generic_encode_ino32_fh(9)

💅 generic_encode_ino32_fh(9) 💅

okay so bestie, welcome to the Kernel API Manual — this one lives in ./fs/libfs.c and it's literally the glow-up your filesystem needs when it wants a generic export_operations->encode_fh function 🎀

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✨ NAME ✨

generic_encode_ino32_fh — the generic export_operations->encode_fh function, no cap 💖

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🌸 SYNOPSIS 🌸

int generic_encode_ino32_fh (struct inode *inode , __u32 *fh , int
       *max_len , struct inode *parent );

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🦋 ARGUMENTS 🦋

• inode — the object to encode. she's the main character fr 💅
• fh — where to store the file handle fragment ✨
• max_len — maximum length to store there (in 4 byte units). yes bestie, units — keep up 😭
• parent — parent directory inode, if wanted 🫶

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🔥 DESCRIPTION 🔥

So this generic encode_fh function is out here assuming that the 32 inode number is suitable for locating an inode, and that the generation number can be used to check that it is still valid. the way that it just trusts the 32 inode number?? iconic 🌈

It places them in the filehandle fragment where export_decode_fh expects to find them 🎯 like it's matching outfits — everything goes exactly where the other function is gonna look, periodt 👑

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💜 SEE ALSO 💜

Kernel file ./fs/libfs.c and honestly the whole friend group:

• simple_offset_init(9)
• simple_offset_add(9)
• simple_offset_remove(9)
• simple_offset_rename(9)
• simple_offset_rename_exchange(9)
• simple_offset_destroy(9)
• offset_dir_llseek(9)
• offset_readdir(9)
• simple_rename_timestamp(9)
• simple_setattr(9)
• simple_write_end(9)
• simple_read_from_buffer(9)
• simple_write_to_buffer(9)
• memory_read_from_buffer(9)
• generic_fh_to_dentry(9)
• generic_fh_to_parent(9)
• simple_fsync_noflush(9)
• simple_fsync(9)
• generic_check_addressable(9)
• simple_get_link(9)
• generic_ci_d_compare(9)
• generic_ci_d_hash(9)
• generic_ci_match(9)
• generic_set_sb_d_ops(9)
• inode_maybe_inc_iversion(9)
• inode_query_iversion(9)
• simple_inode_init_ts(9)
• path_from_stashed(9)
• simple_start_creating(9)

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💀 reminder bestie: this whole thing lives in ./fs, and it's stamped October 2026 — that's the vibe check, fr fr. go slay some file handles ✨👑🦋