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| author | Chen Wandun <chenwandun@huawei.com> | 2022-04-29 14:36:59 -0700 |
|---|---|---|
| committer | akpm <akpm@linux-foundation.org> | 2022-04-29 14:36:59 -0700 |
| commit | d137a7cb9b2ab8155184b2da9a304afff8f84d36 (patch) | |
| tree | 716f3ffba0c6812ec54ac533410815a254a23d1b /mm/page_alloc.c | |
| parent | ec2a0f9c8b50865a11720651c9c536f20c578def (diff) | |
| download | linux-d137a7cb9b2ab8155184b2da9a304afff8f84d36.tar.bz2 | |
mm/page_alloc: simplify update of pgdat in wake_all_kswapds
There is no need to update last_pgdat for each zone, only update
last_pgdat when iterating the first zone of a node.
Link: https://lkml.kernel.org/r/20220322115635.2708989-1-chenwandun@huawei.com
Signed-off-by: Chen Wandun <chenwandun@huawei.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/page_alloc.c')
| -rw-r--r-- | mm/page_alloc.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index e80858f5c2ab..f01c71e41bcf 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -4631,9 +4631,10 @@ static void wake_all_kswapds(unsigned int order, gfp_t gfp_mask, ac->nodemask) { if (!managed_zone(zone)) continue; - if (last_pgdat != zone->zone_pgdat) + if (last_pgdat != zone->zone_pgdat) { wakeup_kswapd(zone, gfp_mask, order, highest_zoneidx); - last_pgdat = zone->zone_pgdat; + last_pgdat = zone->zone_pgdat; + } } } |