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| author | Christoph Hellwig <hch@lst.de> | 2017-12-31 16:42:12 +0100 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2018-05-26 09:16:44 +0200 |
| commit | dd67081b36a1fb41f632e2fe69992786396c9e77 (patch) | |
| tree | 825d0eb10f35b3ffe932a3a14c8ba6ac3df9cd98 /fs/pipe.c | |
| parent | b28fc82267aa07c34e019a72c42292d156654ee8 (diff) | |
| download | linux-dd67081b36a1fb41f632e2fe69992786396c9e77.tar.bz2 | |
pipe: convert to ->poll_mask
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/pipe.c')
| -rw-r--r-- | fs/pipe.c | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/fs/pipe.c b/fs/pipe.c index 39d6f431da83..bb0840e234f3 100644 --- a/fs/pipe.c +++ b/fs/pipe.c @@ -509,19 +509,22 @@ static long pipe_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) } } -/* No kernel lock held - fine */ -static __poll_t -pipe_poll(struct file *filp, poll_table *wait) +static struct wait_queue_head * +pipe_get_poll_head(struct file *filp, __poll_t events) { - __poll_t mask; struct pipe_inode_info *pipe = filp->private_data; - int nrbufs; - poll_wait(filp, &pipe->wait, wait); + return &pipe->wait; +} + +/* No kernel lock held - fine */ +static __poll_t pipe_poll_mask(struct file *filp, __poll_t events) +{ + struct pipe_inode_info *pipe = filp->private_data; + int nrbufs = pipe->nrbufs; + __poll_t mask = 0; /* Reading only -- no need for acquiring the semaphore. */ - nrbufs = pipe->nrbufs; - mask = 0; if (filp->f_mode & FMODE_READ) { mask = (nrbufs > 0) ? EPOLLIN | EPOLLRDNORM : 0; if (!pipe->writers && filp->f_version != pipe->w_counter) @@ -1020,7 +1023,8 @@ const struct file_operations pipefifo_fops = { .llseek = no_llseek, .read_iter = pipe_read, .write_iter = pipe_write, - .poll = pipe_poll, + .get_poll_head = pipe_get_poll_head, + .poll_mask = pipe_poll_mask, .unlocked_ioctl = pipe_ioctl, .release = pipe_release, .fasync = pipe_fasync, |