From: Christoph Hellwig <hch@lst.de>
To: viro@zeniv.linux.org.uk
Cc: Avi Kivity <avi@scylladb.com>,
linux-aio@kvack.org, linux-fsdevel@vger.kernel.org,
netdev@vger.kernel.org, linux-api@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH 27/30] pipe: convert to ->poll_mask
Date: Wed, 28 Mar 2018 09:29:23 +0200 [thread overview]
Message-ID: <20180328072926.17131-28-hch@lst.de> (raw)
In-Reply-To: <20180328072926.17131-1-hch@lst.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
fs/pipe.c | 22 +++++++++++++---------
1 file changed, 13 insertions(+), 9 deletions(-)
diff --git a/fs/pipe.c b/fs/pipe.c
index 7b1954caf388..81937590ea0a 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)
@@ -1015,7 +1018,8 @@ 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,
--
2.14.2
next prev parent reply other threads:[~2018-03-28 7:31 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-28 7:28 aio poll and a new in-kernel poll API V7 Christoph Hellwig
2018-03-28 7:28 ` [PATCH 01/30] fs: unexport poll_schedule_timeout Christoph Hellwig
2018-03-28 7:28 ` [PATCH 02/30] fs: cleanup do_pollfd Christoph Hellwig
2018-03-28 7:28 ` [PATCH 03/30] fs: update documentation to mention __poll_t and match the code Christoph Hellwig
2018-03-28 7:29 ` [PATCH 04/30] fs: add new vfs_poll and file_can_poll helpers Christoph Hellwig
2018-03-28 7:29 ` [PATCH 05/30] fs: introduce new ->get_poll_head and ->poll_mask methods Christoph Hellwig
2018-03-28 7:29 ` [PATCH 06/30] aio: simplify cancellation Christoph Hellwig
2018-03-28 7:29 ` [PATCH 07/30] aio: add delayed cancel support Christoph Hellwig
2018-03-28 16:35 ` Al Viro
2018-03-28 21:34 ` Al Viro
2018-03-29 8:53 ` Christoph Hellwig
2018-03-29 14:25 ` Al Viro
2018-03-29 18:08 ` Christoph Hellwig
2018-03-28 7:29 ` [PATCH 08/30] aio: implement IOCB_CMD_POLL Christoph Hellwig
2018-03-28 7:29 ` [PATCH 09/30] net: refactor socket_poll Christoph Hellwig
2018-03-28 7:29 ` [PATCH 10/30] net: add support for ->poll_mask in proto_ops Christoph Hellwig
2018-03-28 7:29 ` [PATCH 11/30] net: remove sock_no_poll Christoph Hellwig
2018-03-28 7:29 ` [PATCH 12/30] net/tcp: convert to ->poll_mask Christoph Hellwig
2018-03-28 7:29 ` [PATCH 13/30] net/unix: " Christoph Hellwig
2018-03-28 7:29 ` [PATCH 14/30] net: convert datagram_poll users tp ->poll_mask Christoph Hellwig
2018-03-28 7:29 ` [PATCH 15/30] net/dccp: convert to ->poll_mask Christoph Hellwig
2018-03-28 7:29 ` [PATCH 16/30] net/atm: " Christoph Hellwig
2018-03-28 7:29 ` [PATCH 17/30] net/vmw_vsock: " Christoph Hellwig
2018-03-28 7:29 ` [PATCH 18/30] net/tipc: " Christoph Hellwig
2018-03-28 7:29 ` [PATCH 19/30] net/sctp: " Christoph Hellwig
2018-03-28 7:29 ` [PATCH 20/30] net/bluetooth: " Christoph Hellwig
2018-03-28 7:29 ` [PATCH 21/30] net/caif: " Christoph Hellwig
2018-03-28 7:29 ` [PATCH 22/30] net/nfc: " Christoph Hellwig
2018-03-28 7:29 ` [PATCH 23/30] net/phonet: " Christoph Hellwig
2018-03-28 7:29 ` [PATCH 24/30] net/iucv: " Christoph Hellwig
2018-03-28 7:29 ` [PATCH 25/30] net/rxrpc: " Christoph Hellwig
2018-03-28 7:29 ` [PATCH 26/30] crypto: af_alg: " Christoph Hellwig
2018-03-28 7:29 ` Christoph Hellwig [this message]
2018-03-28 7:29 ` [PATCH 28/30] eventfd: switch " Christoph Hellwig
2018-03-28 7:29 ` [PATCH 29/30] timerfd: convert " Christoph Hellwig
2018-03-28 7:29 ` [PATCH 30/30] random: " Christoph Hellwig
2018-03-29 20:32 aio poll and a new in-kernel poll API V8 Christoph Hellwig
2018-03-29 20:33 ` [PATCH 27/30] pipe: convert to ->poll_mask Christoph Hellwig
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