The following commit has been merged into the locking/urgent branch of tip: Commit-ID: 6ccc84f917d33312eb2846bd7b567639f585ad6d Gitweb: https://git.kernel.org/tip/6ccc84f917d33312eb2846bd7b567639f585ad6d Author: Thomas Gleixner <tglx@xxxxxxxxxxxxx> AuthorDate: Wed, 20 Jan 2021 11:35:19 +01:00 Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx> CommitterDate: Tue, 26 Jan 2021 15:10:59 +01:00 futex: Use pi_state_update_owner() in put_pi_state() No point in open coding it. This way it gains the extra sanity checks. Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Acked-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx> Cc: stable@xxxxxxxxxxxxxxx --- kernel/futex.c | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) diff --git a/kernel/futex.c b/kernel/futex.c index cfca221..a0fe63c 100644 --- a/kernel/futex.c +++ b/kernel/futex.c @@ -808,16 +808,10 @@ static void put_pi_state(struct futex_pi_state *pi_state) * and has cleaned up the pi_state already */ if (pi_state->owner) { - struct task_struct *owner; unsigned long flags; raw_spin_lock_irqsave(&pi_state->pi_mutex.wait_lock, flags); - owner = pi_state->owner; - if (owner) { - raw_spin_lock(&owner->pi_lock); - list_del_init(&pi_state->list); - raw_spin_unlock(&owner->pi_lock); - } + pi_state_update_owner(pi_state, NULL); rt_mutex_proxy_unlock(&pi_state->pi_mutex); raw_spin_unlock_irqrestore(&pi_state->pi_mutex.wait_lock, flags); }
