Re: [PATCH] watchdog: hpwdt: Remove spinlock acquire and BIOS calls from NMI context
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- Subject: Re: [PATCH] watchdog: hpwdt: Remove spinlock acquire and BIOS calls from NMI context
- From: Ingo Molnar <mingo@xxxxxxxxxx>
- Date: Thu, 15 Feb 2018 00:17:04 +0100
- Cc: Borislav Petkov <bp@xxxxxxxxx>, Tim Chen <tim.c.chen@xxxxxxxxxxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, Dave Hansen <dave@xxxxxxxx>, hpa@xxxxxxxxx, tglx@xxxxxxxxxxxxx, torvalds@xxxxxxxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, dwmw@xxxxxxxxxxxx, linux-tip-commits@xxxxxxxxxxxxxxx, Arjan van de Ven <arjan@xxxxxxxxxxxxx>, linux-watchdog@xxxxxxxxxxxxxxx
- In-reply-to: <20180214181342.GA27600@anatevka.americas.hpqcorp.net>
- References: <1518362359-1005-1-git-send-email-dwmw@amazon.co.uk> <tip-670c3e8da87fa4046a55077b1409cf250865a203@git.kernel.org> <20180212102211.cdrrqqd4hdw7xu5y@gmail.com> <a85c28b8-1255-3264-bb4a-89e85e3c6009@sr71.net> <20180212165835.GO25181@hirez.programming.kicks-ass.net> <20180213075540.3lkikkpgjoe6ocjk@gmail.com> <5c3ba123-abbe-f153-7b75-a89d31d25c72@linux.intel.com> <20180214093159.mdzfupne547bi5qx@gmail.com> <20180214094404.GA18349@pd.tnic> <20180214181342.GA27600@anatevka.americas.hpqcorp.net>
- User-agent: NeoMutt/20170609 (1.8.3)
* Jerry Hoemann <jerry.hoemann@xxxxxxx> wrote:
>
> Ingo,
>
> I have a patch set under review that brings hpwdt into compliance
> with the watchdog core.
>
> One of the changes removes the callback into firmware in hpwdt_pretimeout
> and its associated spinlock.
>
> https://lkml.org/lkml/2018/2/12/30
drivers/watchdog/hpwdt.c | 490 +----------------------------------------------
1 file changed, 8 insertions(+), 482 deletions(-)
Very nice, and this should solve all the NMI handling complications!
> I will add you to the CC list of the next version of the set.
Thanks!
Ingo
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