diff options
| -rw-r--r-- | mm/slub.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/mm/slub.c b/mm/slub.c index 18f18fbbd97e..253626ef9f37 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -3099,6 +3099,33 @@ static inline void *get_freelist(struct kmem_cache *s, struct slab *slab) } /* + * Freeze the partial slab and return the pointer to the freelist. + */ +static inline void *freeze_slab(struct kmem_cache *s, struct slab *slab) +{ + struct slab new; + unsigned long counters; + void *freelist; + + do { + freelist = slab->freelist; + counters = slab->counters; + + new.counters = counters; + VM_BUG_ON(new.frozen); + + new.inuse = slab->objects; + new.frozen = 1; + + } while (!slab_update_freelist(s, slab, + freelist, counters, + NULL, new.counters, + "freeze_slab")); + + return freelist; +} + +/* * Slow path. The lockless freelist is empty or we need to perform * debugging duties. * |