copy_regset_from_user(9)

🌸 NAME — copy_regset_from_user 🌸

okay so bestie, welcome to the Kernel API Manual ✨ — the main character here is copy_regset_from_user, and what it does is store into a thread's user_regset data from user memory. that's the whole vibe. 💖

🎀 SYNOPSIS 🎀

int copy_regset_from_user (struct task_struct *target , const struct user_regset_view *view , unsigned int setno , unsigned int offset , unsigned int size , const void __user *data );

💅 ARGUMENTS 💅

okay now the cast of characters, and no skips fr fr:

• target — the thread to be examined 👀
• view — a struct user_regset_view describing the user thread machine state 🧚
• setno — index in view->regsets ✨
• offset — offset into the regset data, in bytes 🎀
• size — amount of data to copy, in bytes 🫶
• data — user-mode pointer to copy from 🌸

🔥 SEE ALSO 🔥

if you're going on a lil reading journey, the Kernel file is ./include/linux/regset.h, and the related pages are: user_regset_active_fn(9), user_regset_set_fn(9), user_regset_writeback_fn(9), struct user_regset(9), struct user_regset_view(9), and task_user_regset_view(9) 🌈. that's all of them, bestie, periodt.

okay that's the whole page, ily 💖 — source/version: ./include/linux; date: October 2026; page: copy_regset_from_user(9).