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| author | Jianyu Zhan <nasa4836@gmail.com> | 2014-06-04 16:10:38 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-06-04 16:54:11 -0700 |
| commit | 4be89a34609659042ef0bf883ad76388fb5251bb (patch) | |
| tree | 7a438185cb78e2c6d3aec1e64960e64188cb4afe /mm/pagewalk.c | |
| parent | b7596fb43aa786fb3ee5015a73034fbb9e80feaa (diff) | |
| download | talos-op-linux-4be89a34609659042ef0bf883ad76388fb5251bb.tar.gz talos-op-linux-4be89a34609659042ef0bf883ad76388fb5251bb.zip | |
mm/vmscan.c: use DIV_ROUND_UP for calculation of zone's balance_gap and correct comments.
Currently, we use (zone->managed_pages + KSWAPD_ZONE_BALANCE_GAP_RATIO-1)
/ KSWAPD_ZONE_BALANCE_GAP_RATIO to avoid a zero gap value. It's better to
use DIV_ROUND_UP macro for neater code and clear meaning.
Besides, the gap value is calculated against the per-zone "managed pages",
not "present pages". This patch also corrects the comment and do some
rephrasing.
Signed-off-by: Jianyu Zhan <nasa4836@gmail.com>
Acked-by: Rik van Riel <riel@redhat.com>
Acked-by: Rafael Aquini <aquini@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/pagewalk.c')
0 files changed, 0 insertions, 0 deletions
