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bcache and cluster filesystems?bcache and cluster filesystems?Posted Jul 10, 2010 11:20 UTC (Sat) by skissane (subscriber, #38675)In reply to: bcache and cluster filesystems? by koverstreet Parent article: Bcache: Caching beyond just RAM
it would be interesting to work out, what extra features would bcache need to provide so that a clustered filesystem could use it without issue... i assume just some API to tell bcache to invalidate some block...
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bcache and cluster filesystems? Posted Jul 11, 2010 3:22 UTC (Sun) by koverstreet (subscriber, #4296) [Link]
Yeah, nothing more complicated than that. Make a new bio flag to invalidate a region of cache, and make sure everything that isn't a cache ignores it. Making bcache handle it would be trivial, it'd just be a matter of making sure ocfs2 always invalidates what it needs to.
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