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jbd: need to hold j_state_lock to updates to transaction t_state to T_COMMIT

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Updating the current transaction's t_state is 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@us.ibm.com>
Acked-by: Jan Kara <jack@ucw.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Mingming Cao 2008-05-14 16:05:41 -07:00 committed by Linus Torvalds
parent c3723ca387
commit 772279c5f1
1 changed files with 2 additions and 0 deletions
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fs/jbd/commit.c
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@ -470,7 +470,9 @@ void journal_commit_transaction(journal_t *journal)
* transaction! Now comes the tricky part: we need to write out * transaction! Now comes the tricky part: we need to write out
* metadata. Loop over the transaction's entire buffer list: * metadata. Loop over the transaction's entire buffer list:
*/ */
spin_lock(&journal->j_state_lock);
commit_transaction->t_state = T_COMMIT; commit_transaction->t_state = T_COMMIT;
spin_unlock(&journal->j_state_lock);
J_ASSERT(commit_transaction->t_nr_buffers <= J_ASSERT(commit_transaction->t_nr_buffers <=
commit_transaction->t_outstanding_credits); commit_transaction->t_outstanding_credits);