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    SubjectRe: BIG files & file systems
    On Wed, Jul 31, 2002 at 11:51:19PM -0400, Jan Harkes wrote:
    > On Wed, Jul 31, 2002 at 05:13:46PM -0400, Alexander Viro wrote:
    > > You _do_ need unique ->st_ino from stat(2), though - otherwise tar(1)
    > > and friends will break in all sorts of amusing ways. And there's
    > > nothing kernel can do about that - applications expect 32bit st_ino
    > > (compare them as 32bit values, etc.)
    > Which is why "tar and friends" are to different extents already broken
    > on various filesystems like Coda, NFS, NTFS, ReiserFS, and probably XFS.
    > (i.e. anything that currently uses iget5_locked instead of iget to grab
    > the inode).

    In theory? Maybe.

    In practice, a lot more than just "tar and friends" assume that inodes
    are unique...

    mark (who recently, *continues* to write code that makes this assumption,
    although, granted, most of the checks are 'file caching'-type
    checks, and it isn't likely that a file will be the same size, the
    same inode, the same device, and the same path...)

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