diff options
Diffstat (limited to 'mm/slub.c')
-rw-r--r-- | mm/slub.c | 44 |
1 files changed, 27 insertions, 17 deletions
@@ -217,7 +217,7 @@ struct track { | |||
217 | 217 | ||
218 | enum track_item { TRACK_ALLOC, TRACK_FREE }; | 218 | enum track_item { TRACK_ALLOC, TRACK_FREE }; |
219 | 219 | ||
220 | #if defined(CONFIG_SYSFS) && defined(CONFIG_SLUB_DEBUG) | 220 | #ifdef CONFIG_SLUB_DEBUG |
221 | static int sysfs_slab_add(struct kmem_cache *); | 221 | static int sysfs_slab_add(struct kmem_cache *); |
222 | static int sysfs_slab_alias(struct kmem_cache *, const char *); | 222 | static int sysfs_slab_alias(struct kmem_cache *, const char *); |
223 | static void sysfs_slab_remove(struct kmem_cache *); | 223 | static void sysfs_slab_remove(struct kmem_cache *); |
@@ -814,7 +814,8 @@ static int on_freelist(struct kmem_cache *s, struct page *page, void *search) | |||
814 | return search == NULL; | 814 | return search == NULL; |
815 | } | 815 | } |
816 | 816 | ||
817 | static void trace(struct kmem_cache *s, struct page *page, void *object, int alloc) | 817 | static void trace(struct kmem_cache *s, struct page *page, void *object, |
818 | int alloc) | ||
818 | { | 819 | { |
819 | if (s->flags & SLAB_TRACE) { | 820 | if (s->flags & SLAB_TRACE) { |
820 | printk(KERN_INFO "TRACE %s %s 0x%p inuse=%d fp=0x%p\n", | 821 | printk(KERN_INFO "TRACE %s %s 0x%p inuse=%d fp=0x%p\n", |
@@ -1267,8 +1268,7 @@ static void add_partial(struct kmem_cache_node *n, | |||
1267 | spin_unlock(&n->list_lock); | 1268 | spin_unlock(&n->list_lock); |
1268 | } | 1269 | } |
1269 | 1270 | ||
1270 | static void remove_partial(struct kmem_cache *s, | 1271 | static void remove_partial(struct kmem_cache *s, struct page *page) |
1271 | struct page *page) | ||
1272 | { | 1272 | { |
1273 | struct kmem_cache_node *n = get_node(s, page_to_nid(page)); | 1273 | struct kmem_cache_node *n = get_node(s, page_to_nid(page)); |
1274 | 1274 | ||
@@ -1283,7 +1283,8 @@ static void remove_partial(struct kmem_cache *s, | |||
1283 | * | 1283 | * |
1284 | * Must hold list_lock. | 1284 | * Must hold list_lock. |
1285 | */ | 1285 | */ |
1286 | static inline int lock_and_freeze_slab(struct kmem_cache_node *n, struct page *page) | 1286 | static inline int lock_and_freeze_slab(struct kmem_cache_node *n, |
1287 | struct page *page) | ||
1287 | { | 1288 | { |
1288 | if (slab_trylock(page)) { | 1289 | if (slab_trylock(page)) { |
1289 | list_del(&page->lru); | 1290 | list_del(&page->lru); |
@@ -1420,8 +1421,8 @@ static void unfreeze_slab(struct kmem_cache *s, struct page *page, int tail) | |||
1420 | * so that the others get filled first. That way the | 1421 | * so that the others get filled first. That way the |
1421 | * size of the partial list stays small. | 1422 | * size of the partial list stays small. |
1422 | * | 1423 | * |
1423 | * kmem_cache_shrink can reclaim any empty slabs from the | 1424 | * kmem_cache_shrink can reclaim any empty slabs from |
1424 | * partial list. | 1425 | * the partial list. |
1425 | */ | 1426 | */ |
1426 | add_partial(n, page, 1); | 1427 | add_partial(n, page, 1); |
1427 | slab_unlock(page); | 1428 | slab_unlock(page); |
@@ -2909,7 +2910,7 @@ static int slab_mem_going_online_callback(void *arg) | |||
2909 | return 0; | 2910 | return 0; |
2910 | 2911 | ||
2911 | /* | 2912 | /* |
2912 | * We are bringing a node online. No memory is availabe yet. We must | 2913 | * We are bringing a node online. No memory is available yet. We must |
2913 | * allocate a kmem_cache_node structure in order to bring the node | 2914 | * allocate a kmem_cache_node structure in order to bring the node |
2914 | * online. | 2915 | * online. |
2915 | */ | 2916 | */ |
@@ -3246,7 +3247,7 @@ void *__kmalloc_node_track_caller(size_t size, gfp_t gfpflags, | |||
3246 | return slab_alloc(s, gfpflags, node, caller); | 3247 | return slab_alloc(s, gfpflags, node, caller); |
3247 | } | 3248 | } |
3248 | 3249 | ||
3249 | #if (defined(CONFIG_SYSFS) && defined(CONFIG_SLUB_DEBUG)) || defined(CONFIG_SLABINFO) | 3250 | #ifdef CONFIG_SLUB_DEBUG |
3250 | static unsigned long count_partial(struct kmem_cache_node *n, | 3251 | static unsigned long count_partial(struct kmem_cache_node *n, |
3251 | int (*get_count)(struct page *)) | 3252 | int (*get_count)(struct page *)) |
3252 | { | 3253 | { |
@@ -3275,9 +3276,7 @@ static int count_free(struct page *page) | |||
3275 | { | 3276 | { |
3276 | return page->objects - page->inuse; | 3277 | return page->objects - page->inuse; |
3277 | } | 3278 | } |
3278 | #endif | ||
3279 | 3279 | ||
3280 | #if defined(CONFIG_SYSFS) && defined(CONFIG_SLUB_DEBUG) | ||
3281 | static int validate_slab(struct kmem_cache *s, struct page *page, | 3280 | static int validate_slab(struct kmem_cache *s, struct page *page, |
3282 | unsigned long *map) | 3281 | unsigned long *map) |
3283 | { | 3282 | { |
@@ -3812,7 +3811,12 @@ SLAB_ATTR_RO(objs_per_slab); | |||
3812 | static ssize_t order_store(struct kmem_cache *s, | 3811 | static ssize_t order_store(struct kmem_cache *s, |
3813 | const char *buf, size_t length) | 3812 | const char *buf, size_t length) |
3814 | { | 3813 | { |
3815 | int order = simple_strtoul(buf, NULL, 10); | 3814 | unsigned long order; |
3815 | int err; | ||
3816 | |||
3817 | err = strict_strtoul(buf, 10, &order); | ||
3818 | if (err) | ||
3819 | return err; | ||
3816 | 3820 | ||
3817 | if (order > slub_max_order || order < slub_min_order) | 3821 | if (order > slub_max_order || order < slub_min_order) |
3818 | return -EINVAL; | 3822 | return -EINVAL; |
@@ -4065,10 +4069,16 @@ static ssize_t remote_node_defrag_ratio_show(struct kmem_cache *s, char *buf) | |||
4065 | static ssize_t remote_node_defrag_ratio_store(struct kmem_cache *s, | 4069 | static ssize_t remote_node_defrag_ratio_store(struct kmem_cache *s, |
4066 | const char *buf, size_t length) | 4070 | const char *buf, size_t length) |
4067 | { | 4071 | { |
4068 | int n = simple_strtoul(buf, NULL, 10); | 4072 | unsigned long ratio; |
4073 | int err; | ||
4074 | |||
4075 | err = strict_strtoul(buf, 10, &ratio); | ||
4076 | if (err) | ||
4077 | return err; | ||
4078 | |||
4079 | if (ratio < 100) | ||
4080 | s->remote_node_defrag_ratio = ratio * 10; | ||
4069 | 4081 | ||
4070 | if (n < 100) | ||
4071 | s->remote_node_defrag_ratio = n * 10; | ||
4072 | return length; | 4082 | return length; |
4073 | } | 4083 | } |
4074 | SLAB_ATTR(remote_node_defrag_ratio); | 4084 | SLAB_ATTR(remote_node_defrag_ratio); |
@@ -4425,8 +4435,8 @@ __initcall(slab_sysfs_init); | |||
4425 | */ | 4435 | */ |
4426 | #ifdef CONFIG_SLABINFO | 4436 | #ifdef CONFIG_SLABINFO |
4427 | 4437 | ||
4428 | ssize_t slabinfo_write(struct file *file, const char __user * buffer, | 4438 | ssize_t slabinfo_write(struct file *file, const char __user *buffer, |
4429 | size_t count, loff_t *ppos) | 4439 | size_t count, loff_t *ppos) |
4430 | { | 4440 | { |
4431 | return -EINVAL; | 4441 | return -EINVAL; |
4432 | } | 4442 | } |