memcg: make global var read_mostly
mem_cgroup_subsys and page_cgroup_cache should be read_mostly and MEM_CGROUP_RECLAIM_RETRIES can be just a fixed number. Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Acked-by: Balbir Singh <balbir@linux.vnet.ibm.com> Acked-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -35,9 +35,9 @@
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#include <asm/uaccess.h>
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#include <asm/uaccess.h>
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struct cgroup_subsys mem_cgroup_subsys;
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struct cgroup_subsys mem_cgroup_subsys __read_mostly;
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static const int MEM_CGROUP_RECLAIM_RETRIES = 5;
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static struct kmem_cache *page_cgroup_cache __read_mostly;
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static struct kmem_cache *page_cgroup_cache;
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#define MEM_CGROUP_RECLAIM_RETRIES 5
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/*
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/*
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* Statistics for memory cgroup.
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* Statistics for memory cgroup.
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