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timerfd: convert to ->poll_mask

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Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Christoph Hellwig 2018-03-05 07:23:51 -08:00
parent 9e42f195f5
commit 652fe8e876
1 changed files with 11 additions and 11 deletions
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20
fs/timerfd.c
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@ -227,20 +227,19 @@ static int timerfd_release(struct inode *inode, struct file *file)
return 0;
}
static __poll_t timerfd_poll(struct file *file, poll_table *wait)
static struct wait_queue_head *timerfd_get_poll_head(struct file *file,
__poll_t eventmask)
{
struct timerfd_ctx *ctx = file->private_data;
__poll_t events = 0;
unsigned long flags;
poll_wait(file, &ctx->wqh, wait);
return &ctx->wqh;
}
spin_lock_irqsave(&ctx->wqh.lock, flags);
if (ctx->ticks)
events |= EPOLLIN;
spin_unlock_irqrestore(&ctx->wqh.lock, flags);
static __poll_t timerfd_poll_mask(struct file *file, __poll_t eventmask)
{
struct timerfd_ctx *ctx = file->private_data;
return events;
return ctx->ticks ? EPOLLIN : 0;
}
static ssize_t timerfd_read(struct file *file, char __user *buf, size_t count,
@ -364,7 +363,8 @@ static long timerfd_ioctl(struct file *file, unsigned int cmd, unsigned long arg
static const struct file_operations timerfd_fops = {
.release = timerfd_release,
.poll = timerfd_poll,
.get_poll_head = timerfd_get_poll_head,
.poll_mask = timerfd_poll_mask,
.read = timerfd_read,
.llseek = noop_llseek,
.show_fdinfo = timerfd_show,