slab: Rename nodelists to node

Have a common naming between both slab caches for future changes.

Acked-by: Glauber Costa <glommer@parallels.com>
Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>

1 files changed, 67 insertions, 68 deletions

diff --git a/mm/slab.c b/mm/slab.c
index 7c0da4c86973..3416f4c544b3 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -347,7 +347,7 @@ static void kmem_list3_init(struct kmem_cache_node *parent)
 #define MAKE_LIST(cachep, listp, slab, nodeid)                          \
         do {                                                            \
                 INIT_LIST_HEAD(listp);                                  \
-                list_splice(&(cachep->nodelists[nodeid]->slab), listp); \
+                list_splice(&(cachep->node[nodeid]->slab), listp);      \
         } while (0)
 
 #define MAKE_ALL_LISTS(cachep, ptr, nodeid)                             \
@@ -549,7 +549,7 @@ static void slab_set_lock_classes(struct kmem_cache *cachep,
         struct kmem_cache_node *l3;
         int r;
 
-        l3 = cachep->nodelists[q];
+        l3 = cachep->node[q];
         if (!l3)
                 return;
 
@@ -597,7 +597,7 @@ static void init_node_lock_keys(int q)
                 if (!cache)
                         continue;
 
-                l3 = cache->nodelists[q];
+                l3 = cache->node[q];
                 if (!l3 || OFF_SLAB(cache))
                         continue;
 
@@ -608,8 +608,7 @@ static void init_node_lock_keys(int q)
 
 static void on_slab_lock_classes_node(struct kmem_cache *cachep, int q)
 {
-
-        if (!cachep->nodelists[q])
+        if (!cachep->node[q])
                 return;
 
         slab_set_lock_classes(cachep, &on_slab_l3_key,
@@ -900,7 +899,7 @@ static inline bool is_slab_pfmemalloc(struct slab *slabp)
 static void recheck_pfmemalloc_active(struct kmem_cache *cachep,
                                                 struct array_cache *ac)
 {
-        struct kmem_cache_node *l3 = cachep->nodelists[numa_mem_id()];
+        struct kmem_cache_node *l3 = cachep->node[numa_mem_id()];
         struct slab *slabp;
         unsigned long flags;
 
@@ -955,7 +954,7 @@ static void *__ac_get_obj(struct kmem_cache *cachep, struct array_cache *ac,
                  * If there are empty slabs on the slabs_free list and we are
                  * being forced to refill the cache, mark this one !pfmemalloc.
                  */
-                l3 = cachep->nodelists[numa_mem_id()];
+                l3 = cachep->node[numa_mem_id()];
                 if (!list_empty(&l3->slabs_free) && force_refill) {
                         struct slab *slabp = virt_to_slab(objp);
                         ClearPageSlabPfmemalloc(virt_to_head_page(slabp->s_mem));
@@ -1105,7 +1104,7 @@ 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_cache_node *rl3 = cachep->nodelists[node];
+        struct kmem_cache_node *rl3 = cachep->node[node];
 
         if (ac->avail) {
                 spin_lock(&rl3->list_lock);
@@ -1174,7 +1173,7 @@ static inline int cache_free_alien(struct kmem_cache *cachep, void *objp)
         if (likely(slabp->nodeid == node))
                 return 0;
 
-        l3 = cachep->nodelists[node];
+        l3 = cachep->node[node];
         STATS_INC_NODEFREES(cachep);
         if (l3->alien && l3->alien[nodeid]) {
                 alien = l3->alien[nodeid];
@@ -1186,24 +1185,24 @@ static inline int cache_free_alien(struct kmem_cache *cachep, void *objp)
                 ac_put_obj(cachep, alien, objp);
                 spin_unlock(&alien->lock);
         } else {
-                spin_lock(&(cachep->nodelists[nodeid])->list_lock);
+                spin_lock(&(cachep->node[nodeid])->list_lock);
                 free_block(cachep, &objp, 1, nodeid);
-                spin_unlock(&(cachep->nodelists[nodeid])->list_lock);
+                spin_unlock(&(cachep->node[nodeid])->list_lock);
         }
         return 1;
 }
 #endif
 
 /*
- * Allocates and initializes nodelists for a node on each slab cache, used for
+ * Allocates and initializes node for a node on each slab cache, used for
  * either memory or cpu hotplug.  If memory is being hot-added, the kmem_list3
  * will be allocated off-node since memory is not yet online for the new node.
- * When hotplugging memory or a cpu, existing nodelists are not replaced if
+ * When hotplugging memory or a cpu, existing node are not replaced if
  * already in use.
  *
  * Must hold slab_mutex.
  */
-static int init_cache_nodelists_node(int node)
+static int init_cache_node_node(int node)
 {
         struct kmem_cache *cachep;
         struct kmem_cache_node *l3;
@@ -1215,7 +1214,7 @@ static int init_cache_nodelists_node(int node)
                  * begin anything. Make sure some other cpu on this
                  * node has not already allocated this
                  */
-                if (!cachep->nodelists[node]) {
+                if (!cachep->node[node]) {
                         l3 = kmalloc_node(memsize, GFP_KERNEL, node);
                         if (!l3)
                                 return -ENOMEM;
@@ -1228,14 +1227,14 @@ static int init_cache_nodelists_node(int node)
                          * go.  slab_mutex is sufficient
                          * protection here.
                          */
-                        cachep->nodelists[node] = l3;
+                        cachep->node[node] = l3;
                 }
 
-                spin_lock_irq(&cachep->nodelists[node]->list_lock);
-                cachep->nodelists[node]->free_limit =
+                spin_lock_irq(&cachep->node[node]->list_lock);
+                cachep->node[node]->free_limit =
                         (1 + nr_cpus_node(node)) *
                         cachep->batchcount + cachep->num;
-                spin_unlock_irq(&cachep->nodelists[node]->list_lock);
+                spin_unlock_irq(&cachep->node[node]->list_lock);
         }
         return 0;
 }
@@ -1255,7 +1254,7 @@ static void __cpuinit cpuup_canceled(long cpu)
                 /* cpu is dead; no one can alloc from it. */
                 nc = cachep->array[cpu];
                 cachep->array[cpu] = NULL;
-                l3 = cachep->nodelists[node];
+                l3 = cachep->node[node];
 
                 if (!l3)
                         goto free_array_cache;
@@ -1298,7 +1297,7 @@ free_array_cache:
          * shrink each nodelist to its limit.
          */
         list_for_each_entry(cachep, &slab_caches, list) {
-                l3 = cachep->nodelists[node];
+                l3 = cachep->node[node];
                 if (!l3)
                         continue;
                 drain_freelist(cachep, l3, l3->free_objects);
@@ -1318,7 +1317,7 @@ static int __cpuinit cpuup_prepare(long cpu)
          * kmalloc_node allows us to add the slab to the right
          * kmem_list3 and not this cpu's kmem_list3
          */
-        err = init_cache_nodelists_node(node);
+        err = init_cache_node_node(node);
         if (err < 0)
                 goto bad;
 
@@ -1353,7 +1352,7 @@ static int __cpuinit cpuup_prepare(long cpu)
                         }
                 }
                 cachep->array[cpu] = nc;
-                l3 = cachep->nodelists[node];
+                l3 = cachep->node[node];
                 BUG_ON(!l3);
 
                 spin_lock_irq(&l3->list_lock);
@@ -1456,7 +1455,7 @@ static struct notifier_block __cpuinitdata cpucache_notifier = {
  *
  * Must hold slab_mutex.
  */
-static int __meminit drain_cache_nodelists_node(int node)
+static int __meminit drain_cache_node_node(int node)
 {
         struct kmem_cache *cachep;
         int ret = 0;
@@ -1464,7 +1463,7 @@ static int __meminit drain_cache_nodelists_node(int node)
         list_for_each_entry(cachep, &slab_caches, list) {
                 struct kmem_cache_node *l3;
 
-                l3 = cachep->nodelists[node];
+                l3 = cachep->node[node];
                 if (!l3)
                         continue;
 
@@ -1493,12 +1492,12 @@ static int __meminit slab_memory_callback(struct notifier_block *self,
         switch (action) {
         case MEM_GOING_ONLINE:
                 mutex_lock(&slab_mutex);
-                ret = init_cache_nodelists_node(nid);
+                ret = init_cache_node_node(nid);
                 mutex_unlock(&slab_mutex);
                 break;
         case MEM_GOING_OFFLINE:
                 mutex_lock(&slab_mutex);
-                ret = drain_cache_nodelists_node(nid);
+                ret = drain_cache_node_node(nid);
                 mutex_unlock(&slab_mutex);
                 break;
         case MEM_ONLINE:
@@ -1530,7 +1529,7 @@ static void __init init_list(struct kmem_cache *cachep, struct kmem_cache_node *
         spin_lock_init(&ptr->list_lock);
 
         MAKE_ALL_LISTS(cachep, ptr, nodeid);
-        cachep->nodelists[nodeid] = ptr;
+        cachep->node[nodeid] = ptr;
 }
 
 /*
@@ -1542,8 +1541,8 @@ static void __init set_up_list3s(struct kmem_cache *cachep, int index)
         int node;
 
         for_each_online_node(node) {
-                cachep->nodelists[node] = &initkmem_list3[index + node];
-                cachep->nodelists[node]->next_reap = jiffies +
+                cachep->node[node] = &initkmem_list3[index + node];
+                cachep->node[node]->next_reap = jiffies +
                     REAPTIMEOUT_LIST3 +
                     ((unsigned long)cachep) % REAPTIMEOUT_LIST3;
         }
@@ -1551,11 +1550,11 @@ static void __init set_up_list3s(struct kmem_cache *cachep, int index)
 
 /*
  * The memory after the last cpu cache pointer is used for the
- * the nodelists pointer.
+ * the node pointer.
  */
-static void setup_nodelists_pointer(struct kmem_cache *cachep)
+static void setup_node_pointer(struct kmem_cache *cachep)
 {
-        cachep->nodelists = (struct kmem_cache_node **)&cachep->array[nr_cpu_ids];
+        cachep->node = (struct kmem_cache_node **)&cachep->array[nr_cpu_ids];
 }
 
 /*
@@ -1567,7 +1566,7 @@ void __init kmem_cache_init(void)
         int i;
 
         kmem_cache = &kmem_cache_boot;
-        setup_nodelists_pointer(kmem_cache);
+        setup_node_pointer(kmem_cache);
 
         if (num_possible_nodes() == 1)
                 use_alien_caches = 0;
@@ -1756,7 +1755,7 @@ void __init kmem_cache_init_late(void)
 #ifdef CONFIG_NUMA
         /*
          * Register a memory hotplug callback that initializes and frees
-         * nodelists.
+         * node.
          */
         hotplug_memory_notifier(slab_memory_callback, SLAB_CALLBACK_PRI);
 #endif
@@ -1801,7 +1800,7 @@ slab_out_of_memory(struct kmem_cache *cachep, gfp_t gfpflags, int nodeid)
                 unsigned long active_objs = 0, num_objs = 0, free_objects = 0;
                 unsigned long active_slabs = 0, num_slabs = 0;
 
-                l3 = cachep->nodelists[node];
+                l3 = cachep->node[node];
                 if (!l3)
                         continue;
 
@@ -2277,15 +2276,15 @@ static int __init_refok setup_cpu_cache(struct kmem_cache *cachep, gfp_t gfp)
                 } else {
                         int node;
                         for_each_online_node(node) {
-                                cachep->nodelists[node] =
+                                cachep->node[node] =
                                     kmalloc_node(sizeof(struct kmem_cache_node),
                                                 gfp, node);
-                                BUG_ON(!cachep->nodelists[node]);
-                                kmem_list3_init(cachep->nodelists[node]);
+                                BUG_ON(!cachep->node[node]);
+                                kmem_list3_init(cachep->node[node]);
                         }
                 }
         }
-        cachep->nodelists[numa_mem_id()]->next_reap =
+        cachep->node[numa_mem_id()]->next_reap =
                         jiffies + REAPTIMEOUT_LIST3 +
                         ((unsigned long)cachep) % REAPTIMEOUT_LIST3;
 
@@ -2388,7 +2387,7 @@ __kmem_cache_create (struct kmem_cache *cachep, unsigned long flags)
         else
                 gfp = GFP_NOWAIT;
 
-        setup_nodelists_pointer(cachep);
+        setup_node_pointer(cachep);
 #if DEBUG
 
         /*
@@ -2527,7 +2526,7 @@ static void check_spinlock_acquired(struct kmem_cache *cachep)
 {
 #ifdef CONFIG_SMP
         check_irq_off();
-        assert_spin_locked(&cachep->nodelists[numa_mem_id()]->list_lock);
+        assert_spin_locked(&cachep->node[numa_mem_id()]->list_lock);
 #endif
 }
 
@@ -2535,7 +2534,7 @@ static void check_spinlock_acquired_node(struct kmem_cache *cachep, int node)
 {
 #ifdef CONFIG_SMP
         check_irq_off();
-        assert_spin_locked(&cachep->nodelists[node]->list_lock);
+        assert_spin_locked(&cachep->node[node]->list_lock);
 #endif
 }
 
@@ -2558,9 +2557,9 @@ static void do_drain(void *arg)
 
         check_irq_off();
         ac = cpu_cache_get(cachep);
-        spin_lock(&cachep->nodelists[node]->list_lock);
+        spin_lock(&cachep->node[node]->list_lock);
         free_block(cachep, ac->entry, ac->avail, node);
-        spin_unlock(&cachep->nodelists[node]->list_lock);
+        spin_unlock(&cachep->node[node]->list_lock);
         ac->avail = 0;
 }
 
@@ -2572,13 +2571,13 @@ static void drain_cpu_caches(struct kmem_cache *cachep)
         on_each_cpu(do_drain, cachep, 1);
         check_irq_on();
         for_each_online_node(node) {
-                l3 = cachep->nodelists[node];
+                l3 = cachep->node[node];
                 if (l3 && l3->alien)
                         drain_alien_cache(cachep, l3->alien);
         }
 
         for_each_online_node(node) {
-                l3 = cachep->nodelists[node];
+                l3 = cachep->node[node];
                 if (l3)
                         drain_array(cachep, l3, l3->shared, 1, node);
         }
@@ -2635,7 +2634,7 @@ static int __cache_shrink(struct kmem_cache *cachep)
 
         check_irq_on();
         for_each_online_node(i) {
-                l3 = cachep->nodelists[i];
+                l3 = cachep->node[i];
                 if (!l3)
                         continue;
 
@@ -2682,7 +2681,7 @@ int __kmem_cache_shutdown(struct kmem_cache *cachep)
 
         /* NUMA: free the list3 structures */
         for_each_online_node(i) {
-                l3 = cachep->nodelists[i];
+                l3 = cachep->node[i];
                 if (l3) {
                         kfree(l3->shared);
                         free_alien_cache(l3->alien);
@@ -2879,7 +2878,7 @@ static int cache_grow(struct kmem_cache *cachep,
 
         /* Take the l3 list lock to change the colour_next on this node */
         check_irq_off();
-        l3 = cachep->nodelists[nodeid];
+        l3 = cachep->node[nodeid];
         spin_lock(&l3->list_lock);
 
         /* Get colour for the slab, and cal the next value. */
@@ -3077,7 +3076,7 @@ retry:
                  */
                 batchcount = BATCHREFILL_LIMIT;
         }
-        l3 = cachep->nodelists[node];
+        l3 = cachep->node[node];
 
         BUG_ON(ac->avail > 0 || !l3);
         spin_lock(&l3->list_lock);
@@ -3299,7 +3298,7 @@ static void *alternate_node_alloc(struct kmem_cache *cachep, gfp_t flags)
 /*
  * Fallback function if there was no memory available and no objects on a
  * certain node and fall back is permitted. First we scan all the
- * available nodelists for available objects. If that fails then we
+ * available node for available objects. If that fails then we
  * perform an allocation without specifying a node. This allows the page
  * allocator to do its reclaim / fallback magic. We then insert the
  * slab into the proper nodelist and then allocate from it.
@@ -3333,8 +3332,8 @@ retry:
                 nid = zone_to_nid(zone);
 
                 if (cpuset_zone_allowed_hardwall(zone, flags) &&
-                        cache->nodelists[nid] &&
-                        cache->nodelists[nid]->free_objects) {
+                        cache->node[nid] &&
+                        cache->node[nid]->free_objects) {
                                 obj = ____cache_alloc_node(cache,
                                         flags | GFP_THISNODE, nid);
                                 if (obj)
@@ -3394,7 +3393,7 @@ static void *____cache_alloc_node(struct kmem_cache *cachep, gfp_t flags,
         void *obj;
         int x;
 
-        l3 = cachep->nodelists[nodeid];
+        l3 = cachep->node[nodeid];
         BUG_ON(!l3);
 
 retry:
@@ -3479,7 +3478,7 @@ slab_alloc_node(struct kmem_cache *cachep, gfp_t flags, int nodeid,
         if (nodeid == NUMA_NO_NODE)
                 nodeid = slab_node;
 
-        if (unlikely(!cachep->nodelists[nodeid])) {
+        if (unlikely(!cachep->node[nodeid])) {
                 /* Node not bootstrapped yet */
                 ptr = fallback_alloc(cachep, flags);
                 goto out;
@@ -3595,7 +3594,7 @@ static void free_block(struct kmem_cache *cachep, void **objpp, int nr_objects,
                 objp = objpp[i];
 
                 slabp = virt_to_slab(objp);
-                l3 = cachep->nodelists[node];
+                l3 = cachep->node[node];
                 list_del(&slabp->list);
                 check_spinlock_acquired_node(cachep, node);
                 check_slabp(cachep, slabp);
@@ -3639,7 +3638,7 @@ static void cache_flusharray(struct kmem_cache *cachep, struct array_cache *ac)
         BUG_ON(!batchcount || batchcount > ac->avail);
 #endif
         check_irq_off();
-        l3 = cachep->nodelists[node];
+        l3 = cachep->node[node];
         spin_lock(&l3->list_lock);
         if (l3->shared) {
                 struct array_cache *shared_array = l3->shared;
@@ -3946,7 +3945,7 @@ static int alloc_kmemlist(struct kmem_cache *cachep, gfp_t gfp)
                         }
                 }
 
-                l3 = cachep->nodelists[node];
+                l3 = cachep->node[node];
                 if (l3) {
                         struct array_cache *shared = l3->shared;
 
@@ -3982,7 +3981,7 @@ static int alloc_kmemlist(struct kmem_cache *cachep, gfp_t gfp)
                 l3->alien = new_alien;
                 l3->free_limit = (1 + nr_cpus_node(node)) *
                                         cachep->batchcount + cachep->num;
-                cachep->nodelists[node] = l3;
+                cachep->node[node] = l3;
         }
         return 0;
 
@@ -3991,13 +3990,13 @@ fail:
                 /* Cache is not active yet. Roll back what we did */
                 node--;
                 while (node >= 0) {
-                        if (cachep->nodelists[node]) {
-                                l3 = cachep->nodelists[node];
+                        if (cachep->node[node]) {
+                                l3 = cachep->node[node];
 
                                 kfree(l3->shared);
                                 free_alien_cache(l3->alien);
                                 kfree(l3);
-                                cachep->nodelists[node] = NULL;
+                                cachep->node[node] = NULL;
                         }
                         node--;
                 }
@@ -4057,9 +4056,9 @@ static int __do_tune_cpucache(struct kmem_cache *cachep, int limit,
                 struct array_cache *ccold = new->new[i];
                 if (!ccold)
                         continue;
-                spin_lock_irq(&cachep->nodelists[cpu_to_mem(i)]->list_lock);
+                spin_lock_irq(&cachep->node[cpu_to_mem(i)]->list_lock);
                 free_block(cachep, ccold->entry, ccold->avail, cpu_to_mem(i));
-                spin_unlock_irq(&cachep->nodelists[cpu_to_mem(i)]->list_lock);
+                spin_unlock_irq(&cachep->node[cpu_to_mem(i)]->list_lock);
                 kfree(ccold);
         }
         kfree(new);
@@ -4219,7 +4218,7 @@ static void cache_reap(struct work_struct *w)
                  * have established with reasonable certainty that
                  * we can do some work if the lock was obtained.
                  */
-                l3 = searchp->nodelists[node];
+                l3 = searchp->node[node];
 
                 reap_alien(searchp, l3);
 
@@ -4272,7 +4271,7 @@ void get_slabinfo(struct kmem_cache *cachep, struct slabinfo *sinfo)
         active_objs = 0;
         num_slabs = 0;
         for_each_online_node(node) {
-                l3 = cachep->nodelists[node];
+                l3 = cachep->node[node];
                 if (!l3)
                         continue;
 
@@ -4497,7 +4496,7 @@ static int leaks_show(struct seq_file *m, void *p)
         n[1] = 0;
 
         for_each_online_node(node) {
-                l3 = cachep->nodelists[node];
+                l3 = cachep->node[node];
                 if (!l3)
                         continue;