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Commit 390f44e2 authored by Kirill A. Shutemov's avatar Kirill A. Shutemov Committed by Linus Torvalds
Browse files

mm: allow pgtable_page_ctor() to fail 



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: default avatarKirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent f8c6d30b

include/linux/mm.h

+2 −1
Original line number Original line Diff line number Diff line
@@ -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;})

#define pte_lockptr(mm, pmd)	({(void)(pmd); &(mm)->page_table_lock;})

#endif /* USE_SPLIT_PTE_PTLOCKS */

#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);

	pte_lock_init(page);

	inc_zone_page_state(page, NR_PAGETABLE);

	inc_zone_page_state(page, NR_PAGETABLE);

	return true;

}

}





static inline void pgtable_page_dtor(struct page *page)

static inline void pgtable_page_dtor(struct page *page)