Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound event wait

[Ingo Molnar]

On Wed, 7 Feb 2001, Stephen C. Tweedie wrote:

> No, it is a problem of the ll_rw_block interface: buffer_heads need to
> be aligned on disk at a multiple of their buffer size.  Under the Unix
> raw IO interface it is perfectly legal to begin a 128kB IO at offset
> 512 bytes into a device.

then we should either fix this limitation, or the raw IO code should split
the request up into several, variable-size bhs, so that the range is
filled out optimally with aligned bhs.

        Ingo

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