.c
+++ b/fs/xfs/xfs_vnodeops.c
@@ -1457,6 +1457,13 @@ xfs_create(
error = xfs_trans_reserve(tp, resblks, log_res, 0,
XFS_TRANS_PERM_LOG_RES, log_count);
if (error == ENOSPC) {
+ /* flush outstanding delalloc blocks and retry */
+ xfs_flush_inodes(dp);
+ error = xfs_trans_reserve(tp, resblks, XFS_CREATE_LOG_RES(mp), 0,
+ XFS_TRANS_PERM_LOG_RES, XFS_CREATE_LOG_COUNT);
+ }
+ if (error == ENOSPC) {
+ /* No space at all so try a "no-allocation" reservation */
resblks = 0;
error = xfs_trans_reserve(tp, 0, log_res, 0,
XFS_TRANS_PERM_LOG_RES, log_count);