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authorPaul Gortmaker <paul.gortmaker@windriver.com>2013-08-01 15:01:06 -0400
committerJan Kara <jack@suse.cz>2013-08-01 23:25:38 +0200
commita91de85247dfa74a3f8a161e24ce21f23432cbda (patch)
tree965544f4ebc9f5503e6e5b3f30db0bb47bd8b01a /fs/jbd
parente729eac6f65e11c5f03b09adcc84bd5bcb230467 (diff)
downloadlinux-a91de85247dfa74a3f8a161e24ce21f23432cbda.tar.bz2
jbd: relocate assert after state lock in journal_commit_transaction()
The state lock is taken after we are doing an assert on the state value, not before. So we might in fact be doing an assert on a transient value. Ensure the state check is within the scope of the state lock being taken. Backport of jbd2 commit 3ca841c106fd6cd2c942985977a5d126434a8dd6 ("jbd2: relocate assert after state lock in journal_commit_transaction()") Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/jbd')
-rw-r--r--fs/jbd/commit.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/jbd/commit.c b/fs/jbd/commit.c
index 11bb11f48b3a..bb217dcb41af 100644
--- a/fs/jbd/commit.c
+++ b/fs/jbd/commit.c
@@ -340,13 +340,13 @@ void journal_commit_transaction(journal_t *journal)
J_ASSERT(journal->j_committing_transaction == NULL);
commit_transaction = journal->j_running_transaction;
- J_ASSERT(commit_transaction->t_state == T_RUNNING);
trace_jbd_start_commit(journal, commit_transaction);
jbd_debug(1, "JBD: starting commit of transaction %d\n",
commit_transaction->t_tid);
spin_lock(&journal->j_state_lock);
+ J_ASSERT(commit_transaction->t_state == T_RUNNING);
commit_transaction->t_state = T_LOCKED;
trace_jbd_commit_locking(journal, commit_transaction);