Magic Buffers and io_uring Registered Buffers

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	Magic Buffers and io_uring Registered Buffers (mindfruit.co.uk)
	24 points by tosh 4 days ago

2 comments

loeg 1 day ago

Hm. Why wouldn't it work? The user wrote to the physical page backing both the non-doubled and doubled extent.

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dmitrygr 1 day ago

Re: magic buffers. Try this on a machine with a VIVT data cache and have fun debugging. The kernel will let you make the mappings, and then hilarity will ensue ;)

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