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mm/vmscan: fix comment logic in balance_pgdat

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In balance_pgdat(), when the low watermark is met, processes sleeping on
pfmemalloc_wait are woken up because they are able to safely make forward
progress.

However, the comment incorrectly states "they should not be able",
which contradicts the actual code behavior. Fix this typo to accurately
reflect the logic.

Link: https://lore.kernel.org/20260821064057.4081-1-enlin.mu@linux.dev
Signed-off-by: Enlin Mu <enlin.mu@unisoc.com>
Signed-off-by: Enlin Mu <enlin.mu@linux.dev>
Reviewed-by: Barry Song <baohua@kernel.org>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Shakeel Butt <shakeel.butt@linux.dev>
Cc: Axel Rasmussen <axelrasmussen@google.com>
Cc: David Hildenbrand <david@kernel.org>
Cc: Kairui Song <kasong@tencent.com>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Wei Xu <weixugc@google.com>
Cc: Yuanchu Xie <yuanchu@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Enlin Mu 2026-08-21 14:40:57 +08:00 committed by Andrew Morton
parent d17c749d32
commit 5d3fe91b70
1 changed files with 1 additions and 1 deletions
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2
mm/vmscan.c
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@ -7276,7 +7276,7 @@ static int balance_pgdat(pg_data_t *pgdat, int order, int highest_zoneidx)
/*
* If the low watermark is met there is no need for processes
* to be throttled on pfmemalloc_wait as they should not be
* to be throttled on pfmemalloc_wait as they should now be
* able to safely make forward progress. Wake them
*/
if (waitqueue_active(&pgdat->pfmemalloc_wait) &&