diff options
| -rw-r--r-- | mm/slub.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/mm/slub.c b/mm/slub.c index f4a6229848fd..dcbb1926cb7f 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -2028,9 +2028,17 @@ static void flush_cpu_slab(void *d) __flush_cpu_slab(s, smp_processor_id()); } +static bool has_cpu_slab(int cpu, void *info) +{ + struct kmem_cache *s = info; + struct kmem_cache_cpu *c = per_cpu_ptr(s->cpu_slab, cpu); + + return !!(c->page); +} + static void flush_all(struct kmem_cache *s) { - on_each_cpu(flush_cpu_slab, s, 1); + on_each_cpu_cond(has_cpu_slab, flush_cpu_slab, s, 1, GFP_ATOMIC); } /* |