diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/slab_common.c | 30 | ||||
| -rw-r--r-- | mm/slub.c | 21 |
2 files changed, 23 insertions, 28 deletions
diff --git a/mm/slab_common.c b/mm/slab_common.c index 7df814e..f18c06f 100644 --- a/mm/slab_common.c +++ b/mm/slab_common.c @@ -100,6 +100,7 @@ struct kmem_cache *kmem_cache_create(const char *name, size_t size, size_t align { struct kmem_cache *s = NULL; int err = 0; + char *n; get_online_cpus(); mutex_lock(&slab_mutex); @@ -108,16 +109,26 @@ struct kmem_cache *kmem_cache_create(const char *name, size_t size, size_t align goto out_locked; - s = __kmem_cache_create(name, size, align, flags, ctor); - if (!s) - err = -ENOSYS; /* Until __kmem_cache_create returns code */ + n = kstrdup(name, GFP_KERNEL); + if (!n) { + err = -ENOMEM; + goto out_locked; + } + + s = __kmem_cache_create(n, size, align, flags, ctor); + + if (s) { + /* + * Check if the slab has actually been created and if it was a + * real instatiation. Aliases do not belong on the list + */ + if (s->refcount == 1) + list_add(&s->list, &slab_caches); - /* - * Check if the slab has actually been created and if it was a - * real instatiation. Aliases do not belong on the list - */ - if (s && s->refcount == 1) - list_add(&s->list, &slab_caches); + } else { + kfree(n); + err = -ENOSYS; /* Until __kmem_cache_create returns code */ + } out_locked: mutex_unlock(&slab_mutex); @@ -153,6 +164,7 @@ void kmem_cache_destroy(struct kmem_cache *s) if (s->flags & SLAB_DESTROY_BY_RCU) rcu_barrier(); + kfree(s->name); kmem_cache_free(kmem_cache, s); } else { list_add(&s->list, &slab_caches); @@ -210,10 +210,7 @@ static void sysfs_slab_remove(struct kmem_cache *); static inline int sysfs_slab_add(struct kmem_cache *s) { return 0; } static inline int sysfs_slab_alias(struct kmem_cache *s, const char *p) { return 0; } -static inline void sysfs_slab_remove(struct kmem_cache *s) -{ - kfree(s->name); -} +static inline void sysfs_slab_remove(struct kmem_cache *s) { } #endif @@ -3929,7 +3926,6 @@ struct kmem_cache *__kmem_cache_create(const char *name, size_t size, size_t align, unsigned long flags, void (*ctor)(void *)) { struct kmem_cache *s; - char *n; s = find_mergeable(size, align, flags, name, ctor); if (s) { @@ -3948,13 +3944,9 @@ struct kmem_cache *__kmem_cache_create(const char *name, size_t size, return s; } - n = kstrdup(name, GFP_KERNEL); - if (!n) - return NULL; - s = kmem_cache_alloc(kmem_cache, GFP_KERNEL); if (s) { - if (kmem_cache_open(s, n, + if (kmem_cache_open(s, name, size, align, flags, ctor)) { int r; @@ -3969,7 +3961,6 @@ struct kmem_cache *__kmem_cache_create(const char *name, size_t size, } kmem_cache_free(kmem_cache, s); } - kfree(n); return NULL; } @@ -5200,13 +5191,6 @@ static ssize_t slab_attr_store(struct kobject *kobj, return err; } -static void kmem_cache_release(struct kobject *kobj) -{ - struct kmem_cache *s = to_slab(kobj); - - kfree(s->name); -} - static const struct sysfs_ops slab_sysfs_ops = { .show = slab_attr_show, .store = slab_attr_store, @@ -5214,7 +5198,6 @@ static const struct sysfs_ops slab_sysfs_ops = { static struct kobj_type slab_ktype = { .sysfs_ops = &slab_sysfs_ops, - .release = kmem_cache_release }; static int uevent_filter(struct kset *kset, struct kobject *kobj) |