On Wed, Dec 29, 1999 at 04:55:08AM -0800, Adam J. Richter wrote:
> Marc Mutz <[EMAIL PROTECTED]> writes, in response to a request by
> Jason Titus about getting >2GB file support and raid-0.90:
> >2.4 will surely have an up-to-date raid implementation.
> 
>       Features are supposed to get into the "stable" branch like
> 2.4 by first being implemented in an "experimental" 2.3.x or 2.5.x
> branch.  As far as I can tell, nobody has taken this step, so you
> should not be on raid 0.90 being available in 2.4.

        [ These are fuzzy recollections from around Sept 1999 ]

        The  RAID 0.90 code interacts badly with the new page-cache
        system, and its problems are of same type (I recall) as
        RAMDISK has/had.

        I think there are/were also some lock recursion problems when
        going thru  FS->BDEV->RAID->BDEV->DEVICE  layers.
        (After all, RAID looks like a DEVICE for the generic BDEV
         layer which FSes use..)

        Ask Ingo for more info.

> Adam J. Richter     __     ______________   4880 Stevens Creek Blvd, Suite 104
> [EMAIL PROTECTED]     \ /                  San Jose, California 95129-1034

/Matti Aarnio

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