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    SubjectRe: invalidate_inode_pages in 2.5.32/3
    On Thu, 12 Sep 2002, Andrew Morton wrote:
    > Rik van Riel wrote:

    > > invalidate_page(struct page * page) {

    > That's the bottom-up approach. The top-down (vmtruncate) approach
    > would also work, if the locking is suitable.

    The top-down approach will almost certainly be most efficient when
    invalidating a large chunk of a file (truncate, large file locks)
    while the bottom-up approach is probably more efficient when the
    system invalidates very few pages (small file lock, cluster file
    system mmap() support).

    regards,

    Rik
    --
    Bravely reimplemented by the knights who say "NIH".

    http://www.surriel.com/ http://distro.conectiva.com/

    Spamtraps of the month: september@surriel.com trac@trac.org

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