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authorHugh Dickins <hughd@google.com>2013-02-22 16:36:10 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2013-02-23 17:50:24 -0800
commit56f31801ccdecb420d0d1fd2bf9f337c355214a9 (patch)
tree868442b02e6c83bdd52e4e129b17b90341190b6d /mm/ksm.c
parent9e16b7fb1d066d38d01fd57c449f2640c5d208cb (diff)
mm: cleanup "swapcache" in do_swap_page
I dislike the way in which "swapcache" gets used in do_swap_page(): there is always a page from swapcache there (even if maybe uncached by the time we lock it), but tests are made according to "swapcache". Rework that with "page != swapcache", as has been done in unuse_pte(). Signed-off-by: Hugh Dickins <hughd@google.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Petr Holasek <pholasek@redhat.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Izik Eidus <izik.eidus@ravellosystems.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/ksm.c')
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