From d5b69e38f8cdb1e41cc022305c86c9739bf1ffdb Mon Sep 17 00:00:00 2001 From: Hugh Dickins Date: Tue, 4 Mar 2008 14:29:10 -0800 Subject: memcg: memcontrol uninlined and static More cleanup to memcontrol.c, this time changing some of the code generated. Let the compiler decide what to inline (except for page_cgroup_locked which is only used when CONFIG_DEBUG_VM): the __always_inline on lock_page_cgroup etc. was quite a waste since bit_spin_lock etc. are inlines in a header file; made mem_cgroup_force_empty and mem_cgroup_write_strategy static. Signed-off-by: Hugh Dickins Cc: David Rientjes Cc: Balbir Singh Acked-by: KAMEZAWA Hiroyuki Cc: Hirokazu Takahashi Cc: YAMAMOTO Takashi Cc: Paul Menage Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/memcontrol.c | 28 +++++++++++----------------- 1 file changed, 11 insertions(+), 17 deletions(-) (limited to 'mm/memcontrol.c') diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 31ab2c014fa1..a59f946c9338 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -168,12 +168,12 @@ struct page_cgroup { #define PAGE_CGROUP_FLAG_CACHE (0x1) /* charged as cache */ #define PAGE_CGROUP_FLAG_ACTIVE (0x2) /* page is active in this cgroup */ -static inline int page_cgroup_nid(struct page_cgroup *pc) +static int page_cgroup_nid(struct page_cgroup *pc) { return page_to_nid(pc->page); } -static inline enum zone_type page_cgroup_zid(struct page_cgroup *pc) +static enum zone_type page_cgroup_zid(struct page_cgroup *pc) { return page_zonenum(pc->page); } @@ -199,14 +199,13 @@ static void mem_cgroup_charge_statistics(struct mem_cgroup *mem, int flags, __mem_cgroup_stat_add_safe(stat, MEM_CGROUP_STAT_RSS, val); } -static inline struct mem_cgroup_per_zone * +static struct mem_cgroup_per_zone * mem_cgroup_zoneinfo(struct mem_cgroup *mem, int nid, int zid) { - BUG_ON(!mem->info.nodeinfo[nid]); return &mem->info.nodeinfo[nid]->zoneinfo[zid]; } -static inline struct mem_cgroup_per_zone * +static struct mem_cgroup_per_zone * page_cgroup_zoneinfo(struct page_cgroup *pc) { struct mem_cgroup *mem = pc->mem_cgroup; @@ -231,16 +230,14 @@ static unsigned long mem_cgroup_get_all_zonestat(struct mem_cgroup *mem, return total; } -static inline -struct mem_cgroup *mem_cgroup_from_cont(struct cgroup *cont) +static struct mem_cgroup *mem_cgroup_from_cont(struct cgroup *cont) { return container_of(cgroup_subsys_state(cont, mem_cgroup_subsys_id), struct mem_cgroup, css); } -static inline -struct mem_cgroup *mem_cgroup_from_task(struct task_struct *p) +static struct mem_cgroup *mem_cgroup_from_task(struct task_struct *p) { return container_of(task_subsys_state(p, mem_cgroup_subsys_id), struct mem_cgroup, css); @@ -276,13 +273,12 @@ struct page_cgroup *page_get_page_cgroup(struct page *page) return (struct page_cgroup *) (page->page_cgroup & ~PAGE_CGROUP_LOCK); } -static void __always_inline lock_page_cgroup(struct page *page) +static void lock_page_cgroup(struct page *page) { bit_spin_lock(PAGE_CGROUP_LOCK_BIT, &page->page_cgroup); - VM_BUG_ON(!page_cgroup_locked(page)); } -static void __always_inline unlock_page_cgroup(struct page *page) +static void unlock_page_cgroup(struct page *page) { bit_spin_unlock(PAGE_CGROUP_LOCK_BIT, &page->page_cgroup); } @@ -741,16 +737,14 @@ void mem_cgroup_end_migration(struct page *page) void mem_cgroup_page_migration(struct page *page, struct page *newpage) { struct page_cgroup *pc; - struct mem_cgroup *mem; - unsigned long flags; struct mem_cgroup_per_zone *mz; + unsigned long flags; retry: pc = page_get_page_cgroup(page); if (!pc) return; - mem = pc->mem_cgroup; mz = page_cgroup_zoneinfo(pc); if (clear_page_cgroup(page, pc) != pc) goto retry; @@ -822,7 +816,7 @@ retry: * make mem_cgroup's charge to be 0 if there is no task. * This enables deleting this mem_cgroup. */ -int mem_cgroup_force_empty(struct mem_cgroup *mem) +static int mem_cgroup_force_empty(struct mem_cgroup *mem) { int ret = -EBUSY; int node, zid; @@ -852,7 +846,7 @@ out: return ret; } -int mem_cgroup_write_strategy(char *buf, unsigned long long *tmp) +static int mem_cgroup_write_strategy(char *buf, unsigned long long *tmp) { *tmp = memparse(buf, &buf); if (*buf != '\0') -- cgit v1.2.3-58-ga151