[PATCH v11 02/25] xfs: Check for -ENOATTR or -EEXIST

Allison Collins
2020-07-21T00:16:17Z

Delayed operations cannot return error codes. So we must check for
these conditions first before starting set or remove operations

Signed-off-by: Allison Collins <allison.henderson@oracle.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
---
fs/xfs/libxfs/xfs_attr.c | 13 +++++++++++++
1 file changed, 13 insertions(+)

diff --git a/fs/xfs/libxfs/xfs_attr.c b/fs/xfs/libxfs/xfs_attr.c
index cecc794..ff28d6e 100644
--- a/fs/xfs/libxfs/xfs_attr.c
+++ b/fs/xfs/libxfs/xfs_attr.c
@@ -404,6 +404,15 @@ xfs_attr_set(
args->total, 0, quota_flags);
if (error)
goto out_trans_cancel;
+
+ error = xfs_has_attr(args);
+ if (error == -EEXIST && (args->attr_flags & XATTR_CREATE))
+ goto out_trans_cancel;
+ if (error == -ENOATTR && (args->attr_flags & XATTR_REPLACE))
+ goto out_trans_cancel;
+ if (error != -ENOATTR && error != -EEXIST)
+ goto out_trans_cancel;
+
error = xfs_attr_set_args(args);
if (error)
goto out_trans_cancel;
@@ -411,6 +420,10 @@ xfs_attr_set(
if (!args->trans)
goto out_unlock;
} else {
+ error = xfs_has_attr(args);
+ if (error != -EEXIST)
+ goto out_trans_cancel;
+
error = xfs_attr_remove_args(args);
if (error)
goto out_trans_cancel;
--
2.7.4