If the first operation in a string of defer ops has no intents,
then there is no reason to commit it before running the first call
to xfs_defer_finish_one(). This allows the defer ops to be used
effectively for non-intent based operations without requiring an
unnecessary extra transaction commit when first called.
This fixes a regression in per-attribute modification transaction
count when delayed attributes are not being used.
Signed-off-by: Dave Chinner <dchinner@xxxxxxxxxx>
Signed-off-by: Allison Henderson <allison.henderson@xxxxxxxxxx>
---
fs/xfs/libxfs/xfs_defer.c | 13 ++++++++++---
1 file changed, 10 insertions(+), 3 deletions(-)
diff --git a/fs/xfs/libxfs/xfs_defer.c b/fs/xfs/libxfs/xfs_defer.c
index 6dac8d6b8c21..26680e9f50f5 100644
--- a/fs/xfs/libxfs/xfs_defer.c
+++ b/fs/xfs/libxfs/xfs_defer.c
@@ -510,9 +510,16 @@ xfs_defer_finish_noroll(
xfs_defer_create_intents(*tp);
list_splice_init(&(*tp)->t_dfops, &dop_pending);
- error = xfs_defer_trans_roll(tp);
- if (error)
- goto out_shutdown;
+ /*
+ * We must ensure the transaction is clean before we try to finish
+ * deferred work by committing logged intent items and anything
+ * else that dirtied the transaction.
+ */
+ if ((*tp)->t_flags & XFS_TRANS_DIRTY) {
+ error = xfs_defer_trans_roll(tp);
+ if (error)
+ goto out_shutdown;
+ }
/* Possibly relog intent items to keep the log moving. */
error = xfs_defer_relog(tp, &dop_pending);
--
2.25.1
