ring_buffer_unlock_commit(9)

🎀 ring_buffer_unlock_commit(9) 🎀

okay bestie, gather 'round — this page is straight out of the Kernel API Manual, section 9, and it's literally the "finish the reservation and let the locks go" moment. 🦋✨

🌸 NAME 🌸

ring_buffer_unlock_commit — commit a reserved

✨ SYNOPSIS ✨

int ring_buffer_unlock_commit (struct trace_buffer *buffer );

🫶 ARGUMENTS 🫶

• buffer — the buffer to commit to. That's the one, bestie. 💖

💅 DESCRIPTION 💅

This commits the data to the ring buffer, and releases any locks held. No cap, it's giving "clean exit, locks released, we're done here." 🔥

It must be paired with ring_buffer_lock_reserve. Like, they're a matching set — do not come between them. 🫶

🌈 SEE ALSO 🌈

The kernel file is ./kernel/trace/ring_buffer.c, and your reading list is lowkey huge:

• 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_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(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)

xoxo, your kernel bestie 💖 — source/version: ./kernel/trace; dated October 2026. ring_buffer_unlock_commit(9) out. 💅