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Message-ID: <20210710100329.49174-5-linmiaohe@huawei.com>
Date: Sat, 10 Jul 2021 18:03:28 +0800
From: Miaohe Lin <linmiaohe@...wei.com>
To: <akpm@...ux-foundation.org>
CC: <hannes@...xchg.org>, <vbabka@...e.cz>, <mhocko@...e.com>,
<axboe@...nel.dk>, <iamjoonsoo.kim@....com>, <alexs@...nel.org>,
<apopple@...dia.com>, <willy@...radead.org>, <minchan@...nel.org>,
<david@...hat.com>, <shli@...com>, <hillf.zj@...baba-inc.com>,
<linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>,
<linmiaohe@...wei.com>
Subject: [PATCH 4/5] mm/vmscan: add 'else' to remove check_pending label
We could add 'else' to remove the somewhat odd check_pending label to
make code core succinct.
Signed-off-by: Miaohe Lin <linmiaohe@...wei.com>
---
mm/vmscan.c | 14 +++++---------
1 file changed, 5 insertions(+), 9 deletions(-)
diff --git a/mm/vmscan.c b/mm/vmscan.c
index c580bef6b885..a74760c48bd8 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -3428,18 +3428,14 @@ static bool throttle_direct_reclaim(gfp_t gfp_mask, struct zonelist *zonelist,
* blocked waiting on the same lock. Instead, throttle for up to a
* second before continuing.
*/
- if (!(gfp_mask & __GFP_FS)) {
+ if (!(gfp_mask & __GFP_FS))
wait_event_interruptible_timeout(pgdat->pfmemalloc_wait,
allow_direct_reclaim(pgdat), HZ);
+ else
+ /* Throttle until kswapd wakes the process */
+ wait_event_killable(zone->zone_pgdat->pfmemalloc_wait,
+ allow_direct_reclaim(pgdat));
- goto check_pending;
- }
-
- /* Throttle until kswapd wakes the process */
- wait_event_killable(zone->zone_pgdat->pfmemalloc_wait,
- allow_direct_reclaim(pgdat));
-
-check_pending:
if (fatal_signal_pending(current))
return true;
--
2.23.0
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