linux-kernel - Re: [patch v2 02/10] kdump: Make kimage_load_crash

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Message-ID: <20110802185530.GH6399@redhat.com>
Date:	Tue, 2 Aug 2011 14:55:30 -0400
From:	Vivek Goyal <vgoyal@...hat.com>
To:	Michael Holzheu <holzheu@...ux.vnet.ibm.com>
Cc:	ebiederm@...ssion.com, mahesh@...ux.vnet.ibm.com, hbabu@...ibm.com,
	oomichi@....nes.nec.co.jp, horms@...ge.net.au,
	schwidefsky@...ibm.com, heiko.carstens@...ibm.com,
	kexec@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linux-s390@...r.kernel.org
Subject: Re: [patch v2 02/10] kdump: Make kimage_load_crash_segment() weak

On Tue, Aug 02, 2011 at 11:30:03AM +0200, Michael Holzheu wrote:
> Hello Vivek,
> 
> On Mon, 2011-08-01 at 16:31 -0400, Vivek Goyal wrote:
> > On Wed, Jul 27, 2011 at 02:55:06PM +0200, Michael Holzheu wrote:
> 
> [snip]
> 
> > > --- a/kernel/kexec.c
> > > +++ b/kernel/kexec.c
> > > @@ -842,8 +842,8 @@ out:
> > >  	return result;
> > >  }
> > >  
> > > -static int kimage_load_crash_segment(struct kimage *image,
> > > -					struct kexec_segment *segment)
> > > +int __weak kimage_load_crash_segment(struct kimage *image,
> > > +				     struct kexec_segment *segment)
> > 
> > A comment here why we are making it weak should help in increasing
> > the code readability.
> 
> What about the following:
> 
> /*
>  * Load crash segment into memory. Architecture code can override this
>  * function. E.g. this is necessary for architectures that do not
>  * create page tables for crashkernel memory.
>  */
> int __weak kimage_load_crash_segment(struct kimage *image,

This looks better.

Thanks
Vivek
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