Messages in this thread Patch in this message |  | | | Date | Fri, 5 Dec 2008 21:24:01 +0900 | | From | Daisuke Nishimura <> | | Subject | [RFC][PATCH -mmotm 2/4] memcg: remove mem_cgroup_try_charge |
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Now, mem_cgroup_try_charge is not used by anyone, so we can remove it.
Signed-off-by: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> --- include/linux/memcontrol.h | 8 -------- mm/memcontrol.c | 21 +-------------------- 2 files changed, 1 insertions(+), 28 deletions(-) diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index fe82b58..4b35739 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -40,8 +40,6 @@ struct mm_struct; extern int mem_cgroup_newpage_charge(struct page *page, struct mm_struct *mm, gfp_t gfp_mask); /* for swap handling */ -extern int mem_cgroup_try_charge(struct mm_struct *mm, - gfp_t gfp_mask, struct mem_cgroup **ptr); extern int mem_cgroup_try_charge_swapin(struct mm_struct *mm, struct page *page, gfp_t mask, struct mem_cgroup **ptr); extern void mem_cgroup_commit_charge_swapin(struct page *page, @@ -135,12 +133,6 @@ static inline int mem_cgroup_cache_charge(struct page *page, return 0; } -static inline int mem_cgroup_try_charge(struct mm_struct *mm, - gfp_t gfp_mask, struct mem_cgroup **ptr) -{ - return 0; -} - static inline int mem_cgroup_try_charge_swapin(struct mm_struct *mm, struct page *page, gfp_t gfp_mask, struct mem_cgroup **ptr) { diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 50ee1be..9c5856b 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -808,27 +808,8 @@ nomem: return -ENOMEM; } -/** - * mem_cgroup_try_charge - get charge of PAGE_SIZE. - * @mm: an mm_struct which is charged against. (when *memcg is NULL) - * @gfp_mask: gfp_mask for reclaim. - * @memcg: a pointer to memory cgroup which is charged against. - * - * charge against memory cgroup pointed by *memcg. if *memcg == NULL, estimated - * memory cgroup from @mm is got and stored in *memcg. - * - * Returns 0 if success. -ENOMEM at failure. - * This call can invoke OOM-Killer. - */ - -int mem_cgroup_try_charge(struct mm_struct *mm, - gfp_t mask, struct mem_cgroup **memcg) -{ - return __mem_cgroup_try_charge(mm, mask, memcg, true); -} - /* - * commit a charge got by mem_cgroup_try_charge() and makes page_cgroup to be + * commit a charge got by __mem_cgroup_try_charge() and makes page_cgroup to be * USED state. If already USED, uncharge and return. */
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