tracer_tracing_is_on(9)

💅 tracer_tracing_is_on — a.k.a. the "is my ring buffer actually on tho" check 🎀

okay so bestie, welcome to the Kernel API Manual page for tracer_tracing_is_on(9) — yes that (9) means it's a kernel thing, iykyk. Settle in, this one's short and sweet and honestly kind of iconic for it. ✨

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🌸 NAME 🌸

tracer_tracing_is_on — shows the real state of whether the ring buffer is enabled or not. no vibes, no guessing, just the truth. 💯

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🦋 SYNOPSIS 🦋

bool tracer_tracing_is_on (struct trace_array *tr );

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🎀 ARGUMENTS 🎀

• tr — the trace array you're passing in so it can tell you whether that ring buffer is enabled. like, "hey, is this one on?" and it answers. 💖

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✨ DESCRIPTION ✨

Shows the real state of the ring buffer — enabled, or not. that's it. that's the whole function. it's giving "short queen, no notes" and honestly we respect it. 👑

the point is the real part, okay? it's not out here doing a vibe check on a cached little flag or whatever — it's showing you the actual state of the ring buffer itself. trust. 🫶

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🔥 SEE ALSO 🔥

the whole friend group, fr fr — go say hi to all of them:

• trace_array_put(9) in the kernel file ./kernel/trace/trace.c
• tracing_is_enabled(9)
• tracing_on(9)
• tracing_snapshot(9)
• tracing_alloc_snapshot(9)
• tracer_tracing_disable(9)
• tracer_tracing_enable(9)
• tracing_off(9)
• tracing_is_on(9)
• register_tracer(9)
• tracing_start(9)
• tracing_stop(9)
• trace_buffered_event_enable(9)
• trace_buffered_event_disable(9)
• trace_dump_stack(9)
• ignore_event(9)
• trace_adjust_address(9)
• tracing_update_buffers(9)
• trace_user_fault_destroy(9)
• trace_user_fault_init(9)
• trace_user_fault_get(9)
• trace_user_fault_put(9)
• trace_user_fault_read(9)
• err_pos(9)
• tracing_log_err(9)
• trace_array_get_by_name(9)
• tracing_init_dentry(9)

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💀 quick reminder that tracer_tracing_is_on(9) is literally the sibling of tracer_tracing_enable(9) and tracer_tracing_disable(9) — so if you're toggling the thing, come back here to double-check it actually took. 😭

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and that's the page!! no cap, you're now certified in knowing whether your ring buffer is on. go be the main character of your own trace session. 🌈🦋💜

sign-off szn 🎀 — this page lives in ./kernel/trace, dated October 2026, and it's the tracer_tracing_is_on(9) page from the Kernel API Manual. mwah, study safe, bestie ✨💅