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From: Linus Torvalds <torvalds@linux-foundation.org>
To: "Kirill A. Shutemov" <kirill@shutemov.name>
Cc: Mauro Carvalho Chehab <mchehab@redhat.com>,
	Ming Lei <ming.lei@canonical.com>,
	Greg KH <gregkh@linuxfoundation.org>, Kay Sievers <kay@vrfy.org>,
	Lennart Poettering <lennart@poettering.net>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Kay Sievers <kay@redhat.com>,
	Linux Media Mailing List <linux-media@vger.kernel.org>,
	Michael Krufky <mkrufky@linuxtv.org>,
	Ivan Kalvachev <ikalvachev@gmail.com>
Subject: Re: Access files from kernel
Date: Wed, 3 Oct 2012 13:32:06 -0700	[thread overview]
Message-ID: <CA+55aFy+AgfVTP=_0n0k2Zq39RVx6ywZpx8FkHvDjsJWGS+RkQ@mail.gmail.com> (raw)
In-Reply-To: <20121003194819.GA2490@shutemov.name>

On Wed, Oct 3, 2012 at 12:48 PM, Kirill A. Shutemov
<kirill@shutemov.name> wrote:
>
> AFAIK, accessing files on filesystem form kernel directly was no-go for a
> long time. What's the new rule here?

Oh, we've *always* accessed files from the kernel.

What we don't want is random drivers doing so directly and without a
good abstraction layer, because that just ends up being a total
nightmare.

Still, they've done that too. Ugh. Too many drivers having random
hacks like that.

            Linus

  reply	other threads:[~2012-10-03 20:32 UTC|newest]

Thread overview: 83+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-06-21 13:36 [PATCH] [media] drxk: change it to use request_firmware_nowait() Mauro Carvalho Chehab
2012-06-21 14:21 ` Devin Heitmueller
2012-06-21 15:09   ` Mauro Carvalho Chehab
2012-06-21 19:10 ` Mauro Carvalho Chehab
2012-06-22 14:11   ` Marko Ristola
2012-06-25 19:15   ` Antti Palosaari
2012-06-25 20:06     ` Mauro Carvalho Chehab
2012-06-25 20:47       ` Need of an ".async_probe()" type of callback at driver's core - Was: " Mauro Carvalho Chehab
2012-06-25 20:49       ` Mauro Carvalho Chehab
2012-06-25 22:33         ` Greg KH
2012-06-26  1:55           ` Mauro Carvalho Chehab
2012-06-26 19:34             ` [PATCH RFC 0/4] Defer probe() on em28xx when firmware load is required Mauro Carvalho Chehab
2012-06-26 19:34               ` [PATCH RFC 1/4] kmod: add a routine to return if usermode is disabled Mauro Carvalho Chehab
2012-06-26 20:38                 ` Greg KH
2012-06-26 21:05                   ` Mauro Carvalho Chehab
2012-06-26 19:34               ` [PATCH RFC 2/4] em28xx: defer probe() if userspace mode " Mauro Carvalho Chehab
2012-06-26 20:43                 ` Greg KH
2012-06-26 21:30                   ` Mauro Carvalho Chehab
2012-06-26 19:34               ` [PATCH RFC 3/4] em28xx: Workaround for new udev versions Mauro Carvalho Chehab
2012-06-26 20:40                 ` Greg KH
2012-06-26 21:07                   ` Mauro Carvalho Chehab
2012-06-26 21:56                     ` Kay Sievers
2012-06-26 20:42                 ` Greg KH
2012-06-26 21:21                   ` Mauro Carvalho Chehab
2012-06-26 21:27                     ` Greg KH
2012-06-26 22:01                       ` Mauro Carvalho Chehab
2012-06-28 17:51                         ` Mauro Carvalho Chehab
2012-06-26 19:34               ` [PATCH RFC 4/4] tuner-xc2028: tag the usual firmwares to help dracut Mauro Carvalho Chehab
2012-06-26 20:44                 ` Greg KH
2012-06-26 21:34                   ` Mauro Carvalho Chehab
2012-10-02 13:03             ` udev breakages - was: Re: Need of an ".async_probe()" type of callback at driver's core - Was: Re: [PATCH] [media] drxk: change it to use request_firmware_nowait() Mauro Carvalho Chehab
2012-10-02 16:33               ` Linus Torvalds
2012-10-02 21:03                 ` Ivan Kalvachev
2012-10-02 22:37                   ` Linus Torvalds
2012-10-03 22:15                     ` Lucas De Marchi
2012-10-11 18:33                     ` Shea Levy
2012-10-12  1:55                       ` Ming Lei
2012-10-02 22:12                 ` Greg KH
2012-10-02 22:23                   ` Greg KH
2012-10-02 22:47                     ` Linus Torvalds
2012-10-03  0:01                       ` Jiri Kosina
2012-10-03  0:12                         ` Linus Torvalds
2012-10-04 14:36                           ` Jiri Kosina
2012-10-03 15:13                       ` Mauro Carvalho Chehab
2012-10-03 16:38                         ` Linus Torvalds
2012-10-03 17:00                           ` Linus Torvalds
2012-10-03 17:09                           ` Al Viro
2012-10-03 17:32                             ` Linus Torvalds
2012-10-03 19:26                               ` Al Viro
2012-10-04  0:57                                 ` udev breakages - Nix
2012-10-04 10:35                                   ` Nix
2012-10-03 19:50                               ` udev breakages - was: Re: Need of an ".async_probe()" type of callback at driver's core - Was: Re: [PATCH] [media] drxk: change it to use request_firmware_nowait() Greg KH
2012-10-03 20:39                                 ` Linus Torvalds
2012-10-03 21:04                                   ` Kay Sievers
2012-10-03 21:05                                   ` Greg KH
2012-10-03 21:18                                     ` Kay Sievers
2012-10-03 21:45                                       ` Alan Cox
2012-10-03 21:58                                   ` Lucas De Marchi
2012-10-03 22:17                                     ` Linus Torvalds
2012-10-03 22:48                                   ` Andy Walls
2012-10-03 22:58                                     ` Linus Torvalds
2012-10-04  2:39                                       ` Kay Sievers
2012-10-04 17:29                                         ` udev breakages - Eric W. Biederman
2012-10-04 17:42                                           ` Greg KH
2012-10-04 19:17                                             ` Alan Cox
2012-10-10  3:19                                               ` Felipe Contreras
2012-10-10 16:08                                                 ` Geert Uytterhoeven
2012-10-11  3:32                                             ` Eric W. Biederman
2012-10-04 13:39                                       ` udev breakages - was: Re: Need of an ".async_probe()" type of callback at driver's core - Was: Re: [PATCH] [media] drxk: change it to use request_firmware_nowait() Josh Boyer
2012-10-04 13:58                                         ` Greg KH
2012-10-03 22:53                                   ` Stephen Rothwell
2012-10-03 21:10                                 ` Andy Walls
2012-10-03 19:48                           ` Access files from kernel Kirill A. Shutemov
2012-10-03 20:32                             ` Linus Torvalds [this message]
     [not found]                           ` <CACVXFVNTZmG+zTQNi9mCn9ynsCjkM084TmHKDcYYggtqLfhqNQ@mail.gmail.com>
2012-10-04  1:42                             ` udev breakages - was: Re: Need of an ".async_probe()" type of callback at driver's core - Was: Re: [PATCH] [media] drxk: change it to use request_firmware_nowait() Linus Torvalds
2012-10-03 14:12                     ` Mauro Carvalho Chehab
2012-10-03 14:36                   ` Kay Sievers
2012-10-03 14:44                     ` Linus Torvalds
2012-10-03 16:57                     ` Greg KH
2012-10-03 17:24                       ` Kay Sievers
2012-10-03 18:07                         ` Linus Torvalds
2012-10-03 19:46                       ` Mauro Carvalho Chehab
2012-06-29  8:26       ` Jean Delvare

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