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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-01-11 11:51:49 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-01-11 11:51:49 -0800 |
| commit | 5ab551d662396f8437ec5aba12210b7a67eb492b (patch) | |
| tree | a4bbf500a6455afed4edf0bee6e1171f0e703ae4 /fs | |
| parent | ddb321a8dd158520d97ed1cbade1d4ac36b6af31 (diff) | |
| parent | 7f1a169b88f513e32a432ca0f85bfd282d117bd6 (diff) | |
| download | linux-5ab551d662396f8437ec5aba12210b7a67eb492b.tar.bz2 | |
Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Ingo Molnar:
"Misc fixes: group scheduling corner case fix, two deadline scheduler
fixes, effective_load() overflow fix, nested sleep fix, 6144 CPUs
system fix"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/fair: Fix RCU stall upon -ENOMEM in sched_create_group()
sched/deadline: Avoid double-accounting in case of missed deadlines
sched/deadline: Fix migration of SCHED_DEADLINE tasks
sched: Fix odd values in effective_load() calculations
sched, fanotify: Deal with nested sleeps
sched: Fix KMALLOC_MAX_SIZE overflow during cpumask allocation
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/notify/fanotify/fanotify_user.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c index c991616acca9..bff8567aa42d 100644 --- a/fs/notify/fanotify/fanotify_user.c +++ b/fs/notify/fanotify/fanotify_user.c @@ -259,16 +259,15 @@ static ssize_t fanotify_read(struct file *file, char __user *buf, struct fsnotify_event *kevent; char __user *start; int ret; - DEFINE_WAIT(wait); + DEFINE_WAIT_FUNC(wait, woken_wake_function); start = buf; group = file->private_data; pr_debug("%s: group=%p\n", __func__, group); + add_wait_queue(&group->notification_waitq, &wait); while (1) { - prepare_to_wait(&group->notification_waitq, &wait, TASK_INTERRUPTIBLE); - mutex_lock(&group->notification_mutex); kevent = get_one_event(group, count); mutex_unlock(&group->notification_mutex); @@ -289,7 +288,8 @@ static ssize_t fanotify_read(struct file *file, char __user *buf, if (start != buf) break; - schedule(); + + wait_woken(&wait, TASK_INTERRUPTIBLE, MAX_SCHEDULE_TIMEOUT); continue; } @@ -318,8 +318,8 @@ static ssize_t fanotify_read(struct file *file, char __user *buf, buf += ret; count -= ret; } + remove_wait_queue(&group->notification_waitq, &wait); - finish_wait(&group->notification_waitq, &wait); if (start != buf && ret != -EFAULT) ret = buf - start; return ret; |