diff options
| -rw-r--r-- | fs/super.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/fs/super.c b/fs/super.c index 482b4071f4de..a89d6250bab8 100644 --- a/fs/super.c +++ b/fs/super.c @@ -91,14 +91,17 @@ static unsigned long super_cache_scan(struct shrinker *shrink, /* * prune the dcache first as the icache is pinned by it, then * prune the icache, followed by the filesystem specific caches + * + * Ensure that we always scan at least one object - memcg kmem + * accounting uses this to fully empty the caches. */ - sc->nr_to_scan = dentries; + sc->nr_to_scan = dentries + 1; freed = prune_dcache_sb(sb, sc); - sc->nr_to_scan = inodes; + sc->nr_to_scan = inodes + 1; freed += prune_icache_sb(sb, sc); if (fs_objects) { - sc->nr_to_scan = fs_objects; + sc->nr_to_scan = fs_objects + 1; freed += sb->s_op->free_cached_objects(sb, sc); } |