From: Dave Young <dyoung@redhat.com>
To: Thiago Jung Bauermann <bauerman@linux.vnet.ibm.com>
Cc: Stewart Smith <stewart@linux.vnet.ibm.com>,
linuxppc-dev@lists.ozlabs.org, Baoquan He <bhe@redhat.com>,
Michael Ellerman <mpe@ellerman.id.au>,
Balbir Singh <bsingharora@gmail.com>,
x86@kernel.org, kexec@lists.infradead.org,
linux-kernel@vger.kernel.org,
linux-security-module@vger.kernel.org,
Ingo Molnar <mingo@redhat.com>,
Eric Richter <erichte@linux.vnet.ibm.com>,
"H. Peter Anvin" <hpa@zytor.com>,
linux-ima-devel@lists.sourceforge.net,
Thomas Gleixner <tglx@linutronix.de>,
Samuel Mendoza-Jonas <sam@mendozajonas.com>,
Mimi Zohar <zohar@linux.vnet.ibm.com>,
Andrew Morton <akpm@linux-foundation.org>,
Vivek Goyal <vgoyal@redhat.com>,
Eric Biederman <ebiederm@xmission.com>
Subject: Re: [PATCH v2 3/6] kexec_file: Allow skipping checksum calculation for some segments.
Date: Mon, 22 Aug 2016 11:36:43 +0800 [thread overview]
Message-ID: <20160822033643.GA30937@dhcp-128-65.nay.redhat.com> (raw)
In-Reply-To: <3959832.c4ESAKX1ch@hactar>
On 08/22/16 at 12:25am, Thiago Jung Bauermann wrote:
> Am Montag, 22 August 2016, 11:17:45 schrieb Dave Young:
> > On 08/18/16 at 06:09pm, Thiago Jung Bauermann wrote:
> > > Hello Dave,
> > >
> > > Thanks for your review!
> > >
> > > [ Trimming down Cc: list a little to try to clear the "too many
> > > recipients">
> > > mailing list restriction. ]
> >
> > I also got "too many recipients".. Thanks for the trimming.
>
> Didn't work though. What is the maximum number of recipients?
I have no idea as well..
>
> > > Am Donnerstag, 18 August 2016, 17:03:30 schrieb Dave Young:
> > > > On 08/13/16 at 12:18am, Thiago Jung Bauermann wrote:
> > > > > Adds checksum argument to kexec_add_buffer specifying whether the
> > > > > given
> > > > > segment should be part of the checksum calculation.
> > > >
> > > > Since it is used with add buffer, could it be added to kbuf as a new
> > > > field?
> > >
> > > I was on the fence about adding it as a new argument to kexec_add_buffer
> > > or as a new field to struct kexec_buf. Both alternatives make sense to
> > > me. I implemented your suggestion in the patch below, what do you
> > > think?>
> > > > Like kbuf.no_checksum, default value is 0 that means checksum is
> > > > needed
> > > > if it is 1 then no need a checksum.
> > >
> > > It's an interesting idea and I implemented it that way, though in
> > > practice all current users of struct kexec_buf put it on the stack so
> > > the field needs to be initialized explicitly.
> >
> > No need to set it as false because it will be initialized to 0 by
> > default?
>
> As far as I know, variables on the stack are not initialized. Only global
> and static variables are.
But designated initializers will do it.
Thanks
Dave
next prev parent reply other threads:[~2016-08-22 3:37 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-13 3:18 [PATCH v2 0/6] kexec_file: Add buffer hand-over for the next kernel Thiago Jung Bauermann
2016-08-13 3:18 ` [PATCH v2 1/6] kexec_file: Add buffer hand-over support " Thiago Jung Bauermann
2016-08-13 3:18 ` [PATCH v2 2/6] powerpc: " Thiago Jung Bauermann
2016-08-22 3:21 ` Dave Young
2016-08-22 3:38 ` Thiago Jung Bauermann
2016-08-22 7:22 ` Dave Young
2016-08-22 22:21 ` Thiago Jung Bauermann
2016-08-13 3:18 ` [PATCH v2 3/6] kexec_file: Allow skipping checksum calculation for some segments Thiago Jung Bauermann
2016-08-18 9:03 ` Dave Young
2016-08-18 21:09 ` Thiago Jung Bauermann
2016-08-22 3:17 ` Dave Young
2016-08-22 3:25 ` Thiago Jung Bauermann
2016-08-22 3:36 ` Dave Young [this message]
2016-08-22 3:45 ` Thiago Jung Bauermann
2016-08-22 22:12 ` Thiago Jung Bauermann
2016-08-13 3:18 ` [PATCH v2 4/6] kexec_file: Add mechanism to update kexec segments Thiago Jung Bauermann
2016-08-15 22:27 ` Andrew Morton
2016-08-16 17:00 ` Thiago Jung Bauermann
2016-08-13 3:18 ` [PATCH v2 5/6] kexec: Share logic to copy segment page contents Thiago Jung Bauermann
2016-08-13 3:18 ` [PATCH v2 6/6] IMA: Demonstration code for kexec buffer passing Thiago Jung Bauermann
2016-08-17 2:52 ` [PATCH v2 0/6] kexec_file: Add buffer hand-over for the next kernel Dave Young
2016-08-17 4:58 ` Thiago Jung Bauermann
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