tree c28ffa400a5fc78becc9d75cdccb126fc9138ff2
parent e87aa773747fb5e4217d716ea22a573c03b6693a
author Matthew Wilcox <matthew@wil.cx> 1196701773 -0500
committer Matthew Wilcox <matthew@wil.cx> 1196782796 -0500

Avoid taking waitqueue lock in dmapool

With one trivial change (taking the lock slightly earlier on wakeup
from schedule), all uses of the waitq are under the pool lock, so we
can use the locked (or __) versions of the wait queue functions, and
avoid the extra spinlock.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Acked-by: David S. Miller <davem@davemloft.net>