AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

dma kmalloc handling fixes

Browse Source 
1. We need kmalloc_percpu for all of the now extended kmalloc caches
   array not just for each shift value.

2. init_kmem_cache_nodes() must assume node 0 locality for statically
   allocated dma kmem_cache structures even after boot is complete.

Reported-and-tested-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
This commit is contained in:
Christoph Lameter 2010-01-21 17:43:35 -06:00 committed by Pekka Enberg
parent 7738dd9e8f
commit 91efd773c7
1 changed files with 3 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
mm/slub.c
View File

@ -2062,7 +2062,7 @@ init_kmem_cache_node(struct kmem_cache_node *n, struct kmem_cache *s)
#endif
}
static DEFINE_PER_CPU(struct kmem_cache_cpu, kmalloc_percpu[SLUB_PAGE_SHIFT]);
static DEFINE_PER_CPU(struct kmem_cache_cpu, kmalloc_percpu[KMALLOC_CACHES]);
static inline int alloc_kmem_cache_cpus(struct kmem_cache *s, gfp_t flags)
{
@ -2148,7 +2148,8 @@ static int init_kmem_cache_nodes(struct kmem_cache *s, gfp_t gfpflags)
int node;
int local_node;
if (slab_state >= UP)
if (slab_state >= UP && (s < kmalloc_caches ||
s > kmalloc_caches + KMALLOC_CACHES))
local_node = page_to_nid(virt_to_page(s));
else
local_node = 0;