tree e00739a549bd68afeff0685cb9998834b5eca877
parent ed3e694d78cc75fa79bf29698631b146fd27aa35
author Al Viro <viro@zeniv.linux.org.uk> 1340782409 +0400
committer Al Viro <viro@zeniv.linux.org.uk> 1342987077 +0400

deal with task_work callbacks adding more work

It doesn't matter on normal return to userland path (we'll recheck the
NOTIFY_RESUME flag anyway), but in case of exit_task_work() we'll
need that as soon as we get callbacks capable of triggering more
task_work_add().

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>