mirror of https://gitee.com/openkylin/linux.git
slab: Common name for the per node structures
Rename the structure used for the per node structures in slab to have a name that expresses that fact. Acked-by: Glauber Costa <glommer@parallels.com> Signed-off-by: Christoph Lameter <cl@linux.com> Signed-off-by: Pekka Enberg <penberg@kernel.org>
This commit is contained in:
Christoph Lameter
Pekka Enberg
parent
e33660165c
commit
6744f087ba
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@ -95,7 +95,7 @@ struct kmem_cache {
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* pointer for each node since "nodelists" uses the remainder of
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* available pointers.
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*/
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struct kmem_list3 **nodelists;
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struct kmem_cache_node **nodelists;
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struct array_cache *array[NR_CPUS + MAX_NUMNODES];
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/*
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* Do not add fields after array[]
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87
mm/slab.c
87
mm/slab.c
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@ -288,7 +288,7 @@ struct arraycache_init {
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/*
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* The slab lists for all objects.
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*/
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struct kmem_list3 {
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struct kmem_cache_node {
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struct list_head slabs_partial; /* partial list first, better asm code */
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struct list_head slabs_full;
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struct list_head slabs_free;
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@ -306,13 +306,13 @@ struct kmem_list3 {
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* Need this for bootstrapping a per node allocator.
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*/
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#define NUM_INIT_LISTS (3 * MAX_NUMNODES)
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static struct kmem_list3 __initdata initkmem_list3[NUM_INIT_LISTS];
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static struct kmem_cache_node __initdata initkmem_list3[NUM_INIT_LISTS];
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#define CACHE_CACHE 0
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#define SIZE_AC MAX_NUMNODES
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#define SIZE_L3 (2 * MAX_NUMNODES)
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static int drain_freelist(struct kmem_cache *cache,
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struct kmem_list3 *l3, int tofree);
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struct kmem_cache_node *l3, int tofree);
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static void free_block(struct kmem_cache *cachep, void **objpp, int len,
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int node);
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static int enable_cpucache(struct kmem_cache *cachep, gfp_t gfp);
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@ -329,9 +329,9 @@ EXPORT_SYMBOL(kmalloc_dma_caches);
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static int slab_early_init = 1;
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#define INDEX_AC kmalloc_index(sizeof(struct arraycache_init))
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#define INDEX_L3 kmalloc_index(sizeof(struct kmem_list3))
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#define INDEX_L3 kmalloc_index(sizeof(struct kmem_cache_node))
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static void kmem_list3_init(struct kmem_list3 *parent)
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static void kmem_list3_init(struct kmem_cache_node *parent)
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{
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INIT_LIST_HEAD(&parent->slabs_full);
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INIT_LIST_HEAD(&parent->slabs_partial);
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@ -546,7 +546,7 @@ static void slab_set_lock_classes(struct kmem_cache *cachep,
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int q)
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{
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struct array_cache **alc;
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struct kmem_list3 *l3;
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struct kmem_cache_node *l3;
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int r;
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l3 = cachep->nodelists[q];
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@ -591,7 +591,7 @@ static void init_node_lock_keys(int q)
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return;
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for (i = 1; i < PAGE_SHIFT + MAX_ORDER; i++) {
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struct kmem_list3 *l3;
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struct kmem_cache_node *l3;
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struct kmem_cache *cache = kmalloc_caches[i];
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if (!cache)
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@ -608,9 +608,8 @@ static void init_node_lock_keys(int q)
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static void on_slab_lock_classes_node(struct kmem_cache *cachep, int q)
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{
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struct kmem_list3 *l3;
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l3 = cachep->nodelists[q];
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if (!l3)
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if (!cachep->nodelists[q])
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return;
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slab_set_lock_classes(cachep, &on_slab_l3_key,
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@ -901,7 +900,7 @@ static inline bool is_slab_pfmemalloc(struct slab *slabp)
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static void recheck_pfmemalloc_active(struct kmem_cache *cachep,
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struct array_cache *ac)
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{
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struct kmem_list3 *l3 = cachep->nodelists[numa_mem_id()];
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struct kmem_cache_node *l3 = cachep->nodelists[numa_mem_id()];
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struct slab *slabp;
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unsigned long flags;
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@ -934,7 +933,7 @@ static void *__ac_get_obj(struct kmem_cache *cachep, struct array_cache *ac,
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/* Ensure the caller is allowed to use objects from PFMEMALLOC slab */
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if (unlikely(is_obj_pfmemalloc(objp))) {
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struct kmem_list3 *l3;
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struct kmem_cache_node *l3;
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if (gfp_pfmemalloc_allowed(flags)) {
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clear_obj_pfmemalloc(&objp);
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@ -1106,7 +1105,7 @@ static void free_alien_cache(struct array_cache **ac_ptr)
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static void __drain_alien_cache(struct kmem_cache *cachep,
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struct array_cache *ac, int node)
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{
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struct kmem_list3 *rl3 = cachep->nodelists[node];
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struct kmem_cache_node *rl3 = cachep->nodelists[node];
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if (ac->avail) {
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spin_lock(&rl3->list_lock);
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@ -1127,7 +1126,7 @@ static void __drain_alien_cache(struct kmem_cache *cachep,
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/*
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* Called from cache_reap() to regularly drain alien caches round robin.
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*/
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static void reap_alien(struct kmem_cache *cachep, struct kmem_list3 *l3)
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static void reap_alien(struct kmem_cache *cachep, struct kmem_cache_node *l3)
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{
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int node = __this_cpu_read(slab_reap_node);
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@ -1162,7 +1161,7 @@ static inline int cache_free_alien(struct kmem_cache *cachep, void *objp)
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{
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struct slab *slabp = virt_to_slab(objp);
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int nodeid = slabp->nodeid;
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struct kmem_list3 *l3;
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struct kmem_cache_node *l3;
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struct array_cache *alien = NULL;
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int node;
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@ -1207,8 +1206,8 @@ static inline int cache_free_alien(struct kmem_cache *cachep, void *objp)
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static int init_cache_nodelists_node(int node)
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{
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struct kmem_cache *cachep;
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struct kmem_list3 *l3;
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const int memsize = sizeof(struct kmem_list3);
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struct kmem_cache_node *l3;
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const int memsize = sizeof(struct kmem_cache_node);
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list_for_each_entry(cachep, &slab_caches, list) {
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/*
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@ -1244,7 +1243,7 @@ static int init_cache_nodelists_node(int node)
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static void __cpuinit cpuup_canceled(long cpu)
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{
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struct kmem_cache *cachep;
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struct kmem_list3 *l3 = NULL;
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struct kmem_cache_node *l3 = NULL;
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int node = cpu_to_mem(cpu);
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const struct cpumask *mask = cpumask_of_node(node);
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@ -1309,7 +1308,7 @@ static void __cpuinit cpuup_canceled(long cpu)
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static int __cpuinit cpuup_prepare(long cpu)
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{
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struct kmem_cache *cachep;
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struct kmem_list3 *l3 = NULL;
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struct kmem_cache_node *l3 = NULL;
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int node = cpu_to_mem(cpu);
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int err;
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@ -1463,7 +1462,7 @@ static int __meminit drain_cache_nodelists_node(int node)
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int ret = 0;
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list_for_each_entry(cachep, &slab_caches, list) {
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struct kmem_list3 *l3;
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struct kmem_cache_node *l3;
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l3 = cachep->nodelists[node];
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if (!l3)
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@ -1516,15 +1515,15 @@ static int __meminit slab_memory_callback(struct notifier_block *self,
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/*
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* swap the static kmem_list3 with kmalloced memory
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*/
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static void __init init_list(struct kmem_cache *cachep, struct kmem_list3 *list,
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static void __init init_list(struct kmem_cache *cachep, struct kmem_cache_node *list,
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int nodeid)
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{
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struct kmem_list3 *ptr;
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struct kmem_cache_node *ptr;
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ptr = kmalloc_node(sizeof(struct kmem_list3), GFP_NOWAIT, nodeid);
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ptr = kmalloc_node(sizeof(struct kmem_cache_node), GFP_NOWAIT, nodeid);
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BUG_ON(!ptr);
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memcpy(ptr, list, sizeof(struct kmem_list3));
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memcpy(ptr, list, sizeof(struct kmem_cache_node));
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/*
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* Do not assume that spinlocks can be initialized via memcpy:
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*/
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@ -1556,7 +1555,7 @@ static void __init set_up_list3s(struct kmem_cache *cachep, int index)
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*/
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static void setup_nodelists_pointer(struct kmem_cache *cachep)
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{
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cachep->nodelists = (struct kmem_list3 **)&cachep->array[nr_cpu_ids];
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cachep->nodelists = (struct kmem_cache_node **)&cachep->array[nr_cpu_ids];
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}
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/*
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@ -1613,7 +1612,7 @@ void __init kmem_cache_init(void)
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*/
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create_boot_cache(kmem_cache, "kmem_cache",
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offsetof(struct kmem_cache, array[nr_cpu_ids]) +
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nr_node_ids * sizeof(struct kmem_list3 *),
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nr_node_ids * sizeof(struct kmem_cache_node *),
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SLAB_HWCACHE_ALIGN);
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list_add(&kmem_cache->list, &slab_caches);
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@ -1787,7 +1786,7 @@ __initcall(cpucache_init);
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static noinline void
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slab_out_of_memory(struct kmem_cache *cachep, gfp_t gfpflags, int nodeid)
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{
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struct kmem_list3 *l3;
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struct kmem_cache_node *l3;
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struct slab *slabp;
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unsigned long flags;
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int node;
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@ -2279,7 +2278,7 @@ static int __init_refok setup_cpu_cache(struct kmem_cache *cachep, gfp_t gfp)
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int node;
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for_each_online_node(node) {
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cachep->nodelists[node] =
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kmalloc_node(sizeof(struct kmem_list3),
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kmalloc_node(sizeof(struct kmem_cache_node),
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gfp, node);
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BUG_ON(!cachep->nodelists[node]);
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kmem_list3_init(cachep->nodelists[node]);
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@ -2547,7 +2546,7 @@ static void check_spinlock_acquired_node(struct kmem_cache *cachep, int node)
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#define check_spinlock_acquired_node(x, y) do { } while(0)
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#endif
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static void drain_array(struct kmem_cache *cachep, struct kmem_list3 *l3,
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static void drain_array(struct kmem_cache *cachep, struct kmem_cache_node *l3,
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struct array_cache *ac,
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int force, int node);
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@ -2567,7 +2566,7 @@ static void do_drain(void *arg)
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static void drain_cpu_caches(struct kmem_cache *cachep)
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{
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struct kmem_list3 *l3;
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struct kmem_cache_node *l3;
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int node;
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on_each_cpu(do_drain, cachep, 1);
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@ -2592,7 +2591,7 @@ static void drain_cpu_caches(struct kmem_cache *cachep)
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* Returns the actual number of slabs released.
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*/
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static int drain_freelist(struct kmem_cache *cache,
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struct kmem_list3 *l3, int tofree)
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struct kmem_cache_node *l3, int tofree)
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{
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struct list_head *p;
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int nr_freed;
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@ -2630,7 +2629,7 @@ static int drain_freelist(struct kmem_cache *cache,
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static int __cache_shrink(struct kmem_cache *cachep)
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{
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int ret = 0, i = 0;
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struct kmem_list3 *l3;
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struct kmem_cache_node *l3;
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drain_cpu_caches(cachep);
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@ -2672,7 +2671,7 @@ EXPORT_SYMBOL(kmem_cache_shrink);
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int __kmem_cache_shutdown(struct kmem_cache *cachep)
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{
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int i;
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struct kmem_list3 *l3;
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struct kmem_cache_node *l3;
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int rc = __cache_shrink(cachep);
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if (rc)
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@ -2869,7 +2868,7 @@ static int cache_grow(struct kmem_cache *cachep,
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struct slab *slabp;
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size_t offset;
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gfp_t local_flags;
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struct kmem_list3 *l3;
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struct kmem_cache_node *l3;
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/*
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* Be lazy and only check for valid flags here, keeping it out of the
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@ -3059,7 +3058,7 @@ static void *cache_alloc_refill(struct kmem_cache *cachep, gfp_t flags,
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bool force_refill)
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{
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int batchcount;
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struct kmem_list3 *l3;
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struct kmem_cache_node *l3;
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struct array_cache *ac;
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int node;
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@ -3391,7 +3390,7 @@ static void *____cache_alloc_node(struct kmem_cache *cachep, gfp_t flags,
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{
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struct list_head *entry;
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struct slab *slabp;
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struct kmem_list3 *l3;
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struct kmem_cache_node *l3;
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void *obj;
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int x;
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@ -3586,7 +3585,7 @@ static void free_block(struct kmem_cache *cachep, void **objpp, int nr_objects,
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int node)
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{
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int i;
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struct kmem_list3 *l3;
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struct kmem_cache_node *l3;
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for (i = 0; i < nr_objects; i++) {
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void *objp;
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@ -3632,7 +3631,7 @@ static void free_block(struct kmem_cache *cachep, void **objpp, int nr_objects,
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static void cache_flusharray(struct kmem_cache *cachep, struct array_cache *ac)
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{
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int batchcount;
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struct kmem_list3 *l3;
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struct kmem_cache_node *l3;
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int node = numa_mem_id();
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batchcount = ac->batchcount;
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@ -3924,7 +3923,7 @@ EXPORT_SYMBOL(kfree);
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static int alloc_kmemlist(struct kmem_cache *cachep, gfp_t gfp)
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{
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int node;
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struct kmem_list3 *l3;
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struct kmem_cache_node *l3;
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struct array_cache *new_shared;
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struct array_cache **new_alien = NULL;
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@ -3969,7 +3968,7 @@ static int alloc_kmemlist(struct kmem_cache *cachep, gfp_t gfp)
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free_alien_cache(new_alien);
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continue;
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}
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l3 = kmalloc_node(sizeof(struct kmem_list3), gfp, node);
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l3 = kmalloc_node(sizeof(struct kmem_cache_node), gfp, node);
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if (!l3) {
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free_alien_cache(new_alien);
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kfree(new_shared);
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@ -4165,7 +4164,7 @@ static int enable_cpucache(struct kmem_cache *cachep, gfp_t gfp)
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* necessary. Note that the l3 listlock also protects the array_cache
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* if drain_array() is used on the shared array.
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*/
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static void drain_array(struct kmem_cache *cachep, struct kmem_list3 *l3,
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static void drain_array(struct kmem_cache *cachep, struct kmem_cache_node *l3,
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struct array_cache *ac, int force, int node)
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{
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int tofree;
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@ -4204,7 +4203,7 @@ static void drain_array(struct kmem_cache *cachep, struct kmem_list3 *l3,
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static void cache_reap(struct work_struct *w)
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{
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struct kmem_cache *searchp;
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struct kmem_list3 *l3;
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struct kmem_cache_node *l3;
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int node = numa_mem_id();
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struct delayed_work *work = to_delayed_work(w);
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@ -4268,7 +4267,7 @@ void get_slabinfo(struct kmem_cache *cachep, struct slabinfo *sinfo)
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const char *name;
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char *error = NULL;
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int node;
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struct kmem_list3 *l3;
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struct kmem_cache_node *l3;
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active_objs = 0;
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num_slabs = 0;
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@ -4482,7 +4481,7 @@ static int leaks_show(struct seq_file *m, void *p)
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{
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struct kmem_cache *cachep = list_entry(p, struct kmem_cache, list);
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struct slab *slabp;
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struct kmem_list3 *l3;
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struct kmem_cache_node *l3;
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const char *name;
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unsigned long *n = m->private;
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int node;
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