[PATCH v7 04/19] 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>
---
 fs/xfs/libxfs/xfs_attr.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/fs/xfs/libxfs/xfs_attr.c b/fs/xfs/libxfs/xfs_attr.c
index 2255060..a2f812f 100644
--- a/fs/xfs/libxfs/xfs_attr.c
+++ b/fs/xfs/libxfs/xfs_attr.c
@@ -437,6 +437,14 @@ xfs_attr_set(
 		goto out_trans_cancel;
 
 	xfs_trans_ijoin(args.trans, dp, 0);
+
+	error = xfs_has_attr(&args);
+	if (error == -EEXIST && (name->type & ATTR_CREATE))
+		goto out_trans_cancel;
+
+	if (error == -ENOATTR && (name->type & ATTR_REPLACE))
+		goto out_trans_cancel;
+
 	error = xfs_attr_set_args(&args);
 	if (error)
 		goto out_trans_cancel;
@@ -525,6 +533,10 @@ xfs_attr_remove(
 	 */
 	xfs_trans_ijoin(args.trans, dp, 0);
 
+	error = xfs_has_attr(&args);
+	if (error != -EEXIST)
+		goto out;
+
 	error = xfs_attr_remove_args(&args);
 	if (error)
 		goto out;
-- 
2.7.4




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