dax_holder(9)

💅 dax_holder(9) — a Kernel API Manual moment

Okay so bestie, welcome to dax_holder(9), straight out of the Kernel API Manual ✨ this one's a tiny little function but she's got main character energy in the dax world 🎀

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🌸 NAME

dax_holder — obtain the holder of a dax device 🫶

Like, who's holding this dax device? This function knows. 👑

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✨ SYNOPSIS

void * dax_holder (struct dax_device *dax_dev );

Nothing else, no extra drama, that's the whole vibe 💅

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🦋 ARGUMENTS

• dax_dev — a dax_device instance. That's it. That's the whole argument list. She's low maintenance. 😌

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⭐ RETURN

Returns the holder's data — the thing that represents the holder — if one is registered. Otherwise it's NULL. (The original page literally spelled it "otherwize" and honestly? iconic of her. 😭 Keeping the facts, keeping the energy.)

So:

• registered holder → you get their data back 🎉
• no holder → NULL, no cap, nothing, empty, a void 🌫️

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🔥 SEE ALSO

Go read these next, bestie, they're all in the same friend group 🫶 — Kernel file ./drivers/dax/super.c, struct dax_device(9), fs_dax_get_by_bdev(9), fs_put_dax(9), fs_dax_get(9), dax_direct_access(9), dax_set_ops(9), inode_dax(9)

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fr fr, that's the entire page — tiny function, big "who's your holder" energy 💖 don't overthink her.

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Later, bestie — this one comes to you from ./drivers/dax, dated October 2026 🎀✨ slay responsibly 💅