sg_dma_is_swiotlb(9)

✨ sg_dma_is_swiotlb(9) — Kernel API Manual ✨

okay bestie, this is the Kernel API Manual page for sg_dma_is_swiotlb, and it’s lowkey a tiny little vibe check for scatterlists 💅

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🌸 NAME 🌸

sg_dma_is_swiotlb — Return whether the scatterlist was marked for SWIOTLB bouncing 💖

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🦋 SYNOPSIS 🦋

bool sg_dma_is_swiotlb (struct scatterlist *sg );

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🎀 ARGUMENTS 🎀

• sg — SG entry, periodt ✨

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👑 DESCRIPTION 👑

Returns true if the scatterlist was marked for SWIOTLB bouncing. No cap, that’s literally the whole check 💫

Not all elements may have been bounced, so the caller would have to check individual SG entries with swiotlb_find_pool. Like, don’t assume the whole squad got bounced — you gotta look at each entry, iykyk 😭

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🔥 SEE ALSO 🔥

• Kernel file: ./include/linux/scatterlist.h
• sg_next(9)
• sg_assign_page(9)
• sg_set_page(9)
• sg_set_folio(9)
• sg_set_buf(9)
• sg_chain(9)
• sg_mark_end(9)
• sg_unmark_end(9)
• sg_dma_is_bus_address(9)
• sg_dma_mark_bus_address(9)
• sg_dma_unmark_bus_address(9)
• sg_dma_mark_swiotlb(9)
• sg_phys(9)
• sg_virt(9)
• sg_init_marker(9)
• sg_alloc_table_from_pages(9)
• sg_page_iter_page(9)
• sg_page_iter_dma_address(9)
• for_each_sg_page(9)
• for_each_sg_dma_page(9)
• for_each_sgtable_page(9)
• for_each_sgtable_dma_page(9)

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mwah 💋 — this little icon was brought to you by the Kernel API Manual, source path ./include/linux, dated October 2026, filed under sg_dma_is_swiotlb(9) 🫶💖