vringh_iov_push_user(9)

💅 vringh_iov_push_user 💅

okay so bestie, welcome to the Kernel API Manual ✨ this one's a little function from the vhost/vringh corner of the kernel and honestly? she's a whole vibe. let's get into it 🫶

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✨ NAME ✨

vringh_iov_push_user — literally copies bytes into a vring_iov. that's the whole job. main character energy, minimal dramatics 🎀

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🌸 SYNOPSIS 🌸

ssize_t vringh_iov_push_user (struct vringh_iov *wiov , const void *src
, size_t len );

ngl the signature is giving "three args and a dream" 💀

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🦋 ARGUMENTS 🦋

• wiov — the wiov as passed to vringh_getdesc_user (updated as we consume). yes bestie, it gets mutated in place as the function eats through it, so don't act surprised 👀
• src — the place to copy from. your source. your origin story 💖
• len — the maximum length to copy. emphasis on maximum, she will not overshoot 🔥

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⭐ DESCRIPTION ⭐

Returns the bytes copied <= len or a negative errno. that's it, that's the paragraph 😭 so like — you get back a count that is less than or equal to len, OR you get a negative errno if things went sideways. slay either way 💅

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🌈 SEE ALSO 🌈

the whole fam, no cap — this list is long and every single one of them stays:

• Kernel file ./drivers/vhost/vringh.c 👑
• vringh_kiov_advance(9)
• vringh_init_user(9)
• vringh_getdesc_user(9)
• vringh_iov_pull_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_complete_iotlb(9)
• vringh_need_notify_iotlb(9)

like I said. the whole fam. iykyk 🧚

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aaaand that's the page!! 🍓 this lil icon lives in ./drivers/vhost and the docs are dated October 2026 — so like, future-coded of them tbh 💜 go push some bytes bestie, you got this ✨💅