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

From: Hans Reiser
Date: Wed Nov 16 2005 - 03:57:07 EST



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From: Alex Zarochentsev <zam@xxxxxxxxxxx>

This patch fixes broken lock ordering.

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


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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