linux-kernel - Re: [PATCH 2/4] printk: fix some comments

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Date:	Wed, 9 Jul 2014 17:53:53 +0200
From:	Petr Mládek <pmladek@...e.cz>
To:	Alex Elder <elder@...aro.org>
Cc:	akpm@...ux-foundation.org, ak@...ux.intel.com, bp@...e.de,
	jack@...e.cz, john.stultz@...aro.org, rostedt@...dmis.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/4] printk: fix some comments

On Wed 2014-07-09 08:04:14, Alex Elder wrote:
> This patch fixes a few comments that don't accurately describe their
> corresponding code.  It also fixes some minor typographical errors.
> 
> Signed-off-by: Alex Elder <elder@...aro.org>

Nice clean up. All changes make sense to me.

Reviewed-by: Petr Mladek <pmladek@...e.cz>

Best Regards,
Petr

> ---
>  kernel/printk/printk.c | 23 ++++++++++++-----------
>  1 file changed, 12 insertions(+), 11 deletions(-)
> 
> diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
> index ac2b64e..646146c 100644
> --- a/kernel/printk/printk.c
> +++ b/kernel/printk/printk.c
> @@ -113,9 +113,9 @@ static int __down_trylock_console_sem(unsigned long ip)
>   * This is used for debugging the mess that is the VT code by
>   * keeping track if we have the console semaphore held. It's
>   * definitely not the perfect debug tool (we don't know if _WE_
> - * hold it are racing, but it helps tracking those weird code
> - * path in the console code where we end up in places I want
> - * locked without the console sempahore held
> + * hold it and are racing, but it helps tracking those weird code
> + * paths in the console code where we end up in places I want
> + * locked without the console sempahore held).
>   */
>  static int console_locked, console_suspended;
>  
> @@ -146,8 +146,8 @@ static int console_may_schedule;
>   * the overall length of the record.
>   *
>   * The heads to the first and last entry in the buffer, as well as the
> - * sequence numbers of these both entries are maintained when messages
> - * are stored..
> + * sequence numbers of these entries are maintained when messages are
> + * stored.
>   *
>   * If the heads indicate available messages, the length in the header
>   * tells the start next message. A length == 0 for the next message
> @@ -344,7 +344,7 @@ static int log_make_free_space(u32 msg_size)
>  	while (log_first_seq < log_next_seq) {
>  		if (logbuf_has_space(msg_size, false))
>  			return 0;
> -		/* drop old messages until we have enough continuous space */
> +		/* drop old messages until we have enough contiguous space */
>  		log_first_idx = log_next(log_first_idx);
>  		log_first_seq++;
>  	}
> @@ -1476,7 +1476,7 @@ static struct cont {
>  	struct task_struct *owner;	/* task of first print*/
>  	u64 ts_nsec;			/* time of first print */
>  	u8 level;			/* log level of first message */
> -	u8 facility;			/* log level of first message */
> +	u8 facility;			/* log facility of first message */
>  	enum log_flags flags;		/* prefix, newline flags */
>  	bool flushed:1;			/* buffer sealed and committed */
>  } cont;
> @@ -1881,11 +1881,12 @@ static int __add_preferred_console(char *name, int idx, char *options,
>  	return 0;
>  }
>  /*
> - * Set up a list of consoles.  Called from init/main.c
> + * Set up a console.  Called via do_early_param() in init/main.c
> + * for each "console=" parameter in the boot command line.
>   */
>  static int __init console_setup(char *str)
>  {
> -	char buf[sizeof(console_cmdline[0].name) + 4]; /* 4 for index */
> +	char buf[sizeof(console_cmdline[0].name) + 4]; /* 4 for "ttyS" */
>  	char *s, *options, *brl_options = NULL;
>  	int idx;
>  
> @@ -2045,8 +2046,8 @@ EXPORT_SYMBOL(console_lock);
>  /**
>   * console_trylock - try to lock the console system for exclusive use.
>   *
> - * Tried to acquire a lock which guarantees that the caller has
> - * exclusive access to the console system and the console_drivers list.
> + * Try to acquire a lock which guarantees that the caller has exclusive
> + * access to the console system and the console_drivers list.
>   *
>   * returns 1 on success, and 0 on failure to acquire the lock.
>   */
> -- 
> 1.9.1
> 
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