[PATCH v31 09/12] arm64: kdump: provide /proc/vmcore file

[takahiro.akashi@linaro.org (AKASHI Takahiro)]

On Thu, Feb 02, 2017 at 12:08:50PM +0000, Mark Rutland wrote:
> On Thu, Feb 02, 2017 at 12:03:20PM +0000, Mark Rutland wrote:
> > On Thu, Feb 02, 2017 at 03:24:09PM +0900, AKASHI Takahiro wrote:
> > > On Wed, Feb 01, 2017 at 07:21:22PM +0000, Mark Rutland wrote:
> > > > On Wed, Feb 01, 2017 at 09:46:28PM +0900, AKASHI Takahiro wrote:
> 
> > > > > +/*
> > > > > + * reserve_elfcorehdr() - reserves memory for elf core header
> > > > > + *
> > > > > + * This function reserves elf core header given in "elfcorehdr=" kernel
> > > > > + * command line parameter. This region contains all the information about
> > > > > + * primary kernel's core image and is used by a dump capture kernel to
> > > > > + * access the system memory on primary kernel.
> > > > > + */
> 
> > Can you also fix the comment above reserve_elfcorehdr()? It refers to a
> > non-existent kernel command line option.
> 
> ... or rather, one that's handled by core code, not
> reserve_elfcorehdr().
> 
> So more specifically, it would be nicer to have something like:
> 
> 	/*
> 	 * reserve_elfcorehdr() - reserves memory for elf core header
> 	 *
> 	 * This function reserves the memory occupied by an elf core header
> 	 * described in the device tree. This region contains all the
> 	 * information about primary kernel's core image and is used by a dump
> 	 * capture kernel to access the system memory on primary kernel.
> 	 */

Perfect!

Thanks a lot,
-Takahiro AKASHI


> Thanks,
> Mark.