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authorAndrea Arcangeli <aarcange@redhat.com>2016-05-21 02:58:24 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2016-05-21 03:58:30 +0300
commit5f527c2b3ea261bfccb7d12f9feade924cc4987c (patch)
tree280af3a27eff695bdf9275bb4e69aa474638c6b8 /tools/perf/scripts/python
parent7b8da4c7f0777489f8690115b5fd7704ac0abb8f (diff)
downloadlinux-5f527c2b3ea261bfccb7d12f9feade924cc4987c.tar.xz
mm: thp: microoptimize compound_mapcount()
compound_mapcount() is only called after PageCompound() has already been checked by the caller, so there's no point to check it again. Gcc may optimize it away too because it's inline but this will remove the runtime check for sure and add it'll add an assert instead. Link: http://lkml.kernel.org/r/1462547040-1737-3-git-send-email-aarcange@redhat.com Signed-off-by: Andrea Arcangeli <aarcange@redhat.com> Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'tools/perf/scripts/python')
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