[Fwd: [PATCH 5/8] reiser4-lock-ordering-fix.patch]

[Hans Reiser <reiser@namesys.com>]

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• To: reiser@namesys.com
• Subject: [PATCH 5/8] reiser4-lock-ordering-fix.patch
• From: vs@tribesman.namesys.com (Vladimir Saveliev)
• Date: Tue, 15 Nov 2005 19:59:46 +0300
• Delivered-to: reiser@namesys.com
• User-agent: nail 10.5 4/27/03

.

From: Alex Zarochentsev <zam@namesys.com>

This patch fixes broken lock ordering.

Signed-off-by: Vladimir V. Saveliev <vs@namesys.com>


 fs/reiser4/txnmgr.c |    2 ++
 1 files changed, 2 insertions(+)

diff -puN fs/reiser4/txnmgr.c~reiser4-lock-ordering-fix fs/reiser4/txnmgr.c
--- linux-2.6.14-mm2/fs/reiser4/txnmgr.c~reiser4-lock-ordering-fix	2005-11-15 17:18:42.000000000 +0300
+++ linux-2.6.14-mm2-vs/fs/reiser4/txnmgr.c	2005-11-15 17:18:42.000000000 +0300
@@ -2256,7 +2256,9 @@ static void fuse_not_fused_lock_owners(t
 			spin_lock_atom(atomh);
 		}
 		if (atomh == atomf || !atom_isopen(atomh) || !atom_isopen(atomf)) {
+			spin_unlock_atom(atomf);
 			atom_dec_and_unlock(atomh);
+			spin_lock_atom(atomf);
 			atom_dec_and_unlock(atomf);
 			goto repeat;
 		}

_

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