Have a common naming between both slab caches for future changes.
Acked-by: Glauber Costa <glommer@xxxxxxxxxxxxx>
Signed-off-by: Christoph Lameter <cl@xxxxxxxxx>
Index: linux/include/linux/slab_def.h
===================================================================
--- linux.orig/include/linux/slab_def.h 2013-01-10 09:54:20.000000000 -0600
+++ linux/include/linux/slab_def.h 2013-01-10 09:55:19.361259174 -0600
@@ -95,7 +95,7 @@ struct kmem_cache {
* pointer for each node since "nodelists" uses the remainder of
* available pointers.
*/
- struct kmem_cache_node **nodelists;
+ struct kmem_cache_node **node;
struct array_cache *array[NR_CPUS + MAX_NUMNODES];
/*
* Do not add fields after array[]
Index: linux/mm/slab.c
===================================================================
--- linux.orig/mm/slab.c 2013-01-10 09:55:04.000000000 -0600
+++ linux/mm/slab.c 2013-01-10 09:55:37.345542937 -0600
@@ -347,7 +347,7 @@ static void kmem_list3_init(struct kmem_
#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
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(st
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_ca
* 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 arra
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(struc
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(struc
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
* 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
* 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(lon
/* 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
* 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
}
}
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 __cpuinitda
*
* 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_nodelis
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_callbac
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
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
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
/*
* 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 *ca
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(
} 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 *
else
gfp = GFP_NOWAIT;
- setup_nodelists_pointer(cachep);
+ setup_node_pointer(cachep);
#if DEBUG
/*
@@ -2527,7 +2526,7 @@ static void check_spinlock_acquired(stru
{
#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
{
#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
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_ca
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_ca
/* 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
/* 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
/*
* 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
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 *cache
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
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
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_ca
}
}
- 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_ca
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 kme
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_struc
* 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 *cac
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
n[1] = 0;
for_each_online_node(node) {
- l3 = cachep->nodelists[node];
+ l3 = cachep->node[node];
if (!l3)
continue;
--
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