diff options
author | Ingo Molnar <mingo@kernel.org> | 2018-07-17 09:27:43 +0200 |
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committer | Ingo Molnar <mingo@kernel.org> | 2018-07-17 09:27:43 +0200 |
commit | 52b544bd386688177c41d53e748111c29d0ccc98 (patch) | |
tree | c2083582176e773084364af93cc44e0f94b6cde8 /fs/pipe.c | |
parent | afed7bcf9487bb28e2e2b016a195085c07416c0b (diff) | |
parent | 9d3cce1e8b8561fed5f383d22a4d6949db4eadbe (diff) |
Merge tag 'v4.18-rc5' into locking/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'fs/pipe.c')
-rw-r--r-- | fs/pipe.c | 22 |
1 files changed, 9 insertions, 13 deletions
diff --git a/fs/pipe.c b/fs/pipe.c index bb0840e234f3..39d6f431da83 100644 --- a/fs/pipe.c +++ b/fs/pipe.c @@ -509,22 +509,19 @@ static long pipe_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) } } -static struct wait_queue_head * -pipe_get_poll_head(struct file *filp, __poll_t events) -{ - struct pipe_inode_info *pipe = filp->private_data; - - return &pipe->wait; -} - /* No kernel lock held - fine */ -static __poll_t pipe_poll_mask(struct file *filp, __poll_t events) +static __poll_t +pipe_poll(struct file *filp, poll_table *wait) { + __poll_t mask; struct pipe_inode_info *pipe = filp->private_data; - int nrbufs = pipe->nrbufs; - __poll_t mask = 0; + int nrbufs; + + poll_wait(filp, &pipe->wait, wait); /* 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) @@ -1023,8 +1020,7 @@ const struct file_operations pipefifo_fops = { .llseek = no_llseek, .read_iter = pipe_read, .write_iter = pipe_write, - .get_poll_head = pipe_get_poll_head, - .poll_mask = pipe_poll_mask, + .poll = pipe_poll, .unlocked_ioctl = pipe_ioctl, .release = pipe_release, .fasync = pipe_fasync, |