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From: "Herbert, Marc" <marc.herbert@intel.com>
Cc: linuxppc-dev@ozlabs.org, linux-kernel@vger.kernel.org,
	cocci@systeme.lip6.fr, linux-serial@vger.kernel.org,
	linux-doc@vger.kernel.org
Subject: Re: [RFC] fs: add userspace critical mounts event support
Date: Fri, 23 Sep 2016 18:37:28 -0700	[thread overview]
Message-ID: <2deae6da-dd43-7bff-e1fd-ffd26946b928__24322.024282492$1474683075$gmane$org@intel.com> (raw)
In-Reply-To: <CAKdAkRTv5Fv54wetBqkS+EyEuP_k5exJat+QXBLtTkFLO_-maQ@mail.gmail.com>

On 03/09/2016 11:10, Dmitry Torokhov wrote:
> I was thinking if we kernel could post
> "conditions" (maybe simple stings) that it waits for, and userspace
> could unlock these "conditions". One of them might be "firmware
> available".

On idea offered by Josh Triplett that seems to overlap with this one
is to have something similar to the (deprecated) userhelper with
*per-blob* requests and notifications except for one major difference:
userspace would not anymore be in charge of *providing* the blob but
would instead only *signal* when a given blob becomes available and is
either found or found missing. Then the kernel loads the blob _by
itself_; unlike the userhelper. No new “critical filesystem” concept
and a *per-blob basis*, allowing any variation of blob locations
across any number of initramfs and filesystems.

Could this one fly?

  parent reply	other threads:[~2016-09-24  1:37 UTC|newest]

Thread overview: 145+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-06-16 22:54 [PATCH v2 0/5] firmware: add SmPL grammar to avoid issues Luis R. Rodriguez
2016-06-16 22:54 ` [PATCH v2 1/5] MAINTAINERS: extend firmware_class maintainer list Luis R. Rodriguez
2016-06-16 22:54 ` [PATCH v2 2/5] firmware: annotate thou shalt not request fw on init or probe Luis R. Rodriguez
2016-06-16 22:54   ` [Cocci] " Luis R. Rodriguez
2016-06-16 22:54   ` Luis R. Rodriguez
2016-08-24  6:55   ` Daniel Vetter
2016-08-24  6:55     ` [Cocci] " Daniel Vetter
2016-08-24  6:55     ` Daniel Vetter
2016-08-24 20:39     ` Luis R. Rodriguez
2016-08-24 20:39       ` [Cocci] " Luis R. Rodriguez
2016-08-24 20:39       ` Luis R. Rodriguez
2016-08-25 11:05       ` Daniel Vetter
2016-08-25 11:05         ` [Cocci] " Daniel Vetter
2016-08-25 11:05         ` Daniel Vetter
2016-08-25 19:41         ` Luis R. Rodriguez
2016-08-25 19:41           ` [Cocci] " Luis R. Rodriguez
2016-08-25 19:41           ` Luis R. Rodriguez
2016-08-25 20:10           ` Daniel Vetter
2016-08-25 20:10             ` [Cocci] " Daniel Vetter
2016-08-25 20:10             ` Daniel Vetter
2016-08-25 20:25             ` Luis R. Rodriguez
2016-08-25 20:25               ` [Cocci] " Luis R. Rodriguez
2016-08-25 20:25               ` Luis R. Rodriguez
2016-08-25 20:30           ` Dmitry Torokhov
2016-08-25 20:30             ` [Cocci] " Dmitry Torokhov
2016-08-25 20:30             ` Dmitry Torokhov
2016-09-02 23:59           ` Luis R. Rodriguez
2016-09-02 23:59             ` Luis R. Rodriguez
2016-09-03  0:20             ` [RFC] fs: add userspace critical mounts event support Luis R. Rodriguez
2016-09-03  0:20               ` Luis R. Rodriguez
2016-09-03  4:11               ` Linus Torvalds
2016-09-03  4:11                 ` Linus Torvalds
2016-09-03  4:20                 ` Dmitry Torokhov
2016-09-03  4:20                   ` Dmitry Torokhov
2016-09-03  4:41                   ` Linus Torvalds
2016-09-03  4:41                     ` Linus Torvalds
2016-09-03 17:49                     ` Dmitry Torokhov
2016-09-03 17:49                       ` Dmitry Torokhov
2016-09-03 18:01                       ` Linus Torvalds
2016-09-03 18:01                         ` Linus Torvalds
2016-09-03 18:10                         ` Dmitry Torokhov
2016-09-03 18:10                           ` Dmitry Torokhov
2016-09-06 21:52                           ` Luis R. Rodriguez
2016-09-06 21:52                             ` Luis R. Rodriguez
2016-09-06 22:28                             ` Bjorn Andersson
2016-09-06 22:28                               ` Bjorn Andersson
2016-09-06 23:14                               ` Luis R. Rodriguez
2016-09-06 23:14                                 ` Luis R. Rodriguez
2016-09-24  1:37                           ` Herbert, Marc [this message]
2016-09-24  1:37                           ` Herbert, Marc
2016-09-24  1:37                           ` Herbert, Marc
2016-09-24  1:37                             ` Herbert, Marc
2016-09-24 17:41                             ` Dmitry Torokhov
2016-09-24 17:41                               ` Dmitry Torokhov
2016-10-05  0:00                               ` Luis R. Rodriguez
2016-10-05  0:12                                 ` Linus Torvalds
2016-10-05  0:24                                   ` Luis R. Rodriguez
2016-10-05  0:32                                     ` Linus Torvalds
2016-10-05 17:38                                       ` Luis R. Rodriguez
2016-10-05  1:48                                   ` Josh Triplett
2016-10-05  1:58                                     ` Linus Torvalds
2016-09-06 17:46                 ` Bjorn Andersson
2016-09-06 17:46                   ` Bjorn Andersson
2016-09-06 18:32                   ` Linus Torvalds
2016-09-06 18:32                     ` Linus Torvalds
2016-09-06 21:11                     ` Bjorn Andersson
2016-09-06 21:11                       ` Bjorn Andersson
2016-09-06 21:50                       ` Linus Torvalds
2016-09-06 21:50                         ` Linus Torvalds
2016-09-06 23:04                         ` Luis R. Rodriguez
2016-09-06 23:04                           ` Luis R. Rodriguez
2016-09-24  2:51                           ` Herbert, Marc
2016-10-04 23:28                             ` Luis R. Rodriguez
2016-09-06 22:32                     ` Luis R. Rodriguez
2016-09-06 22:32                       ` Luis R. Rodriguez
2016-09-14  2:38               ` Rob Landley
2016-09-14  2:38                 ` Rob Landley
2016-10-05 18:00                 ` Luis R. Rodriguez
2016-10-05 18:00                   ` Luis R. Rodriguez
2016-10-05 18:08                   ` Linus Torvalds
2016-10-05 18:08                     ` Linus Torvalds
2016-10-05 19:46                     ` Luis R. Rodriguez
2016-10-05 19:46                       ` Luis R. Rodriguez
2016-11-08 22:47                       ` Luis R. Rodriguez
2016-11-08 22:47                         ` Luis R. Rodriguez
2016-11-09  9:13                         ` Daniel Wagner
2016-11-09  9:13                           ` Daniel Wagner
2016-11-09 11:21                           ` Andy Lutomirski
2016-11-09 11:21                             ` Andy Lutomirski
2016-11-09 23:53                             ` Luis R. Rodriguez
2016-11-09 23:53                               ` Luis R. Rodriguez
2016-11-29 21:54                             ` Luis R. Rodriguez
2016-11-29 21:54                               ` Luis R. Rodriguez
2016-11-09 23:40                         ` Luis R. Rodriguez
2016-11-09 23:40                           ` Luis R. Rodriguez
2016-11-15  9:28                         ` Johannes Berg
2016-11-15  9:28                           ` Johannes Berg
2016-11-15  9:28                           ` Johannes Berg
2016-11-29 21:10                           ` Tom Gundersen
2016-11-29 21:10                             ` Tom Gundersen
2016-11-29 21:37                             ` Luis R. Rodriguez
2016-11-29 21:37                               ` Luis R. Rodriguez
2016-11-30  8:18                               ` Johannes Berg
2016-11-30  8:18                                 ` Johannes Berg
2016-06-16 22:54 ` [PATCH v2 3/5] firmware: update usermode helper docs and add SmPL report Luis R. Rodriguez
2016-06-16 22:54 ` [PATCH v2 4/5] firmware: add usermode helper DECLARE_FW_LOADER_USER() annotation Luis R. Rodriguez
2016-06-16 22:54 ` [PATCH v2 5/5] firmware: fix fw cache to avoid usermode helper on suspend Luis R. Rodriguez
2016-07-07  0:56 ` [PATCH v2 0/5] firmware: add SmPL grammar to avoid issues Luis R. Rodriguez
2016-07-13 21:47   ` Luis R. Rodriguez
2016-07-28  0:41     ` Luis R. Rodriguez
2016-08-03 14:50       ` Luis R. Rodriguez
2016-08-03 15:04         ` Greg KH
2016-08-03 17:06           ` Luis R. Rodriguez
2016-08-03 19:32             ` Greg KH
2016-08-03 19:46               ` Luis R. Rodriguez
2016-07-13 23:52   ` Fengguang Wu
2016-07-14  2:15     ` Luis R. Rodriguez
2016-07-14  2:23       ` Fengguang Wu
2016-07-14  3:08         ` Luis R. Rodriguez
2016-07-14  3:35           ` Fengguang Wu
2016-08-24  0:45 ` [PATCH v3 " mcgrof
2016-08-24  0:45   ` [PATCH v3 1/5] MAINTAINERS: extend firmware_class maintainer list mcgrof
2016-08-24  0:45   ` [PATCH v3 2/5] firmware: annotate thou shalt not request fw on init or probe mcgrof
2016-08-24  0:45     ` [Cocci] " mcgrof at kernel.org
2016-08-24  0:45     ` mcgrof
2016-08-24  8:17     ` Gabriel Paubert
2016-08-24  8:17       ` [Cocci] " Gabriel Paubert
2016-08-24  8:17       ` Gabriel Paubert
2016-09-02 18:26       ` Luis R. Rodriguez
2016-09-02 18:26         ` Luis R. Rodriguez
2016-08-24  0:45   ` [PATCH v3 3/5] firmware: update usermode helper docs and add SmPL report mcgrof
2016-08-24  0:45   ` [PATCH v3 4/5] firmware: add usermode helper DECLARE_FW_LOADER_USER() annotation mcgrof
2016-08-24  0:45   ` [PATCH v3 5/5] firmware: fix fw cache to avoid usermode helper on suspend mcgrof
2016-08-31  7:03     ` Daniel Wagner
2016-09-02 18:13       ` Luis R. Rodriguez
2016-09-07  0:42   ` [PATCH v4 0/5] firmware: add SmPL grammar to avoid issues Luis R. Rodriguez
2016-09-07  0:42     ` [PATCH v4 1/5] MAINTAINERS: extend firmware_class maintainer list Luis R. Rodriguez
2016-09-07  6:43       ` Greg KH
2016-09-08 14:58         ` Luis R. Rodriguez
2016-09-08 15:25         ` Ming Lei
2016-09-07  0:42     ` [PATCH v4 2/5] firmware: annotate thou shalt not request fw on init or probe Luis R. Rodriguez
2016-09-07  0:42       ` Luis R. Rodriguez
2016-09-07  0:42     ` [PATCH v4 3/5] firmware: update usermode helper docs and add SmPL report Luis R. Rodriguez
2016-09-07  0:42     ` [PATCH v4 4/5] firmware: add usermode helper DECLARE_FW_LOADER_USER() annotation Luis R. Rodriguez
2016-09-07  0:42     ` [PATCH v4 5/5] firmware: fix fw cache to avoid usermode helper on suspend Luis R. Rodriguez

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