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mm: make ttu's return boolean

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try_to_unmap() returns SWAP_SUCCESS or SWAP_FAIL so it's suitable for
boolean return.  This patch changes it.

Link: http://lkml.kernel.org/r/1489555493-14659-8-git-send-email-minchan@kernel.org
Signed-off-by: Minchan Kim <minchan@kernel.org>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Anshuman Khandual <khandual@linux.vnet.ibm.com>
Cc: Hillf Danton <hillf.zj@alibaba-inc.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Minchan Kim 2017-05-03 14:54:20 -07:00 • committed by Linus Torvalds
parent 33fc80e257
commit 666e5a406c
5 changed files with 21 additions and 30 deletions
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4
include/linux/rmap.h
View file

@ -191,7 +191,7 @@ static inline void page_dup_rmap(struct page *page, bool compound)
int page_referenced(struct page *, int is_locked,
struct mem_cgroup *memcg, unsigned long *vm_flags);
int try_to_unmap(struct page *, enum ttu_flags flags);
bool try_to_unmap(struct page *, enum ttu_flags flags);
/* Avoid racy checks */
#define PVMW_SYNC (1 << 0)
@ -281,7 +281,7 @@ static inline int page_referenced(struct page *page, int is_locked,
return 0;
}
#define try_to_unmap(page, refs) SWAP_FAIL
#define try_to_unmap(page, refs) false
static inline int page_mkclean(struct page *page)
{