[lkml]   [2004]   [Sep]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: Major XFS problems...
    On Fri, 2004-09-10 at 13:04, Kyle Moffett wrote:
    > On Sep 09, 2004, at 22:40, Greg Banks wrote:
    > > Like I said, knfsd does unnatural things to the dcache.
    > Perhaps there needs to be a standard API that knfsd can use to do many
    > of the (currently) non-standard dcache operations. This would likely be
    > useful for other kernel-level file-servers that would be useful to have
    > (OpenAFS? Coda?). Of course, I could just be totally ignorant of some
    > nasty reason for the unstandardized hackery, but it doesn't hurt to
    > ask. :-D

    In 2.6 there is an API and knfsd code is less interwoven with dcache
    internals. In practice what this means is that the dcache code paths
    which are only exercised by NFS move from NFS code into fs/dcache.c
    and fs/exportfs/ and have a pretty wrapper but are not any less
    unnatural or NFS-specific. The problem is the need to convert an NFS
    file handle off the wire (which contains an inode number) into a dentry.
    This kind of bottom-up construction of dentry paths is *painful* as
    the dcache really wants to grow from an fs root down.

    Greg Banks, R&D Software Engineer, SGI Australian Software Group.
    I don't speak for SGI.

    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to
    More majordomo info at
    Please read the FAQ at

     \ /
      Last update: 2005-03-22 14:06    [W:0.020 / U:3.440 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site