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| author | Liang Chen | 2016-01-16 01:57:28 +0100 |
|---|---|---|
| committer | Linus Torvalds | 2016-01-16 02:56:32 +0100 |
| commit | d645fc0eabbe783d34a14fbb31768ad8571f0ad4 (patch) | |
| tree | f85a130c9cde66b724ee6774b23fb5c782a85572 /mm/rmap.c | |
| parent | mm/page_alloc.c: remove unused struct zone *z variable (diff) | |
| download | kernel-qcow2-linux-d645fc0eabbe783d34a14fbb31768ad8571f0ad4.tar.gz kernel-qcow2-linux-d645fc0eabbe783d34a14fbb31768ad8571f0ad4.tar.xz kernel-qcow2-linux-d645fc0eabbe783d34a14fbb31768ad8571f0ad4.zip | |
mm: mempolicy: skip non-migratable VMAs when setting MPOL_MF_LAZY
MPOL_MF_LAZY is not visible from userspace since a720094ded8c ("mm:
mempolicy: Hide MPOL_NOOP and MPOL_MF_LAZY from userspace for now"), but
it should still skip non-migratable VMAs such as VM_IO, VM_PFNMAP, and
VM_HUGETLB VMAs, and avoid useless overhead of minor faults.
Signed-off-by: Liang Chen <liangchen.linux@gmail.com>
Signed-off-by: Gavin Guo <gavin.guo@canonical.com>
Acked-by: Rik van Riel <riel@redhat.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: David Rientjes <rientjes@google.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/rmap.c')
0 files changed, 0 insertions, 0 deletions