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mm, sl[aou]b: Common definition for boot state of the slab allocators

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All allocators have some sort of support for the bootstrap status.

Setup a common definition for the boot states and make all slab
allocators use that definition.

Reviewed-by: Glauber Costa <[email protected]>
Reviewed-by: Joonsoo Kim <[email protected]>
Signed-off-by: Christoph Lameter <[email protected]>
Signed-off-by: Pekka Enberg <[email protected]>
This commit is contained in:
Christoph Lameter 2012-07-06 15:25:11 -05:00 • committed by Pekka Enberg
commit 97d0660915
6 changed files with 62 additions and 60 deletions
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14
mm/slob.c
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@ -59,6 +59,8 @@
#include <linux/kernel.h>
#include <linux/slab.h>
#include "slab.h"
#include <linux/mm.h>
#include <linux/swap.h> /* struct reclaim_state */
#include <linux/cache.h>
@ -531,6 +533,7 @@ struct kmem_cache *__kmem_cache_create(const char *name, size_t size,
c->align = align;
kmemleak_alloc(c, sizeof(struct kmem_cache), 1, GFP_KERNEL);
c->refcount = 1;
}
return c;
}
@ -616,19 +619,12 @@ int kmem_cache_shrink(struct kmem_cache *d)
}
EXPORT_SYMBOL(kmem_cache_shrink);
static unsigned int slob_ready __read_mostly;
int slab_is_available(void)
{
return slob_ready;
}
void __init kmem_cache_init(void)
{
slob_ready = 1;
slab_state = UP;
}
void __init kmem_cache_init_late(void)
{
/* Nothing to do */
slab_state = FULL;
}