linux-kernel - Re: [PATCH 2/7] cgroup: fix comments

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Date:	Tue, 19 Feb 2008 19:01:44 -0800
From:	"Paul Menage" <menage@...gle.com>
To:	"Li Zefan" <lizf@...fujitsu.com>
Cc:	"Andrew Morton" <akpm@...ux-foundation.org>,
	"KAMEZAWA Hiroyuki" <kamezawa.hiroyu@...fujitsu.com>,
	LKML <linux-kernel@...r.kernel.org>,
	containers@...ts.linux-foundation.org
Subject: Re: [PATCH 2/7] cgroup: fix comments

On Feb 17, 2008 9:49 PM, Li Zefan <lizf@...fujitsu.com> wrote:
> fix:
> - comments about need_forkexit_callback
> - comments about release agent
> - typo and comment style, etc.
>
> Signed-off-by: Li Zefan <lizf@...fujitsu.com>
> ---
>  include/linux/cgroup.h |    2 +-
>  kernel/cgroup.c        |   44 +++++++++++++++++++++-----------------------
>  2 files changed, 22 insertions(+), 24 deletions(-)
>
> diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
> index ff9055f..2ebf7af 100644
> --- a/include/linux/cgroup.h
> +++ b/include/linux/cgroup.h
> @@ -175,7 +175,7 @@ struct css_set {
>   *
>   *
>   * When reading/writing to a file:
> - *     - the cgroup to use in file->f_dentry->d_parent->d_fsdata
> + *     - the cgroup to use is file->f_dentry->d_parent->d_fsdata
>   *     - the 'cftype' of the file is file->f_dentry->d_fsdata
>   */
>
> diff --git a/kernel/cgroup.c b/kernel/cgroup.c
> index 4766bb6..0c35022 100644
> --- a/kernel/cgroup.c
> +++ b/kernel/cgroup.c
> @@ -113,9 +113,9 @@ static int root_count;
>  #define dummytop (&rootnode.top_cgroup)
>
>  /* This flag indicates whether tasks in the fork and exit paths should
> - * take callback_mutex and check for fork/exit handlers to call. This
> - * avoids us having to do extra work in the fork/exit path if none of the
> - * subsystems need to be called.
> + * check for fork/exit handlers to call. This avoids us having to do
> + * extra work in the fork/exit path if none of the subsystems need to
> + * be called.
>   */
>  static int need_forkexit_callback;
>
> @@ -507,8 +507,8 @@ static struct css_set *find_css_set(
>   * critical pieces of code here.  The exception occurs on cgroup_exit(),
>   * when a task in a notify_on_release cgroup exits.  Then cgroup_mutex
>   * is taken, and if the cgroup count is zero, a usermode call made
> - * to /sbin/cgroup_release_agent with the name of the cgroup (path
> - * relative to the root of cgroup file system) as the argument.
> + * to the release agent with the name of the cgroup (path relative to
> + * the root of cgroup file system) as the argument.
>   *
>   * A cgroup can only be deleted if both its 'count' of using tasks
>   * is zero, and its list of 'children' cgroups is empty.  Since all
> @@ -521,7 +521,7 @@ static struct css_set *find_css_set(
>   *
>   * The need for this exception arises from the action of
>   * cgroup_attach_task(), which overwrites one tasks cgroup pointer with
> - * another.  It does so using cgroup_mutexe, however there are
> + * another.  It does so using cgroup_mutex, however there are
>   * several performance critical places that need to reference
>   * task->cgroup without the expense of grabbing a system global
>   * mutex.  Therefore except as noted below, when dereferencing or, as
> @@ -1192,7 +1192,7 @@ static void get_first_subsys(const struct cgroup *cgrp,
>   * Attach task 'tsk' to cgroup 'cgrp'
>   *
>   * Call holding cgroup_mutex.  May take task_lock of
> - * the task 'pid' during call.
> + * the task 'tsk' during call.
>   */
>  int cgroup_attach_task(struct cgroup *cgrp, struct task_struct *tsk)
>  {
> @@ -1584,12 +1584,11 @@ static int cgroup_create_file(struct dentry *dentry, int mode,
>  }
>
>  /*

I think that docbook-style function comments need /** at the start of
the comment block.

Thanks,

Paul
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