tree a817c4765d17c5d7facb66ae43cbc2b04c28c05b
parent aea1f7964ae6cba5eb419a958956deb9016b3341
author Peter Zijlstra <peterz@infradead.org> 1248163763 +0200
committer Peter Zijlstra <a.p.zijlstra@chello.nl> 1248290054 +0200

lockdep: Fix lockdep annotation for pipe_double_lock()

The presumed use of the pipe_double_lock() routine is to lock 2 locks in
a deadlock free way by ordering the locks by their address. However it
fails to keep the specified lock classes in order and explicitly
annotates a deadlock.

Rectify this.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Miklos Szeredi <mszeredi@suse.cz>
LKML-Reference: <1248163763.15751.11098.camel@twins>