| /linux/io_uring/ |
| H A D | poll.c | 118 return &req->apoll->poll; in io_poll_get_single()
131 static void io_init_poll_iocb(struct io_poll *poll, __poll_t events) in io_init_poll_iocb() argument
133 poll->head = NULL; in io_init_poll_iocb()
136 poll->events = events | IO_POLL_UNMASK; in io_init_poll_iocb()
137 INIT_LIST_HEAD(&poll->wait.entry); in io_init_poll_iocb()
138 init_waitqueue_func_entry(&poll->wait, io_poll_wake); in io_init_poll_iocb()
141 static void io_poll_remove_waitq(struct io_poll *poll) in io_poll_remove_waitq() argument
149 list_del_init(&poll->wait.entry); in io_poll_remove_waitq()
157 smp_store_release(&poll->head, NULL); in io_poll_remove_waitq()
160 static inline void io_poll_remove_entry(struct io_poll *poll) in io_poll_remove_entry() argument
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| /linux/drivers/tty/vt/ |
| H A D | vc_screen.c | 90 struct vcs_poll_data *poll = in vcs_notifier() local
92 int currcons = poll->cons_num; in vcs_notifier()
113 poll->event = code; in vcs_notifier()
114 wake_up_interruptible(&poll->waitq); in vcs_notifier()
115 kill_fasync(&poll->fasync, SIGIO, fa_band); in vcs_notifier()
120 vcs_poll_data_free(struct vcs_poll_data *poll) in vcs_poll_data_free() argument
122 unregister_vt_notifier(&poll->notifier); in vcs_poll_data_free()
123 kfree(poll); in vcs_poll_data_free()
129 struct vcs_poll_data *poll = file->private_data, *kill = NULL; in vcs_poll_data_get() local
131 if (poll) in vcs_poll_data_get()
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| /linux/Documentation/userspace-api/media/v4l/ |
| H A D | func-poll.rst | 4 .. _func-poll:
7 V4L2 poll()
13 v4l2-poll - Wait for some event on a file descriptor
20 #include <sys/poll.h>
22 .. c:function:: int poll( struct pollfd *ufds, unsigned int nfds, int timeout )
31 With the :c:func:`poll()` function applications can suspend execution
44 On success :c:func:`poll()` returns the number of file descriptors
52 :ref:`VIDIOC_STREAMON <VIDIOC_STREAMON>` the :c:func:`poll()`
57 :c:func:`poll()` function succeeds and sets the ``POLLERR`` flag in
59 :c:func:`poll()` to succeed as well, but it sets the ``POLLOUT`` and
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| /linux/include/trace/events/ |
| H A D | scmi.h | 39 bool poll, int inflight),
40 TP_ARGS(transfer_id, msg_id, protocol_id, seq, poll, inflight),
47 __field(bool, poll)
56 __entry->poll = poll;
62 __entry->transfer_id, __entry->poll, __entry->inflight)
67 u32 timeout, bool poll),
68 TP_ARGS(transfer_id, msg_id, protocol_id, seq, timeout, poll),
76 __field(bool, poll)
85 __entry->poll = poll;
90 __entry->transfer_id, __entry->timeout, __entry->poll)
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| /linux/Documentation/userspace-api/media/mediactl/ |
| H A D | request-func-poll.rst | 4 .. _request-func-poll:
7 request poll()
13 request-poll - Wait for some event on a file descriptor
20 #include <sys/poll.h>
22 .. c:function:: int poll( struct pollfd *ufds, unsigned int nfds, int timeout )
39 With the :c:func:`poll()` function applications can wait
42 On success :c:func:`poll()` returns the number of file
50 Attempting to poll for a request that is not yet queued will
56 On success, :c:func:`poll()` returns the number of
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| /linux/Documentation/userspace-api/media/cec/ |
| H A D | cec-func-poll.rst | 4 .. _cec-func-poll:
7 cec poll()
13 cec-poll - Wait for some event on a file descriptor
20 #include <sys/poll.h>
22 .. c:function:: int poll( struct pollfd *ufds, unsigned int nfds, int timeout )
39 With the :c:func:`poll()` function applications can wait for CEC
42 On success :c:func:`poll()` returns the number of file descriptors
53 For more details see the :c:func:`poll()` manual page.
58 On success, :c:func:`poll()` returns the number structures which have
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| /linux/drivers/iio/common/hid-sensors/ |
| H A D | hid-sensor-attributes.c | 164 st->poll.report_id, in hid_sensor_read_poll_value()
165 st->poll.index, sizeof(value), &value); in hid_sensor_read_poll_value()
170 if (st->poll.units == HID_USAGE_SENSOR_UNITS_SECOND) in hid_sensor_read_poll_value()
185 st->poll.report_id, in hid_sensor_read_samp_freq_value()
186 st->poll.index, sizeof(value), &value); in hid_sensor_read_samp_freq_value()
191 if (st->poll.units == HID_USAGE_SENSOR_UNITS_MILLISECOND) in hid_sensor_read_samp_freq_value()
193 else if (st->poll.units == HID_USAGE_SENSOR_UNITS_SECOND) in hid_sensor_read_samp_freq_value()
216 if (st->poll.units == HID_USAGE_SENSOR_UNITS_MILLISECOND) in hid_sensor_write_samp_freq_value()
218 else if (st->poll.units == HID_USAGE_SENSOR_UNITS_SECOND) in hid_sensor_write_samp_freq_value()
223 ret = sensor_hub_set_feature(st->hsdev, st->poll.report_id, in hid_sensor_write_samp_freq_value()
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| /linux/arch/arm/boot/dts/microchip/ |
| H A D | at91-natte.dtsi | 74 poll-interval = <20000>;
90 poll-interval = <20000>;
106 poll-interval = <20000>;
122 poll-interval = <20000>;
138 poll-interval = <20000>;
154 poll-interval = <20000>;
170 poll-interval = <20000>;
186 poll-interval = <20000>;
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| /linux/drivers/input/misc/ |
| H A D | wm831x-on.c | 45 int poll, ret; in wm831x_poll_on() local
49 poll = !(ret & WM831X_ON_PIN_STS); in wm831x_poll_on()
51 input_report_key(wm831x_on->dev, KEY_POWER, poll); in wm831x_poll_on()
55 poll = 1; in wm831x_poll_on()
58 if (poll) in wm831x_poll_on()
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| /linux/Documentation/translations/zh_CN/accounting/ |
| H A D | psi.rst | 63 用户可注册触发器，通过poll()监控资源压力是否超过门限。
69 所打开的文件描述符用于等待事件，可使用select()、poll()、epoll()。
102 #include <poll.h>
128 n = poll(&fds, 1, -1);
130 printf("poll error: %s\n", strerror(errno));
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| /linux/tools/testing/selftests/powerpc/nx-gzip/ |
| H A D | gzip_vas.c | 137 long poll = 0; in nx_wait_for_csb() local
153 ++poll; in nx_wait_for_csb()
167 if (poll > CSB_MAX_POLL) in nx_wait_for_csb()
186 (int) poll); in nx_wait_for_csb()
188 (int) poll); in nx_wait_for_csb()
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| /linux/drivers/input/ |
| H A D | input-poller.c | 17 void (*poll)(struct input_dev *dev); member
43 poller->poll(poller->input); in input_dev_poller_work()
59 poller->poll(poller->input); in input_dev_poller_start()
88 poller->poll = poll_fn; in input_setup_polling()
179 static DEVICE_ATTR(poll, 0644,
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| /linux/drivers/dma-buf/ |
| H A D | dma-buf.c | 306 struct dma_buf *dmabuf = container_of(dcb->poll, struct dma_buf, poll); in dma_buf_poll_cb()
309 spin_lock_irqsave(&dcb->poll->lock, flags); in dma_buf_poll_cb()
310 wake_up_locked_poll(dcb->poll, dcb->active); in dma_buf_poll_cb()
312 spin_unlock_irqrestore(&dcb->poll->lock, flags); in dma_buf_poll_cb()
337 static __poll_t dma_buf_poll(struct file *file, poll_table *poll) in dma_buf_poll() argument
349 poll_wait(file, &dmabuf->poll, poll); in dma_buf_poll()
351 events = poll_requested_events(poll) & (EPOLLIN | EPOLLOUT); in dma_buf_poll()
361 spin_lock_irq(&dmabuf->poll.lock); in dma_buf_poll()
366 spin_unlock_irq(&dmabuf->poll.lock); in dma_buf_poll()
384 spin_lock_irq(&dmabuf->poll.lock); in dma_buf_poll()
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| /linux/drivers/isdn/mISDN/ |
| H A D | dsp_core.c | 167 static int poll; variable
173 module_param(poll, uint, S_IRUGO | S_IWUSR);
1127 dsp_poll = poll; in dsp_init()
1131 "maximum.\n", __func__, poll, MAX_POLL); in dsp_init()
1141 dsp_tics = poll * HZ / 8000; in dsp_init()
1142 if (dsp_tics * 8000 != poll * HZ) { in dsp_init()
1145 "%d HZ.\n", poll, HZ); in dsp_init()
1150 poll = 8; in dsp_init()
1151 while (poll <= MAX_POLL) { in dsp_init()
1152 tics = (poll * HZ) / 8000; in dsp_init()
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| /linux/drivers/vhost/ |
| H A D | vhost.c | 165 struct vhost_poll *poll; in vhost_poll_func() local
167 poll = container_of(pt, struct vhost_poll, table); in vhost_poll_func()
168 poll->wqh = wqh; in vhost_poll_func()
169 add_wait_queue(wqh, &poll->wait); in vhost_poll_func()
175 struct vhost_poll *poll = container_of(wait, struct vhost_poll, wait); in vhost_poll_wakeup() local
176 struct vhost_work *work = &poll->work; in vhost_poll_wakeup()
178 if (!(key_to_poll(key) & poll->mask)) in vhost_poll_wakeup()
181 if (!poll->dev->use_worker) in vhost_poll_wakeup()
184 vhost_poll_queue(poll); in vhost_poll_wakeup()
197 void vhost_poll_init(struct vhost_poll *poll, vhost_work_fn_t fn, in vhost_poll_init() argument
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| H A D | net.c | 139 struct vhost_poll poll[VHOST_NET_VQ_MAX]; member
413 vhost_poll_queue(&vq->poll); in vhost_zerocopy_complete()
438 struct vhost_poll *poll = n->poll + (nvq - n->vqs); in vhost_net_disable_vq() local
441 vhost_poll_stop(poll); in vhost_net_disable_vq()
449 struct vhost_poll *poll = n->poll + (nvq - n->vqs); in vhost_net_enable_vq() local
456 return vhost_poll_start(poll, sock->file); in vhost_net_enable_vq()
532 vhost_poll_queue(&vq->poll); in vhost_net_busy_poll_try_queue()
535 vhost_poll_queue(&vq->poll); in vhost_net_busy_poll_try_queue()
791 vhost_poll_queue(&vq->poll); in handle_tx_copy()
892 vhost_poll_queue(&vq->poll); in handle_tx_zerocopy()
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| /linux/drivers/pci/hotplug/ |
| H A D | cpcihp_zt5550.c | 42 static bool poll; variable
201 if (!poll) { in zt5550_hc_init_one()
308 module_param(poll, bool, 0644);
309 MODULE_PARM_DESC(poll, "#ENUM polling mode enabled or not");
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| /linux/drivers/comedi/drivers/ |
| H A D | pcl816.c | 454 unsigned int poll; in pcl816_ai_poll() local
459 poll = comedi_isadma_poll(dma); in pcl816_ai_poll()
460 poll = comedi_bytes_to_samples(s, poll); in pcl816_ai_poll()
461 if (poll > devpriv->ai_poll_ptr) { in pcl816_ai_poll()
465 poll - devpriv->ai_poll_ptr); in pcl816_ai_poll()
467 devpriv->ai_poll_ptr = poll; in pcl816_ai_poll()
640 s->poll = pcl816_ai_poll; in pcl816_attach()
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| /linux/drivers/staging/octeon/ |
| H A D | ethernet-mdio.c | 93 if (priv->poll) in cvm_oct_adjust_link()
94 priv->poll(dev); in cvm_oct_adjust_link()
115 priv->poll = NULL; in cvm_oct_common_stop()
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| /linux/include/linux/ |
| H A D | poll.h | 75 return file->f_op->poll; in file_can_poll()
80 if (unlikely(!file->f_op->poll)) in vfs_poll()
82 return file->f_op->poll(file, pt); in vfs_poll()
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| H A D | sysctl.h | 154 static inline void *proc_sys_poll_event(struct ctl_table_poll *poll) in proc_sys_poll_event() argument
156 return (void *)(unsigned long)atomic_read(&poll->event); in proc_sys_poll_event()
173 struct ctl_table_poll *poll; member
246 void proc_sys_poll_notify(struct ctl_table_poll *poll);
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| /linux/Documentation/translations/zh_CN/networking/ |
| H A D | msg_zerocopy.rst | 111 从错误队列读取始终是一个非阻塞操作。poll 调用用于阻塞，直到出现错误。它会在其输出标志中
118 if (poll(&pfd, 1, -1) != 1 || pfd.revents & POLLERR == 0)
119 error(1, errno, "poll");
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| /linux/arch/um/drivers/ |
| H A D | ubd_user.c | 71 return poll(&kernel_pollfd, 1, timeout); in ubd_read_poll()
76 return poll(&kernel_pollfd, 1, timeout); in ubd_write_poll()
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| /linux/Documentation/translations/zh_CN/filesystems/ |
| H A D | inotify.rst | 50 - 将无法知晓事件的顺序。文件 foo 和文件 bar 上的事件会触发两个文件描述符上的 poll()，
77 基本的文件 I/O 操作以及 poll/select 操作。获取文件描述符和管理监控项既可以通过设备文件来
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| /linux/tools/testing/selftests/pidfd/ |
| H A D | pidfd_info_test.c | 8 #include <poll.h>
209 nevents = poll(&fds, 1, -1); in TEST_F()
276 * We can't poll and wait for the old thread-group in TEST_F()
284 nevents = poll(&fds, 1, 10000 /* wait 5 seconds */); in TEST_F()
313 * exited. So we can't poll before we have taken down the whole in TEST_F()
352 nevents = poll(&fds, 1, -1); in TEST_F()
451 * We can't poll and wait for the old thread-group in TEST_F()
458 * thread-group leaders struct pid. Calling poll after in TEST_F()
464 nevents = poll(&fds, 1, 10000 /* wait 5 seconds */); in TEST_F()
491 nevents = poll( in TEST_F()
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