linux-kernel - Re: [RFC 4/4] {RFC} kmod.c: Add new call_usermodehelper

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Message-ID: <20120322144246.GA13873@redhat.com>
Date:	Thu, 22 Mar 2012 15:42:46 +0100
From:	Oleg Nesterov <oleg@...hat.com>
To:	Boaz Harrosh <bharrosh@...asas.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>,
	"Rafael J. Wysocki" <rjw@...k.pl>, keyrings@...ux-nfs.org,
	linux-security-module@...r.kernel.org,
	linux-fsdevel <linux-fsdevel@...r.kernel.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	NFS list <linux-nfs@...r.kernel.org>,
	Trond Myklebust <Trond.Myklebust@...app.com>,
	"Bhamare, Sachin" <sbhamare@...asas.com>,
	David Howells <dhowells@...hat.com>,
	Eric Paris <eparis@...hat.com>,
	"Srivatsa S. Bhat" <srivatsa.bhat@...ux.vnet.ibm.com>,
	Kay Sievers <kay.sievers@...y.org>,
	James Morris <jmorris@...ei.org>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Greg KH <gregkh@...uxfoundation.org>,
	Rusty Russell <rusty@...tcorp.com.au>,
	Tejun Heo <tj@...nel.org>, David Rientjes <rientjes@...gle.com>
Subject: Re: [RFC 4/4] {RFC} kmod.c: Add new call_usermodehelper_timeout()
	API

BTW,

On 03/22, Oleg Nesterov wrote:
>
> In any case. I do not know why do we need timeout, but this is
> orthogonal to KILLABLE. Please redo your patches on top of -mm
> tree? Please note that in this case the change becomes trivial.

I have found 1-3 on marc.info, they look fine.

But 2/4 is not exactly correct, it forgets to do argv_free() if
call_usermodehelper_fns() returns -ENOMEM. And I guess you forgot
to remove the unused "struct subprocess_info *info".

Oleg.

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