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Searched refs:event_fd (Results 1 – 9 of 9) sorted by relevance

/linux/tools/testing/selftests/filesystems/
H A Ddnotify_test.c9 static volatile int event_fd; variable
13 event_fd = si->si_fd; in handler()
33 printf("Got event on fd=%d\n", event_fd); in main()
/linux/Documentation/userspace-api/gpio/
H A Dgpio-lineevent-data-read.rst21 ``int read(int event_fd, void *buf, size_t count)``
26 ``event_fd``
76 The `read()` will block if no event is available and the ``event_fd`` has not
79 The presence of an event can be tested for by checking that the ``event_fd`` is
H A Dgpio-handle-get-line-values-ioctl.rst54 substituting the ``event_fd`` for the ``handle_fd``. As there is only
H A Dchardev_v1.rst98 as ``event_fd``.
/linux/samples/bpf/
H A Dtask_fd_query_user.c96 int err, event_fd; in test_debug_fs_kprobe() local
100 event_fd = bpf_link__fd(links[link_idx]); in test_debug_fs_kprobe()
101 err = bpf_task_fd_query(getpid(), event_fd, 0, buf, &len, in test_debug_fs_kprobe()
/linux/tools/testing/selftests/iommu/
H A Diommufd_utils.h1113 static int _test_cmd_read_vevents(int fd, __u32 event_fd, __u32 nvevents, in _test_cmd_read_vevents() argument
1116 struct pollfd pollfd = { .fd = event_fd, .events = POLLIN }; in _test_cmd_read_vevents()
1133 bytes = read(event_fd, data, in _test_cmd_read_vevents()
1166 #define test_cmd_read_vevents(event_fd, nvevents, virt_id, prev_seq) \ argument
1167 ASSERT_EQ(0, _test_cmd_read_vevents(self->fd, event_fd, nvevents, \
1169 #define test_err_read_vevents(_errno, event_fd, nvevents, virt_id, prev_seq) \ argument
1171 _test_cmd_read_vevents(self->fd, event_fd, nvevents, \
/linux/include/uapi/xen/
H A Dprivcmd.h121 __u32 event_fd; member
/linux/drivers/xen/
H A Dprivcmd.c1361 kioeventfd->eventfd = eventfd_ctx_fdget(ioeventfd->event_fd); in privcmd_ioeventfd_assign()
1402 eventfd = eventfd_ctx_fdget(ioeventfd->event_fd); in privcmd_ioeventfd_deassign()
/linux/kernel/events/
H A Dcore.c13468 int event_fd; in SYSCALL_DEFINE5() local
13532 event_fd = get_unused_fd_flags(f_flags); in SYSCALL_DEFINE5()
13533 if (event_fd < 0) in SYSCALL_DEFINE5()
13534 return event_fd; in SYSCALL_DEFINE5()
13834 fd_install(event_fd, event_file); in SYSCALL_DEFINE5()
13835 return event_fd; in SYSCALL_DEFINE5()
13853 put_unused_fd(event_fd); in SYSCALL_DEFINE5()