[PATCH 1/1 linux-next] jbd2: Fix sparse context imbalance warning

From: Fabian Frederick
Date: Thu Sep 18 2014 - 14:30:03 EST


spin_unlock after spin_lock only.

This fixes the following sparse warning:
fs/jbd2/transaction.c:1102:20: warning: context imbalance
in 'jbd2_journal_get_create_access' - different lock contexts for basic block

Signed-off-by: Fabian Frederick <fabf@xxxxxxxxx>
---
fs/jbd2/transaction.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c
index 5f09370..edb7f59 100644
--- a/fs/jbd2/transaction.c
+++ b/fs/jbd2/transaction.c
@@ -1091,6 +1091,7 @@ int jbd2_journal_get_create_access(handle_t *handle, struct buffer_head *bh)
JBUFFER_TRACE(jh, "file as BJ_Reserved");
spin_lock(&journal->j_list_lock);
__jbd2_journal_file_buffer(jh, transaction, BJ_Reserved);
+ spin_unlock(&journal->j_list_lock);
} else if (jh->b_transaction == journal->j_committing_transaction) {
/* first access by this transaction */
jh->b_modified = 0;
@@ -1098,8 +1099,8 @@ int jbd2_journal_get_create_access(handle_t *handle, struct buffer_head *bh)
JBUFFER_TRACE(jh, "set next transaction");
spin_lock(&journal->j_list_lock);
jh->b_next_transaction = transaction;
+ spin_unlock(&journal->j_list_lock);
}
- spin_unlock(&journal->j_list_lock);
jbd_unlock_bh_state(bh);

/*
--
1.9.1

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