[PATCH 3/6] gfs2: simplify current_tail() via list_last_entry_or_null()

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



From: Jie Liu <jeff.liu@xxxxxxxxxx>

Simplify the code in current_tail() via list_last_entry_or_null().

Signed-off-by: Jie Liu <jeff.liu@xxxxxxxxxx>
---
 fs/gfs2/log.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/fs/gfs2/log.c b/fs/gfs2/log.c
index 610613f..555f767 100644
--- a/fs/gfs2/log.c
+++ b/fs/gfs2/log.c
@@ -441,13 +441,9 @@ static unsigned int current_tail(struct gfs2_sbd *sdp)
 
 	spin_lock(&sdp->sd_ail_lock);
 
-	if (list_empty(&sdp->sd_ail1_list)) {
-		tail = sdp->sd_log_head;
-	} else {
-		tr = list_entry(sdp->sd_ail1_list.prev, struct gfs2_trans,
-				tr_list);
-		tail = tr->tr_first;
-	}
+	tr = list_last_entry_or_null(&sdp->sd_ail1_list, struct gfs2_trans,
+				     tr_list);
+	tail = tr ? tr->tr_first : sdp->sd_log_head;
 
 	spin_unlock(&sdp->sd_ail_lock);
 
-- 
1.8.3.2

_______________________________________________
xfs mailing list
xfs@xxxxxxxxxxx
http://oss.sgi.com/mailman/listinfo/xfs




[Index of Archives]     [Linux XFS Devel]     [Linux Filesystem Development]     [Filesystem Testing]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux