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Commit 034772b0 authored by Theodore Ts'o's avatar Theodore Ts'o
Browse files

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



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: default avatar"Theodore Ts'o" <tytso@mit.edu>
parent cd0b6a39

fs/jbd2/commit.c

+1 −0
Original line number Original line Diff line number Diff line
@@ -168,6 +168,7 @@ static int journal_submit_commit_record(journal_t *journal, 
		spin_unlock(&journal->j_state_lock);

		spin_unlock(&journal->j_state_lock);





		/* And try again, without the barrier */

		/* And try again, without the barrier */

		lock_buffer(bh);

		set_buffer_uptodate(bh);

		set_buffer_uptodate(bh);

		set_buffer_dirty(bh);

		set_buffer_dirty(bh);

		ret = submit_bh(WRITE, bh);

		ret = submit_bh(WRITE, bh);