lkml.org 
[lkml]   [2006]   [Sep]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    From
    SubjectRe: [PATCH 0/7] Permit filesystem local caching and NFS superblock sharing [try #13]
    Date
    Ian Kent <raven@themaw.net> wrote:

    > > Not if you've already caused the NFS filesystem to create a "dummy" dentry
    > > that's a directory because you couldn't see that what that name
    > > corresponds to on the server is actually a symlink.
    >
    > Shouldn't stat tell me if this is a symlink?

    You may not be able to find out from the server what it is you're trying to
    deal with because you may not have permission to do so, or because whatever it
    is may not be exported. The first may be the trickiest to deal with because
    the MOUNT service for NFS2 and NFS3 can jump you over bits of the path you
    can't otherwise access.

    The problem actually comes when the conditions on the server change; perhaps an
    intermediate directory is made accessible on the server and suddenly the client
    can see inside of it. It may then find out that what it had assumed to be
    directories, and what it had set dummy directory dentries up for, aren't.

    David
    -
    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/

    \
     
     \ /
      Last update: 2006-09-06 11:55    [W:3.952 / U:0.720 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site