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mm: allow pgtable_page_ctor() to fail

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Change pgtable_page_ctor() return type from void to bool.  Returns true,
if initialization is successful and false otherwise.

Current implementation never fails, but it will change later.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Kirill A. Shutemov 2013-11-14 14:31:20 -08:00 committed by Linus Torvalds
parent f8c6d30b76
commit 390f44e2aa
1 changed files with 2 additions and 1 deletions
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3
include/linux/mm.h
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@ -1338,10 +1338,11 @@ static inline pmd_t *pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long a
#define pte_lockptr(mm, pmd) ({(void)(pmd); &(mm)->page_table_lock;})
#endif /* USE_SPLIT_PTE_PTLOCKS */
static inline void pgtable_page_ctor(struct page *page)
static inline bool pgtable_page_ctor(struct page *page)
{
pte_lock_init(page);
inc_zone_page_state(page, NR_PAGETABLE);
return true;
}
static inline void pgtable_page_dtor(struct page *page)