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

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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 <[email protected]>
Acked-by: Tejun Heo <[email protected]>
Acked-by: David S. Miller <[email protected]>
Cc: Yinghai Lu <[email protected]>
Cc: Gavin Shan <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Johannes Weiner 2012-05-29 15:06:33 -07:00 • committed by Linus Torvalds
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;