nbcon_context_try_acquire(9)

💖 nbcon_context_try_acquire(9) 💖

okay so this is from the Kernel API Manual, and it's all about trying to acquire the nbcon console. very main character energy for a console function, honestly 🫶

✨ NAME ✨

nbcon_context_try_acquire — try to acquire the nbcon console. that's the whole assignment, bestie 💅

🌸 SYNOPSIS 🌸

bool nbcon_context_try_acquire (struct nbcon_context *ctxt , bool
       is_reacquire );

🎀 ARGUMENTS 🎀

• ctxt — the context of the caller, aka the vibe passport for whoever's asking 🫶
• is_reacquire — this acquire is a reacquire. no cap, that's literally the whole flag 💅

🦋 CONTEXT 🦋

this whole thing happens under ctxt->con->device_lock or local_irq_save. noted, bestie ✨

🔥 RETURN 🔥

True if the console was acquired. False otherwise. simple as that, fr fr 👑

💜 DESCRIPTION 💜

okay so here's the tea: if the caller allowed an unsafe hostile takeover, then on success the caller should check the current console state to see if it is in an unsafe state. yes, that's the dramatic part — on success, go check the console state if that unsafe hostile takeover was allowed.

otherwise, on success the caller may assume the console is not in an unsafe state. periodt. 🌈

🌈 SEE ALSO 🌈

the whole squad is here, iykyk:

• Kernel file: ./kernel/printk/nbcon.c
• nbcon_state_set(9)
• nbcon_state_read(9)
• nbcon_state_try_cmpxchg(9)
• nbcon_seq_read(9)
• nbcon_seq_force(9)
• nbcon_seq_try_update(9)
• nbcon_context_try_acquire_direct(9)
• nbcon_context_try_acquire_requested(9)
• nbcon_context_try_acquire_handover(9)
• nbcon_context_try_acquire_hostile(9)
• nbcon_context_release(9)
• nbcon_context_can_proceed(9)
• nbcon_can_proceed(9)
• __nbcon_context_update_unsafe(9)
• nbcon_enter_unsafe(9)
• nbcon_exit_unsafe(9)
• nbcon_reacquire_nobuf(9)
• nbcon_emit_next_record(9)
• nbcon_kthread_should_wakeup(9)
• nbcon_kthread_func(9)
• nbcon_irq_work(9)
• nbcon_kthreads_wake(9)
• nbcon_kthread_create(9)
• nbcon_get_cpu_emergency_nesting(9)
• nbcon_get_default_prio(9)
• nbcon_allow_unsafe_takeover(9)
• nbcon_legacy_emit_next_record(9)
• __nbcon_atomic_flush_pending_con(9)
• nbcon_atomic_flush_pending_con(9)
• __nbcon_atomic_flush_pending(9)
• nbcon_atomic_flush_pending(9)
• nbcon_atomic_flush_unsafe(9)
• nbcon_cpu_emergency_enter(9)
• nbcon_cpu_emergency_exit(9)
• nbcon_alloc(9)
• nbcon_free(9)
• nbcon_device_try_acquire(9)
• nbcon_device_release(9)
• nbcon_kdb_try_acquire(9)
• nbcon_kdb_release(9)
• nbcon_write_context_is_braille(9)
• nbcon_braille_try_acquire(9)
• nbcon_braille_release(9)

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🫶 okay that's the whole page, bestie — source/version is ./kernel/printk, dated October 2026, and this one is nbcon_context_try_acquire(9) signing off. mwah 💅✨