From e1a1cd590e3fcb0d2e230128daf2337ea55387dc Mon Sep 17 00:00:00 2001 From: Balbir Singh Date: Thu, 7 Feb 2008 00:14:02 -0800 Subject: Memory controller: make charging gfp mask aware Nick Piggin pointed out that swap cache and page cache addition routines could be called from non GFP_KERNEL contexts. This patch makes the charging routine aware of the gfp context. Charging might fail if the cgroup is over it's limit, in which case a suitable error is returned. This patch was tested on a Powerpc box. I am still looking at being able to test the path, through which allocations happen in non GFP_KERNEL contexts. [kamezawa.hiroyu@jp.fujitsu.com: problem with ZONE_MOVABLE] Signed-off-by: Balbir Singh Cc: Pavel Emelianov Cc: Paul Menage Cc: Peter Zijlstra Cc: "Eric W. Biederman" Cc: Nick Piggin Cc: Kirill Korotaev Cc: Herbert Poetzl Cc: David Rientjes Cc: Vaidyanathan Srinivasan Signed-off-by: KAMEZAWA Hiroyuki Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/filemap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'mm/filemap.c') diff --git a/mm/filemap.c b/mm/filemap.c index 8ae171cc281..63040d5e0ae 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -464,7 +464,7 @@ int add_to_page_cache(struct page *page, struct address_space *mapping, if (error == 0) { - error = mem_cgroup_cache_charge(page, current->mm); + error = mem_cgroup_cache_charge(page, current->mm, gfp_mask); if (error) goto out; -- cgit v1.2.3-18-g5258