netdev - Re: [PATCH 1/2] freezer: add unsafe versions of freezable helpers

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Message-ID: <CAMbhsRRiWGrvqTKX_wcQM9v-k9nRuash54uHjXPY+HO4z4K6Dg@mail.gmail.com>
Date:	Mon, 6 May 2013 15:11:02 -0700
From:	Colin Cross <ccross@...roid.com>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Jeff Layton <jlayton@...hat.com>,
	lkml <linux-kernel@...r.kernel.org>,
	Trond Myklebust <Trond.Myklebust@...app.com>,
	Len Brown <len.brown@...el.com>, Pavel Machek <pavel@....cz>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...hat.com>,
	"J. Bruce Fields" <bfields@...ldses.org>,
	"David S. Miller" <davem@...emloft.net>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Mandeep Singh Baines <msb@...omium.org>,
	Paul Walmsley <paul@...an.com>,
	Al Viro <viro@...iv.linux.org.uk>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Oleg Nesterov <oleg@...hat.com>,
	linux-nfs <linux-nfs@...r.kernel.org>,
	Linux PM list <linux-pm@...r.kernel.org>,
	netdev <netdev@...r.kernel.org>, Tejun Heo <tj@...nel.org>,
	Ben Chan <benchan@...omium.org>,
	Steve French <smfrench@...il.com>
Subject: Re: [PATCH 1/2] freezer: add unsafe versions of freezable helpers

On Mon, May 6, 2013 at 2:58 PM, Linus Torvalds
<torvalds@...ux-foundation.org> wrote:
> On Mon, May 6, 2013 at 2:54 PM, Colin Cross <ccross@...roid.com> wrote:
>>>
>>> There are many other possibilities for other codepaths that end up in
>>> wait_for_response(). Once we get a solution in place for NFS, we'll
>>> need to do something very similar for CIFS.
>>
>> Makes sense, I will add CIFS to the patch.  Would you prefer it in the
>> same or separate patches.
>
> Quite frankly, is it worth resurrecting these patches at all?
>
> The only things it actually complained about are not worth the pain
> fixing and are getting explicitly not warned about - is there any
> reason to believe the patches are worth maintaining and the extra
> complexity is worth it?

There was at least one real other case caught when this patch was
applied: https://lkml.org/lkml/2013/3/4/390.  Tejun asked that I
resurrect it because I'm adding some additional APIs similar to
freezable_schedule() and he wanted to make sure they didn't get used
improperly in the future.
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