[PATCH 1/3] xfs: directly return if the delta equal to zero

[xiakaixu1987@xxxxxxxxx]

From: Kaixu Xia <kaixuxia@xxxxxxxxxxx>

It is useless to go on when the variable delta equal to zero in
xfs_trans_mod_dquot(), so just return if the value equal to zero.

Signed-off-by: Kaixu Xia <kaixuxia@xxxxxxxxxxx>
---
 fs/xfs/xfs_trans_dquot.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/fs/xfs/xfs_trans_dquot.c b/fs/xfs/xfs_trans_dquot.c
index 133fc6fc3edd..23c34af71825 100644
--- a/fs/xfs/xfs_trans_dquot.c
+++ b/fs/xfs/xfs_trans_dquot.c
@@ -215,10 +215,11 @@ xfs_trans_mod_dquot(
 	if (qtrx->qt_dquot == NULL)
 		qtrx->qt_dquot = dqp;
 
-	if (delta) {
-		trace_xfs_trans_mod_dquot_before(qtrx);
-		trace_xfs_trans_mod_dquot(tp, dqp, field, delta);
-	}
+	if (!delta)
+		return;
+
+	trace_xfs_trans_mod_dquot_before(qtrx);
+	trace_xfs_trans_mod_dquot(tp, dqp, field, delta);
 
 	switch (field) {
 
@@ -284,8 +285,7 @@ xfs_trans_mod_dquot(
 		ASSERT(0);
 	}
 
-	if (delta)
-		trace_xfs_trans_mod_dquot_after(qtrx);
+	trace_xfs_trans_mod_dquot_after(qtrx);
 
 	tp->t_flags |= XFS_TRANS_DQ_DIRTY;
 }
-- 
2.20.0