linux-kernel - Re: [PATCH 08/15] kexec: New syscall kexec_file

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Message-ID: <CALCETrU8mixFxpS2Bt2Q7S08zUFxZwE1zfqHw8PEetqewgR7RQ@mail.gmail.com>
Date:	Thu, 26 Jun 2014 14:03:17 -0700
From:	Andy Lutomirski <luto@...capital.net>
To:	Vivek Goyal <vgoyal@...hat.com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	kexec@...ts.infradead.org,
	Michael Kerrisk-manpages <mtk.manpages@...il.com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	Matthew Garrett <mjg59@...f.ucam.org>,
	Greg Kroah-Hartman <greg@...ah.com>,
	Borislav Petkov <bp@...en8.de>, dyoung@...hat.com,
	chaowang@...hat.com, bhe@...hat.com,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linux API <linux-api@...r.kernel.org>
Subject: Re: [PATCH 08/15] kexec: New syscall kexec_file_load() declaration

On Thu, Jun 26, 2014 at 1:43 PM, Vivek Goyal <vgoyal@...hat.com> wrote:
> On Thu, Jun 26, 2014 at 04:33:37PM -0400, Vivek Goyal wrote:
>> This is the new syscall kexec_file_load() declaration/interface. I have
>> reserved the syscall number only for x86_64 so far. Other architectures
>> (including i386) can reserve syscall number when they enable the support
>> for this new syscall.
>>
>> Signed-off-by: Vivek Goyal <vgoyal@...hat.com>
>> CC: linux-api@...r.kernel.org
>
> +.BR KEXEC_FILE_NO_INITRAMFS
> +Loading initrd/initramfs is optional. Specify this flag if no initramfs
> +is being loaded. If this flag is set, kernel will ignore the value passed
> +in

This seems pointless.  Why not just pass -1 for initrd_fd to indicate
that no initrd is needed?

--Andy
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