Lines Matching refs:map_fd
32 int map_fd;
50 int map_fd;
73 int ring_buffer__add(struct ring_buffer *rb, int map_fd,
86 err = bpf_map_get_info_by_fd(map_fd, &info, &len);
90 map_fd, err);
96 map_fd);
113 r->map_fd = map_fd;
119 tmp = mmap(NULL, rb->page_size, PROT_READ | PROT_WRITE, MAP_SHARED, map_fd, 0);
123 map_fd, err);
137 tmp = mmap(NULL, (size_t)mmap_sz, PROT_READ, MAP_SHARED, map_fd, rb->page_size);
142 map_fd, err);
153 if (epoll_ctl(rb->epoll_fd, EPOLL_CTL_ADD, map_fd, e) < 0) {
157 map_fd, err);
183 ring_buffer__new(int map_fd, ring_buffer_sample_fn sample_cb, void *ctx,
205 err = ring_buffer__add(rb, map_fd, sample_cb, ctx);
351 static int user_ringbuf_map(struct user_ring_buffer *rb, int map_fd)
362 err = bpf_map_get_info_by_fd(map_fd, &info, &len);
365 pr_warn("user ringbuf: failed to get map info for fd=%d: %d\n", map_fd, err);
370 pr_warn("user ringbuf: map fd=%d is not BPF_MAP_TYPE_USER_RINGBUF\n", map_fd);
374 rb->map_fd = map_fd;
378 tmp = mmap(NULL, rb->page_size, PROT_READ, MAP_SHARED, map_fd, 0);
382 map_fd, err);
398 map_fd, rb->page_size);
402 map_fd, err);
411 if (epoll_ctl(rb->epoll_fd, EPOLL_CTL_ADD, map_fd, rb_epoll) < 0) {
413 pr_warn("user ringbuf: failed to epoll add map fd=%d: %d\n", map_fd, err);
421 user_ring_buffer__new(int map_fd, const struct user_ring_buffer_opts *opts)
442 err = user_ringbuf_map(rb, map_fd);