Signed-off-by: Kirill A. Shutemov <[email protected]>
Cc: Benjamin Herrenschmidt <[email protected]>
Cc: Paul Mackerras <[email protected]>
---
arch/powerpc/include/asm/pgalloc-64.h | 5 ++++-
arch/powerpc/mm/pgtable_32.c | 5 ++++-
arch/powerpc/mm/pgtable_64.c | 7 ++++---
3 files changed, 12 insertions(+), 5 deletions(-)
diff --git a/arch/powerpc/include/asm/pgalloc-64.h
b/arch/powerpc/include/asm/pgalloc-64.h
index f65e27b09b..16cb92d215 100644
--- a/arch/powerpc/include/asm/pgalloc-64.h
+++ b/arch/powerpc/include/asm/pgalloc-64.h
@@ -91,7 +91,10 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
if (!pte)
return NULL;
page = virt_to_page(pte);
- pgtable_page_ctor(page);
+ if (!pgtable_page_ctor(page)) {
+ __free_page(page);
+ return NULL;
+ }
return page;
}
diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c
index 6c856fb8c1..5b96017152 100644
--- a/arch/powerpc/mm/pgtable_32.c
+++ b/arch/powerpc/mm/pgtable_32.c
@@ -121,7 +121,10 @@ pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned
long address)
ptepage = alloc_pages(flags, 0);
if (!ptepage)
return NULL;
- pgtable_page_ctor(ptepage);
+ if (!pgtable_page_ctor(ptepage)) {
+ __free_page(ptepage);
+ return NULL;
+ }
return ptepage;
}
diff --git a/arch/powerpc/mm/pgtable_64.c b/arch/powerpc/mm/pgtable_64.c
index 536eec72c0..9d95786aa8 100644
--- a/arch/powerpc/mm/pgtable_64.c
+++ b/arch/powerpc/mm/pgtable_64.c
@@ -378,6 +378,10 @@ static pte_t *__alloc_for_cache(struct mm_struct *mm, int
kernel)
__GFP_REPEAT | __GFP_ZERO);
if (!page)
return NULL;
+ if (!kernel && !pgtable_page_ctor(page)) {
+ __free_page(page);
+ return NULL;
+ }
ret = page_address(page);
spin_lock(&mm->page_table_lock);
@@ -392,9 +396,6 @@ static pte_t *__alloc_for_cache(struct mm_struct *mm, int
kernel)
}
spin_unlock(&mm->page_table_lock);
- if (!kernel)
- pgtable_page_ctor(page);
-
return (pte_t *)ret;
}
--
1.8.4.rc3
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