[PATCH v2 4/7] xen: Enforce page size only when xen-syms file is used

Atsushi Kumagai kumagai-atsushi at mxc.nes.nec.co.jp
Fri Jul 19 05:20:24 EDT 2013


On Tue, 16 Jul 2013 14:32:06 +0200
Daniel Kiper <daniel.kiper at oracle.com> wrote:

> Enforce page size only when xen-syms file is used.
> Otherwise its size could be read from VMCOREINFO
> file or /proc/vmcore file.
> 
> Signed-off-by: Daniel Kiper <daniel.kiper at oracle.com>
> ---
>  makedumpfile.c |    4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/makedumpfile.c b/makedumpfile.c
> index b42565c..b4abbe5 100644
> --- a/makedumpfile.c
> +++ b/makedumpfile.c
> @@ -7324,8 +7324,6 @@ initial_xen(void)
>  #endif
>  	if (!init_xen_crash_info())
>  		return FALSE;
> -	if (!fallback_to_current_page_size())
> -		return FALSE;
>  	/*
>  	 * Get the debug information for analysis from the vmcoreinfo file
>  	 */
> @@ -7340,6 +7338,8 @@ initial_xen(void)
>  		set_dwarf_debuginfo("xen-syms", NULL,
>  				    info->name_xen_syms, info->fd_xen_syms);
>  
> +		if (!fallback_to_current_page_size())
> +			return FALSE;
>  		if (!get_symbol_info_xen())
>  			return FALSE;
>  		if (!get_structure_info_xen())

This patch has no problem, but I would like to fix a bit for readability.
So could you move the position of fallback_to_current_page_size() to after
this block like initial() ?

makedumpfile.c::initial()

   2972         if (!info->page_size) {
   2973                 /*
   2974                  * If we cannot get page_size from a vmcoreinfo file,
   2975                  * fall back to the current kernel page size.
   2976                  */
   2977                 if (!fallback_to_current_page_size())
   2978                         return FALSE;
   2979         }


Thanks
Atsushi Kumagai



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