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| author | Mark Brown <broonie@kernel.org> | 2019-01-29 12:04:54 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-01-29 12:04:54 +0000 |
| commit | d7c26e63cf78fef01d66ae848184c6ee5f4b8bbf (patch) | |
| tree | 3765745a38a7ae1a4a3a056dfc6c736e4c99271d /kernel/futex.c | |
| parent | a8233b6c1972e1959cf84a021aeb61ddcd23cc26 (diff) | |
| parent | f17b5f06cb92ef2250513a1e154c47b78df07d40 (diff) | |
Merge tag 'v5.0-rc4' into asoc-5.1
Linux 5.0-rc4
Diffstat (limited to 'kernel/futex.c')
| -rw-r--r-- | kernel/futex.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/kernel/futex.c b/kernel/futex.c index be3bff2315ff..fdd312da0992 100644 --- a/kernel/futex.c +++ b/kernel/futex.c @@ -1452,11 +1452,7 @@ static void mark_wake_futex(struct wake_q_head *wake_q, struct futex_q *q) if (WARN(q->pi_state || q->rt_waiter, "refusing to wake PI futex\n")) return; - /* - * Queue the task for later wakeup for after we've released - * the hb->lock. wake_q_add() grabs reference to p. - */ - wake_q_add(wake_q, p); + get_task_struct(p); __unqueue_futex(q); /* * The waiting task can free the futex_q as soon as q->lock_ptr = NULL @@ -1466,6 +1462,13 @@ static void mark_wake_futex(struct wake_q_head *wake_q, struct futex_q *q) * plist_del in __unqueue_futex(). */ smp_store_release(&q->lock_ptr, NULL); + + /* + * Queue the task for later wakeup for after we've released + * the hb->lock. wake_q_add() grabs reference to p. + */ + wake_q_add(wake_q, p); + put_task_struct(p); } /* |