From 64f2199389414341ed3a570663f23616c131ba25 Mon Sep 17 00:00:00 2001 From: Johannes Weiner Date: Wed, 10 Dec 2014 15:42:45 -0800 Subject: mm: memcontrol: remove obsolete kmemcg pinning tricks As charges now pin the css explicitely, there is no more need for kmemcg to acquire a proxy reference for outstanding pages during offlining, or maintain state to identify such "dead" groups. This was the last user of the uncharge functions' return values, so remove them as well. Signed-off-by: Johannes Weiner Reviewed-by: Vladimir Davydov Acked-by: Michal Hocko Cc: David Rientjes Cc: Tejun Heo Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/page_counter.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include/linux/page_counter.h') diff --git a/include/linux/page_counter.h b/include/linux/page_counter.h index 7cce3be99ff3..955421575d16 100644 --- a/include/linux/page_counter.h +++ b/include/linux/page_counter.h @@ -34,12 +34,12 @@ static inline unsigned long page_counter_read(struct page_counter *counter) return atomic_long_read(&counter->count); } -int page_counter_cancel(struct page_counter *counter, unsigned long nr_pages); +void page_counter_cancel(struct page_counter *counter, unsigned long nr_pages); void page_counter_charge(struct page_counter *counter, unsigned long nr_pages); int page_counter_try_charge(struct page_counter *counter, unsigned long nr_pages, struct page_counter **fail); -int page_counter_uncharge(struct page_counter *counter, unsigned long nr_pages); +void page_counter_uncharge(struct page_counter *counter, unsigned long nr_pages); int page_counter_limit(struct page_counter *counter, unsigned long limit); int page_counter_memparse(const char *buf, unsigned long *nr_pages); -- cgit