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authorAllison Henderson2022-05-04 12:40:02 +1000
committerDave Chinner2022-05-04 12:40:02 +1000
commit9a39cdabc172ef2de3f21a34e73cdc1d02338d79 (patch)
treefc9c4172703e9bebbd7343e2011b18e8b172bbab
parent7b3ec2b20e44f579c022ad62243aa18c04c6addc (diff)
xfs: Return from xfs_attr_set_iter if there are no more rmtblks to process
During an attr rename operation, blocks are saved for later removal as rmtblkno2. The rmtblkno is used in the case of needing to alloc more blocks if not enough were available. However, in the case that no further blocks need to be added or removed, we can return as soon as xfs_attr_node_addname completes, rather than rolling the transaction with an -EAGAIN return. This extra loop does not hurt anything right now, but it will be a problem later when we get into log items because we end up with an empty log transaction. So, add a simple check to cut out the unneeded iteration. Signed-off-by: Allison Henderson <allison.henderson@oracle.com> Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Dave Chinner <david@fromorbit.com>
-rw-r--r--fs/xfs/libxfs/xfs_attr.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/xfs/libxfs/xfs_attr.c b/fs/xfs/libxfs/xfs_attr.c
index 2815cfbbae70..e629bf51dc06 100644
--- a/fs/xfs/libxfs/xfs_attr.c
+++ b/fs/xfs/libxfs/xfs_attr.c
@@ -412,6 +412,14 @@ xfs_attr_set_iter(
if (error)
return error;
+ /*
+ * If addname was successful, and we dont need to alloc
+ * or remove anymore blks, we're done.
+ */
+ if (!args->rmtblkno &&
+ !(args->op_flags & XFS_DA_OP_RENAME))
+ return 0;
+
dac->dela_state = XFS_DAS_FOUND_NBLK;
}
trace_xfs_attr_set_iter_return(dac->dela_state, args->dp);