From: "Kirill A. Shutemov" <kirill.shute...@linux.intel.com>
mem_cgroup_cache_charge() has check for PageCompound(). The check
prevents charging huge cache pages.
I don't see a reason why the check is present. Looks like it's just
legacy (introduced in 52d4b9a memcg: allocate all page_cgroup at boot).
Let's just drop it.
Signed-off-by: Kirill A. Shutemov <kirill.shute...@linux.intel.com>
---
mm/memcontrol.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 690fa8c..0e7f7e6 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -3975,8 +3975,6 @@ int mem_cgroup_cache_charge(struct page *page, struct
mm_struct *mm,
if (mem_cgroup_disabled())
return 0;
- if (PageCompound(page))
- return 0;
if (!PageSwapCache(page))
ret = mem_cgroup_charge_common(page, mm, gfp_mask, type);
--
1.7.10.4
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
