diff options
Diffstat (limited to 'fs/eventpoll.c')
| -rw-r--r-- | fs/eventpoll.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/fs/eventpoll.c b/fs/eventpoll.c index b5e43e11f1e3..88473e6271ef 100644 --- a/fs/eventpoll.c +++ b/fs/eventpoll.c @@ -1746,11 +1746,12 @@ static int ep_poll(struct eventpoll *ep, struct epoll_event __user *events, int maxevents, long timeout) { int res = 0, eavail, timed_out = 0; - unsigned long flags; u64 slack = 0; wait_queue_entry_t wait; ktime_t expires, *to = NULL; + lockdep_assert_irqs_enabled(); + if (timeout > 0) { struct timespec64 end_time = ep_set_mstimeout(timeout); @@ -1763,7 +1764,7 @@ static int ep_poll(struct eventpoll *ep, struct epoll_event __user *events, * caller specified a non blocking operation. */ timed_out = 1; - spin_lock_irqsave(&ep->wq.lock, flags); + spin_lock_irq(&ep->wq.lock); goto check_events; } @@ -1772,7 +1773,7 @@ fetch_events: if (!ep_events_available(ep)) ep_busy_loop(ep, timed_out); - spin_lock_irqsave(&ep->wq.lock, flags); + spin_lock_irq(&ep->wq.lock); if (!ep_events_available(ep)) { /* @@ -1814,11 +1815,11 @@ fetch_events: break; } - spin_unlock_irqrestore(&ep->wq.lock, flags); + spin_unlock_irq(&ep->wq.lock); if (!schedule_hrtimeout_range(to, slack, HRTIMER_MODE_ABS)) timed_out = 1; - spin_lock_irqsave(&ep->wq.lock, flags); + spin_lock_irq(&ep->wq.lock); } __remove_wait_queue(&ep->wq, &wait); @@ -1828,7 +1829,7 @@ check_events: /* Is it worth to try to dig for events ? */ eavail = ep_events_available(ep); - spin_unlock_irqrestore(&ep->wq.lock, flags); + spin_unlock_irq(&ep->wq.lock); /* * Try to transfer events to user space. In case we get 0 events and |