try_to_writeback_inodes_sb(9)

📦 version 7.3.1, in nixpkgs unstable

💫 try_to_writeback_inodes_sb 💫

okay so bestie, welcome to the Kernel API Manual — this one's a lil kernel function and honestly it's giving "gentle nudge" energy, not "do the whole thing" energy. you're gonna get it, i promise 🫶

✨ NAME ✨

try_to_writeback_inodes_sb — try to start writeback if none underway

like, try. it's right there in the name, she's not making promises 💅

🌸 SYNOPSIS 🌸

void try_to_writeback_inodes_sb (struct super_block *sb , enum wb_reason
reason );

no return value, no drama, just vibes and a void. periodt ✨

🎀 ARGUMENTS 🎀

  • sb — the superblock. yep, that superblock, the main character 👑
  • reason — the reason why some writeback work was initiated. it's an enum wb_reason, so like, the kernel wants receipts on why we're even doing this 📝

🦋 DESCRIPTION 🦋

so here's the whole bit: this function invokes __writeback_inodes_sb_nr if no writeback is currently underway.

that's it. that's the function. she checks the vibe first — if the writeback party is already going, she does not crash it (rude), she just doesn't start a second one. no cap. if it's quiet though? she calls __writeback_inodes_sb_nr and gets things moving 🌈

lowkey iconic behavior honestly — knowing when not to act is a whole skill 💀

🔥 SEE ALSO 🔥

Kernel file ./fs/fs-writeback.c plus this whole friend group right here — like, the entire writeback gc, no crumbs:

that's the whole page bestie, mwah 💖 this one lives in ./fs and the version date is October 2026 — so if you're reading this in a kernel tree, congrats, you're on time for once 🧚✨ go read fs-writeback.c, it's literally right there 🍓

📦 where this page comes from