diff options
Diffstat (limited to 'mm/vmscan.c')
| -rw-r--r-- | mm/vmscan.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c index 5cb4f779ea4a..db0970ba340d 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -183,8 +183,14 @@ static int prealloc_memcg_shrinker(struct shrinker *shrinker) if (id < 0) goto unlock; - if (id >= shrinker_nr_max) + if (id >= shrinker_nr_max) { + if (memcg_expand_shrinker_maps(id)) { + idr_remove(&shrinker_idr, id); + goto unlock; + } + shrinker_nr_max = id + 1; + } shrinker->id = id; ret = 0; unlock: |