nilfs_bmap_seek_key(9)

nilfs_bmap_seek_key(9) 💅

okay so we’re in the Kernel API Manual, and this page is giving “tiny but important little seeker function” energy ✨. It’s all about nilfs_bmap_seek_key — seek a valid entry and return its key. No cap.

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🌸 NAME 🌸

nilfs_bmap_seek_key — seek a valid entry and return its key 👑

✨ SYNOPSIS ✨

int nilfs_bmap_seek_key (struct nilfs_bmap *bmap , __u64 start , __u64 *keyp );

🎀 ARGUMENTS 🎀

• bmap — bmap struct 🫶 literally the bmap struct in question.
• start — start key number 🔢 the place where the search begins.
• keyp — place to store valid key 🎁 if a valid key is found, it gets tucked in here.

🦋 DESCRIPTION 🦋

okay so nilfs_bmap_seek_key seeks a valid key on bmap starting from start, and stores it to keyp if found. That’s the whole main character plot 💫. It’s not doing extra side quests — it’s seeking and storing, periodt.

🔥 RETURN 🔥

0 on success, or one of the following negative error codes on failure 😭:

• -EIO — I/O error (including metadata corruption). 💀 the scary one, fr fr.
• -ENOENT — No valid entry was found. 🙈
• -ENOMEM — Insufficient memory available. 😵‍💫

💜 SEE ALSO 💜

Kernel file ./fs/nilfs2/bmap.c — plus the whole function friend group, in order:

• nilfs_bmap_lookup_at_level(9)
• nilfs_bmap_insert(9)
• nilfs_bmap_delete(9)
• nilfs_bmap_truncate(9)
• nilfs_bmap_clear(9)
• nilfs_bmap_propagate(9)
• nilfs_bmap_lookup_dirty_buffers(9)
• nilfs_bmap_assign(9)
• nilfs_bmap_mark(9)
• nilfs_bmap_test_and_clear_dirty(9)
• nilfs_bmap_read(9)
• nilfs_bmap_write(9)

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xoxo bestie 💖 — signing off from ./fs/nilfs2, October 2026. Catch u in nilfs_bmap_seek_key(9) land! 🫶