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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6: SLUB: dynamic per-cache MIN_PARTIAL mm: unexport ksize
This commit is contained in:
commit
4fbb71597a
4 changed files with 20 additions and 10 deletions
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@ -46,6 +46,7 @@ struct kmem_cache_cpu {
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struct kmem_cache_node {
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spinlock_t list_lock; /* Protect partial list and nr_partial */
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unsigned long nr_partial;
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unsigned long min_partial;
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struct list_head partial;
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#ifdef CONFIG_SLUB_DEBUG
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atomic_long_t nr_slabs;
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@ -4472,4 +4472,3 @@ size_t ksize(const void *objp)
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return obj_size(virt_to_cache(objp));
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}
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EXPORT_SYMBOL(ksize);
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@ -519,7 +519,6 @@ size_t ksize(const void *block)
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else
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return sp->page.private;
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}
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EXPORT_SYMBOL(ksize);
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struct kmem_cache {
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unsigned int size, align;
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27
mm/slub.c
27
mm/slub.c
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@ -1329,7 +1329,7 @@ static struct page *get_any_partial(struct kmem_cache *s, gfp_t flags)
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n = get_node(s, zone_to_nid(zone));
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if (n && cpuset_zone_allowed_hardwall(zone, flags) &&
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n->nr_partial > MIN_PARTIAL) {
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n->nr_partial > n->min_partial) {
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page = get_partial_node(n);
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if (page)
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return page;
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@ -1381,7 +1381,7 @@ static void unfreeze_slab(struct kmem_cache *s, struct page *page, int tail)
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slab_unlock(page);
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} else {
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stat(c, DEACTIVATE_EMPTY);
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if (n->nr_partial < MIN_PARTIAL) {
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if (n->nr_partial < n->min_partial) {
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/*
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* Adding an empty slab to the partial slabs in order
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* to avoid page allocator overhead. This slab needs
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@ -1913,9 +1913,21 @@ static void init_kmem_cache_cpu(struct kmem_cache *s,
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#endif
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}
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static void init_kmem_cache_node(struct kmem_cache_node *n)
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static void
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init_kmem_cache_node(struct kmem_cache_node *n, struct kmem_cache *s)
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{
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n->nr_partial = 0;
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/*
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* The larger the object size is, the more pages we want on the partial
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* list to avoid pounding the page allocator excessively.
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*/
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n->min_partial = ilog2(s->size);
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if (n->min_partial < MIN_PARTIAL)
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n->min_partial = MIN_PARTIAL;
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else if (n->min_partial > MAX_PARTIAL)
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n->min_partial = MAX_PARTIAL;
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spin_lock_init(&n->list_lock);
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INIT_LIST_HEAD(&n->partial);
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#ifdef CONFIG_SLUB_DEBUG
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@ -2087,7 +2099,7 @@ static struct kmem_cache_node *early_kmem_cache_node_alloc(gfp_t gfpflags,
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init_object(kmalloc_caches, n, 1);
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init_tracking(kmalloc_caches, n);
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#endif
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init_kmem_cache_node(n);
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init_kmem_cache_node(n, kmalloc_caches);
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inc_slabs_node(kmalloc_caches, node, page->objects);
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/*
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@ -2144,7 +2156,7 @@ static int init_kmem_cache_nodes(struct kmem_cache *s, gfp_t gfpflags)
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}
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s->node[node] = n;
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init_kmem_cache_node(n);
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init_kmem_cache_node(n, s);
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}
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return 1;
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}
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@ -2155,7 +2167,7 @@ static void free_kmem_cache_nodes(struct kmem_cache *s)
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static int init_kmem_cache_nodes(struct kmem_cache *s, gfp_t gfpflags)
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{
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init_kmem_cache_node(&s->local_node);
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init_kmem_cache_node(&s->local_node, s);
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return 1;
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}
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#endif
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@ -2715,7 +2727,6 @@ size_t ksize(const void *object)
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*/
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return s->size;
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}
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EXPORT_SYMBOL(ksize);
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void kfree(const void *x)
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{
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@ -2890,7 +2901,7 @@ static int slab_mem_going_online_callback(void *arg)
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ret = -ENOMEM;
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goto out;
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}
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init_kmem_cache_node(n);
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init_kmem_cache_node(n, s);
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s->node[nid] = n;
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}
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out:
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