netdev, sched/wait: Fix sleeping inside wait event

rtnl_lock_unregistering*() take rtnl_lock() -- a mutex -- inside a
wait loop. The wait loop relies on current->state to function, but so
does mutex_lock(), nesting them makes for the inner to destroy the
outer state.

Fix this using the new wait_woken() bits.

Reported-by: Fengguang Wu <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Acked-by: David S. Miller <[email protected]>
Cc: Oleg Nesterov <[email protected]>
Cc: Cong Wang <[email protected]>
Cc: David Gibson <[email protected]>
Cc: Eric Biederman <[email protected]>
Cc: Eric Dumazet <[email protected]>
Cc: Jamal Hadi Salim <[email protected]>
Cc: Jerry Chu <[email protected]>
Cc: Jiri Pirko <[email protected]>
Cc: John Fastabend <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Nicolas Dichtel <[email protected]>
Cc: [email protected] <[email protected]>
Cc: stephen hemminger <[email protected]>
Cc: Tom Gundersen <[email protected]>
Cc: Tom Herbert <[email protected]>
Cc: Veaceslav Falico <[email protected]>
Cc: Vlad Yasevich <[email protected]>
Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>

0 files changed, 0 insertions, 0 deletions