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mm, mempolicy: remove duplicate code 

Remove some duplicate code and simplify alloc_pages_vma().  No functional
change.

Signed-off-by: David Rientjes <rientjes@google.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
David Rientjes 2012-12-11 16:02:51 -08:00 committed by Linus Torvalds
parent 6f6313d487
commit 212a0a6f28
1 changed files with 4 additions and 17 deletions
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21
mm/mempolicy.c
View File

@ -1907,7 +1907,6 @@ alloc_pages_vma(gfp_t gfp, int order, struct vm_area_struct *vma,
unsigned long addr, int node)
{
struct mempolicy *pol;
struct zonelist *zl;
struct page *page;
unsigned int cpuset_mems_cookie;
@ -1926,23 +1925,11 @@ alloc_pages_vma(gfp_t gfp, int order, struct vm_area_struct *vma,
return page;
}
zl = policy_zonelist(gfp, pol, node);
if (unlikely(mpol_needs_cond_ref(pol))) {
/*
* slow path: ref counted shared policy
*/
struct page *page = __alloc_pages_nodemask(gfp, order,
zl, policy_nodemask(gfp, pol));
__mpol_put(pol);
if (unlikely(!put_mems_allowed(cpuset_mems_cookie) && !page))
goto retry_cpuset;
return page;
}
/*
* fast path: default or task policy
*/
page = __alloc_pages_nodemask(gfp, order, zl,
page = __alloc_pages_nodemask(gfp, order,
policy_zonelist(gfp, pol, node),
policy_nodemask(gfp, pol));
if (unlikely(mpol_needs_cond_ref(pol)))
__mpol_put(pol);
if (unlikely(!put_mems_allowed(cpuset_mems_cookie) && !page))
goto retry_cpuset;
return page;