drbd_try_rs_begin_io(9)

📦 version 7.3.1, in nixpkgs unstable

hii bestie 💖 you're reading the Kernel API Manual entry for drbd_try_rs_begin_io(9), and it's a whole little vibe. it gets an extent in the resync LRU cache, and it does not sleep. no cap. 💅

✨ NAME ✨

drbd_try_rs_begin_io — Gets an extent in the resync LRU cache, does not sleep. periodt 🌸

🦋 SYNOPSIS 🦋

int drbd_try_rs_begin_io (struct drbd_peer_device *peer_device ,
       sector_t sector );

🎀 ARGUMENTS 🎀

  • peer_device — DRBD device. like, the DRBD device we're working with 🫶
  • sector — the sector number. yep, that exact sector 💫

💖 DESCRIPTION 💖

so here's the vibe: it gets an extent in the resync LRU cache, sets that extent to BME_NO_WRITES, and then tries to set it to BME_LOCKED. that's the little sequence, bestie. and yes, it does not sleep — no bedtime here 😴🚫

🔥 RETURN 🔥

  • 0 upon success — slay ✅
  • -EAGAIN if there is still application IO going on in this area — so if application IO is still happening there, you get -EAGAIN, periodt 💀

👑 SEE ALSO 👑

Kernel file ./drivers/block/drbd/drbd_actlog.c — go peek if you're nosy 👀

k bye bestie 💖 this page came from ./drivers/block/drbd, dated October 2026, and it's the manual entry for drbd_try_rs_begin_io(9). mwah 💋

📦 where this page comes from