From 952aaa125428fae883670a2c2e40ea8044ca1eaa Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Tue, 25 Feb 2014 10:04:03 -0500 Subject: [PATCH] cgroup: update cgroup_transfer_tasks() to either succeed or fail cgroup_transfer_tasks() can currently fail in the middle due to memory allocation failure. When that happens, the function just aborts and returns error code and there's no way to tell how many actually got migrated at the point of failure and or to revert the partial migration. Update it to use cgroup_migrate{_add_src|prepare_dst|migrate|finish}() so that the function either succeeds or fails as a whole as long as ->can_attach() doesn't fail. Signed-off-by: Tejun Heo Acked-by: Li Zefan --- Reading git-format-patch failed