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Message-ID: <20140225203519.77abfa8d@hananiah.suse.cz>
Date: Tue, 25 Feb 2014 20:35:19 +0100
From: Petr Tesarik <ptesarik@...e.cz>
To: Vivek Goyal <vgoyal@...hat.com>
Cc: Borislav Petkov <bp@...en8.de>, mjg59@...f.ucam.org,
jkosina@...e.cz, greg@...ah.com, kexec@...ts.infradead.org,
linux-kernel@...r.kernel.org, ebiederm@...ssion.com, hpa@...or.com
Subject: Re: [PATCH 06/11] kexec: A new system call, kexec_file_load, for in
kernel kexec
On Mon, 24 Feb 2014 11:41:31 -0500
Vivek Goyal <vgoyal@...hat.com> wrote:
> On Fri, Feb 21, 2014 at 03:59:10PM +0100, Borislav Petkov wrote:
>
>[...]
> >
> > ...
> >
> > > diff --git a/include/uapi/linux/kexec.h b/include/uapi/linux/kexec.h
> > > index d6629d4..5fddb1b 100644
> > > --- a/include/uapi/linux/kexec.h
> > > +++ b/include/uapi/linux/kexec.h
> > > @@ -13,6 +13,10 @@
> > > #define KEXEC_PRESERVE_CONTEXT 0x00000002
> > > #define KEXEC_ARCH_MASK 0xffff0000
> > >
> > > +/* Kexec file load interface flags */
> > > +#define KEXEC_FILE_UNLOAD 0x00000001
> > > +#define KEXEC_FILE_ON_CRASH 0x00000002
> >
> > BIT()
>
> What's that?
#define BIT(nr) (1UL << (nr))
For my part I'm not convinced it's a better way to do it, unless
Borislav also wanted to suggest adding an enum for the bit number
values...
Petr T
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