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| author | Mel Gorman <mgorman@suse.de> | 2014-06-04 16:10:08 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-01-29 17:40:51 -0800 |
| commit | ab9f54b2d1589e20d6722ec5ecb359debf9f1fc7 (patch) | |
| tree | 19db6305f0071554ea2a946b5d39a097b33266f9 /README | |
| parent | 7a0b5ca9ba11c70b7b960c7b3eedbbdd746d12a0 (diff) | |
| download | lwn-ab9f54b2d1589e20d6722ec5ecb359debf9f1fc7.tar.gz lwn-ab9f54b2d1589e20d6722ec5ecb359debf9f1fc7.zip | |
mm: page_alloc: use jump labels to avoid checking number_of_cpusets
commit 664eeddeef6539247691197c1ac124d4aa872ab6 upstream.
If cpusets are not in use then we still check a global variable on every
page allocation. Use jump labels to avoid the overhead.
Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Jan Kara <jack@suse.cz>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Hugh Dickins <hughd@google.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Theodore Ts'o <tytso@mit.edu>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'README')
0 files changed, 0 insertions, 0 deletions