tree 053a27f83f9bf00638197f451f49117cfe110fea
parent 13bcc6a2853435bb5dad368bcbaa9d2a5b9c0ac4
author Eric W. Biederman <ebiederm@xmission.com> 1469904817 -0500
committer Eric W. Biederman <ebiederm@xmission.com> 1470665838 -0500

userns: Free user namespaces in process context

Add the necessary boiler plate to move freeing of user namespaces into
work queue and thus into process context where things can sleep.

This is a necessary precursor to per user namespace sysctls.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>