From b2cb6826b6df2bdf91ae4406fd2ef97da7a9cd35 Mon Sep 17 00:00:00 2001 From: Miaohe Lin Date: Thu, 28 Apr 2022 23:16:04 -0700 Subject: mm/vmscan: fix comment for isolate_lru_pages Since commit 791b48b64232 ("mm: vmscan: scan until it finds eligible pages"), splicing any skipped pages to the tail of the LRU list won't put the system at risk of premature OOM but will waste lots of cpu cycles. Correct the comment accordingly. Link: https://lkml.kernel.org/r/20220416025231.8082-1-linmiaohe@huawei.com Signed-off-by: Miaohe Lin Cc: Minchan Kim Signed-off-by: Andrew Morton --- mm/vmscan.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'mm') diff --git a/mm/vmscan.c b/mm/vmscan.c index c5bfbb74fde1..6e255e2867d2 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -2117,8 +2117,8 @@ move: * Splice any skipped pages to the start of the LRU list. Note that * this disrupts the LRU order when reclaiming for lower zones but * we cannot splice to the tail. If we did then the SWAP_CLUSTER_MAX - * scanning would soon rescan the same pages to skip and put the - * system at risk of premature OOM. + * scanning would soon rescan the same pages to skip and waste lots + * of cpu cycles. */ if (!list_empty(&pages_skipped)) { int zid; -- cgit v1.2.3