redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

slub: Remove static kmem_cache_cpu array for boot 

The percpu allocator can now handle allocations during early boot.
So drop the static kmem_cache_cpu array.

Cc: Tejun Heo <tj@kernel.org>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
hifive-unleashed-5.1
Christoph Lameter 2010-08-20 12:37:14 -05:00 committed by Pekka Enberg
parent 55136592fe
commit 6c182dc0de
1 changed files with 4 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
mm/slub.c
View File

@ -2062,23 +2062,14 @@ init_kmem_cache_node(struct kmem_cache_node *n, struct kmem_cache *s)
#endif #endif
} }
static DEFINE_PER_CPU(struct kmem_cache_cpu, kmalloc_percpu[KMALLOC_CACHES]);
static inline int alloc_kmem_cache_cpus(struct kmem_cache *s) static inline int alloc_kmem_cache_cpus(struct kmem_cache *s)
{ {
if (s < kmalloc_caches + KMALLOC_CACHES && s >= kmalloc_caches) BUILD_BUG_ON(PERCPU_DYNAMIC_EARLY_SIZE <
/* SLUB_PAGE_SHIFT * sizeof(struct kmem_cache_cpu));
* Boot time creation of the kmalloc array. Use static per cpu data
* since the per cpu allocator is not available yet.
*/
s->cpu_slab = kmalloc_percpu + (s - kmalloc_caches);
else
s->cpu_slab = alloc_percpu(struct kmem_cache_cpu);
if (!s->cpu_slab) s->cpu_slab = alloc_percpu(struct kmem_cache_cpu);
return 0;
return 1; return s->cpu_slab != NULL;
} }
#ifdef CONFIG_NUMA #ifdef CONFIG_NUMA