Don Lewis 1dd5fc0fde Tweak previous vfs_lookup.c commit to return an EINVAL error from
lookup() instead of EPERM when a DELETE or RENAME operation is
attempted on "..".

In kern_unlink(), remap EINVAL errors returned from namei() to EPERM
to match existing (and POSIX required) behaviour.

Discussed with:	bde
MFC after:	3 days
2006-01-22 19:37:02 +00:00
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