From 6744f087ba2a49f6d6935d9daa0b20a0f03567b5 Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Thu, 10 Jan 2013 19:12:17 +0000 Subject: [PATCH] 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 Signed-off-by: Christoph Lameter Signed-off-by: Pekka Enberg --- include/linux/slab_def.h | 2 +- mm/slab.c | 87 ++++++++++++++++++++-------------------- 2 files changed, 44 insertions(+), 45 deletions(-) diff --git a/include/linux/slab_def.h b/include/linux/slab_def.h index e0f30ef9525d..8b5b2f6b36d3 100644 --- a/include/linux/slab_def.h +++ b/include/linux/slab_def.h @@ -95,7 +95,7 @@ struct kmem_cache { * pointer for each node since "nodelists" uses the remainder of * available pointers. */ - struct kmem_list3 **nodelists; + struct kmem_cache_node **nodelists; struct array_cache *array[NR_CPUS + MAX_NUMNODES]; /* * Do not add fields after array[] diff --git a/mm/slab.c b/mm/slab.c index 2a7132ec4ff6..7c0da4c86973 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -288,7 +288,7 @@ struct arraycache_init { /* * The slab lists for all objects. */ -struct kmem_list3 { +struct kmem_cache_node { struct list_head slabs_partial; /* partial list first, better asm code */ struct list_head slabs_full; struct list_head slabs_free; @@ -306,13 +306,13 @@ struct kmem_list3 { * Need this for bootstrapping a per node allocator. */ #define NUM_INIT_LISTS (3 * MAX_NUMNODES) -static struct kmem_list3 __initdata initkmem_list3[NUM_INIT_LISTS]; +static struct kmem_cache_node __initdata initkmem_list3[NUM_INIT_LISTS]; #define CACHE_CACHE 0 #define SIZE_AC MAX_NUMNODES #define SIZE_L3 (2 * MAX_NUMNODES) static int drain_freelist(struct kmem_cache *cache, - struct kmem_list3 *l3, int tofree); + struct kmem_cache_node *l3, int tofree); static void free_block(struct kmem_cache *cachep, void **objpp, int len, int node); static int enable_cpucache(struct kmem_cache *cachep, gfp_t gfp); @@ -329,9 +329,9 @@ EXPORT_SYMBOL(kmalloc_dma_caches); static int slab_early_init = 1; #define INDEX_AC kmalloc_index(sizeof(struct arraycache_init)) -#define INDEX_L3 kmalloc_index(sizeof(struct kmem_list3)) +#define INDEX_L3 kmalloc_index(sizeof(struct kmem_cache_node)) -static void kmem_list3_init(struct kmem_list3 *parent) +static void kmem_list3_init(struct kmem_cache_node *parent) { INIT_LIST_HEAD(&parent->slabs_full); INIT_LIST_HEAD(&parent->slabs_partial); @@ -546,7 +546,7 @@ static void slab_set_lock_classes(struct kmem_cache *cachep, int q) { struct array_cache **alc; - struct kmem_list3 *l3; + struct kmem_cache_node *l3; int r; l3 = cachep->nodelists[q]; @@ -591,7 +591,7 @@ static void init_node_lock_keys(int q) return; for (i = 1; i < PAGE_SHIFT + MAX_ORDER; i++) { - struct kmem_list3 *l3; + struct kmem_cache_node *l3; struct kmem_cache *cache = kmalloc_caches[i]; if (!cache) @@ -608,9 +608,8 @@ static void init_node_lock_keys(int q) static void on_slab_lock_classes_node(struct kmem_cache *cachep, int q) { - struct kmem_list3 *l3; - l3 = cachep->nodelists[q]; - if (!l3) + + if (!cachep->nodelists[q]) return; slab_set_lock_classes(cachep, &on_slab_l3_key, @@ -901,7 +900,7 @@ static inline bool is_slab_pfmemalloc(struct slab *slabp) static void recheck_pfmemalloc_active(struct kmem_cache *cachep, struct array_cache *ac) { - struct kmem_list3 *l3 = cachep->nodelists[numa_mem_id()]; + struct kmem_cache_node *l3 = cachep->nodelists[numa_mem_id()]; struct slab *slabp; unsigned long flags; @@ -934,7 +933,7 @@ static void *__ac_get_obj(struct kmem_cache *cachep, struct array_cache *ac, /* Ensure the caller is allowed to use objects from PFMEMALLOC slab */ if (unlikely(is_obj_pfmemalloc(objp))) { - struct kmem_list3 *l3; + struct kmem_cache_node *l3; if (gfp_pfmemalloc_allowed(flags)) { clear_obj_pfmemalloc(&objp); @@ -1106,7 +1105,7 @@ static void free_alien_cache(struct array_cache **ac_ptr) static void __drain_alien_cache(struct kmem_cache *cachep, struct array_cache *ac, int node) { - struct kmem_list3 *rl3 = cachep->nodelists[node]; + struct kmem_cache_node *rl3 = cachep->nodelists[node]; if (ac->avail) { spin_lock(&rl3->list_lock); @@ -1127,7 +1126,7 @@ static void __drain_alien_cache(struct kmem_cache *cachep, /* * Called from cache_reap() to regularly drain alien caches round robin. */ -static void reap_alien(struct kmem_cache *cachep, struct kmem_list3 *l3) +static void reap_alien(struct kmem_cache *cachep, struct kmem_cache_node *l3) { int node = __this_cpu_read(slab_reap_node); @@ -1162,7 +1161,7 @@ static inline int cache_free_alien(struct kmem_cache *cachep, void *objp) { struct slab *slabp = virt_to_slab(objp); int nodeid = slabp->nodeid; - struct kmem_list3 *l3; + struct kmem_cache_node *l3; struct array_cache *alien = NULL; int node; @@ -1207,8 +1206,8 @@ static inline int cache_free_alien(struct kmem_cache *cachep, void *objp) static int init_cache_nodelists_node(int node) { struct kmem_cache *cachep; - struct kmem_list3 *l3; - const int memsize = sizeof(struct kmem_list3); + struct kmem_cache_node *l3; + const int memsize = sizeof(struct kmem_cache_node); list_for_each_entry(cachep, &slab_caches, list) { /* @@ -1244,7 +1243,7 @@ static int init_cache_nodelists_node(int node) static void __cpuinit cpuup_canceled(long cpu) { struct kmem_cache *cachep; - struct kmem_list3 *l3 = NULL; + struct kmem_cache_node *l3 = NULL; int node = cpu_to_mem(cpu); const struct cpumask *mask = cpumask_of_node(node); @@ -1309,7 +1308,7 @@ free_array_cache: static int __cpuinit cpuup_prepare(long cpu) { struct kmem_cache *cachep; - struct kmem_list3 *l3 = NULL; + struct kmem_cache_node *l3 = NULL; int node = cpu_to_mem(cpu); int err; @@ -1463,7 +1462,7 @@ static int __meminit drain_cache_nodelists_node(int node) int ret = 0; list_for_each_entry(cachep, &slab_caches, list) { - struct kmem_list3 *l3; + struct kmem_cache_node *l3; l3 = cachep->nodelists[node]; if (!l3) @@ -1516,15 +1515,15 @@ out: /* * swap the static kmem_list3 with kmalloced memory */ -static void __init init_list(struct kmem_cache *cachep, struct kmem_list3 *list, +static void __init init_list(struct kmem_cache *cachep, struct kmem_cache_node *list, int nodeid) { - struct kmem_list3 *ptr; + struct kmem_cache_node *ptr; - ptr = kmalloc_node(sizeof(struct kmem_list3), GFP_NOWAIT, nodeid); + ptr = kmalloc_node(sizeof(struct kmem_cache_node), GFP_NOWAIT, nodeid); BUG_ON(!ptr); - memcpy(ptr, list, sizeof(struct kmem_list3)); + memcpy(ptr, list, sizeof(struct kmem_cache_node)); /* * Do not assume that spinlocks can be initialized via memcpy: */ @@ -1556,7 +1555,7 @@ static void __init set_up_list3s(struct kmem_cache *cachep, int index) */ static void setup_nodelists_pointer(struct kmem_cache *cachep) { - cachep->nodelists = (struct kmem_list3 **)&cachep->array[nr_cpu_ids]; + cachep->nodelists = (struct kmem_cache_node **)&cachep->array[nr_cpu_ids]; } /* @@ -1613,7 +1612,7 @@ void __init kmem_cache_init(void) */ create_boot_cache(kmem_cache, "kmem_cache", offsetof(struct kmem_cache, array[nr_cpu_ids]) + - nr_node_ids * sizeof(struct kmem_list3 *), + nr_node_ids * sizeof(struct kmem_cache_node *), SLAB_HWCACHE_ALIGN); list_add(&kmem_cache->list, &slab_caches); @@ -1787,7 +1786,7 @@ __initcall(cpucache_init); static noinline void slab_out_of_memory(struct kmem_cache *cachep, gfp_t gfpflags, int nodeid) { - struct kmem_list3 *l3; + struct kmem_cache_node *l3; struct slab *slabp; unsigned long flags; int node; @@ -2279,7 +2278,7 @@ static int __init_refok setup_cpu_cache(struct kmem_cache *cachep, gfp_t gfp) int node; for_each_online_node(node) { cachep->nodelists[node] = - kmalloc_node(sizeof(struct kmem_list3), + kmalloc_node(sizeof(struct kmem_cache_node), gfp, node); BUG_ON(!cachep->nodelists[node]); kmem_list3_init(cachep->nodelists[node]); @@ -2547,7 +2546,7 @@ static void check_spinlock_acquired_node(struct kmem_cache *cachep, int node) #define check_spinlock_acquired_node(x, y) do { } while(0) #endif -static void drain_array(struct kmem_cache *cachep, struct kmem_list3 *l3, +static void drain_array(struct kmem_cache *cachep, struct kmem_cache_node *l3, struct array_cache *ac, int force, int node); @@ -2567,7 +2566,7 @@ static void do_drain(void *arg) static void drain_cpu_caches(struct kmem_cache *cachep) { - struct kmem_list3 *l3; + struct kmem_cache_node *l3; int node; on_each_cpu(do_drain, cachep, 1); @@ -2592,7 +2591,7 @@ static void drain_cpu_caches(struct kmem_cache *cachep) * Returns the actual number of slabs released. */ static int drain_freelist(struct kmem_cache *cache, - struct kmem_list3 *l3, int tofree) + struct kmem_cache_node *l3, int tofree) { struct list_head *p; int nr_freed; @@ -2630,7 +2629,7 @@ out: static int __cache_shrink(struct kmem_cache *cachep) { int ret = 0, i = 0; - struct kmem_list3 *l3; + struct kmem_cache_node *l3; drain_cpu_caches(cachep); @@ -2672,7 +2671,7 @@ EXPORT_SYMBOL(kmem_cache_shrink); int __kmem_cache_shutdown(struct kmem_cache *cachep) { int i; - struct kmem_list3 *l3; + struct kmem_cache_node *l3; int rc = __cache_shrink(cachep); if (rc) @@ -2869,7 +2868,7 @@ static int cache_grow(struct kmem_cache *cachep, struct slab *slabp; size_t offset; gfp_t local_flags; - struct kmem_list3 *l3; + struct kmem_cache_node *l3; /* * Be lazy and only check for valid flags here, keeping it out of the @@ -3059,7 +3058,7 @@ static void *cache_alloc_refill(struct kmem_cache *cachep, gfp_t flags, bool force_refill) { int batchcount; - struct kmem_list3 *l3; + struct kmem_cache_node *l3; struct array_cache *ac; int node; @@ -3391,7 +3390,7 @@ static void *____cache_alloc_node(struct kmem_cache *cachep, gfp_t flags, { struct list_head *entry; struct slab *slabp; - struct kmem_list3 *l3; + struct kmem_cache_node *l3; void *obj; int x; @@ -3586,7 +3585,7 @@ static void free_block(struct kmem_cache *cachep, void **objpp, int nr_objects, int node) { int i; - struct kmem_list3 *l3; + struct kmem_cache_node *l3; for (i = 0; i < nr_objects; i++) { void *objp; @@ -3632,7 +3631,7 @@ static void free_block(struct kmem_cache *cachep, void **objpp, int nr_objects, static void cache_flusharray(struct kmem_cache *cachep, struct array_cache *ac) { int batchcount; - struct kmem_list3 *l3; + struct kmem_cache_node *l3; int node = numa_mem_id(); batchcount = ac->batchcount; @@ -3924,7 +3923,7 @@ EXPORT_SYMBOL(kfree); static int alloc_kmemlist(struct kmem_cache *cachep, gfp_t gfp) { int node; - struct kmem_list3 *l3; + struct kmem_cache_node *l3; struct array_cache *new_shared; struct array_cache **new_alien = NULL; @@ -3969,7 +3968,7 @@ static int alloc_kmemlist(struct kmem_cache *cachep, gfp_t gfp) free_alien_cache(new_alien); continue; } - l3 = kmalloc_node(sizeof(struct kmem_list3), gfp, node); + l3 = kmalloc_node(sizeof(struct kmem_cache_node), gfp, node); if (!l3) { free_alien_cache(new_alien); kfree(new_shared); @@ -4165,7 +4164,7 @@ skip_setup: * necessary. Note that the l3 listlock also protects the array_cache * if drain_array() is used on the shared array. */ -static void drain_array(struct kmem_cache *cachep, struct kmem_list3 *l3, +static void drain_array(struct kmem_cache *cachep, struct kmem_cache_node *l3, struct array_cache *ac, int force, int node) { int tofree; @@ -4204,7 +4203,7 @@ static void drain_array(struct kmem_cache *cachep, struct kmem_list3 *l3, static void cache_reap(struct work_struct *w) { struct kmem_cache *searchp; - struct kmem_list3 *l3; + struct kmem_cache_node *l3; int node = numa_mem_id(); struct delayed_work *work = to_delayed_work(w); @@ -4268,7 +4267,7 @@ void get_slabinfo(struct kmem_cache *cachep, struct slabinfo *sinfo) const char *name; char *error = NULL; int node; - struct kmem_list3 *l3; + struct kmem_cache_node *l3; active_objs = 0; num_slabs = 0; @@ -4482,7 +4481,7 @@ static int leaks_show(struct seq_file *m, void *p) { struct kmem_cache *cachep = list_entry(p, struct kmem_cache, list); struct slab *slabp; - struct kmem_list3 *l3; + struct kmem_cache_node *l3; const char *name; unsigned long *n = m->private; int node;