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From: Oleg Nesterov <oleg@redhat.com>
To: "Luis R. Rodriguez" <mcgrof@do-not-panic.com>
Cc: gregkh@linuxfoundation.org, dmitry.torokhov@gmail.com,
	falcon@meizu.com, tiwai@suse.de, tj@kernel.org,
	arjan@linux.intel.com, linux-kernel@vger.kernel.org,
	hare@suse.com, akpm@linux-foundation.org,
	penguin-kernel@i-love.sakura.ne.jp,
	joseph.salisbury@canonical.com, bpoirier@suse.de,
	santosh@chelsio.com, "Luis R. Rodriguez" <mcgrof@suse.com>,
	Kay Sievers <kay@vrfy.org>,
	One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk>,
	Tim Gardner <tim.gardner@canonical.com>,
	Pierre Fersing <pierre-fersing@pierref.org>,
	Nagalakshmi Nandigama <nagalakshmi.nandigama@avagotech.com>,
	Praveen Krishnamoorthy <praveen.krishnamoorthy@avagotech.com>,
	Sreekanth Reddy <sreekanth.reddy@avagotech.com>,
	Abhijit Mahajan <abhijit.mahajan@avagotech.com>,
	Casey Leedom <leedom@chelsio.com>,
	Hariprasad S <hariprasad@chelsio.com>,
	MPT-FusionLinux.pdl@avagotech.com, linux-scsi@vger.kernel.org,
	netdev@vger.
Subject: Re: [RFC v2 2/6] driver-core: add driver async_probe support
Date: Fri, 5 Sep 2014 13:24:17 +0200	[thread overview]
Message-ID: <20140905112417.GB22778@redhat.com> (raw)
In-Reply-To: <1409899047-13045-3-git-send-email-mcgrof@do-not-panic.com>

On 09/04, Luis R. Rodriguez wrote:
>
>  struct driver_private {
>  	struct kobject kobj;
>  	struct klist klist_devices;
>  	struct klist_node knode_bus;
>  	struct module_kobject *mkobj;
> +	struct driver_attach_work *attach_work;
>  	struct device_driver *driver;

I am not arguing, just curious...

Are you trying to shrink sizeof(driver_private) ? The code can be simpler
if you just embedd "struct work_struct attach_work" into driver_private,
and you do not need "struct driver_attach_work" or another ->driver pointer
this way.

Oleg.

WARNING: multiple messages have this Message-ID (diff)
From: Oleg Nesterov <oleg@redhat.com>
To: "Luis R. Rodriguez" <mcgrof@do-not-panic.com>
Cc: gregkh@linuxfoundation.org, dmitry.torokhov@gmail.com,
	falcon@meizu.com, tiwai@suse.de, tj@kernel.org,
	arjan@linux.intel.com, linux-kernel@vger.kernel.org,
	hare@suse.com, akpm@linux-foundation.org,
	penguin-kernel@i-love.sakura.ne.jp,
	joseph.salisbury@canonical.com, bpoirier@suse.de,
	santosh@chelsio.com, "Luis R. Rodriguez" <mcgrof@suse.com>,
	Kay Sievers <kay@vrfy.org>,
	One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk>,
	Tim Gardner <tim.gardner@canonical.com>,
	Pierre Fersing <pierre-fersing@pierref.org>,
	Nagalakshmi Nandigama <nagalakshmi.nandigama@avagotech.com>,
	Praveen Krishnamoorthy <praveen.krishnamoorthy@avagotech.com>,
	Sreekanth Reddy <sreekanth.reddy@avagotech.com>,
	Abhijit Mahajan <abhijit.mahajan@avagotech.com>,
	Casey Leedom <leedom@chelsio.com>,
	Hariprasad S <hariprasad@chelsio.com>,
	MPT-FusionLinux.pdl@avagotech.com, linux-scsi@vger.kernel.org,
	netdev@vger.kernel.org
Subject: Re: [RFC v2 2/6] driver-core: add driver async_probe support
Date: Fri, 5 Sep 2014 13:24:17 +0200	[thread overview]
Message-ID: <20140905112417.GB22778@redhat.com> (raw)
In-Reply-To: <1409899047-13045-3-git-send-email-mcgrof@do-not-panic.com>

On 09/04, Luis R. Rodriguez wrote:
>
>  struct driver_private {
>  	struct kobject kobj;
>  	struct klist klist_devices;
>  	struct klist_node knode_bus;
>  	struct module_kobject *mkobj;
> +	struct driver_attach_work *attach_work;
>  	struct device_driver *driver;

I am not arguing, just curious...

Are you trying to shrink sizeof(driver_private) ? The code can be simpler
if you just embedd "struct work_struct attach_work" into driver_private,
and you do not need "struct driver_attach_work" or another ->driver pointer
this way.

Oleg.


  reply	other threads:[~2014-09-05 11:24 UTC|newest]

Thread overview: 227+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-09-05  6:37 [RFC v2 0/6] driver-core: add asynch probe support Luis R. Rodriguez
2014-09-05  6:37 ` [RFC v2 1/6] driver-core: generalize freeing driver private member Luis R. Rodriguez
2014-09-05  6:37 ` [RFC v2 2/6] driver-core: add driver async_probe support Luis R. Rodriguez
2014-09-05 11:24   ` Oleg Nesterov [this message]
2014-09-05 11:24     ` Oleg Nesterov
2014-09-05 17:25     ` Luis R. Rodriguez
2014-09-05 17:25       ` Luis R. Rodriguez
2014-09-05 22:10   ` Dmitry Torokhov
2014-10-20 23:43     ` Luis R. Rodriguez
2014-10-20 23:43       ` Luis R. Rodriguez
2014-10-20 23:43       ` Luis R. Rodriguez
2014-09-05  6:37 ` [RFC v2 3/6] kthread: warn on kill signal if not OOM Luis R. Rodriguez
2014-09-05  6:37   ` Luis R. Rodriguez
2014-09-05  7:19   ` Tejun Heo
2014-09-05  7:19     ` Tejun Heo
2014-09-05  7:47     ` Luis R. Rodriguez
2014-09-05  7:47       ` Luis R. Rodriguez
2014-09-05  7:47       ` Luis R. Rodriguez
2014-09-05  9:14       ` Mike Galbraith
2014-09-05  9:14         ` Mike Galbraith
2014-09-05  9:14         ` Mike Galbraith
2014-09-05 14:12       ` Tejun Heo
2014-09-05 14:12         ` Tejun Heo
2014-09-05 14:12         ` Tejun Heo
2014-09-05 16:44         ` Dmitry Torokhov
2014-09-05 16:44           ` Dmitry Torokhov
2014-09-05 17:49           ` Tejun Heo
2014-09-05 17:49             ` Tejun Heo
2014-09-05 18:10             ` Dmitry Torokhov
2014-09-05 18:10               ` Dmitry Torokhov
2014-09-05 22:29               ` Tejun Heo
2014-09-05 22:29                 ` Tejun Heo
2014-09-05 22:31                 ` Tejun Heo
2014-09-05 22:31                   ` Tejun Heo
2014-09-05 22:49                   ` Dmitry Torokhov
2014-09-05 22:49                     ` Dmitry Torokhov
2014-09-05 22:55                     ` Tejun Heo
2014-09-05 22:55                       ` Tejun Heo
2014-09-05 23:22                       ` Dmitry Torokhov
2014-09-05 23:22                         ` Dmitry Torokhov
2014-09-05 23:32                         ` Tejun Heo
2014-09-05 23:32                           ` Tejun Heo
2014-09-05 22:45                 ` Arjan van de Ven
2014-09-05 22:45                   ` Arjan van de Ven
2014-09-05 22:52                   ` Dmitry Torokhov
2014-09-05 22:52                     ` Dmitry Torokhov
2014-09-05 22:52                     ` Dmitry Torokhov
2014-09-05 22:57                     ` Tejun Heo
2014-09-05 22:57                       ` Tejun Heo
2014-09-05 23:05                     ` Arjan van de Ven
2014-09-05 23:05                       ` Arjan van de Ven
2014-09-05 23:05                       ` Arjan van de Ven
2014-09-05 23:18                       ` Dmitry Torokhov
2014-09-05 23:18                         ` Dmitry Torokhov
2014-09-05 23:18                         ` Dmitry Torokhov
2014-09-05 18:12             ` Luis R. Rodriguez
2014-09-05 18:12               ` Luis R. Rodriguez
2014-09-05 18:12               ` Luis R. Rodriguez
2014-09-05 18:29               ` Dmitry Torokhov
2014-09-05 18:29                 ` Dmitry Torokhov
2014-09-05 18:29                 ` Dmitry Torokhov
2014-09-05 22:40               ` Tejun Heo
2014-09-05 22:40                 ` Tejun Heo
2014-09-05 22:40                 ` Tejun Heo
2014-09-09  1:04                 ` Luis R. Rodriguez
2014-09-09  1:04                   ` Luis R. Rodriguez
2014-09-09  1:04                   ` Luis R. Rodriguez
2014-09-09  1:10                   ` Tejun Heo
2014-09-09  1:10                     ` Tejun Heo
2014-09-09  1:10                     ` Tejun Heo
2014-09-09  1:13                     ` Tejun Heo
2014-09-09  1:13                       ` Tejun Heo
2014-09-09  1:13                       ` Tejun Heo
2014-09-09  1:22                     ` Tejun Heo
2014-09-09  1:22                       ` Tejun Heo
2014-09-09  1:22                       ` Tejun Heo
2014-09-09  1:26                       ` Luis R. Rodriguez
2014-09-09  1:26                         ` Luis R. Rodriguez
2014-09-09  1:26                         ` Luis R. Rodriguez
2014-09-09  1:29                         ` Tejun Heo
2014-09-09  1:29                           ` Tejun Heo
2014-09-09  1:29                           ` Tejun Heo
2014-09-09  1:38                           ` Luis R. Rodriguez
2014-09-09  1:38                             ` Luis R. Rodriguez
2014-09-09  1:38                             ` Luis R. Rodriguez
2014-09-09  1:47                             ` Tejun Heo
2014-09-09  1:47                               ` Tejun Heo
2014-09-09  1:47                               ` Tejun Heo
2014-09-09  2:28                               ` Luis R. Rodriguez
2014-09-09  2:28                                 ` Luis R. Rodriguez
2014-09-09  2:28                                 ` Luis R. Rodriguez
2014-09-09  2:39                                 ` Tejun Heo
2014-09-09  2:39                                   ` Tejun Heo
2014-09-09  2:39                                   ` Tejun Heo
2014-09-09  2:57                                   ` Luis R. Rodriguez
2014-09-09  2:57                                     ` Luis R. Rodriguez
2014-09-09  2:57                                     ` Luis R. Rodriguez
2014-09-09  3:03                                     ` Tejun Heo
2014-09-09  3:03                                       ` Tejun Heo
2014-09-09  3:03                                       ` Tejun Heo
2014-09-09  3:19                                       ` Luis R. Rodriguez
2014-09-09  3:19                                         ` Luis R. Rodriguez
2014-09-09  3:19                                         ` Luis R. Rodriguez
2014-09-09  3:25                                         ` Tejun Heo
2014-09-09  3:25                                           ` Tejun Heo
2014-09-09  3:25                                           ` Tejun Heo
2014-09-09 23:03                                           ` Tejun Heo
2014-09-09 23:03                                             ` Tejun Heo
2014-09-09 23:03                                             ` Tejun Heo
2014-09-12 20:14                                             ` Luis R. Rodriguez
2014-09-12 20:14                                               ` Luis R. Rodriguez
2014-09-22 16:36                                     ` Luis R. Rodriguez
2014-09-22 16:36                                       ` Luis R. Rodriguez
2014-09-10  5:13                         ` Tom Gundersen
2014-09-10  5:13                           ` Tom Gundersen
2014-09-10  5:13                           ` Tom Gundersen
2014-09-09  5:38                     ` James Bottomley
2014-09-09  5:38                       ` James Bottomley
2014-09-09  5:38                       ` James Bottomley
2014-09-09 19:16                       ` Luis R. Rodriguez
2014-09-09 19:16                         ` Luis R. Rodriguez
2014-09-09 19:16                         ` Luis R. Rodriguez
2014-09-09 19:35                         ` James Bottomley
2014-09-09 19:35                           ` James Bottomley
2014-09-09 19:35                           ` James Bottomley
2014-09-09 20:45                           ` Luis R. Rodriguez
2014-09-09 20:45                             ` Luis R. Rodriguez
2014-09-09 20:45                             ` Luis R. Rodriguez
2014-09-10  6:46                             ` Tom Gundersen
2014-09-10  6:46                               ` Tom Gundersen
2014-09-10  6:46                               ` [systemd-devel] " Tom Gundersen
2014-09-10 10:07                               ` Ceriel Jacobs
2014-09-10 10:07                                 ` Ceriel Jacobs
2014-09-10 10:07                                 ` Ceriel Jacobs
2014-09-10 13:31                                 ` James Bottomley
2014-09-10 13:31                                   ` James Bottomley
2014-09-10 13:31                                   ` James Bottomley
2014-09-10 21:10                               ` Luis R. Rodriguez
2014-09-10 21:10                                 ` Luis R. Rodriguez
2014-09-10 21:10                                 ` [systemd-devel] " Luis R. Rodriguez
2014-09-11  5:42                                 ` Alexander E. Patrakov
2014-09-11  5:42                                   ` Alexander E. Patrakov
2014-09-11  5:42                                   ` [systemd-devel] " Alexander E. Patrakov
2014-09-11 21:43                                 ` Tom Gundersen
2014-09-11 21:43                                   ` Tom Gundersen
2014-09-11 21:43                                   ` [systemd-devel] " Tom Gundersen
2014-09-11 22:26                                   ` Luis R. Rodriguez
2014-09-11 22:26                                     ` Luis R. Rodriguez
2014-09-11 22:26                                     ` Luis R. Rodriguez
2014-09-12  5:48                                     ` Tom Gundersen
2014-09-12  5:48                                       ` Tom Gundersen
2014-09-12  5:48                                       ` [systemd-devel] " Tom Gundersen
2014-09-12 20:09                                       ` Luis R. Rodriguez
2014-09-12 20:09                                         ` Luis R. Rodriguez
2014-09-12 20:09                                         ` [systemd-devel] " Luis R. Rodriguez
2014-10-10 21:54                                         ` Anatol Pomozov
2014-10-10 21:54                                           ` Anatol Pomozov
2014-10-10 21:54                                           ` [systemd-devel] " Anatol Pomozov
2014-10-10 22:45                                           ` Tom Gundersen
2014-10-10 22:45                                             ` Tom Gundersen
2014-10-10 22:45                                             ` [systemd-devel] " Tom Gundersen
2014-10-15 19:41                                             ` Anatol Pomozov
2014-10-15 19:41                                               ` Anatol Pomozov
2014-10-15 19:41                                               ` [systemd-devel] " Anatol Pomozov
2014-10-15 19:46                                               ` Alexander E. Patrakov
2014-10-15 19:46                                                 ` Alexander E. Patrakov
2014-10-15 19:46                                                 ` [systemd-devel] " Alexander E. Patrakov
2014-09-09 21:42                           ` Tejun Heo
2014-09-09 21:42                             ` Tejun Heo
2014-09-09 21:42                             ` Tejun Heo
2014-09-09 22:26                             ` James Bottomley
2014-09-09 22:26                               ` James Bottomley
2014-09-09 22:26                               ` James Bottomley
2014-09-09 22:41                               ` Tejun Heo
2014-09-09 22:41                                 ` Tejun Heo
2014-09-09 22:41                                 ` Tejun Heo
2014-09-09 22:46                                 ` James Bottomley
2014-09-09 22:46                                   ` James Bottomley
2014-09-09 22:46                                   ` James Bottomley
2014-09-09 22:52                                   ` Tejun Heo
2014-09-09 22:52                                     ` Tejun Heo
2014-09-09 22:52                                     ` Tejun Heo
2014-09-09 23:01                                   ` Dmitry Torokhov
2014-09-09 23:01                                     ` Dmitry Torokhov
2014-09-09 23:01                                     ` Dmitry Torokhov
2014-09-11 19:59                                     ` James Bottomley
2014-09-11 19:59                                       ` James Bottomley
2014-09-11 19:59                                       ` James Bottomley
2014-09-11 20:23                                       ` Dmitry Torokhov
2014-09-11 20:23                                         ` Dmitry Torokhov
2014-09-11 20:23                                         ` Dmitry Torokhov
2014-09-11 20:42                                         ` Luis R. Rodriguez
2014-09-11 20:42                                           ` Luis R. Rodriguez
2014-09-11 20:42                                           ` Luis R. Rodriguez
2014-09-11 20:53                                           ` Dmitry Torokhov
2014-09-11 20:53                                             ` Dmitry Torokhov
2014-09-11 20:53                                             ` Dmitry Torokhov
2014-09-11 21:08                                             ` Luis R. Rodriguez
2014-09-11 21:08                                               ` Luis R. Rodriguez
2014-09-11 21:08                                               ` Luis R. Rodriguez
2014-09-22 19:49                                         ` Pavel Machek
2014-09-22 19:49                                           ` Pavel Machek
2014-09-22 19:49                                           ` Pavel Machek
2014-09-22 20:23                                           ` Dmitry Torokhov
2014-09-22 20:23                                             ` Dmitry Torokhov
2014-09-22 20:23                                             ` Dmitry Torokhov
2014-09-30 21:06                                             ` Pavel Machek
2014-09-30 21:06                                               ` Pavel Machek
2014-09-30 21:06                                               ` Pavel Machek
2014-09-30 21:34                                               ` Dmitry Torokhov
2014-09-30 21:34                                                 ` Dmitry Torokhov
2014-09-30 21:34                                                 ` Dmitry Torokhov
2014-09-09 22:00                         ` Jiri Kosina
2014-09-09 22:00                           ` Jiri Kosina
2014-09-09 22:00                           ` Jiri Kosina
2014-09-05 10:59   ` Oleg Nesterov
2014-09-05 10:59     ` Oleg Nesterov
2014-09-05 17:35     ` Luis R. Rodriguez
2014-09-05 17:35       ` Luis R. Rodriguez
2014-09-05  6:37 ` [RFC v2 4/6] cxgb4: use async probe Luis R. Rodriguez
2014-09-05  6:37 ` [RFC v2 5/6] mptsas: " Luis R. Rodriguez
2014-09-05  7:16   ` Tejun Heo
2014-09-05  7:23   ` Hannes Reinecke
2014-09-05  6:37 ` [RFC v2 6/6] pata_marvell: " Luis R. Rodriguez
2014-09-05  6:59   ` Alexander E. Patrakov
2014-09-05  7:15   ` Tejun Heo
2014-09-05  7:11 ` [RFC v2 0/6] driver-core: add asynch probe support Tejun Heo

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