diff options
| -rw-r--r-- | mm/memcontrol.c | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 79a53f0f0cf5..ea5f5edf00b7 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -2018,10 +2018,9 @@ out: * < 0 if the cgroup is over its limit */ static int mem_cgroup_charge_common(struct page *page, struct mm_struct *mm, - gfp_t gfp_mask, enum charge_type ctype, - struct mem_cgroup *memcg) + gfp_t gfp_mask, enum charge_type ctype) { - struct mem_cgroup *mem; + struct mem_cgroup *mem = NULL; struct page_cgroup *pc; int ret; @@ -2031,7 +2030,6 @@ static int mem_cgroup_charge_common(struct page *page, struct mm_struct *mm, return 0; prefetchw(pc); - mem = memcg; ret = __mem_cgroup_try_charge(mm, gfp_mask, &mem, true); if (ret || !mem) return ret; @@ -2059,7 +2057,7 @@ int mem_cgroup_newpage_charge(struct page *page, if (unlikely(!mm)) mm = &init_mm; return mem_cgroup_charge_common(page, mm, gfp_mask, - MEM_CGROUP_CHARGE_TYPE_MAPPED, NULL); + MEM_CGROUP_CHARGE_TYPE_MAPPED); } static void @@ -2069,7 +2067,6 @@ __mem_cgroup_commit_charge_swapin(struct page *page, struct mem_cgroup *ptr, int mem_cgroup_cache_charge(struct page *page, struct mm_struct *mm, gfp_t gfp_mask) { - struct mem_cgroup *mem = NULL; int ret; if (mem_cgroup_disabled()) @@ -2101,22 +2098,24 @@ int mem_cgroup_cache_charge(struct page *page, struct mm_struct *mm, unlock_page_cgroup(pc); } - if (unlikely(!mm && !mem)) + if (unlikely(!mm)) mm = &init_mm; if (page_is_file_cache(page)) return mem_cgroup_charge_common(page, mm, gfp_mask, - MEM_CGROUP_CHARGE_TYPE_CACHE, NULL); + MEM_CGROUP_CHARGE_TYPE_CACHE); /* shmem */ if (PageSwapCache(page)) { + struct mem_cgroup *mem = NULL; + ret = mem_cgroup_try_charge_swapin(mm, page, gfp_mask, &mem); if (!ret) __mem_cgroup_commit_charge_swapin(page, mem, MEM_CGROUP_CHARGE_TYPE_SHMEM); } else ret = mem_cgroup_charge_common(page, mm, gfp_mask, - MEM_CGROUP_CHARGE_TYPE_SHMEM, mem); + MEM_CGROUP_CHARGE_TYPE_SHMEM); return ret; } |