nilfs_bmap_..._clear_dirty(9)

💅 nilfs_bmap_..._clear_dirty(9) — Kernel API Manual, bestie edition ✨

okay so real talk, this is page nilfs_bmap_..._clear_dirty(9) from the Kernel API Manual, and it's short but it ate. Let's get into it 🎀

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✨ NAME ✨

nilfs_bmap_test_and_clear_dirty — the one that tests and clears a bmap dirty state 🫶

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🌸 SYNOPSIS 🌸

int nilfs_bmap_test_and_clear_dirty (struct nilfs_bmap *bmap );

like, that's the whole signature, no cap. one argument, one int coming back at you 💖

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🦋 ARGUMENTS 🦋

• bmap — okay so this is the bmap. yeah. that's the description. it's giving minimalist, it's giving "the parameter is literally named after itself" 😭 we respect it tho

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💜 DESCRIPTION 💜

so nilfs_test_and_clear is the atomic operation that tests and clears the dirty state of bmap. both. at once. iconic behavior, honestly 👑

the way that it's atomic means the test-and-clear happens as one unit — no sneaky in-between state, no drama, periodt ✨

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⭐ RETURN ⭐

• 1 if bmap is dirty 💀
• 0 if it's clear ✨

that's it, that's the vibe check 🌈

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🧚 SEE ALSO 🧚

kernel file ./fs/nilfs2/bmap.c — go read the source, iykyk 💅

and the 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_mark(9)
• nilfs_bmap_read(9)
• nilfs_bmap_write(9)

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fr fr bestie, if you're poking at nilfs_bmap internals, read the friends above before you YOLO anything 🫶

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and that's the page!! this one lives under ./fs/nilfs2, dated October 2026, from the Kernel API Manual — mwah, go forth and clear those dirty states, you absolute main character 🌟💖🎀