Messages in this thread Patch in this message | | | From | Huangzhaoyang <> | Subject | [RFC PATCH] mm: have kswapd only reclaiming use min protection on memcg | Date | Wed, 27 Oct 2021 15:01:50 +0800 |
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From: Zhaoyang Huang <zhaoyang.huang@unisoc.com>
For the kswapd only reclaiming, there is no chance to try again on this group while direct reclaim has. fix it by judging gfp flag.
Signed-off-by: Zhaoyang Huang <zhaoyang.huang@unisoc.com> --- mm/vmscan.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/mm/vmscan.c b/mm/vmscan.c index 74296c2..41f5776 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -2704,7 +2704,8 @@ static void get_scan_count(struct lruvec *lruvec, struct scan_control *sc, unsigned long protection; /* memory.low scaling, make sure we retry before OOM */ - if (!sc->memcg_low_reclaim && low > min) { + if (!sc->memcg_low_reclaim && low > min + && sc->gfp_mask & __GFP_DIRECT_RECLAIM) { protection = low; sc->memcg_low_skipped = 1; } else { -- 1.9.1
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