console_lock...nning_enable(9)

💅 console_lock...nning_enable(9) — a Kernel API Manual moment 🎀

okay so bestie, welcome to the Kernel API Manual, and today's main character is console_lock_spinning_enable ✨ she's short, she's sweet, she's literally one function, and she's carrying the whole vibe check for the console lock 🫶

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✨ NAME ✨

console_lock_spinning_enable — marks the beginning of the code section where another thread might safely busy wait 👀 no cap, that's the whole job

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🌸 SYNOPSIS 🌸

void console_lock_spinning_enable (void );

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🦋 ARGUMENTS 🦋

• void — literally no arguments, she takes nothing, she needs nothing 💅

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💖 DESCRIPTION 💖

so basically? this converts console_lock into a spinlock. periodt 🔥

this marks the section where the console_lock owner can not sleep, because there may be a waiter spinning (like a spinlock) 😭 also — and this is the important part — it must be ready to hand over the lock at the end of the section 👑

it's giving "hold my spot, i'm almost done" energy fr fr 🧚

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🌈 SEE ALSO 🌈

• Kernel file ./kernel/printk/printk.c
• console_list_lock(9)
• console_list_unlock(9)
• console_srcu_read_lock(9)
• console_srcu_read_unlock(9)
• console_lock_spinning_disable_and_check(9)
• console_trylock_spinning(9)
• printk_parse_prefix(9)
• add_preferred_console(9)
• match_devname_and_update_preferred_console(9)
• console_suspend_all(9)
• console_cpu_notify(9)
• console_lock(9)
• console_trylock(9)
• console_unlock(9)
• console_flush_on_panic(9)
• printk_kthreads_shutdown(9)
• console_force_preferred_locked(9)
• pr_flush(9)
• wake_up_klogd(9)
• defer_console_output(9)
• printk_trigger_flush(9)
• printk_timed_ratelimit(9)
• kmsg_dump_register(9)
• kmsg_dump_unregister(9)
• kmsg_dump_desc(9)
• kmsg_dump_get_line(9)
• kmsg_dump_get_buffer(9)
• kmsg_dump_rewind(9)
• console_try_replay_all(9)
• __printk_cpu_sync_wait(9)
• __printk_cpu_sync_try_get(9)
• __printk_cpu_sync_put(9)

like, that's the whole friend group right there and they all ate 💜

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kisses bestie, that's the page 💋 this one lives at ./kernel/printk, dated October 2026, and it's filed under console_lock...nning_enable(9) — go read it again if you need, i'll wait 🍓✨