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authorKirill A. Shutemov <kirill.shutemov@linux.intel.com>2013-11-14 14:31:43 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2013-11-15 09:32:19 +0900
commit76b3aec332e74596c517e1198764a5aeb8ea8398 (patch)
tree1cee055c301b61846b17b2b58a1d0ce2adfcb5c8
parent1ae9ae5f7df726c67736c643c1f03f7bdfe748eb (diff)
downloadlinux-76b3aec332e74596c517e1198764a5aeb8ea8398.tar.bz2
tile: handle pgtable_page_ctor() fail
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Acked-by: Chris Metcalf <cmetcalf@tilera.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--arch/tile/mm/pgtable.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/tile/mm/pgtable.c b/arch/tile/mm/pgtable.c
index 4fd9ec0b58ed..5e86eac4bfae 100644
--- a/arch/tile/mm/pgtable.c
+++ b/arch/tile/mm/pgtable.c
@@ -241,6 +241,11 @@ struct page *pgtable_alloc_one(struct mm_struct *mm, unsigned long address,
if (p == NULL)
return NULL;
+ if (!pgtable_page_ctor(p)) {
+ __free_pages(p, L2_USER_PGTABLE_ORDER);
+ return NULL;
+ }
+
/*
* Make every page have a page_count() of one, not just the first.
* We don't use __GFP_COMP since it doesn't look like it works
@@ -251,7 +256,6 @@ struct page *pgtable_alloc_one(struct mm_struct *mm, unsigned long address,
inc_zone_page_state(p+i, NR_PAGETABLE);
}
- pgtable_page_ctor(p);
return p;
}