diff options
| author | Vlastimil Babka <vbabka@suse.cz> | 2016-10-08 01:57:53 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-10-08 03:46:27 +0200 |
| commit | 9861a62c335cd34a2b6b25aaaf5898e8370299ec (patch) | |
| tree | 4eb21fe16acfb2e229422de1927bfcb152781829 /lib/syscall.c | |
| parent | mm, compaction: use correct watermark when checking compaction success (diff) | |
| download | linux-9861a62c335cd34a2b6b25aaaf5898e8370299ec.tar.xz linux-9861a62c335cd34a2b6b25aaaf5898e8370299ec.zip | |
mm, compaction: create compact_gap wrapper
Compaction uses a watermark gap of (2UL << order) pages at various
places and it's not immediately obvious why. Abstract it through a
compact_gap() wrapper to create a single place with a thorough
explanation.
[vbabka@suse.cz: clarify the comment of compact_gap()]
Link: http://lkml.kernel.org/r/7b6aed1f-fdf8-2063-9ff4-bbe4de712d37@suse.cz
Link: http://lkml.kernel.org/r/20160810091226.6709-9-vbabka@suse.cz
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Tested-by: Lorenzo Stoakes <lstoakes@gmail.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Rik van Riel <riel@redhat.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib/syscall.c')
0 files changed, 0 insertions, 0 deletions