ioat_check_space_lock(9)

💖 NAME 💖

okay bestie, meet ioat_check_space_lock(9) from the Kernel API Manual — the page whose whole job is to verify space and grab ring producer lock. no cap, that’s literally the name and the vibe. 💅

✨ SYNOPSIS ✨

here’s the signature exactly as it appears, character-for-character, don’t touch it:

int ioat_check_space_lock (struct ioatdma_chan *ioat_chan , int
       num_descs );

🎀 ARGUMENTS 🎀

• ioat_chan — the ioat,3 channel (ring) to operate on. yes, ioat,3, exactly like that, bestie 🫶
• num_descs — the allocation length, periodt ✨

🦋 SEE ALSO 🦋

• the kernel file ./drivers/dma/ioat/dma.c — yep, that path exactly 👑
• ioat_dma_do_interrupt(9)
• ioat_dma_do_interrupt_msix(9)
• ioat_update_pending(9)
• __ioat_cleanup(9)

these are your lil besties for this one, iykyk 🌈

mwah 💋 source/version: ./drivers/dma/ioat · date: October 2026 · manual name: ioat_check_space_lock(9) — from the Kernel API Manual, bestie!