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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.h1114 static int _test_cmd_read_vevents(int fd, __u32 event_fd, __u32 nvevents, in _test_cmd_read_vevents()
1117 struct pollfd pollfd = { .fd = event_fd, .events = POLLIN }; in _test_cmd_read_vevents()
1134 bytes = read(event_fd, data, in _test_cmd_read_vevents()
1167 #define test_cmd_read_vevents(event_fd, nvevents, virt_id, prev_seq) \
1168 ASSERT_EQ(0, _test_cmd_read_vevents(self->fd, event_fd, nvevents, \
1170 #define test_err_read_vevents(_errno, event_fd, nvevents, virt_id, prev_seq) \
1172 _test_cmd_read_vevents(self->fd, event_fd, nvevents, \
1113 _test_cmd_read_vevents(int fd,__u32 event_fd,__u32 nvevents,__u32 virt_id,int * prev_seq) _test_cmd_read_vevents() argument
1166 test_cmd_read_vevents(event_fd,nvevents,virt_id,prev_seq) global() argument
1169 test_err_read_vevents(_errno,event_fd,nvevents,virt_id,prev_seq) global() argument
/linux/include/uapi/xen/
H A Dprivcmd.h121 __u32 event_fd; member
/linux/Documentation/admin-guide/cgroup-v1/
H A Dmemory.rst66 cgroup.event_control an interface for event_fd()
734 - write string like "<event_fd> <fd of memory.usage_in_bytes> <threshold>" to
759 - write string like "<event_fd> <fd of memory.oom_control>" to
861 - write string as "<event_fd> <fd of memory.pressure_level> <level[,mode]>"
/linux/kernel/events/
H A Dcore.c13890 int event_fd; in perf_check_permission()
13956 event_fd = get_unused_fd_flags(f_flags); in SYSCALL_DEFINE5()
13957 if (event_fd < 0) in SYSCALL_DEFINE5()
13958 return event_fd; in SYSCALL_DEFINE5()
14264 fd_install(event_fd, event_file); in SYSCALL_DEFINE5()
14265 return event_fd; in SYSCALL_DEFINE5()
14283 put_unused_fd(event_fd); in SYSCALL_DEFINE5()
13930 int event_fd; SYSCALL_DEFINE5() local