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Date: Fri, 09 May 2008 15:39:43 -0700
From: Mingming Cao <cmm@...ibm.com>
To: Jan Kara <jack@...e.cz>
Subject: [PATCH] JBD:need hold j_state_lock to updates to transaction
t_state to T_COMMIT
Updating the current transaction's t_state is being protected by j_state_lock.
We need to do the same when updating the t_state to T_COMMIT.
Signed-off-by: Mingming Cao <cmm@...ibm.com>
---
fs/jbd/commit.c | 2 ++
1 file changed, 2 insertions(+)
Index: linux-2.6.26-rc1/fs/jbd/commit.c
===================================================================
--- linux-2.6.26-rc1.orig/fs/jbd/commit.c 2008-05-09 14:46:25.000000000 -0700
+++ linux-2.6.26-rc1/fs/jbd/commit.c 2008-05-09 15:11:00.000000000 -0700
@@ -478,7 +478,9 @@ void journal_commit_transaction(journal_
* transaction! Now comes the tricky part: we need to write out
* metadata. Loop over the transaction's entire buffer list:
*/
+ spin_lock(&journal->j_state_lock);
commit_transaction->t_state = T_COMMIT;
+ spin_unlock(&journal->j_state_lock);
J_ASSERT(commit_transaction->t_nr_buffers <=
commit_transaction->t_outstanding_credits);
--
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