Re: [PATCH] PAGE_SIZE IO for RAW (RAW VARY)

Badari Pulavarty
2002-01-09T23:49:05Z

Alan,

>
> > If it is not reasonable to fix all the brokern drivers,
> > how about making this configurable (to do variable size IO) ?
> > Do you favour this solution ?
>
> We have hardware that requires aligned power of two for writes (ie 4K on
> 4K boundaries only). The 3ware is one example Jeff Merkey found
>

emm.. come to think of it, I can easily (2 line) change my patch to
do 512 byte buffer heads till we get PAGE alignment and then start
issuing 4K IO buffer heads. What do you think ? will this work ?

And also, do you know any low level drivers Ben mentioning:

> low level drivers, some of which assume that
> all buffer heads within a request have the same block size.

Is it still true for 2.4 ?

Regards,
Badari