tree 0722d86daa8778a69207965cc6bc005d0def9f08
parent fbfd1d2862a8316c7191bc551c6a842e6918abb0
author Linus Torvalds <torvalds@linux-foundation.org> 1367689677 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1367713214 -0700

ipc: move sem_obtain_lock() rcu locking into the only caller

sem_obtain_lock() was another of those functions that returned with the
RCU lock held for reading in the success case.  Move the RCU locking to
the caller (semtimedop()), making it more obvious.  We already did RCU
locking elsewhere in that function.

Side note: why does semtimedop() re-do the semphore lookup after the
sleep, rather than just getting a reference to the semaphore it already
looked up originally?

Acked-by: Davidlohr Bueso <davidlohr.bueso@hp.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>