Messages in this thread Patch in this message |  | | | Date | Fri, 5 Dec 2008 21:23:04 +0900 | | From | Daisuke Nishimura <> | | Subject | [RFC][PATCH -mmotm 1/4] memcg: don't trigger oom at page migration |
| |
I think triggering OOM at mem_cgroup_prepare_migration would be just a bit overkill. Returning -ENOMEM would be enough for mem_cgroup_prepare_migration. The caller would handle the case anyway.
Signed-off-by: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> --- mm/memcontrol.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 4dbce1d..50ee1be 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -1330,7 +1330,7 @@ int mem_cgroup_prepare_migration(struct page *page, struct mem_cgroup **ptr) unlock_page_cgroup(pc); if (mem) { - ret = mem_cgroup_try_charge(NULL, GFP_KERNEL, &mem); + ret = __mem_cgroup_try_charge(NULL, GFP_KERNEL, &mem, false); css_put(&mem->css); } *ptr = mem;
|  |