fscache_clear_page_bits(9)

📦 version 7.3.1, in nixpkgs unstable

💖 fscache_clear_page_bits(9) 💖

okay bestie, this page is straight out of the Kernel API Manual and it's literally all about clearing some page bits. no cap, it's short and sweet, so let's get into it 💅✨

🎀 NAME 🎀

fscache_clear_page_bits — clears the PG_fscache bits from a set of pages. that's the whole vibe fr fr 💫

✨ SYNOPSIS ✨

void fscache_clear_page_bits (struct address_space *mapping , loff_t
start , size_t len , bool caching );

🌸 DESCRIPTION 🌸

okay so picture this: there's a sequence of pages, and they've got this PG_fscache flag set on them. this function's whole job is to clear that flag from the entire sequence and then wake up anyone who's waiting. it's giving "cleanup era" and honestly? iconic. 🧹✨

🦋 ARGUMENTS 🦋

  • mapping — a struct address_space * — the netfs inode you're using as the source. it's the main character here 💁‍♀️
  • start — loff_t — the start position in mapping. where the slay begins 💅
  • len — size_t — the amount of data to unlock. get into it ✨
  • caching — bool — if PG_fscache has been set. lowkey just tells it if the flag is already there 🎀
bestie note: this page is literally two sections of substance, no cap. short and slay 💖

👑 SEE ALSO 👑

like, literally go read the kernel file ./include/linux/fscache.h bestie, it's right there. and also these iconic functions:

and that's the whole page bestie!! 🫶 this gem is from October 2026, lives in ./include/linux, and it's fscache_clear_page_bits(9) — go off and clear those bits ✨💖🌸

📦 where this page comes from