Hello.

Trond Myklebust wrote:
quoted text
> > This patch allows LSM hooks refer previously associated "struct vfsmount" parameter
> > so that they can calculate pathname of given "struct dentry".
> 
> NACK to this. Passing function parameters through the task_struct is
> definitely not an acceptable hack (unless you're doing it through the
> stack).

Thanks for your advise.
But I don't know why it is not acceptable.
The topmost vfsmount's address is retrievable through the task_struct,
and non-topmost vfsmount's address (if any) are stored on the stack memory.
Could you show me why this is bad?

Regards.

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