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    SubjectRe: invalidate_inode_pages in 2.5.32/3
    On Tuesday 10 September 2002 21:04, Chuck Lever wrote:
    > when locking or unlocking a file, the idea is to make sure that other
    > clients can see all changes to the file that were made while it was
    > locked. locking and unlocking provide tighter cache coherency than simple
    > everyday close-to-open because that's why applications go to the trouble
    > of locking a file -- they expect to share the contents of the file with
    > other applications on other clients.
    > when a file is locked, the client wants to be certain it has the latest
    > version of the file for an application to play with. the cache is purged
    > to cause the client to read any recent changes from the server. when a
    > file is unlocked, the client wants to share its changes with other clients
    > so it flushes all pending writes before allowing the unlocking application
    > to proceed.

    This is clear and easy to understand, thanks.

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