[PATCH] slab: rename ac_data to cpu_cache_get

Rename the ac_data() function to more descriptive cpu_cache_get().

Acked-by: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 18 insertions, 18 deletions

diff --git a/mm/slab.c b/mm/slab.c
index c2f9e0a330ff..b19093864998 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -679,7 +679,7 @@ static void enable_cpucache(kmem_cache_t *cachep);
 static void cache_reap(void *unused);
 static int __node_shrink(kmem_cache_t *cachep, int node);
 
-static inline struct array_cache *ac_data(kmem_cache_t *cachep)
+static inline struct array_cache *cpu_cache_get(kmem_cache_t *cachep)
 {
         return cachep->array[smp_processor_id()];
 }
@@ -1186,8 +1186,8 @@ void __init kmem_cache_init(void)
                 ptr = kmalloc(sizeof(struct arraycache_init), GFP_KERNEL);
 
                 local_irq_disable();
-                BUG_ON(ac_data(&cache_cache) != &initarray_cache.cache);
-                memcpy(ptr, ac_data(&cache_cache),
+                BUG_ON(cpu_cache_get(&cache_cache) != &initarray_cache.cache);
+                memcpy(ptr, cpu_cache_get(&cache_cache),
                        sizeof(struct arraycache_init));
                 cache_cache.array[smp_processor_id()] = ptr;
                 local_irq_enable();
@@ -1195,9 +1195,9 @@ void __init kmem_cache_init(void)
                 ptr = kmalloc(sizeof(struct arraycache_init), GFP_KERNEL);
 
                 local_irq_disable();
-                BUG_ON(ac_data(malloc_sizes[INDEX_AC].cs_cachep)
+                BUG_ON(cpu_cache_get(malloc_sizes[INDEX_AC].cs_cachep)
                        != &initarray_generic.cache);
-                memcpy(ptr, ac_data(malloc_sizes[INDEX_AC].cs_cachep),
+                memcpy(ptr, cpu_cache_get(malloc_sizes[INDEX_AC].cs_cachep),
                        sizeof(struct arraycache_init));
                 malloc_sizes[INDEX_AC].cs_cachep->array[smp_processor_id()] =
                     ptr;
@@ -1235,7 +1235,7 @@ void __init kmem_cache_init(void)
         g_cpucache_up = FULL;
 
         /* Register a cpu startup notifier callback
-         * that initializes ac_data for all new cpus
+         * that initializes cpu_cache_get for all new cpus
          */
         register_cpu_notifier(&cpucache_notifier);
 
@@ -1909,11 +1909,11 @@ kmem_cache_create (const char *name, size_t size, size_t align,
                     jiffies + REAPTIMEOUT_LIST3 +
                     ((unsigned long)cachep) % REAPTIMEOUT_LIST3;
 
-                BUG_ON(!ac_data(cachep));
-                ac_data(cachep)->avail = 0;
-                ac_data(cachep)->limit = BOOT_CPUCACHE_ENTRIES;
-                ac_data(cachep)->batchcount = 1;
-                ac_data(cachep)->touched = 0;
+                BUG_ON(!cpu_cache_get(cachep));
+                cpu_cache_get(cachep)->avail = 0;
+                cpu_cache_get(cachep)->limit = BOOT_CPUCACHE_ENTRIES;
+                cpu_cache_get(cachep)->batchcount = 1;
+                cpu_cache_get(cachep)->touched = 0;
                 cachep->batchcount = 1;
                 cachep->limit = BOOT_CPUCACHE_ENTRIES;
         }
@@ -1992,7 +1992,7 @@ static void do_drain(void *arg)
         int node = numa_node_id();
 
         check_irq_off();
-        ac = ac_data(cachep);
+        ac = cpu_cache_get(cachep);
         spin_lock(&cachep->nodelists[node]->list_lock);
         free_block(cachep, ac->entry, ac->avail, node);
         spin_unlock(&cachep->nodelists[node]->list_lock);
@@ -2518,7 +2518,7 @@ static void *cache_alloc_refill(kmem_cache_t *cachep, gfp_t flags)
         struct array_cache *ac;
 
         check_irq_off();
-        ac = ac_data(cachep);
+        ac = cpu_cache_get(cachep);
       retry:
         batchcount = ac->batchcount;
         if (!ac->touched && batchcount > BATCHREFILL_LIMIT) {
@@ -2590,7 +2590,7 @@ static void *cache_alloc_refill(kmem_cache_t *cachep, gfp_t flags)
                 x = cache_grow(cachep, flags, numa_node_id());
 
                 // cache_grow can reenable interrupts, then ac could change.
-                ac = ac_data(cachep);
+                ac = cpu_cache_get(cachep);
                 if (!x && ac->avail == 0)       // no objects in sight? abort
                         return NULL;
 
@@ -2675,7 +2675,7 @@ static inline void *____cache_alloc(kmem_cache_t *cachep, gfp_t flags)
 #endif
 
         check_irq_off();
-        ac = ac_data(cachep);
+        ac = cpu_cache_get(cachep);
         if (likely(ac->avail)) {
                 STATS_INC_ALLOCHIT(cachep);
                 ac->touched = 1;
@@ -2868,7 +2868,7 @@ static void cache_flusharray(kmem_cache_t *cachep, struct array_cache *ac)
  */
 static inline void __cache_free(kmem_cache_t *cachep, void *objp)
 {
-        struct array_cache *ac = ac_data(cachep);
+        struct array_cache *ac = cpu_cache_get(cachep);
 
         check_irq_off();
         objp = cache_free_debugcheck(cachep, objp, __builtin_return_address(0));
@@ -3253,7 +3253,7 @@ static void do_ccupdate_local(void *info)
         struct array_cache *old;
 
         check_irq_off();
-        old = ac_data(new->cachep);
+        old = cpu_cache_get(new->cachep);
 
         new->cachep->array[smp_processor_id()] = new->new[smp_processor_id()];
         new->new[smp_processor_id()] = old;
@@ -3419,7 +3419,7 @@ static void cache_reap(void *unused)
                         drain_alien_cache(searchp, l3);
                 spin_lock_irq(&l3->list_lock);
 
-                drain_array_locked(searchp, ac_data(searchp), 0,
+                drain_array_locked(searchp, cpu_cache_get(searchp), 0,
                                    numa_node_id());
 
                 if (time_after(l3->next_reap, jiffies))