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    SubjectRe: Locking comment on shrink_caches()
    On Tue, Sep 25, 2001 at 01:15:28PM -0700, David S. Miller wrote:
    > I do think it's silly to hold the pagecache_lock during pure scanning
    > activities of shrink_caches().

    Indeed again.

    > It is known that pagecache_lock is the biggest scalability issue on
    > large SMP systems, and thus the page cache locking patches Ingo and
    > myself did.

    yes.

    IMHO if we would hold the pagecache lock all the time while shrinking
    the cache, then we could kill the lru lock in first place.

    Andrea
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