https://bugzilla.novell.com/show_bug.cgi?id=728774
https://bugzilla.novell.com/show_bug.cgi?id=728774#c49
--- Comment #49 from Jeff Mahoney 2012-07-09 22:27:36 EDT ---
That would result in two file descriptors pointing to two struct files (like
when you open the same file twice) instead of two file descriptors pointing to
one struct file (like when you dup()). This is because the ->open happens with
an already-allocated struct file and there's no way to pass back a different
one, which is what would be required.
I'll dig a little deeper for this, but it may be a limitation of the Linux VFS.
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