bm_evict_inode(9)

💅 bm_evict_inode(9) — the Kernel API Manual, bestie edition 🎀

okay so real talk, this page is from the Kernel API Manual and it's about bm_evict_inode(9) — a whole function for tidying up when an inode bounces ✨

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🦋 NAME 🦋

bm_evict_inode — cleanup data associated with @inode

like, the inode is leaving the function and someone's gotta clean its room fr fr 🌸

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✨ SYNOPSIS ✨

void bm_evict_inode (struct inode *inode );

it returns void, so no exit-status drama, she just does the thing and dips 💅

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🎀 ARGUMENTS 🎀

• inode — inode to which the data is attached. that's it, that's the whole parameter list, and honestly? iconic.

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👑 DESCRIPTION 👑

So the vibe here is: cleanup the binary type handler data associated with inode if a binary type entry is removed or the filesystem is unmounted and the super block is shutdown. basically two different exits from this party, and our girl handles both 🫶

Now here's the little plot twist — if the ->evict call was not caused by a super block shutdown but by removing the entry via bm_{entry,status}_write or unlink(2), the entry will have already been removed from the list. so it's already gone, bestie, she's not there.

And this is why we keep the hlist_unhashed check — to make that explicit. no cap, it's on purpose, it's documenting itself in the code 😭 reading comprehension but make it kernel source 💖

lowkey a moment of self-awareness in the kernel, we love to see it ✨

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🔥 SEE ALSO 🔥

Kernel file ./fs/binfmt_misc.c, plus the whole group chat:

• struct binfmt_misc_flag(9)
• search_binfmt_handler(9)
• get_binfmt_handler(9)
• binfmt_misc_find_interp(9)
• entry_attach_interpreter(9)
• put_binfmt_handler(9)
• current_binfmt_misc(9)
• entry_select_interpreter(9)
• entry_invocation_flags(9)
• entry_open_interpreter(9)
• build_interp_argv(9)
• i_binfmt_misc(9)
• unlink_binfmt_handler(9)
• remove_binfmt_handler(9)
• bm_unlink(9)
• bm_entry_add_interp(9)

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that's the whole page, no crumbs left 🍓

and for the cute sign-off: this one lives under ./fs, and it's dated October 2026 — mark your calendar besties, she's from the future 🌈⭐💜