Re: [RFC PATCH 0/5] userspace PI passthrough via AIO/DIO

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"Darrick J. Wong" <darrick.wong@xxxxxxxxxx> writes:

> This RFC provides a rough implementation of a mechanism to allow
> userspace to attach protection information (e.g. T10 DIF) data to a
> disk write and to receive the information alongside a disk read.  The
> interface is an extension to the AIO interface: two new commands
> (IOCB_CMD_P{READ,WRITE}VM) are provided.  The last struct iovec in the

Sorry for the shallow question, but what does that M stand for?

Cheers,
Jeff

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