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(parent: 64ad91c) | patch
lockdep: Fix lockdep annotation for pipe_double_lock()
authorPeter Zijlstra <peterz@infradead.org>
Tue, 21 Jul 2009 08:09:23 +0000 (10:09 +0200)
committerPeter Zijlstra <a.p.zijlstra@chello.nl>
Wed, 22 Jul 2009 19:14:14 +0000 (21:14 +0200)
commitfe6a51312ac1edc49025b53a581d4823952fc6b8
treea817c4765d17c5d7facb66ae43cbc2b04c28c05btree | snapshot
parent64ad91c7e3b4f33fd771c9e597b2b9e9cebaf44acommit | diff
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>
fs/pipe.c diff | blob | history
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