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| author | Oleg Nesterov <oleg@redhat.com> | 2015-11-27 19:57:22 +0100 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2015-11-30 15:48:18 +0100 |
| commit | afbcb364bee9e7cf46c94257a82cb9760b6d254f (patch) | |
| tree | 0258ae0534c2d1933da6bf445b840db067a50941 /mm | |
| parent | cgroup: pids: fix race between cgroup_post_fork() and cgroup_migrate() (diff) | |
| download | linux-afbcb364bee9e7cf46c94257a82cb9760b6d254f.tar.xz linux-afbcb364bee9e7cf46c94257a82cb9760b6d254f.zip | |
cgroup: pids: kill pids_fork(), simplify pids_can_fork() and pids_cancel_fork()
Now that we know that the forking task can't migrate amd the child is always
moved to the same cgroup by cgroup_post_fork()->css_set_move_task() we can
change pids_can_fork() and pids_cancel_fork() to just use task_css(current).
And since we no longer need to pin this css, we can remove pid_fork().
Note: the patch uses task_css_check(true), perhaps it makes sense to add a
helper or change task_css_set_check() to take cgroup_threadgroup_rwsem into
account.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Zefan Li <lizefan@huawei.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions