Files
linux/kernel
Tejun Heo 6c694c8825 cgroup: move migration destination verification out of cgroup_migrate_prepare_dst()
cgroup_migrate_prepare_dst() verifies whether the destination cgroup
is allowable; however, the test doesn't really belong there.  It's too
deep and common in the stack and as a result the test itself is gated
by another test.

Separate the test out into cgroup_may_migrate_to() and update
cgroup_attach_task() and cgroup_transfer_tasks() to perform the test
directly.  This doesn't cause any behavior differences.

Signed-off-by: Tejun Heo <tj@kernel.org>
2016-03-08 11:51:25 -05:00
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