diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/eventpoll.c | 4 | ||||
| -rw-r--r-- | fs/signalfd.c | 11 |
2 files changed, 15 insertions, 0 deletions
diff --git a/fs/eventpoll.c b/fs/eventpoll.c index aabdfc38cf2..34bbfc6dd8d 100644 --- a/fs/eventpoll.c +++ b/fs/eventpoll.c @@ -842,6 +842,10 @@ static int ep_poll_callback(wait_queue_t *wait, unsigned mode, int sync, void *k struct epitem *epi = ep_item_from_wait(wait); struct eventpoll *ep = epi->ep; + /* the caller holds eppoll_entry->whead->lock */ + if ((unsigned long)key & POLLFREE) + list_del_init(&wait->task_list); + spin_lock_irqsave(&ep->lock, flags); /* diff --git a/fs/signalfd.c b/fs/signalfd.c index 492465b451d..79c1eea98a3 100644 --- a/fs/signalfd.c +++ b/fs/signalfd.c @@ -30,6 +30,17 @@ #include <linux/signalfd.h> #include <linux/syscalls.h> +void signalfd_cleanup(struct sighand_struct *sighand) +{ + wait_queue_head_t *wqh = &sighand->signalfd_wqh; + + if (likely(!waitqueue_active(wqh))) + return; + + /* wait_queue_t->func(POLLFREE) should do remove_wait_queue() */ + wake_up_poll(wqh, POLLHUP | POLLFREE); +} + struct signalfd_ctx { sigset_t sigmask; }; |