Commit 83612a94 authored May 03, 2017 by Minchan Kim Committed by Linus Torvalds May 03, 2017

mm: remove SWAP_[SUCCESS|AGAIN|FAIL]

There is no user for it.  Remove it.

[minchan@kernel.org: use false instead of SWAP_FAIL]
  Link: http://lkml.kernel.org/r/20170316053313.GA19241@bbox
Link: http://lkml.kernel.org/r/1489555493-14659-11-git-send-email-minchan@kernel.org

Signed-off-by: Minchan Kim <minchan@kernel.org>
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: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent e4b82222

include/linux/rmap.h

+0 −7

Original line number	Diff line number	Diff line
		@@ -295,11 +295,4 @@ static inline int page_mkclean(struct page *page)

		#endif /* CONFIG_MMU */

		/*
		* Return values of try_to_unmap
		*/
		#define SWAP_SUCCESS 0
		#define SWAP_AGAIN 1
		#define SWAP_FAIL 2

		#endif /* _LINUX_RMAP_H */

mm/rmap.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1419,7 +1419,7 @@ static bool try_to_unmap_one(struct page page, struct vm_area_struct vma,
		*/
		if (unlikely(PageSwapBacked(page) != PageSwapCache(page))) {
		WARN_ON_ONCE(1);
		ret = SWAP_FAIL;
		ret = false;
		page_vma_mapped_walk_done(&pvmw);
		break;
		}