cvs commit: src/sys/kern vfs_syscalls.c

Matthew Dillon dillon at
Tue Aug 16 12:40:57 PDT 2005

    Uh, no.  The part about the files being the same is clearly
    NOT about symlinks at all.  Those are a random tumble of disjoint
    requirements, they are not related to each other in any way.  Rename
    does NOT resolve symlinks.  It never has, it never will.

    They also can't be refering to hardlinks, or the standard would say

    They have to be refering to the paths resolving to the same
    identical namespace, in which case we are right, linux is right,
    and FreeBSD is wrong. 

    It's simple and straightfoward, not ultra complex.  It is not
    rename's responsibility to validate or resolve symlinks, or to
    treat hardlinks as a special case.  rename is entirely a namespace
    operation.  The only requirements are that it disallow impossible
    combinations, such as trying to rename a file over a directory,
    or rename a directory into a sub-directory of itself.


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