Messages in this thread | | | Date | Thu, 1 Aug 2002 08:01:44 -0400 | From | Mark Mielke <> | Subject | Re: BIG files & file systems |
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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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