add_to_queue(9)

💅 add_to_queue(9) — the Kernel API Manual, bestie edition 🎀

okay so you found add_to_queue(9) in the kernel API manual and you're like "what is this tiny little function doing in my life" — don't worry, I got you. It's short, it's sweet, it's a whole vibe.

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✨ NAME ✨

add_to_queue — add a holder to the wait queue (but like… 👀 look for recursion, bestie)

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🦋 SYNOPSIS 🦋

void add_to_queue (struct gfs2_holder *gh );

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🌸 ARGUMENTS 🌸

• gh — the holder structure to add. that's it. that's the whole argument. she's the star of the show 👑

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💖 DESCRIPTION 💖

okay so here's the tea 🍵 — eventually, we should move the recursive locking trap over to a debugging option or something like that. like, it's on the to-do list, it's giving "we'll get to it."

but for right now? this is the fast path 🔥 and it needs to have the minimum number of distractions. no extra checks, no side quests, no main-character detours — just get in, add the holder, and go. periodt. 💅

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🔮 SEE ALSO 🔮

Kernel file ./fs/gfs2/glock.c and the whole friend group 🫶:

• wake_up_glock(9)
• gfs2_glock_hold(9)
• gfs2_glock_put(9)
• may_grant(9)
• do_error(9)
• find_first_holder(9)
• do_promote(9)
• find_first_waiter(9)
• find_last_waiter(9)
• state_change(9)
• finish_xmote(9)
• do_xmote(9)
• run_queue(9)
• glock_set_object(9)
• glock_clear_object(9)
• gfs2_glock_get(9)
• __gfs2_holder_init(9)
• gfs2_holder_reinit(9)
• gfs2_holder_uninit(9)
• gfs2_glock_holder_ready(9)
• gfs2_glock_wait(9)
• gfs2_glock_async_wait(9)
• request_demote(9)
• gfs2_glock_nq(9)
• gfs2_glock_poll(9)
• gfs2_glock_dq(9)
• gfs2_glock_dq_uninit(9)
• gfs2_glock_nq_num(9)
• glock_compare(9)
• nq_m_sync(9)
• gfs2_glock_nq_m(9)
• gfs2_glock_dq_m(9)
• gfs2_should_freeze(9)
• gfs2_glock_complete(9)
• glock_hash_walk(9)
• thaw_glock(9)
• gfs2_glock_thaw(9)
• gfs2_wait_glocks(9)
• dump_holder(9)
• gfs2_dump_glock(9)

like, that's the whole group chat, go say hi 💜

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and that's the page!! 🎀 this one's from ./fs/gfs2 and it's dated October 2026 — so yeah, she's fresh, she's iconic, she's add_to_queue(9), and now you know her. mwah 💅✨