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| author |   Mel Gorman <mgorman@techsingularity.net> | 2015-11-06 16:28:15 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2015-11-06 17:50:42 -0800 |
| commit | 46e700abc44ce215acb4341d9702ce3972eda571 (patch) | |
| tree | 6730677333bd4a69a014cf87fc6e40207b8cab1c /mm/backing-dev.c | |
| parent | mm, page_alloc: remove unnecessary recalculations for dirty zone balancing (diff) | |
| download | linux-dev-46e700abc44ce215acb4341d9702ce3972eda571.tar.xz linux-dev-46e700abc44ce215acb4341d9702ce3972eda571.zip | |
mm, page_alloc: remove unnecessary taking of a seqlock when cpusets are disabled
There is a seqcounter that protects against spurious allocation failures
when a task is changing the allowed nodes in a cpuset. There is no need
to check the seqcounter until a cpuset exists.
Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
Acked-by: Christoph Lameter <cl@linux.com>
Acked-by: David Rientjes <rientjes@google.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Vitaly Wool <vitalywool@gmail.com>
Cc: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/backing-dev.c')
0 files changed, 0 insertions, 0 deletions