Messages in this thread Patch in this message | | | Date | Tue, 28 Mar 2023 06:16:37 +0000 | Subject | [PATCH v1 8/9] vmscan: memcg: sleep when flushing stats during reclaim | From | Yosry Ahmed <> |
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Memory reclaim is a sleepable context. Allow sleeping when flushing memcg stats to avoid unnecessarily performing a lot of work without sleeping. This can slow down reclaim code if flushing stats is taking too long, but there is already multiple cond_resched()'s in reclaim code.
Signed-off-by: Yosry Ahmed <yosryahmed@google.com> --- mm/vmscan.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/vmscan.c b/mm/vmscan.c index a9511ccb936f..9c1c5e8b24b8 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -2845,7 +2845,7 @@ static void prepare_scan_count(pg_data_t *pgdat, struct scan_control *sc) * Flush the memory cgroup stats, so that we read accurate per-memcg * lruvec stats for heuristics. */ - mem_cgroup_flush_stats_atomic(); + mem_cgroup_flush_stats(); /* * Determine the scan balance between anon and file LRUs. -- 2.40.0.348.gf938b09366-goog
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