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| author | Kaiyang Zhao <kaiyang2@cs.cmu.edu> | 2024-08-01 21:04:56 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-09-02 06:25:58 +0300 |
| commit | 6d192303e82c7f7119020418a4c3029bebf9a0e6 (patch) | |
| tree | dd059a5859c333cbaa86d0ef2d9cda22196f4ca0 /mm/migrate.c | |
| parent | 81920438a6dce78e6eac17ee34f29bf6c32074b1 (diff) | |
| download | linux-6d192303e82c7f7119020418a4c3029bebf9a0e6.tar.xz | |
mm: consider CMA pages in watermark check for NUMA balancing target node
Currently in migrate_balanced_pgdat(), ALLOC_CMA flag is not passed when
checking watermark on the migration target node. This does not match the
gfp in alloc_misplaced_dst_folio() which allows allocation from CMA.
This causes promotion failures when there are a lot of available CMA
memory in the system.
Therefore, we change the alloc_flags passed to zone_watermark_ok() in
migrate_balanced_pgdat().
Link: https://lkml.kernel.org/r/20240801180456.25927-1-kaiyang2@cs.cmu.edu
Signed-off-by: Kaiyang Zhao <kaiyang2@cs.cmu.edu>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/migrate.c')
| -rw-r--r-- | mm/migrate.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/migrate.c b/mm/migrate.c index 8578a930cad1..aa482c954cb0 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -2526,7 +2526,7 @@ static bool migrate_balanced_pgdat(struct pglist_data *pgdat, if (!zone_watermark_ok(zone, 0, high_wmark_pages(zone) + nr_migrate_pages, - ZONE_MOVABLE, 0)) + ZONE_MOVABLE, ALLOC_CMA)) continue; return true; } |