__sg_free_table(9)

📦 version 7.3.1, in nixpkgs unstable

💖 __sg_free_table(9) — Kernel API Manual 💖

Okay so bestie, welcome to the kernel API manual ✨ — this one's from the Kernel API Manual and it's all about __sg_free_table, which (spoiler) frees a previously mapped sg table. Cleanup era. We love a function that knows when to let go 💅

🌸 NAME 🌸

__sg_free_table — Free a previously mapped sg table 🫶

✨ SYNOPSIS ✨

void __sg_free_table (struct sg_table *table , unsigned int max_ents ,
       unsigned int nents_first_chunk , sg_free_fn *free_fn , unsigned int
       num_ents );

🎀 ARGUMENTS 🎀

  • table — the sg table header you're working with 💖
  • max_ents — the maximum number of entries per single scatterlist ✨
  • nents_first_chunk — number of entries in the (preallocated) first scatterlist chunk. 0 means there's no such preallocated first chunk, iykyk 🙈
  • free_fn — the free function (yes, that's the whole description, she's lowkey self-explanatory 👑)
  • num_ents — number of entries in the table 🔥

🦋 DESCRIPTION 🦋

Free an sg table that was previously allocated and set up with __sg_alloc_table. It's giving "you made this mess, now clean it up" 🧹✨

⚠️ Okay this part actually matters: the max_ents value must be identical to the one you previously used with __sg_alloc_table. No mixing and matching, bestie — they have to match fr fr 💀

🌈 SEE ALSO 🌈

Kernel file ./lib/scatterlist.c and the whole scatterlist friend group 🫶:

✨ sign-off time ✨

That's the whole page, bestie — brought to you by ./lib 🍓, October 2026 edition, and it's __sg_free_table(9) all the way down 💜 Go free that table, you absolute icon 👑💅

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