STRUCT VRINGH_IOV(9)

✨ NAME ✨

struct vringh_iov — bestie, it's literally an iovec mangler 💅

This is the struct vringh_iov(9) page from the Kernel API Manual, and yes we're gonna get into it 🫶

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🌸 SYNOPSIS 🌸

struct vringh_iov {
    struct iovec *iov;
    size_t consumed;
    unsigned i, used, max_num;
 };

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🎀 MEMBERS 🎀

Bestie the roster, let's go — every single one of these is doing its little job ✨

• iov — the array of iovecs we're operating on. this is the whole main character of the struct, no cap 👑
• consumed — how many bytes have been consumed within iov[i]. like we've already eaten that much of this particular snack 🍓
• i — the index of the current iovec. which one are we on rn 🧚
• used — the number of iovecs actually present in iov. how many are real vs just allocated space 🌸
• max_num — the maximum number of iovecs. corresponds to the allocated memory of iov, iykyk 💜

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💅 DESCRIPTION 💅

Okay so here's the vibe: this thing mangles iovec in place, and restores it 🔥 no cap, it does the whole glow-up and then puts everything back where it found it.

And the remaining data? That's iov + i, of used - i elements. literally just that ✨ — you do the pointer math yourself, bestie, the struct just tells you where you're at.

ngl this is the kind of struct that looks tiny and then you realize it's holding the entire cursor state of a ring walk together 💀

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🦋 SEE ALSO 🦋

Go read these next, fr fr — the whole little friend group 🫶

• Kernel file ./include/linux/vringh.h
• struct vringh_config_ops(9)
• struct vringh_kiov(9)

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okay that's the whole page, you ate that 💖 this came to you from ./include/linux, dated October 2026, signed sealed delivered by the Kernel API Manual — mwah, go forth and mangle responsibly 😭🎀