diff options
Diffstat (limited to 'mm/memcontrol.c')
| -rw-r--r-- | mm/memcontrol.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c index e1ee6ad9c97..b56bd74b486 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -2475,7 +2475,7 @@ int mem_cgroup_cache_charge(struct page *page, struct mm_struct *mm, /* shmem */ if (PageSwapCache(page)) { - struct mem_cgroup *mem = NULL; + struct mem_cgroup *mem; ret = mem_cgroup_try_charge_swapin(mm, page, gfp_mask, &mem); if (!ret) @@ -2501,6 +2501,8 @@ int mem_cgroup_try_charge_swapin(struct mm_struct *mm, struct mem_cgroup *mem; int ret; + *ptr = NULL; + if (mem_cgroup_disabled()) return 0; @@ -2916,6 +2918,8 @@ int mem_cgroup_prepare_migration(struct page *page, enum charge_type ctype; int ret = 0; + *ptr = NULL; + VM_BUG_ON(PageTransHuge(page)); if (mem_cgroup_disabled()) return 0; @@ -3058,7 +3062,7 @@ int mem_cgroup_shmem_charge_fallback(struct page *page, struct mm_struct *mm, gfp_t gfp_mask) { - struct mem_cgroup *mem = NULL; + struct mem_cgroup *mem; int ret; if (mem_cgroup_disabled()) |