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jbd2: Fix barrier fallback code to re-lock the buffer head

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If the device doesn't support write barriers, the write is retried
without ordered mode.  But the buffer head needs to be re-locked or
submit_bh will fail with on BUG(!buffer_locked(bh)).

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
This commit is contained in:
Theodore Ts'o 2008-06-03 22:31:11 -04:00
parent cd0b6a39a1
commit 034772b068
1 changed files with 1 additions and 0 deletions
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fs/jbd2/commit.c
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@ -168,6 +168,7 @@ static int journal_submit_commit_record(journal_t *journal,
spin_unlock(&journal->j_state_lock);
/* And try again, without the barrier */
lock_buffer(bh);
set_buffer_uptodate(bh);
set_buffer_dirty(bh);
ret = submit_bh(WRITE, bh);