diff options
Diffstat (limited to 'mm/slab.h')
| -rw-r--r-- | mm/slab.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/mm/slab.h b/mm/slab.h index 53a623f85931..0a56d76ac0e9 100644 --- a/mm/slab.h +++ b/mm/slab.h @@ -163,6 +163,18 @@ ssize_t slabinfo_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos); #ifdef CONFIG_MEMCG_KMEM +/* + * Iterate over all memcg caches of the given root cache. The caller must hold + * slab_mutex. + */ +#define for_each_memcg_cache(iter, root) \ + list_for_each_entry(iter, &(root)->memcg_params.list, \ + memcg_params.list) + +#define for_each_memcg_cache_safe(iter, tmp, root) \ + list_for_each_entry_safe(iter, tmp, &(root)->memcg_params.list, \ + memcg_params.list) + static inline bool is_root_cache(struct kmem_cache *s) { return s->memcg_params.is_root_cache; @@ -241,6 +253,11 @@ extern void slab_init_memcg_params(struct kmem_cache *); #else /* !CONFIG_MEMCG_KMEM */ +#define for_each_memcg_cache(iter, root) \ + for ((void)(iter), (void)(root); 0; ) +#define for_each_memcg_cache_safe(iter, tmp, root) \ + for ((void)(iter), (void)(tmp), (void)(root); 0; ) + static inline bool is_root_cache(struct kmem_cache *s) { return true; |