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    SubjectRe: [patch] pagecache SMP-scalability patch [was: spinlock usage]


    On Wed, 21 Mar 2001, Ingo Molnar wrote:

    >
    > On Wed, 21 Mar 2001, Alexander Viro wrote:
    >
    > > > (about lstat(): IMO lstat() should not call into the lowlevel FS code.)
    > >
    > > a) revalidation on network filesystems
    > > b) just about anything layered would win from ability to replace the
    > > normal stat() behaviour (think of UI/GID replacement, etc.)
    >
    > sorry, i meant ext2fs - but this was fixed by your VFS scalability changes
    > already :-)

    ???
    <checking 2.2.0>
    Nope, no calls into ext2/*. do_revalidate() seeing NULL ->i_revalidate
    and doing nothing, lnamei() doing usual lookup, cp_old_stat() not touching
    fs code at all...

    The only change was s/lnamei()/user_path_walk_link()/ and they are
    equivalent, modulo different API (filling nameidata vs. returning
    dentry).
    Cheers,
    Al

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