[PATCH] fix valid_memory_range region merging

Simon Horman horms at verge.net.au
Mon Feb 25 21:29:35 EST 2008


On Thu, Apr 26, 2007 at 04:50:34PM +1000, Michael Neuling wrote:
> Check the next region we are including is type RANGE_RAM as well.
> 
> Signed-off-by: Michael Neuling <mikey at neuling.org>
> ---
> I've not actually seen this cause a problem, but it looks wrong.  We
> should probably merge regions properly and solve this problem for real. 

Hi Michael,

appologies for this blast-from-the-past. This mail somehow
ended up filed in the wrong place and I chanced upon it just now.

This fix does seem correct to me, though I haven't seen it cause
any problems either. I'm happy to merge it (better late than never,
right?) if you are still happy with it.

> 
>  kexec/kexec.c |    3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> Index: kexec-tools-testing/kexec/kexec.c
> ===================================================================
> --- kexec-tools-testing.orig/kexec/kexec.c
> +++ kexec-tools-testing/kexec/kexec.c
> @@ -96,7 +96,8 @@ int valid_memory_range(struct kexec_info
>  		mstart = info->memory_range[i].start;
>  		mend = info->memory_range[i].end;
>  		if (i < info->memory_ranges - 1
> -		    && mend == info->memory_range[i+1].start)
> +		    && mend == info->memory_range[i+1].start
> +		    && info->memory_range[i+1].type == RANGE_RAM)
>  			mend = info->memory_range[i+1].end;
>  
>  		/* Check to see if we are fully contained */

-- 
Horms




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