inode_fsuid_set(9)

💅 inode_fsuid_set(9) — like, the Kernel API Manual page you didn't know you needed 🎀

okay so bestie, welcome to the Kernel API Manual entry for inode_fsuid_set(9) — she's a tiny function with main character energy and she's literally about to make your inode's i_uid field make sense. no cap. ✨

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🌸 NAME 🌸

inode_fsuid_set — initializes the inode's i_uid field with the caller's fsuid 💖

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⭐ SYNOPSIS ⭐

void inode_fsuid_set (struct inode *inode , struct mnt_idmap *idmap );

she takes two args and returns void, periodt. 🫶

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🦋 ARGUMENTS 🦋

• inode — the inode you're initializing, bestie. that's the whole vibe check. 🌈
• idmap — the idmap of the mount that the inode was found from. iykyk. 💅

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👑 DESCRIPTION 👑

so here's the tea 🍓: inode_fsuid_set initializes the i_uid field of inode. that's it, that's the job, and she does it flawlessly.

but wait, there's a plot twist 😭 — if the inode was found/created via an idmapped mount, she maps the caller's fsuid according to idmap. so the mapping is not optional, it's giving "context-sensitive icon" behavior and honestly? we love that for her. 🔥

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🧚 SEE ALSO 🧚

like, go read these next, fr fr — they're all in the same friend group 💜:

• Kernel file ./include/linux/fs.h
• enum positive_aop_returns(9)
• struct address_space(9)
• struct file_ra_state(9)
• struct file(9)
• i_uid_into_vfsuid(9)
• i_uid_needs_update(9)
• i_uid_update(9)
• i_gid_into_vfsgid(9)
• i_gid_needs_update(9)
• i_gid_update(9)
• inode_fsgid_set(9)
• fsuidgid_has_mapping(9)
• inode_set_ctime(9)
• file_write_started(9)
• file_write_not_started(9)
• struct renamedata(9)
• is_mgtime(9)
• iput_if_not_last(9)
• is_idmapped_mnt(9)
• file_start_write(9)
• file_end_write(9)
• kiocb_start_write(9)
• kiocb_end_write(9)
• name_is_dot_dotdot(9)
• name_contains_dotdot(9)
• inode_dio_begin(9)
• inode_dio_end(9)
• generic_ci_validate_strict_name(9)

bestie that's a LOT of cross-references and every single one of them is here on purpose — don't skip, they're all canon. 💀

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🎀 sign-off 🎀

this little masterpiece lives under ./include/linux, and she was dated October 2026 — so yeah, she's from the future and she still ate. 💅✨ bye bestie, go initialize some inodes responsibly 🫶💖