linux-kernel - Re: [PATCH] Software Suspend: Fix suspend when console is in VT_AUTO/KD

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Message-ID: <20070310222832.GF2674@elf.ucw.cz>
Date:	Sat, 10 Mar 2007 23:28:32 +0100
From:	Pavel Machek <pavel@....cz>
To:	Andrew Johnson <ajohnson@...rinsyc.com>
Cc:	Matthew Garrett <mjg59@...f.ucam.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Software Suspend: Fix suspend when console is in VT_AUTO/KD_GRAPHICS mode

Hi1

> > It should explain why it is okay to proceed when we can't change to
> > text console.
> > 
> See updated comment in attached patch.  It's really up to the caller to
> decide what to do if we can't switch the console - currently all callers
> ignore the return code so I assume that it's okay to proceed anyway.

Ok, I guess the patch is right thing to do after all.  Fix issues
below, append a changelog, and send a patch to lmkl, cc Andrew Morton
and me. Oh and you have my ACK.
								Pavel

> Signed-off-by: Andrew Johnson <ajohnson@...rinsyc.com>
> ---
> diff -rup linux-2.6.20.1/drivers/char/vt.c linux/drivers/char/vt.c
> --- linux-2.6.20.1/drivers/char/vt.c	2007-02-19 22:34:32.000000000 -0800
> +++ linux/drivers/char/vt.c	2007-03-09 15:48:29.000000000 -0800
> @@ -2188,10 +2188,30 @@ static void console_callback(struct work
>  	release_console_sem();
>  }
>  
> -void set_console(int nr)
> +extern char vt_dont_switch;
> +
> +int set_console(int nr)
>  {
> +	struct vc_data *vc = vc_cons[fg_console].d;
> +
> +	if(!vc_cons_allocated(nr) || vt_dont_switch || 

there should be space between "if" and "(".

> diff -rup linux-2.6.20.1/drivers/char/vt_ioctl.c
> linux/drivers/char/vt_ioctl.c
> --- linux-2.6.20.1/drivers/char/vt_ioctl.c	2007-02-19 22:34:32.000000000
> -0800
> +++ linux/drivers/char/vt_ioctl.c	2007-03-08 14:15:41.000000000

And your mailer still wordwraps.

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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