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From: Linus Torvalds <torvalds@linux-foundation.org>
To: Martin Wilck <mwilck@suse.com>
Cc: "Luis R. Rodriguez" <mcgrof@kernel.org>,
	shuah@kernel.org, Jessica Yu <jeyu@redhat.com>,
	Rusty Russell <rusty@rustcorp.com.au>,
	"Eric W. Biederman" <ebiederm@xmission.com>,
	Dmitry Torokhov <dmitry.torokhov@gmail.com>,
	Arnaldo Carvalho de Melo <acme@redhat.com>,
	Jonathan Corbet <corbet@lwn.net>,
	martin.wilck@suse.com, Michal Marek <mmarek@suse.com>,
	Petr Mladek <pmladek@suse.com>, Hannes Reinecke <hare@suse.com>,
	rwright@hpe.com, Jeff Mahoney <jeffm@suse.com>,
	David Sterba <DSterba@suse.com>,
	fdmanana@suse.com, NeilBrown <neilb@suse.com>,
	Guenter Roeck <linux@roeck-us.net>,
	Goldwyn Rodrigues <rgoldwyn@suse.com>,
	subashab@codeaurora.org, Heinrich Schuchardt <xypron.glpk@gmx.de>,
	Kees Cook <keescook@chromium.org>,
	atomlin@redhat.com, mbenes@suse.cz,
	Paul McKenney <paulmck@linux.vnet.ibm.com>,
	Dan Williams <dan.j.williams@intel.com>,
	Josh Poimboeuf <jpoimboe@redhat.com>,
	David Miller <davem@davemloft.net>,
	Ingo Molnar <mingo@redhat.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	linux-kselftest@vger.kernel.org,
	"open list:DOCUMENTATION" <linux-doc@vger.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [RFC 10/10] kmod: add a sanity check on module loading
Date: Fri, 9 Dec 2016 12:56:21 -0800	[thread overview]
Message-ID: <CA+55aFz49g9+cUZ0Z5BF84f619NHq+sx2pKttryXKhho1u1CBg@mail.gmail.com> (raw)
In-Reply-To: <1481313824.3358.38.camel@suse.com>

On Fri, Dec 9, 2016 at 12:03 PM, Martin Wilck <mwilck@suse.com> wrote:
> On Thu, 2016-12-08 at 11:49 -0800, Luis R. Rodriguez wrote:
>>
>> Although this does get us in the business of keeping alias maps in
>> kernel, the the work to support and maintain this is trivial.
>
> You've implemented a special treatment for request_module("fs-$X")in
> finished_kmod_load(), but there are many more aliases defined (and
> used) in the kernel. Do you plan to implement special code for "char-
> major-$X", "crypto-$X", "binfmt-$X" etc. later?

Yeah, no, that is just complete garbage.

Those module aliases already exist in the module info section. We just
don't parse the alias tags in the kernel.

So the real fix is to make find_module_all() just do that.

Doing random ad-hoc "let's prefix with 'fs-xyz'" games are completely
unacceptable. That's just pure shit. Stop this idiocy.

                Linus

  reply	other threads:[~2016-12-09 20:56 UTC|newest]

Thread overview: 65+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-12-08 18:47 [RFC 00/10] kmod: stress test driver, few fixes and enhancements Luis R. Rodriguez
2016-12-08 18:47 ` [RFC 01/10] kmod: add test driver to stress test the module loader Luis R. Rodriguez
2016-12-08 20:24   ` Kees Cook
2016-12-13 21:10     ` Luis R. Rodriguez
2016-12-16  7:41       ` Luis R. Rodriguez
2016-12-08 19:48 ` [RFC 02/10] module: fix memory leak on early load_module() failures Luis R. Rodriguez
2016-12-08 20:30   ` Kees Cook
2016-12-08 21:10     ` Luis R. Rodriguez
2016-12-08 21:17       ` Kees Cook
2016-12-09 17:06   ` Miroslav Benes
2016-12-16  8:51     ` Luis R. Rodriguez
2016-12-15 18:46   ` Aaron Tomlin
2016-12-08 19:48 ` [RFC 03/10] kmod: add dynamic max concurrent thread count Luis R. Rodriguez
2016-12-08 20:28   ` Kees Cook
2016-12-08 21:00     ` Luis R. Rodriguez
2016-12-14 15:38   ` Petr Mladek
2016-12-16  8:39     ` Luis R. Rodriguez
2017-01-10 19:24       ` Luis R. Rodriguez
2016-12-08 19:48 ` [RFC 04/10] kmod: provide wrappers for kmod_concurrent inc/dec Luis R. Rodriguez
2016-12-08 20:29   ` Kees Cook
2016-12-08 21:08     ` Luis R. Rodriguez
2016-12-15 12:46       ` Petr Mladek
2016-12-16  8:05         ` Luis R. Rodriguez
2016-12-22  4:48           ` Jessica Yu
2017-01-06 20:54             ` Luis R. Rodriguez
2017-01-10 18:57           ` [RFC 04/10] " Luis R. Rodriguez
2017-01-11 20:08             ` Luis R. Rodriguez
2017-05-16 18:02               ` Luis R. Rodriguez
2017-05-18  2:37                 ` Luis R. Rodriguez
2016-12-22  5:07   ` Jessica Yu
2017-01-10 20:28     ` Luis R. Rodriguez
2016-12-08 19:48 ` [RFC 05/10] kmod: return -EBUSY if modprobe limit is reached Luis R. Rodriguez
2016-12-08 19:48 ` [RFC 06/10] kmod: provide sanity check on kmod_concurrent access Luis R. Rodriguez
2016-12-14 16:08   ` Petr Mladek
2016-12-14 17:12     ` Luis R. Rodriguez
2016-12-15 12:57   ` Petr Mladek
2017-01-10 20:00     ` Luis R. Rodriguez
2016-12-08 19:49 ` [RFC 07/10] kmod: use simplified rate limit printk Luis R. Rodriguez
2016-12-14 16:23   ` Petr Mladek
2016-12-14 16:41     ` Joe Perches
2016-12-16  8:44     ` Luis R. Rodriguez
2016-12-08 19:49 ` [RFC 08/10] sysctl: add support for unsigned int properly Luis R. Rodriguez
2016-12-08 19:49 ` [RFC 09/10] kmod: add helpers for getting kmod count and limit Luis R. Rodriguez
2016-12-15 16:56   ` Petr Mladek
2016-12-16  7:57     ` Luis R. Rodriguez
2017-01-11 18:27       ` Luis R. Rodriguez
2016-12-08 19:49 ` [RFC 10/10] kmod: add a sanity check on module loading Luis R. Rodriguez
2016-12-09 20:03   ` Martin Wilck
2016-12-09 20:56     ` Linus Torvalds [this message]
2016-12-15 18:08       ` Luis R. Rodriguez
2016-12-15  0:27   ` Rusty Russell
2016-12-16  8:31     ` Luis R. Rodriguez
2016-12-17  3:54       ` Rusty Russell
     [not found]         ` <CAB=NE6VvuA9a6hf6yoopGfUxVJQM5HyV5bNzUdsEtUV0UhbG-g@mail.gmail.com>
2016-12-20  0:53           ` Rusty Russell
2016-12-20 18:52             ` Luis R. Rodriguez
2016-12-21  2:21               ` Rusty Russell
2016-12-21 13:08                 ` Luis R. Rodriguez
2017-01-03  0:04                   ` Rusty Russell
2017-01-06 20:36                     ` Luis R. Rodriguez
2017-01-06 21:53                       ` Jessica Yu
2017-01-09 20:27                         ` Luis R. Rodriguez
     [not found]                       ` <87bmvgax51.fsf@rustcorp.com.au>
2017-01-09 19:56                         ` [RFC 10/10] " Luis R. Rodriguez
2017-01-06 21:03                     ` Jessica Yu
2017-01-04  2:47   ` Jessica Yu
2017-01-11 19:10 ` [RFC 00/10] kmod: stress test driver, few fixes and enhancements Luis R. Rodriguez

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