Re: [PATCH] printk boot_delay: use loops_per_msec instead of printk_delay_msec
From: Andrew Morton
Date: Tue Jun 23 2009 - 01:56:16 EST
On Tue, 16 Jun 2009 17:02:24 +0800 Dave Young <hidave.darkstar@xxxxxxxxx> wrote:
> Sorry, should post this firstly because the previous printk_delay
> patch depends on this,
> please review, thanks.
> Use loops_per_msec instead of printk_delay_msec for boot printk delay.
The changelog is poor, because it fails to describe _why_ this change
is being made. I rewrote it to
Rename `printk_delay_msec' to `loops_per_msec', because the patch
"printk: add printk_delay to make messages readable for some
scenarios" wishes to more appropriately use the `printk_delay_msec'
> --- linux-2.6.orig/kernel/printk.c 2009-06-15 10:53:10.000000000 +0800
> +++ linux-2.6/kernel/printk.c 2009-06-15 13:17:13.000000000 +0800
> @@ -198,12 +198,11 @@ __setup("log_buf_len=", log_buf_len_setu
> #ifdef CONFIG_BOOT_PRINTK_DELAY
> static unsigned int boot_delay; /* msecs delay after each printk
> during bootup */
> -static unsigned long long printk_delay_msec; /* per msec, based on
> boot_delay */
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