[PATCH v1 17/19] xfsprogs: Enable delayed attributes

[Allison Collins <allison.henderson@xxxxxxxxxx>]

Finally enable delayed attributes in xfs_attr_set and
xfs_attr_remove.  We only do this for v4 and up since we
cant add new log entries to old fs versions

Signed-off-by: Allison Collins <allison.henderson@xxxxxxxxxx>
---
 libxfs/xfs_attr.c | 26 ++++++++++++++++++++++++--
 1 file changed, 24 insertions(+), 2 deletions(-)

diff --git a/libxfs/xfs_attr.c b/libxfs/xfs_attr.c
index ecc525c..dc38715 100644
--- a/libxfs/xfs_attr.c
+++ b/libxfs/xfs_attr.c
@@ -507,6 +507,7 @@ xfs_attr_set(
 	int			valuelen)
 {
 	struct xfs_mount	*mp = dp->i_mount;
+	struct xfs_sb		*sbp = &mp->m_sb;
 	struct xfs_da_args	args;
 	struct xfs_trans_res	tres;
 	int			rsvd = (name->type & ATTR_ROOT) != 0;
@@ -565,7 +566,20 @@ xfs_attr_set(
 		goto out_trans_cancel;
 
 	xfs_trans_ijoin(args.trans, dp, 0);
-	error = xfs_attr_set_args(&args);
+	if (XFS_SB_VERSION_NUM(sbp) < XFS_SB_VERSION_4)
+		error = xfs_attr_set_args(&args);
+	else {
+		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_deferred(dp, args.trans, name, value,
+					      valuelen);
+	}
 	if (error)
 		goto out_trans_cancel;
 	if (!args.trans) {
@@ -650,6 +664,7 @@ xfs_attr_remove(
 	struct xfs_name		*name)
 {
 	struct xfs_mount	*mp = dp->i_mount;
+	struct xfs_sb		*sbp = &mp->m_sb;
 	struct xfs_da_args	args;
 	int			error;
 
@@ -691,7 +706,14 @@ xfs_attr_remove(
 	 */
 	xfs_trans_ijoin(args.trans, dp, 0);
 
-	error = xfs_attr_remove_args(&args);
+	error = xfs_has_attr(&args);
+	if (error == -ENOATTR)
+		goto out;
+
+	if (XFS_SB_VERSION_NUM(sbp) < XFS_SB_VERSION_4)
+		error = xfs_attr_remove_args(&args);
+	else
+		error = xfs_attr_remove_deferred(dp, args.trans, name);
 	if (error)
 		goto out;
 
-- 
2.7.4