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| author | Hugh Dickins <hughd@google.com> | 2014-01-23 15:53:30 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-01-23 16:36:53 -0800 |
| commit | d2ab70aaae74456ed608740915dc82ef52291f69 (patch) | |
| tree | 279644e60297049e6917d80ea1b28a9dc58f692d /mm/memcontrol.c | |
| parent | a64fb3cd610c8e6806512dbac63f3fc45812d8fd (diff) | |
| download | lwn-d2ab70aaae74456ed608740915dc82ef52291f69.tar.gz lwn-d2ab70aaae74456ed608740915dc82ef52291f69.zip | |
mm/memcg: fix last_dead_count memory wastage
Shorten mem_cgroup_reclaim_iter.last_dead_count from unsigned long to
int: it's assigned from an int and compared with an int, and adjacent to
an unsigned int: so there's no point to it being unsigned long, which
wasted 104 bytes in every mem_cgroup_per_zone.
Signed-off-by: Hugh Dickins <hughd@google.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/memcontrol.c')
| -rw-r--r-- | mm/memcontrol.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c index c8715056e1ef..aa66cc4c9e79 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -149,7 +149,7 @@ struct mem_cgroup_reclaim_iter { * matches memcg->dead_count of the hierarchy root group. */ struct mem_cgroup *last_visited; - unsigned long last_dead_count; + int last_dead_count; /* scan generation, increased every round-trip */ unsigned int generation; |