ring_buffer_empty(9)
π ring_buffer_empty β the vibe check for an empty ring buffer π
okay so bestie, this is the page for ring_buffer_empty(9) from the Kernel API Manual, and it is lowkey iconic in how tiny it is. the NAME is literally a question: ring_buffer_empty β is the ring buffer empty? π
no cap, that's the whole assignment.
β¨ SYNOPSIS β¨
here's the exact signature, character for character, because we do not play with code:
bool ring_buffer_empty (struct trace_buffer *buffer );
it's giving one argument, a bool, and zero extra drama β¨
π ARGUMENTS π
bufferβ the ring buffer you're testing, bestie. type:struct trace_buffer *. that's it, that's the argument, and it is literally the ring buffer to test π«Ά
π¦ SEE ALSO π¦
okay bestie, the SEE ALSO list is huge and every single one is invited to the group chat. no skipping, no cap, fr fr:
- Kernel file
./kernel/trace/ring_buffer.c ring_buffer_event_length(9)ring_buffer_event_data(9)rb_page_capacity(9)rb_subbuf_capacity(9)rb_subbuf_max_data_size(9)rb_subbuf_start(9)ring_buffer_event_time_stamp(9)ring_buffer_nr_dirty_pages(9)ring_buffer_wake_waiters(9)ring_buffer_wait(9)ring_buffer_poll_wait(9)rb_check_pages(9)rb_validate_buffer(9)__ring_buffer_alloc(9)__ring_buffer_alloc_range(9)__ring_buffer_alloc_remote(9)ring_buffer_free(9)ring_buffer_resize(9)rb_update_event(9)ring_buffer_nest_start(9)ring_buffer_nest_end(9)ring_buffer_unlock_commit(9)ring_buffer_lock_reserve(9)ring_buffer_discard_commit(9)ring_buffer_write(9)ring_buffer_record_disable(9)ring_buffer_record_enable(9)ring_buffer_record_off(9)ring_buffer_record_on(9)ring_buffer_record_is_on(9)ring_buffer_record_is_set_on(9)ring_buffer_record_is_on_cpu(9)ring_buffer_record_disable_cpu(9)ring_buffer_record_enable_cpu(9)ring_buffer_oldest_event_ts(9)ring_buffer_bytes_cpu(9)ring_buffer_entries_cpu(9)ring_buffer_overrun_cpu(9)ring_buffer_commit_overrun_cpu(9)ring_buffer_dropped_events_cpu(9)ring_buffer_read_events_cpu(9)ring_buffer_entries(9)ring_buffer_overruns(9)ring_buffer_iter_reset(9)ring_buffer_iter_empty(9)ring_buffer_peek(9)ring_buffer_iter_peek(9)ring_buffer_consume(9)ring_buffer_read_start(9)ring_buffer_read_finish(9)ring_buffer_iter_advance(9)ring_buffer_size(9)ring_buffer_max_event_size(9)ring_buffer_reset_cpu(9)ring_buffer_reset_online_cpus(9)ring_buffer_reset(9)ring_buffer_empty_cpu(9)ring_buffer_swap_cpu(9)ring_buffer_alloc_read_page(9)ring_buffer_free_read_page(9)ring_buffer_read_page(9)ring_buffer_read_page_data(9)ring_buffer_read_page_size(9)ring_buffer_subbuf_size_get(9)ring_buffer_subbuf_order_get(9)ring_buffer_subbuf_order_set(9)
π xoxo, your kernel bestie β source/version: ./kernel/trace, dated October 2026 π
π¦ where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms