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mm: bootmem: split out goal-to-node mapping from goal dropping 

Matching the desired goal to the right node is one thing, dropping the
goal when it can not be satisfied is another.  Split this into separate
functions so that subsequent patches can use the node-finding but drop and
handle the goal fallback on their own terms.

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Tejun Heo <tj@kernel.org>
Acked-by: David S. Miller <davem@davemloft.net>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Johannes Weiner 2012-05-29 15:06:33 -07:00 committed by Linus Torvalds
parent c6785b6bf1
commit c12ab504aa
1 changed files with 15 additions and 2 deletions
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17
mm/bootmem.c
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@ -596,7 +596,7 @@ static void * __init alloc_arch_preferred_bootmem(bootmem_data_t *bdata,
return NULL;
}
static void * __init ___alloc_bootmem_nopanic(unsigned long size,
static void * __init alloc_bootmem_core(unsigned long size,
unsigned long align,
unsigned long goal,
unsigned long limit)
@ -604,7 +604,6 @@ static void * __init ___alloc_bootmem_nopanic(unsigned long size,
bootmem_data_t *bdata;
void *region;
restart:
region = alloc_arch_preferred_bootmem(NULL, size, align, goal, limit);
if (region)
return region;
@ -620,6 +619,20 @@ restart:
return region;
}
return NULL;
}
static void * __init ___alloc_bootmem_nopanic(unsigned long size,
unsigned long align,
unsigned long goal,
unsigned long limit)
{
void *ptr;
restart:
ptr = alloc_bootmem_core(size, align, goal, limit);
if (ptr)
return ptr;
if (goal) {
goal = 0;
goto restart;