]> git.baikalelectronics.ru Git - kernel.git/commit
mm/hugetlb: fix warning in alloc_huge_page/dequeue_huge_page_vma
authorKonstantin Khlebnikov <khlebnikov@openvz.org>
Wed, 25 Apr 2012 23:01:46 +0000 (16:01 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Thu, 26 Apr 2012 04:26:33 +0000 (21:26 -0700)
commit2ddf55049b5617af1599015fb2d5515d8cfb4a0d
treef1c6c3ae42641cf89e8e2d7b731595550960e5d0
parent955374d25137c391eaf05569ccd747c346cb6db6
mm/hugetlb: fix warning in alloc_huge_page/dequeue_huge_page_vma

Fix a gcc warning (and bug?) introduced in cc8e8bf95 ("cpuset: mm: reduce
large amounts of memory barrier related damage v3")

Local variable "page" can be uninitialized if the nodemask from vma policy
does not intersects with nodemask from cpuset.  Even if it doesn't happens
it is better to initialize this variable explicitly than to introduce
a kernel oops in a weird corner case.

mm/hugetlb.c: In function `alloc_huge_page':
mm/hugetlb.c:1135:5: warning: `page' may be used uninitialized in this function

Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Acked-by: Mel Gorman <mgorman@suse.de>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mm/hugetlb.c