On Mon, 2 Mar 2015 15:25:11 +0100
Daniel Wagner <daniel.wagner@xxxxxxxxxxxx> wrote:
> Annonate insert, remove and iterate function that we need
> blocked_lock_lock held.
>
> Signed-off-by: Daniel Wagner <daniel.wagner@xxxxxxxxxxxx>
> ---
> fs/locks.c | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/fs/locks.c b/fs/locks.c
> index f63aa92..4498da0 100644
> --- a/fs/locks.c
> +++ b/fs/locks.c
> @@ -592,11 +592,15 @@ posix_owner_key(struct file_lock *fl)
>
> static void locks_insert_global_blocked(struct file_lock *waiter)
> {
> + lockdep_assert_held(&blocked_lock_lock);
> +
> hash_add(blocked_hash, &waiter->fl_link, posix_owner_key(waiter));
> }
>
> static void locks_delete_global_blocked(struct file_lock *waiter)
> {
> + lockdep_assert_held(&blocked_lock_lock);
> +
> hash_del(&waiter->fl_link);
> }
>
> @@ -838,6 +842,8 @@ static int posix_locks_deadlock(struct file_lock *caller_fl,
> {
> int i = 0;
>
> + lockdep_assert_held(&blocked_lock_lock);
> +
> /*
> * This deadlock detector can't reasonably detect deadlocks with
> * FL_OFDLCK locks, since they aren't owned by a process, per-se.
Merged for v4.1.
--
Jeff Layton <jeff.layton@xxxxxxxxxxxxxxx>
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