> I have enclosed a patch that allows rbinds across any two namespaces.
> NOTE: currenly bind from foriegn namespace to current namespace is
> allowed. This patch now allows:
Note: you are accessing ->mnt_namespace without holding vfsmount_lock.
Also why check current->namespace? It doesn't hurt to do
get_namespace() even if it's not strictly needed. And it would
simplify the code.
In fact all uses of current->namespace and check_mnt() could be
eliminated from namespace.c. The only use of ->namespace would be in
copy_namespace() and exit_namespace().
Miklos
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