get_slab_number(9)

📦 version 7.3.1, in nixpkgs unstable

💅 get_slab_number(9) — Kernel API Manual, bestie edition

okay so this is a page straight out of the Kernel API Manual, and it's about get_slab_number — no cap, the name literally tells you everything: it gets the number of the slab that contains a specified block. like, you hand it a block, it tells you which slab that block is living in. that's the whole vibe 🎀

✨ NAME ✨

get_slab_number — get the number of the slab that contains a specified block. periodt.

🌸 SYNOPSIS 🌸

int get_slab_number (const struct slab_depot *depot ,
physical_block_number_t pbn , slab_count_t *slab_number_ptr );

🦋 ARGUMENTS 🦋

  • depot — the slab depot. yes, the whole depot. she's the main character here 👑
  • pbn — the physical block number. the block you're asking about, fr fr.
  • slab_number_ptr — a pointer to hold the slab number. like, this is where the answer goes to live afterwards 💖

💜 RETURN 💜

VDO_SUCCESS or an error. that's it, that's the whole return situation 🙈

🔥 SEE ALSO 🔥

okay this list is long — like, genuinely iconic levels of long — but every single one of these is a real reference on this page, so we're listing them all. grab a snack 🍓

the kernel file is ./drivers/md/dm-vdo/slab-depot.c, and then:

like I said. iconic. and that's the entire list, nothing skipped, I would never do you like that 🫶

🧚 sign-off 🧚

this little love letter lives in ./drivers/md/dm-vdo, it's the October 2026 edition, and the page itself is get_slab_number(9). go find your slab, bestie 💅✨

📦 where this page comes from