drbd_rs_begin_io(9)

📦 version 7.3.1, in nixpkgs unstable

🌸 drbd_rs_begin_io(9) 🌸

okay so bestie, welcome to the Kernel API Manual — this one's a little kernel function called drbd_rs_begin_io, and it's literally the moment a resync extent gets pulled into the resync LRU cache and marked as BME_LOCKED. locked in, literally. 💅

✨ NAME ✨

drbd_rs_begin_io — gets an extent in the resync LRU cache and sets it to BME_LOCKED. that's the whole vibe. it grabs the extent, it locks it, it's done. 🎀

✨ SYNOPSIS ✨

int drbd_rs_begin_io(struct drbd_device *device, sector_t sector);

✨ ARGUMENTS ✨

  • device — the DRBD device. your main character. 🫶
  • sector — the sector number. the address of the drama, iykyk. 📍

✨ DESCRIPTION ✨

so what actually happens? this function sleeps on al_wait. that's it, that's the tea. it goes night-night waiting on al_wait, no cap. 😴💤

✨ RETURN ✨

  • 0 — success, we ate. 🍓✨
  • -EINTR — interrupted. rude, honestly. 😭

✨ SEE ALSO ✨

peep the kernel file ./drivers/block/drbd/drbd_actlog.c for the lore, plus these iconic siblings:

go read them, they're giving family reunion. 👑

ok that's the whole page bestie, no gatekeeping here — ./drivers/block/drbd, dated October 2026, the drbd_rs_begin_io(9) era. mwah 💋🦋 stay hydrated and don't forget to check your return values 🧚💜
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