diff options
| -rw-r--r-- | block/kyber-iosched.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/block/kyber-iosched.c b/block/kyber-iosched.c index f58cab82105b..db5bfc6342d3 100644 --- a/block/kyber-iosched.c +++ b/block/kyber-iosched.c @@ -541,9 +541,17 @@ static int kyber_get_domain_token(struct kyber_queue_data *kqd, /* * Try again in case a token was freed before we got on the wait - * queue. + * queue. The waker may have already removed the entry from the + * wait queue, but list_del_init() is okay with that. */ nr = __sbitmap_queue_get(domain_tokens); + if (nr >= 0) { + unsigned long flags; + + spin_lock_irqsave(&ws->wait.lock, flags); + list_del_init(&wait->entry); + spin_unlock_irqrestore(&ws->wait.lock, flags); + } } return nr; } |