Messages in this thread | | | Date | Mon, 14 Oct 2002 17:16:39 +0100 | From | Christoph Hellwig <> | Subject | Re: [Evms-devel] Re: Linux v2.5.42 |
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On Sun, Oct 13, 2002 at 10:43:55PM -0600, Andreas Dilger wrote: > I never did get a clear understanding why Christoph wants access to > "intermediate" block devices from EVMS, except for the ioctl issue.
It's not really the userspace access that matters (it comes for free when doing it properly) but more that I want to avoid duplicating kernel-internal data structures and code. Just look at ldev_mgr.c in the evms source code and see how much simpler it would get if we merged struct evms_logical_node (and it's members) into struct gendisk and struct block_device - sure that's not a trivial task, but it'll pay out in the long term.
> It's like "ls -l" showing you each and every block that makes up a file, > or "ps aux"
It's more like ps aux showing you all threads of a multithreaded process. Yes, people have turned it off now, but you really want to be able to see it without doing hacks.
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