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Memoryless nodes: Slab support

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Slab should not allocate control structures for nodes without memory.  This
may seem to work right now but its unreliable since not all allocations can
fall back due to the use of GFP_THISNODE.

Switching a few for_each_online_node's to N_NORMAL_MEMORY will allow us to
only allocate for nodes that have regular memory.

Signed-off-by: Christoph Lameter <[email protected]>
Acked-by: Nishanth Aravamudan <[email protected]>
Acked-by: Lee Schermerhorn <[email protected]>
Acked-by: Bob Picco <[email protected]>
Cc: KAMEZAWA Hiroyuki <[email protected]>
Cc: Mel Gorman <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Christoph Lameter 2007-10-16 01:25:32 -07:00 • committed by Linus Torvalds
commit 04231b3002
1 changed files with 4 additions and 4 deletions
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8
mm/slab.c
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@ -1568,7 +1568,7 @@ void __init kmem_cache_init(void)
/* Replace the static kmem_list3 structures for the boot cpu */
init_list(&cache_cache, &initkmem_list3[CACHE_CACHE], node);
for_each_online_node(nid) {
for_each_node_state(nid, N_NORMAL_MEMORY) {
init_list(malloc_sizes[INDEX_AC].cs_cachep,
&initkmem_list3[SIZE_AC + nid], nid);
@ -1944,7 +1944,7 @@ static void __init set_up_list3s(struct kmem_cache *cachep, int index)
{
int node;
for_each_online_node(node) {
for_each_node_state(node, N_NORMAL_MEMORY) {
cachep->nodelists[node] = &initkmem_list3[index + node];
cachep->nodelists[node]->next_reap = jiffies +
REAPTIMEOUT_LIST3 +
@ -2075,7 +2075,7 @@ static int __init_refok setup_cpu_cache(struct kmem_cache *cachep)
g_cpucache_up = PARTIAL_L3;
} else {
int node;
for_each_online_node(node) {
for_each_node_state(node, N_NORMAL_MEMORY) {
cachep->nodelists[node] =
kmalloc_node(sizeof(struct kmem_list3),
GFP_KERNEL, node);
@ -3792,7 +3792,7 @@ static int alloc_kmemlist(struct kmem_cache *cachep)
struct array_cache *new_shared;
struct array_cache **new_alien = NULL;
for_each_online_node(node) {
for_each_node_state(node, N_NORMAL_MEMORY) {
if (use_alien_caches) {
new_alien = alloc_alien_cache(node, cachep->limit);