vringh_complete_iotlb(9)

💅 vringh_complete_iotlb(9) — the kernel API manual, but make it cute

okay so bestie, you know how sometimes you gotta be the one to actually announce that you're done with something? yeah. that's this function. it lives in the Kernel API Manual, section 9, and it's lowkey the "i'm finished, tell the world" moment of the vringh saga. 🎀

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✨ NAME ✨

vringh_complete_iotlb — we've finished with descriptor, publish it. literally that. no cap. 💖

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✨ SYNOPSIS ✨

int vringh_complete_iotlb (struct vringh *vrh , u16 head , u32 len );

three args, one int coming back at you. slay. 🌸

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✨ ARGUMENTS ✨

• vrh — the vring. yes, the vring. your main character. 👑
• head — the head as filled in by vringh_getdesc_iotlb. like, hand it back the exact same head you got given, don't get creative with it. 🫶
• len — the length of data we have written. the receipts, basically. how much you actually put down. ✨

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✨ DESCRIPTION ✨

so here's the vibe check 🦋 — after you call this function one time, or honestly multiple times (one or more calls, fr fr), you should check vringh_need_notify_iotlb. that's it. that's the whole description. it's giving "short but important". 💅

not me stressing how you gotta remember to do the vringh_need_notify_iotlb check after. don't skip it bestie, i'm begging 😭

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✨ SEE ALSO ✨

the whole friend group 🫶 — kernel file ./drivers/vhost/vringh.c and literally all of these:

• vringh_kiov_advance(9)
• vringh_init_user(9)
• vringh_getdesc_user(9)
• vringh_iov_pull_user(9)
• vringh_iov_push_user(9)
• vringh_complete_user(9)
• vringh_complete_multi_user(9)
• vringh_notify_enable_user(9)
• vringh_notify_disable_user(9)
• vringh_need_notify_user(9)
• vringh_init_kern(9)
• vringh_getdesc_kern(9)
• vringh_complete_kern(9)
• vringh_notify_enable_kern(9)
• vringh_notify_disable_kern(9)
• vringh_need_notify_kern(9)
• vringh_init_iotlb(9)
• vringh_init_iotlb_va(9)
• vringh_set_iotlb(9)
• vringh_getdesc_iotlb(9)
• vringh_iov_pull_iotlb(9)
• vringh_iov_push_iotlb(9)
• vringh_need_notify_iotlb(9)

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and that's the whole page, periodt. 💀 source: ./drivers/vhost, dated October 2026, page vringh_complete_iotlb(9). go publish that descriptor bestie, iykyk 🌈💜