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    Subject[patch] smbfs cache rewrite - 2nd try

    Hello again

    This patch is more complete than the version posted earlier. It implements
    support for OS/2 (and possibly things even older than that :) and have
    been more tested. This borrows a lot from the ncpfs dircache code.

    Smbfs testers wanted, with or without highmem boxes.

    Bugs (believed) fixed vs 2.4.1-pre10:
    + cache code would oops/lockup on highmem machines (too many kmap'ed pages
    and possibly a few other things)
    + readpage/writepage could oops on highmem machines (missing kmap)
    + listing long directories would fail on some dirs on some types of servers
    (from 2.2.18, has nothing to do with the cache code)

    + new cache code creates dentries and inodes from the "findfirst" data,
    reducing the number of smb requests needed to list a directory (ls -l)
    from n/x + n to n/x (where x is the number of entries that fit in one
    + new mount option, ttl, allows control over how long the cache is
    considered valid, default ttl=1000 (1 second).

    Bugs introduced:
    - date conversion may need to do timezone conversion in smbfs
    - 'd; touch dd; d; rm DD; d', where d is an alias for ls -alF, will crash
    on the rm if the server is "old", tested vs a samba server configured to
    talk "LANMAN1". Does not crash when using "NT1".
    Don't know if this is a new or old bug yet.
    - more?
    (this is where you come in ...)

    Download ~57k from:
    (Apply using 'patch -p1' from the linux directory.)


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