Messages in this thread | | | Date | Fri, 27 Mar 2009 16:38:35 -0400 | From | Jeff Garzik <> | Subject | Re: Linux 2.6.29 |
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Christoph Hellwig wrote: > And please add a tuneable for the flush. Preferable a generic one at > the block device layer instead of the current mess where every > filesystem has a slightly different option for barrier usage.
At the very least, IMO the block layer should be able to notice when barriers need not be translated into cache flushes. Most notably when wb cache is disabled on the drive, something easy to auto-detect, but probably a manual switch also, for people with enterprise battery-backed storage and such.
Jeff
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