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| author | Thomas Gleixner <tglx@linutronix.de> | 2018-07-12 22:19:58 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2018-07-12 22:19:58 +0200 |
| commit | c6bb11147eb09bd39f316c6062455b88c905ab6e (patch) | |
| tree | 5a1a6ec2970daef5fa8546741ced3ef3924bf807 /fs/timerfd.c | |
| parent | a8802d97e73346bc81609df9dfba7d3306f40d87 (diff) | |
| parent | b061c7a513afe14a68af41cec7c3476befc40e95 (diff) | |
| download | linux-stable-c6bb11147eb09bd39f316c6062455b88c905ab6e.tar.gz linux-stable-c6bb11147eb09bd39f316c6062455b88c905ab6e.tar.bz2 linux-stable-c6bb11147eb09bd39f316c6062455b88c905ab6e.zip | |
Merge branch 'fortglx/4.19/time' of https://git.linaro.org/people/john.stultz/linux into timers/core
Pull timekeeping updates from John Stultz:
- Make the timekeeping update more precise when NTP frequency is set
directly by updating the multiplier.
- Adjust selftests
Diffstat (limited to 'fs/timerfd.c')
| -rw-r--r-- | fs/timerfd.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/fs/timerfd.c b/fs/timerfd.c index 8bb926253f88..38c695ce385b 100644 --- a/fs/timerfd.c +++ b/fs/timerfd.c @@ -226,20 +226,21 @@ static int timerfd_release(struct inode *inode, struct file *file) kfree_rcu(ctx, rcu); return 0; } - -static struct wait_queue_head *timerfd_get_poll_head(struct file *file, - __poll_t eventmask) + +static __poll_t timerfd_poll(struct file *file, poll_table *wait) { struct timerfd_ctx *ctx = file->private_data; + __poll_t events = 0; + unsigned long flags; - return &ctx->wqh; -} + poll_wait(file, &ctx->wqh, wait); -static __poll_t timerfd_poll_mask(struct file *file, __poll_t eventmask) -{ - struct timerfd_ctx *ctx = file->private_data; + spin_lock_irqsave(&ctx->wqh.lock, flags); + if (ctx->ticks) + events |= EPOLLIN; + spin_unlock_irqrestore(&ctx->wqh.lock, flags); - return ctx->ticks ? EPOLLIN : 0; + return events; } static ssize_t timerfd_read(struct file *file, char __user *buf, size_t count, @@ -363,8 +364,7 @@ static long timerfd_ioctl(struct file *file, unsigned int cmd, unsigned long arg static const struct file_operations timerfd_fops = { .release = timerfd_release, - .get_poll_head = timerfd_get_poll_head, - .poll_mask = timerfd_poll_mask, + .poll = timerfd_poll, .read = timerfd_read, .llseek = noop_llseek, .show_fdinfo = timerfd_show, |