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| author | Minchan Kim | 2017-05-03 23:54:07 +0200 |
|---|---|---|
| committer | Linus Torvalds | 2017-05-04 00:52:10 +0200 |
| commit | 22ffb33f4620b502799877d4186502bfe20621ea (patch) | |
| tree | 6eda10042e0e063ee3466aea6faf5969c2727eda /mm/mlock.c | |
| parent | mm: remove SWAP_DIRTY in ttu (diff) | |
| download | kernel-qcow2-linux-22ffb33f4620b502799877d4186502bfe20621ea.tar.gz kernel-qcow2-linux-22ffb33f4620b502799877d4186502bfe20621ea.tar.xz kernel-qcow2-linux-22ffb33f4620b502799877d4186502bfe20621ea.zip | |
mm: remove SWAP_MLOCK check for SWAP_SUCCESS in ttu
If the page is mapped and rescue in try_to_unmap_one, the
page_mapcount() of a page cannot be zero, so the page_mapcount check in
try_to_unmap is enough to return SWAP_SUCCESS. IOW, SWAP_MLOCK check is
redundant so remove it.
Link: http://lkml.kernel.org/r/1489555493-14659-4-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>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/mlock.c')
0 files changed, 0 insertions, 0 deletions