[PATCH 0/2] pid_ns_release_proc() fixes

[Oleg Nesterov]

On 06/20, Oleg Nesterov wrote:
>
> On 06/20, Eric W. Biederman wrote:
> >
> > Oleg Nesterov <oleg@xxxxxxxxxx> writes:
> >
> > > I am going to simplify, test, and send the fix which moves mntput()
> > > into free_pid_ns() paths.
> >
> > free_pid_ns is comparatively late, to release the kern_mount.
>
> Why?
>
> Once again, it is very possible I am wrong. I forgot this code if ever
> knew. But could you please explain?

So. Please the the patches. On top of

	[PATCH 1/4] procfs: proc_get_sb: consolidate/cleanup root_inode->pid logic
	[PATCH 2/4] procfs: kill the global proc_mnt variable
	[PATCH 3/4] procfs: move pid_ns_prepare_proc() from copy_process() to create_pid_namespace()

Still untested, sorry. There was no electricity in office this weekend,
and I can hardly work from home ;) I am sending this fix for review.

And let me repeat, I do not think this approach is the best (even _if_
this change is correct), just my attempt to fix the bugs.

What do you think?

Oleg.

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