nilfs_pallo...bitmap_block(9)

📦 version 7.3.1, in nixpkgs unstable

💅 nilfs_palloc_get_bitmap_block — Kernel API Manual

okay so bestie, we're in the nilfs_pallo...bitmap_block(9) page, which lives in the Kernel API Manual ✨ and it's literally one function, but she's an important one. Let's get into it 🫶

🌸 NAME 🌸

nilfs_palloc_get_bitmap_block — get buffer head of a bitmap block

like, that's the whole vibe. she fetches the buffer head for a bitmap block. iconic behavior only 💅

✨ SYNOPSIS ✨

int nilfs_palloc_get_bitmap_block (struct inode *inode , unsigned long
group , int create , struct buffer_head **bhp );

yes the signature is chunky, no we're not scared of her 💀

🎀 ARGUMENTS 🎀

okay so here's who's showing up to the function:

  • inode — inode of metadata file using this allocator. she's the main character, the file that's running the whole allocator situation 👑
  • group — group number. which group are we talking about bestie, be specific 🦋
  • create — create flag. the "are we making a new one or not" flag 🌸
  • bhp — pointer to store the resultant buffer head. she's an out-param, she holds the buffer head when all is said and done 🎀

🔥 RETURN 🔥

0 on success, or a negative error code on failure. slay when it's 0, sad girl hours when it's negative 😭

🦋 SEE ALSO 🦋

she does NOT roll alone — she's part of a whole friend group over in the Kernel file ./fs/nilfs2/alloc.c 💖

literally the entire allocator friend group, go say hi 🫶

anyway that's the page bestie!! this one's sourced from ./fs/nilfs2 and dated October 2026, and the whole thing is filed under the Kernel API Manual — mwah, go read the rest of the nilfs_palloc_*(9) girlies, they ate 💅✨🍓

📦 where this page comes from