Re: How to get vfsmount from inode?

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chrisat_private

* Omen Wild (Omen.Wildat_private) wrote:
> I have an inode, I would like to call dentry_open.  I can get the
> dentry.  I cannot figure out how to get the vfsmount to pass to
> dentry_open.  Any ideas?

There is no clean way to get it.  All vfsmounts are created equal
(similar to hard links on inodes) so distinguishing from multiple mounts
and bind mounts is not possible.  So, at best you can guess, or try them
all.

One way to know that they at least match is to look at the super_block's
root and compare it against the mountpoint's root for each mountpoint in
your namespace.  Less than ideal, but it will work.  Then you get to
decide what to do if there is more than one match ;-)

thanks,
-chris
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