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Re: [Xen-devel] [patch] Add support for barriers to blk{back,front} driv
| To: | Gerd Hoffmann <kraxel@xxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] [patch] Add support for barriers to blk{back,front} drivers. |
| From: | Keir Fraser <Keir.Fraser@xxxxxxxxxxxx> |
| Date: | Thu, 09 Nov 2006 09:00:57 +0000 |
| Cc: | Ian Pratt <m+Ian.Pratt@xxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | Thu, 09 Nov 2006 01:01:11 -0800 |
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| Thread-topic: | [Xen-devel] [patch] Add support for barriers to blk{back,front} drivers. |
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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 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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