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slob: sparsemem support

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Currently slob is disabled if we're using sparsemem, due to an earlier
patch from Goto-san.  Slob and static sparsemem work without any trouble as
it is, and the only hiccup is a missing slab_is_available() in the case of
sparsemem extreme.  With this, we're rid of the last set of restrictions
for slob usage.

Signed-off-by: Paul Mundt <[email protected]>
Acked-by: Pekka Enberg <[email protected]>
Acked-by: Matt Mackall <[email protected]>
Cc: Christoph Lameter <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Paul Mundt 2007-07-15 23:38:24 -07:00 • committed by Linus Torvalds
commit 84a01c2f8e
2 changed files with 9 additions and 1 deletions
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8
mm/slob.c
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@ -634,6 +634,14 @@ int kmem_ptr_validate(struct kmem_cache *a, const void *b)
return 0;
}
static unsigned int slob_ready __read_mostly;
int slab_is_available(void)
{
return slob_ready;
}
void __init kmem_cache_init(void)
{
slob_ready = 1;
}