Messages in this thread | | | Date | Fri, 11 Jan 2013 18:56:58 +0400 | From | Stanislav Kinsbursky <> | Subject | Re: [Devel] [PATCH 2/6] nfsd: swap fs root in NFSd kthreads |
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11.12.2012 19:35, J. Bruce Fields пишет: > On Tue, Dec 11, 2012 at 10:20:36AM -0500, J. Bruce Fields wrote: >> On Tue, Dec 11, 2012 at 07:07:00PM +0400, Stanislav Kinsbursky wrote: >>> I don't really understand, how mountd's root can be wrong. I.e. >>> its' always right as I see it. NFSd kthreads have to swap/use >>> relative path/whatever to communicate with proper mountd. >>> Or I'm missing something? >> >> Ugh, I see the problem: I thought svc_export_request was called at the >> time mountd does the read, but instead its done at the time nfsd does >> the upcall. >> >> I suspect that's wrong, and we really want this done in the context of >> the mountd process when it does the read call. If d_path is called >> there then we have no problem. > > Right, so I'd be happier if we could modify sunrpc_cache_pipe_upcall to > skip calling cache_request and instead delay that until cache_read(). I > think that should be possible. >
So, Bruce, what we going to do (or what you want me to do) with the rest of NFSd changes? I.e. how I should solve this d_path() problem? I.e. I don't understand what did you mean by "I'd be happier if we could modify sunrpc_cache_pipe_upcall to skip calling cache_request and instead delay that until cache_read()". Could you give me a hint?
> --b. >
-- Best regards, Stanislav Kinsbursky -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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