Re: [PATCH] jbd2: Fix lockdep annotation in add_transaction_credits()

On Mon, Sep 19, 2016 at 02:30:43PM +0200, Jan Kara wrote:

Thomas has reported a lockdep splat hitting in
add_transaction_credits(). The problem is that that function calls
jbd2_might_wait_for_commit() while holding j_state_lock which is wrong
(we do not really wait for transaction commit while holding that lock).

Fix the problem by moving jbd2_might_wait_for_commit() into places where
we are ready to wait for transaction commit and thus j_state_lock is
unlocked.

Fixes: 1eaa566d368b214d99cbb973647c1b0b8102a9ae
Reported-by: Thomas Gleixner <redacted>
Signed-off-by: Jan Kara <jack@suse.cz>

Thanks, applied.

						- Ted