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-rw-r--r--mm/memcontrol.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 0e81eb5f0aea..fc75f34ba609 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -2351,13 +2351,19 @@ static int mem_cgroup_charge_common(struct page *page, struct mm_struct *mm,
gfp_t gfp_mask, enum charge_type ctype)
{
struct mem_cgroup *mem = NULL;
+ int page_size = PAGE_SIZE;
struct page_cgroup *pc;
+ bool oom = true;
int ret;
- int page_size = PAGE_SIZE;
if (PageTransHuge(page)) {
page_size <<= compound_order(page);
VM_BUG_ON(!PageTransHuge(page));
+ /*
+ * Never OOM-kill a process for a huge page. The
+ * fault handler will fall back to regular pages.
+ */
+ oom = false;
}
pc = lookup_page_cgroup(page);
@@ -2366,7 +2372,7 @@ static int mem_cgroup_charge_common(struct page *page, struct mm_struct *mm,
return 0;
prefetchw(pc);
- ret = __mem_cgroup_try_charge(mm, gfp_mask, &mem, true, page_size);
+ ret = __mem_cgroup_try_charge(mm, gfp_mask, &mem, oom, page_size);
if (ret || !mem)
return ret;