Commit d2ab70aa authored by Hugh Dickins's avatar Hugh Dickins Committed by Linus Torvalds

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: default avatarHugh Dickins <hughd@google.com>
Acked-by: default avatarMichal Hocko <mhocko@suse.cz>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent a64fb3cd
......@@ -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;
......
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