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Date: Mon, 16 Dec 2002 10:11:55 +0000
To: Joe Thornber <joe@fib011235813.fsnet.co.uk>
Cc: Linus Torvalds <torvalds@transmeta.com>,
       Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: 9/19
Message-ID: <20021216101155.GJ7407@reti>
References: <20021211121749.GA20782@reti> <Pine.LNX.4.44.0212151649180.2445-100000@home.transmeta.com> <20021216100457.GA7407@reti>
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From: Joe Thornber <joe@fib011235813.fsnet.co.uk>
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queue_io() was checking the DMF_SUSPENDED flag rather than the new
DMF_BLOCK_IO flag.  This meant suspend could deadlock under load.
--- diff/drivers/md/dm.c	2002-12-16 09:40:58.000000000 +0000
+++ source/drivers/md/dm.c	2002-12-16 09:41:03.000000000 +0000
@@ -206,7 +206,7 @@
 
 	down_write(&md->lock);
 
-	if (!test_bit(DMF_SUSPENDED, &md->flags)) {
+	if (!test_bit(DMF_BLOCK_IO, &md->flags)) {
 		up_write(&md->lock);
 		free_deferred(di);
 		return 1;
-
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