Re: [Xen-devel] [patch] Add support for barriers to blk{back,front} drivers.

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

What happens (even on native Linux) if you have, say, a RAID array in which
some of the discs support barriers and others don't? For example, you have a
mirror set where one of the discs supports barriers but the others don't:
what status gets returned? Or you have a RAID-0 set, so that some barrier
writes can succeed and others can't: must the filesystem handle
barrier_write failures at any time?

 -- Keir

On 8/11/06 3:38 pm, "Gerd Hoffmann" <kraxel@xxxxxxx> wrote:

>   Hi,
> 
> ping.  What is the status of this?  Any remaining issues to be solved?
> 
> cheers,
>   Gerd



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