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From: Jani Nikula <jani.nikula@linux.intel.com>
To: Luis Chamberlain <mcgrof@kernel.org>,
	keescook@chromium.org, yzaikin@google.com, nixiaoming@huawei.com,
	ebiederm@xmission.com, axboe@kernel.dk, clemens@ladisch.de,
	arnd@arndb.de, gregkh@linuxfoundation.org,
	joonas.lahtinen@linux.intel.com, rodrigo.vivi@intel.com,
	airlied@linux.ie, daniel@ffwll.ch, benh@kernel.crashing.org,
	rdna@fb.com, viro@zeniv.linux.org.uk, mark@fasheh.com,
	jlbec@evilplan.org, joseph.qi@linux.alibaba.com, vbabka@suse.cz,
	sfr@canb.auug.org.au, jack@suse.cz, amir73il@gmail.com,
	rafael@kernel.org, tytso@mit.edu
Cc: intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org,
	dri-devel@lists.freedesktop.org, julia.lawall@lip6.fr,
	akpm@linux-foundation.org, linuxppc-dev@lists.ozlabs.org,
	ocfs2-devel@oss.oracle.com
Subject: [Ocfs2-devel] [PATCH 01/13] sysctl: add new register_sysctl_subdir() helper
Date: Fri, 29 May 2020 11:13:21 +0300	[thread overview]
Message-ID: <87d06n17mm.fsf@intel.com> (raw)
In-Reply-To: <20200529074108.16928-2-mcgrof@kernel.org>

On Fri, 29 May 2020, Luis Chamberlain <mcgrof@kernel.org> wrote:
> Often enough all we need to do is create a subdirectory so that
> we can stuff sysctls underneath it. However, *if* that directory
> was already created early on the boot sequence we really have no
> need to use the full boiler plate code for it, we can just use
> local variables to help us guide sysctl to place the new leaf files.

I find it hard to figure out the lifetime requirements for the tables
passed in; when it's okay to use local variables and when you need
longer lifetimes. It's not documented, everyone appears to be using
static tables for this. It's far from obvious.

BR,
Jani.


-- 
Jani Nikula, Intel Open Source Graphics Center

  reply	other threads:[~2020-05-29  8:13 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-29  7:40 [Ocfs2-devel] [PATCH 00/13] sysctl: spring cleaning Luis Chamberlain
2020-05-29  7:40 ` [Ocfs2-devel] [PATCH 01/13] sysctl: add new register_sysctl_subdir() helper Luis Chamberlain
2020-05-29  8:13   ` Jani Nikula [this message]
2020-05-29 12:16     ` Luis Chamberlain
2020-05-29 12:40   ` Eric W. Biederman
2020-05-29 12:42     ` Eric W. Biederman
2020-05-29  7:40 ` [Ocfs2-devel] [PATCH 02/13] cdrom: use new sysctl subdir helper register_sysctl_subdir() Luis Chamberlain
2020-05-29 12:46   ` Eric W. Biederman
2020-05-29  7:40 ` [Ocfs2-devel] [PATCH 03/13] hpet: " Luis Chamberlain
2020-05-29  7:40 ` [Ocfs2-devel] [PATCH 04/13] i915: " Luis Chamberlain
2020-05-29  7:41 ` [Ocfs2-devel] [PATCH 05/13] macintosh/mac_hid.c: " Luis Chamberlain
2020-05-29  7:41 ` [Ocfs2-devel] [PATCH 06/13] ocfs2: " Luis Chamberlain
2020-05-29  8:23   ` Kees Cook
2020-05-29 11:49     ` [Ocfs2-devel] [Intel-gfx] " Luis Chamberlain
2020-05-29 14:49       ` Kees Cook
2020-05-29  7:41 ` [Ocfs2-devel] [PATCH 07/13] test_sysctl: " Luis Chamberlain
2020-05-29  7:41 ` [Ocfs2-devel] [PATCH 08/13] inotify: simplify sysctl declaration with register_sysctl_subdir() Luis Chamberlain
2020-05-29  7:41 ` [Ocfs2-devel] [PATCH 09/13] firmware_loader: " Luis Chamberlain
2020-05-29 10:26   ` Greg KH
2020-05-29 11:59     ` Xiaoming Ni
2020-05-29 12:09     ` Luis Chamberlain
2020-05-29  7:41 ` [Ocfs2-devel] [PATCH 10/13] eventpoll: " Luis Chamberlain
2020-05-29  7:41 ` [Ocfs2-devel] [PATCH 11/13] random: " Luis Chamberlain
2020-05-29 10:26   ` Greg KH
2020-05-29 12:09     ` Xiaoming Ni
2020-05-29  7:41 ` [Ocfs2-devel] [PATCH 12/13] sysctl: add helper to register empty subdir Luis Chamberlain
2020-05-29  8:15   ` Kees Cook
2020-05-29 13:03   ` Eric W. Biederman
2020-05-29  7:41 ` [Ocfs2-devel] [PATCH 13/13] fs: move binfmt_misc sysctl to its own file Luis Chamberlain
2020-05-29  8:14   ` Kees Cook
2020-06-04  8:45   ` Xiaoming Ni

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