From: Nicholas Piggin <npiggin@gmail.com>
To: Ganesh Goudar <ganeshgr@linux.ibm.com>,
linuxppc-dev@lists.ozlabs.org, mpe@ellerman.id.au
Cc: aneesh.kumar@linux.ibm.com, santosh@fossix.org,
arbab@linux.ibm.com, mahesh@linux.vnet.ibm.com
Subject: Re: [PATCH] powerpc/mce: Add MCE notification chain
Date: Fri, 03 Apr 2020 12:08:17 +1000 [thread overview]
Message-ID: <1585879413.ubv3w8ta2y.astroid@bobo.none> (raw)
In-Reply-To: <20200330071219.12284-1-ganeshgr@linux.ibm.com>
Ganesh Goudar's on March 30, 2020 5:12 pm:
> From: Santosh S <santosh@fossix.org>
>
> Introduce notification chain which lets know about uncorrected memory
> errors(UE). This would help prospective users in pmem or nvdimm subsystem
> to track bad blocks for better handling of persistent memory allocations.
>
> Signed-off-by: Santosh S <santosh@fossix.org>
> Signed-off-by: Ganesh Goudar <ganeshgr@linux.ibm.com>
Do you have any such users yet? It would be good to refer to an example
user and give a brief description of what it does in its notifier.
> @@ -263,6 +277,7 @@ static void machine_process_ue_event(struct work_struct *work)
> while (__this_cpu_read(mce_ue_count) > 0) {
> index = __this_cpu_read(mce_ue_count) - 1;
> evt = this_cpu_ptr(&mce_ue_event_queue[index]);
> + blocking_notifier_call_chain(&mce_notifier_list, 0, evt);
Can we really use a blocking notifier here? I'm not sure that we can.
Thanks,
Nick
next prev parent reply other threads:[~2020-04-03 2:10 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-30 7:12 [PATCH] powerpc/mce: Add MCE notification chain Ganesh Goudar
2020-04-03 2:08 ` Nicholas Piggin [this message]
2020-04-04 13:05 ` Ganesh
2020-04-06 2:17 ` Nicholas Piggin
2020-04-06 17:17 ` Mahesh J Salgaonkar
2020-05-04 6:39 ` Ganesh
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