linux-kernel - [PATCH] writeback: fix the wrong congested state variable definition

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Message-ID: <1459430381-13947-1-git-send-email-xiakaixu@huawei.com>
Date:	Thu, 31 Mar 2016 13:19:41 +0000
From:	Kaixu Xia <xiakaixu@...wei.com>
To:	<tj@...nel.org>, <axboe@...nel.dk>
CC:	<lizefan@...wei.com>, <jack@...e.cz>, <linux-mm@...ck.org>,
	<akpm@...ux-foundation.org>, <mhocko@...e.com>, <neilb@...e.de>,
	<linux-kernel@...r.kernel.org>, <xiakaixu@...wei.com>
Subject: [PATCH] writeback: fix the wrong congested state variable definition

The right variable definition should be wb_congested_state that
include WB_async_congested and WB_sync_congested. So fix it.

Signed-off-by: Kaixu Xia <xiakaixu@...wei.com>
---
 mm/backing-dev.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/backing-dev.c b/mm/backing-dev.c
index bfbd709..0c6317b 100644
--- a/mm/backing-dev.c
+++ b/mm/backing-dev.c
@@ -898,7 +898,7 @@ static atomic_t nr_wb_congested[2];
 void clear_wb_congested(struct bdi_writeback_congested *congested, int sync)
 {
 	wait_queue_head_t *wqh = &congestion_wqh[sync];
-	enum wb_state bit;
+	enum wb_congested_state bit;
 
 	bit = sync ? WB_sync_congested : WB_async_congested;
 	if (test_and_clear_bit(bit, &congested->state))
@@ -911,7 +911,7 @@ EXPORT_SYMBOL(clear_wb_congested);
 
 void set_wb_congested(struct bdi_writeback_congested *congested, int sync)
 {
-	enum wb_state bit;
+	enum wb_congested_state bit;
 
 	bit = sync ? WB_sync_congested : WB_async_congested;
 	if (!test_and_set_bit(bit, &congested->state))
-- 
1.8.3.4