blkg_free(9)

💖 blkg_free(9) 💖

okay so bestie, welcome to blkg_free — section 9 of the Kernel API Manual, aka the little corner of the kernel where we let the blkg go 🦋

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✨ NAME ✨

blkg_free — free a blkg. that's it. that's the whole vibe. one job, no notes 🔥

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🌸 SYNOPSIS 🌸

void blkg_free (struct blkcg_gq *blkg );

no return value, no drama, it's a void — it gives you nothing back and honestly? iconic. 💅

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🎀 ARGUMENTS 🎀

• blkg — the blkg to free. like, this specific one, bestie. hand it over and it's gone 🫶

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💜 DESCRIPTION 💜

Free blkg — and here's the lowkey important part: that blkg may be partially allocated 😭

so like… it doesn't have to be all finished and perfect and fully built out. half-constructed? still valid. still gets freed. it's giving "cleanup crew has no standards, they just have a job to do" 🧹✨ which fr fr is the point — you can call this on a blkg that never made it all the way, no cap.

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🦋 SEE ALSO 🦋

okay this list is long and I'm obsessed 💀 it's all chilling in the kernel file ./block/blk-cgroup.c, and here's every single one, in order, no skips:

• blkcg_css(9)
• bio_blkcg_css(9)
• blkcg_parent(9)
• blkg_alloc(9)
• blkg_lookup_create(9)
• blkcg_print_blkgs(9)
• __blkg_prfill_u64(9)
• blkg_conf_init(9)
• blkg_conf_open_bdev(9)
• blkg_conf_prep(9)
• blkg_conf_unprep(9)
• blkg_conf_close_bdev(9)
• blkcg_destroy_blkgs(9)
• blkcg_pin_online(9)
• blkcg_unpin_online(9)
• blkcg_css_offline(9)
• blkcg_activate_policy(9)
• blkcg_deactivate_policy(9)
• blkcg_policy_register(9)
• blkcg_policy_unregister(9)
• blkcg_maybe_throttle_current(9)
• blkcg_schedule_throttle(9)
• blkcg_add_delay(9)
• blkg_tryget_closest(9)
• bio_associate_blkg_from_css(9)
• bio_associate_blkg(9)
• bio_clone_blkg_association(9)

like that's a whole friend group and blkg_free is the one who shows up at the end to close out the party 🎉👑

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reminder bestie: everything above lives in ./block/blk-cgroup.c 💖 go read the source, it's good for you, iykyk 🍓

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mwah, that's the page!! 💅✨ this little beauty comes to you straight outta ./block and it's dated October 2026 — see you then, bestie 🌈🎀👑