From: Alan Cox <alan@linux.intel.com>
Date: Sat, 12 Dec 2009 10:32:36 +0000 (+0000)
Subject: tty: Fix BKL taken under a spinlock bug introduced in the BKL split
X-Git-Tag: v2.6.33-rc1~292
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6698e34720660e18b45e2e3b115ee4584d0c3b5e;p=pandora-kernel.git

tty: Fix BKL taken under a spinlock bug introduced in the BKL split

The fasync path takes the BKL (it probably doesn't need to in fact)
while holding the file_list spinlock.  You can't do that with the kernel
lock: it causes lock inversions and deadlocks.

Leave the BKL over that bit for the moment.

Identified by AKPM.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Acked-and-Tested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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