dma_resv_copy_fences(9)

💅 dma_resv_copy_fences(9) 💅

okay so bestie, welcome to the dma_resv_copy_fences(9) page — it lives in the Kernel API Manual, and honestly? it's giving short-and-sweet main character energy. let's get into it 🎀

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✨ NAME ✨

dma_resv_copy_fences — copy all the fences from src to dst. like, all of them. every last one. no cap. 🦋

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🌸 SYNOPSIS 🌸

int dma_resv_copy_fences (struct dma_resv *dst , struct dma_resv *src );

she takes two struct dma_resv * and hands you back an int, periodt. 💅

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🧚 ARGUMENTS 🧚

• dst — the destination reservation object. the one receiving the fences, she's the hostess with the mostest 🫶
• src — the source reservation object. the one the fences are coming from, she's the donor bestie 💖

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👑 DESCRIPTION 👑

so here's the whole vibe: copy all the fences from src to dst. that's it, that's the function. 🌈

but listen — dst-lock must be held. that's not a suggestion, that's the rule. hold the lock, bestie, or things get ✨ undefined ✨ and we don't do that here. 🔥

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💜 SEE ALSO 💜

• the Kernel file ./drivers/dma-buf/dma-resv.c — the source of truth, iconic
• Reservation Object Overview(9)
• dma_resv_init(9)
• dma_resv_fini(9)
• dma_resv_reserve_fences(9)
• dma_resv_reset_max_fences(9)
• dma_resv_add_fence(9)
• dma_resv_replace_fences(9)
• dma_resv_iter_first_unlocked(9)
• dma_resv_iter_next_unlocked(9)
• dma_resv_iter_first(9)
• dma_resv_iter_next(9)
• dma_resv_get_fences(9)
• dma_resv_get_singleton(9)
• dma_resv_wait_timeout(9)
• dma_resv_set_deadline(9)
• dma_resv_test_signaled(9)
• dma_resv_describe(9)

like the whole dma-resv friend group, fr fr — go read them all, you'll be obsessed 😭💖

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and that's the page!! tysm for reading, mwah 🎀 this one came from ./drivers/dma-buf, dated October 2026, and it's part of the Kernel API Manual — go slay your fences, bestie ✨💅🦋