Re: [PATCH 11/40] ipv6/flowlabel: simplify pid namespace lookup

On Thu, May 17, 2018 at 12:28:01AM -0500, Eric W. Biederman wrote:
> > struct pid_namespace *proc_pid_namespace(struct inode *inode)
> > {
> > 	// maybe warn on for s_magic not on procfs??
> > 	return inode->i_sb->s_fs_info;
> > }
> 
> That should work.  Ideally out of line for the proc_fs.h version.
> Basically it should be a cousin of PDE_DATA.

The version in Al's tree is inline and without the warning as
I didn't want to drag in the magic.h include.  Please look at it for
additional comments, I can send incremental fixups if needed.

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