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mm: Extend gfp masking to the page allocator

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The page allocator also needs the masking of gfp flags during boot,
so this moves it out of slab/slub and uses it with the page allocator
as well.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Benjamin Herrenschmidt
2009-06-18 13:24:12 +10:00
committed by Linus Torvalds
parent 9729a6eb58
commit dcce284a25
5 changed files with 18 additions and 25 deletions
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9
include/linux/gfp.h
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@@ -99,7 +99,7 @@ struct vm_area_struct;
__GFP_NORETRY|__GFP_NOMEMALLOC)
/* Control slab gfp mask during early boot */
#define SLAB_GFP_BOOT_MASK __GFP_BITS_MASK & ~(__GFP_WAIT|__GFP_IO|__GFP_FS)
#define GFP_BOOT_MASK __GFP_BITS_MASK & ~(__GFP_WAIT|__GFP_IO|__GFP_FS)
/* Control allocation constraints */
#define GFP_CONSTRAINT_MASK (__GFP_HARDWALL|__GFP_THISNODE)
@@ -348,4 +348,11 @@ static inline void oom_killer_enable(void)
oom_killer_disabled = false;
}
extern gfp_t gfp_allowed_mask;
static inline void set_gfp_allowed_mask(gfp_t mask)
{
gfp_allowed_mask = mask;
}
#endif /* __LINUX_GFP_H */