Re: permission() operating on inode instead of dentry?

Shaya Potter (spotter@cs.columbia.edu)
28 May 2003 01:56:20 -0400


I'm going to assume this mean "it's a reasonable idea, all that matters
is the execution"

On Wed, 2003-05-28 at 01:48, viro@parcelfarce.linux.theplanet.co.uk
wrote:
> On Wed, May 28, 2003 at 01:19:40AM -0400, Shaya Potter wrote:
> > [please cc: responses to me, have 10k message backlog in l-k folder)
> >
> > Is there a good reason why the fs permission function operates on the
> > inode instead of the dentry? It would seem if the dentry was passed into
> > the function instead of the inode, one would have a better structure to
> > play with, such as being able to use d_put() to get the real path name.
> > The inode is still readily accessible from the dentry.
>
> man grep.
>
> Then use the resulting knowledge to find the callers of said function in
> the tree.
>
> Then think where you would get dentry (and vfsmount, since you want path)
> for each of these. Exclude ones that have them available. See which
> functions contain the rest of calls.

Why would the calling process not be the right place? Everything should
have a calling process, or am I missing something?

<snipped how to get it done>

thanks,

shaya

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