security_bdev_alloc(9)

📦 version 7.3.1, in nixpkgs unstable

💖 security_bdev_alloc(9) — straight from the Kernel API Manual 💖

okay so bestie, this page is about one tiny but iconic kernel function: security_bdev_alloc. It comes from the Kernel API Manual, and it's giving "allocate the LSM blob for a block device" energy. no cap. ✨

🎀 NAME 🎀

security_bdev_alloc — allocate a block device LSM blob 💅

🌸 SYNOPSIS 🌸

int security_bdev_alloc (struct block_device *bdev );

🦋 ARGUMENTS 🦋

  • bdev — the block device, bestie. that's the whole argument. 🫶

✨ DESCRIPTION ✨

So what it does is allocate a security structure and attach it to bdev->bd_security. That's the spot on the block device where the LSM security blob lives.

Also important: that security field starts out as NULL when the bdev structure gets allocated. So this function is the glow-up moment where it gets filled in. 🌈

💅 RETURN 💅

Return 0 if the operation was successful. That's the win condition, bestie. 🎀

👑 SEE ALSO 👑

The source for this whole extended universe is Kernel file ./security/security.c, and the original SEE ALSO list is literally a whole group chat. here's every single reference, exactly as written — no skips, no edits, no "lol I'll summarise" behavior. 💖

and that's the page, bestie 💖 sign-off time: source/version is ./security, date is October 2026 — mwah 💋

📦 where this page comes from