nilfs_bmap_mark(9)

💖 nilfs_bmap_mark(9) 💖

okay so this page is from the Kernel API Manual, and the main character is nilfs_bmap_mark(9). It’s giving kernel API realness, and we’re reading it together, bestie. 🫶

🎀 NAME 🎀

nilfs_bmap_mark - mark block dirty.

✨ SYNOPSIS ✨

int nilfs_bmap_mark (struct nilfs_bmap *bmap , __u64 key , int level );

🌸 ARGUMENTS 🌸

• bmap — bmap. Yes, literally just “bmap” — we are not inventing extra lore. 💅
• key — key.
• level — level.

🦋 DESCRIPTION 🦋

nilfs_bmap_mark marks the block specified by key and level as dirty. That’s the whole plot, bestie: key + level → dirty block, periodt. ✨

🔥 RETURN 🔥

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

• -EIO — I/O error (including metadata corruption).
• -ENOMEM — Insufficient memory available.

👑 SEE ALSO 👑

Kernel file ./fs/nilfs2/bmap.c, plus this whole friend group:

• nilfs_bmap_lookup_at_level(9)
• nilfs_bmap_insert(9)
• nilfs_bmap_seek_key(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_test_and_clear_dirty(9)
• nilfs_bmap_read(9)
• nilfs_bmap_write(9)

source/version: ./fs/nilfs2 • date: October 2026 • page: nilfs_bmap_mark(9) — byeee bestie, go mark those blocks dirty and slay 💅🎀✨