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

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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@xxxxxxxxxx>
Reviewed-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
Reviewed-by: Brian Foster <bfoster@xxxxxxxxxx>
---
 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




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