dma_fence_release(9)

💅 dma_fence_release(9) 💅

okay so we're in the Kernel API Manual bestie, and today's main character is dma_fence_release(9). bucket get, let's go ✨

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🌸 NAME 🌸

dma_fence_release — the default release function for fences. that's it, that's the whole vibe check 🎀

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✨ SYNOPSIS ✨

void dma_fence_release (struct kref *kref );

literally one line, one argument, zero drama 🦋 (ok maybe a little drama, see ARGUMENTS)

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🧚 ARGUMENTS 🧚

• kref — this is dma_fence.recfount. and yes, recfount is spelled exactly like that in the source, we do not make the rules, we just report them 💀

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👑 DESCRIPTION 👑

so this right here is the default release function for dma_fence. it's giving "cleanup crew but make it chic" 🧹✨

but — and this is the important part, bestie, do not skip this — drivers shouldn't call this directly. no cap. instead, they call dma_fence_put. that's the move. that's the whole assignment 🫶

fr fr: direct call = not it. dma_fence_put = the way. periodt 💅

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🔥 SEE ALSO 🔥

okay this list is long and honestly iconic, drink some water first 🍓

• Kernel file ./drivers/dma-buf/dma-fence.c
• DMA fences overview(9)
• fence cross-driver contract(9)
• dma_fence_get_stub(9)
• dma_fence_allocate_private_stub(9)
• dma_fence_context_alloc(9)
• fence signalling annotation(9)
• dma_fence_begin_signalling(9)
• dma_fence_end_signalling(9)
• dma_fence_signal_timestamp_locked(9)
• dma_fence_signal_timestamp(9)
• dma_fence_signal_locked(9)
• dma_fence_check_and_signal_locked(9)
• dma_fence_check_and_signal(9)
• dma_fence_signal(9)
• dma_fence_wait_timeout(9)
• dma_fence_free(9)
• dma_fence_enable_signaling(9)
• dma_fence_add_callback(9)
• dma_fence_get_status(9)
• dma_fence_remove_callback(9)
• dma_fence_default_wait(9)
• dma_fence_wait_any_timeout(9)
• deadline hints(9)
• dma_fence_set_deadline(9)
• dma_fence_describe(9)
• dma_fence_init(9)
• dma_fence_init64(9)
• dma_fence_driver_name(9)
• dma_fence_timeline_name(9)

like… that's a whole friend group right there. go say hi 🌈💜

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mwah 💋 this page lives in ./drivers/dma-buf, it's dated October 2026, and it answers to the name dma_fence_release(9). stay hydrated, read your cross-driver contract, and slay 🔥👑