From: Andrew Morton <akpm@linux-foundation.org>
To: Valentin Schneider <vschneid@redhat.com>
Cc: Baoquan He <bhe@redhat.com>,
kexec@lists.infradead.org, linux-rt-users@vger.kernel.org,
linux-kernel@vger.kernel.org,
Eric Biederman <ebiederm@xmission.com>,
Arnd Bergmann <arnd@arndb.de>, Petr Mladek <pmladek@suse.com>,
Miaohe Lin <linmiaohe@huawei.com>,
Thomas Gleixner <tglx@linutronix.de>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
Juri Lelli <jlelli@redhat.com>,
"Luis Claudio R. Goncalves" <lgoncalv@redhat.com>
Subject: Re: [PATCH v4 0/2] kexec, panic: Making crash_kexec() NMI safe
Date: Wed, 13 Jul 2022 10:39:33 -0700 [thread overview]
Message-ID: <20220713103933.e7510daa1c1f6ccde32f4d42@linux-foundation.org> (raw)
In-Reply-To: <xhsmh35f68tz4.mognet@vschneid.remote.csb>
On Tue, 12 Jul 2022 12:13:03 +0100 Valentin Schneider <vschneid@redhat.com> wrote:
> On 12/07/22 10:47, Baoquan He wrote:
> > Hi,
> >
> > On 06/30/22 at 11:32pm, Valentin Schneider wrote:
> >> Hi folks,
> >>
> >> Here's ~v3~ v4 where we now completely get rid of kexec_mutex.
> >>
> >> o Patch 1 makes sure all kexec_mutex acquisitions are trylocks. This prevents
> >> having to add any while(atomic_cmpxchg()) loops which I'd really hate to see
> >> here. If that can't be done then I think we're better off with the combined
> >> mutex+atomic var approach.
> >> o Patch 2 does the mutex -> atomic var switch.
> >
> > This series looks good, has it been taken into any tree?
> >
>
> I don't think so, briefly poked around git and haven't seen it anywhere.
I'll stash it away for consideration after -rc1.
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next prev parent reply other threads:[~2022-07-13 17:39 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-30 22:32 [PATCH v4 0/2] kexec, panic: Making crash_kexec() NMI safe Valentin Schneider
2022-06-30 22:32 ` [PATCH v4 1/2] kexec: Turn all kexec_mutex acquisitions into trylocks Valentin Schneider
2022-06-30 22:32 ` [PATCH v4 2/2] panic, kexec: Make __crash_kexec() NMI safe Valentin Schneider
2022-07-12 2:47 ` [PATCH v4 0/2] kexec, panic: Making crash_kexec() " Baoquan He
2022-07-12 11:13 ` Valentin Schneider
2022-07-13 17:39 ` Andrew Morton [this message]
2022-10-03 13:20 ` Valentin Schneider
2022-10-03 18:41 ` Andrew Morton
2022-07-14 11:32 ` Petr Mladek
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