dma_resv_test_signaled(9)

💅 dma_resv_test_signaled(9) — like, the Kernel API Manual page you've been waiting for 🎀

okay bestie, so this one lives in the Kernel API Manual and it's called dma_resv_test_signaled(9). yes that's a mouthful, no we're not renaming it, it's iconic as is ✨

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🌸 NAME 🌸

dma_resv_test_signaled — test if a reservation object's fences have been signaled. that's the whole vibe check right there 💅

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✨ SYNOPSIS ✨

bool dma_resv_test_signaled (struct dma_resv *obj , enum dma_resv_usage usage );

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🦋 ARGUMENTS 🦋

• obj — the reservation object. the main character of this whole function ngl 🫶
• usage — controls which fences to include, see enum dma_resv_usage. like, it decides who gets an invite to the party 🎀

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💖 DESCRIPTION 💖

so here's the tea: callers are not required to hold specific locks, but maybe hold dma_resv_lock already. so lowkey flexible, highkey still pay attention 😭

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⭐ RETURNS ⭐

True if all fences signaled, else false. periodt 💀

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/dma-buf/dma-resv.c
• 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_copy_fences(9)
• dma_resv_get_fences(9)
• dma_resv_get_singleton(9)
• dma_resv_wait_timeout(9)
• dma_resv_set_deadline(9)
• dma_resv_describe(9)

like, the whole friend group fr fr 👑💜

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and that's the page bestie!! 🧚 she's sourced from ./drivers/dma-buf and dated October 2026 — slay, remember it, cite it, love it 💖✨🍓