dma_resv_loc...nterruptible(9)

📦 version 7.3.1, in nixpkgs unstable

🌸 dma_resv_lock_slow_interruptible — Kernel API Manual, but make it make sense 💅

okay so bestie, this is the dma_resv_lock_slow_interruptible(9) page straight out of the Kernel API Manual, and I'm gonna walk you through it like we're texting at 2am. it's short, it's sweet, it's giving "the fallback plan of lock functions." let's go ✨

🎀 NAME 🎀

dma_resv_lock_slow_interruptible — slowpath lock the reservation object, interruptible.

like, the slow lane. the scenic route. and yeah, it's interruptible, which matters, ok? 🫶

⭐ SYNOPSIS ⭐

int dma_resv_lock_slow_interruptible (struct dma_resv *obj , struct ww_acquire_ctx *ctx );

returns an int, takes two args, that's the whole vibe check 🔥

🦋 ARGUMENTS 🦋

  • obj — the reservation object. yeah. that one. the thing you're locking. 👑
  • ctx — the locking context. this is the receipts of who is doing the locking, no cap.

💖 DESCRIPTION 💖

so here's the tea: this function acquires the reservation object, and it does it interruptible, after a die case — like, the slow path you fall back to when the fast path went 💀. it's the "ok that didn't work, we do it the patient way" moment.

and bestie, she will sleep until the lock becomes available. literally. sleeps on it. nap era. 😴 so don't call her from a context where sleeping is a crime, iykyk.

also! go look at dma_resv_lock_interruptible too, the doc literally says to — they're siblings, that's the dynamic. 🌈

🔍 SEE ALSO 🔍

all the friends in the group chat, and yes I'm listing every single one because none of them get left on read 💜

Kernel file ./include/linux/dma-resv.h — plus:

ok that's the whole page, it was short but she ate 💅 don't forget the sleeping thing, that's the one (1) caveat and it's lowkey important.

mwah, that's a wrap 🎀 this cutie lives in ./include/linux, dated October 2026, and it's filed under the Kernel API Manual — go forth and lock responsibly, bestie 🫶✨

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