diff options
author | Tejun Heo <tj@kernel.org> | 2019-05-31 10:38:57 -0700 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-08-09 17:53:36 +0200 |
commit | d7b538a6c9678fcc6f00b6024bcbfd4bb0593d1c (patch) | |
tree | c3655427af581f554ec5f8d71ec49b7f98038256 /kernel/cgroup/cgroup-internal.h | |
parent | c30c2b103edfdb523b67aa7f94b49646bb888e6e (diff) |
cgroup: Call cgroup_release() before __exit_signal()
commit 6b115bf58e6f013ca75e7115aabcbd56c20ff31d upstream.
cgroup_release() calls cgroup_subsys->release() which is used by the
pids controller to uncharge its pid. We want to use it to manage
iteration of dying tasks which requires putting it before
__unhash_process(). Move cgroup_release() above __exit_signal().
While this makes it uncharge before the pid is freed, pid is RCU freed
anyway and the window is very narrow.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel/cgroup/cgroup-internal.h')
0 files changed, 0 insertions, 0 deletions