alua_rtpg_queue(9)

💅 alua_rtpg_queue(9) — the kernel API manual, bestie edition

okay so welcome to alua_rtpg_queue(9), a page from the Kernel API Manual 🎀 yes we're in the kernel API manual today, it's giving very "my code runs in ring 0 and yours doesn't" energy, and honestly? iconic.

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✨ NAME ✨

alua_rtpg_queue — causes RTPG to be submitted asynchronously, bestie. not now. later. whenever the kernel feels cute. 💫

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🦋 SYNOPSIS 🦋

bool alua_rtpg_queue (struct alua_port_group *pg , struct scsi_device
*sdev , struct alua_queue_data *qdata , bool force );

four args, one bool coming back at you. that's the whole vibe check. 🫶

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🎀 ARGUMENTS 🎀

• pg — the ALUA port group that's associated with sdev. it's like, sdev's plus-one at the port group party. 💖
• sdev — the SCSI device you want to submit an RTPG for. yes, that one. 👀
• qdata — info about the callback that gets invoked after the RTPG. like a little note saying "hey, when you're done, do this." 🗒️✨
• force — whether or not to submit an RTPG if a work item that will submit an RTPG has already been scheduled. no cap, that's literally what it decides. 🔥

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🌸 DESCRIPTION 🌸

so the way this works: it returns true if and only if alua_rtpg_work will be called asynchronously. and that function is the one responsible for calling qdata->fn. so like... this function doesn't do the callback. it just makes sure the callback is gonna happen. it's the group-chat organizer, not the person showing up. 💀

big deal energy: true if and only if. the "if and only if" is not a suggestion, it's fr fr a contract. 🧚

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⭐ CONTEXT ⭐

may be called from atomic context (alua_check) only if the caller holds an sdev reference. that "only if" is doing a lot of heavy lifting here — no reference, no entry. 🙈

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/scsi/device_handler/scsi_dh_alua.c — go read it, iykyk 👑

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and that's the page!! 🍓 if you made it this far you're a real one. this little slice of the kernel API manual came to you from ./drivers/scsi/device_handler, dated October 2026 — slay, see you in the source tree bestie 💜💅🎀