[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] copy on write memory
> It's true, you did mention it before, but I was looking for something > else at the time. What I have in mind doesn't require so much > configuration. On the other hand it doesn't exist, and this does. Ah. I couldn't remember if I'd sent it or not (or if I'd even tried to send it from an address that was on the list, a few go to the same mailbox at the moment) > But the patch is against quite an old source, and it doesn't compile > straight out of the box. Do you know if there are updated patches > against 2.6.9? I can check. > I get this error (which I haven't yet examined in detail): > > CC [M] fs/xip2fs/file.o > fs/xip2fs/file.c: In function `xip2_do_file_read': > fs/xip2fs/file.c:69: error: structure has no member named `buf' > fs/xip2fs/file.c: In function `__xip2_file_aio_read': > fs/xip2fs/file.c:119: error: structure has no member named `buf' > fs/xip2fs/file.c: In function `xip2_file_sendfile': > fs/xip2fs/file.c:302: error: structure has no member named `buf' > > This was against xen-2.0.1 as of today 18 Nov 2004 I highly doubt that it will be directly applicable to xen - the entire backend mechanism is linked into the z/VM shared memory system between guests. I was more pointing it out as a probable jumping off point (most of the work is done, it just needs to use the xen memory sharing instead) and as a workable concept for a less-cpu-intensive copy-on-write mechanism. I'll take a look for a newer patch and see if I can scrape up some time to apply the backend to xen, but I don't know when I'll get a chance -- don't let me hold anyone else up who was considering working on it. -m ------------------------------------------------------- This SF.Net email is sponsored by: InterSystems CACHE FREE OODBMS DOWNLOAD - A multidimensional database that combines robust object and relational technologies, making it a perfect match for Java, C++,COM, XML, ODBC and JDBC. www.intersystems.com/match8 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/xen-devel
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