From: "gregkh@linuxfoundation.org" <gregkh@linuxfoundation.org>
To: Justin He <Justin.He@arm.com>
Cc: "Jonathan.Cameron@Huawei.com" <Jonathan.Cameron@huawei.com>,
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Subject: Re: FAILED: patch "[PATCH] mm/memory_hotplug: fix unpaired mem_hotplug_begin/done" failed to apply to 4.19-stable tree
Date: Thu, 20 Aug 2020 10:02:18 +0200 [thread overview]
Message-ID: <20200820080218.GA4049659@kroah.com> (raw)
In-Reply-To: <AM6PR08MB4069874E06B127B704F0D683F75A0@AM6PR08MB4069.eurprd08.prod.outlook.com>
On Thu, Aug 20, 2020 at 02:27:40AM +0000, Justin He wrote:
> Hi Greg,
> If anybody wants to backport it to stable tree, there are 2 pre-condition for
> this commit ("[PATCH] mm/memory_hotplug: fix unpaired mem_hotplug_begin/done")
>
> 1. eca499ab3 ("mm/hotplug: make remove_memory() interface usable") applied
> in v5.2, it disabled the BUG() when check_memblock_offlined_cb() failed.
> 2. f1037ec0c ("mm/memory_hotplug: fix remove_memory() lockdep splat")
> in v5.5, it introduced the unpair but depends on eca499ab3
>
> I checked https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/tree/mm/memory_hotplug.c?h=linux-4.19.y#n1913.
> Looks like stable tree v4.19 hasn't applied eca499ab3 but applied f1037ec0c.
> Hence I don't think v4.19 needs this patch.
Thanks, I'll just leave this out of 4.19.y for now then.
greg k-h
prev parent reply other threads:[~2020-08-20 8:01 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-19 12:28 FAILED: patch "[PATCH] mm/memory_hotplug: fix unpaired mem_hotplug_begin/done" failed to apply to 4.19-stable tree gregkh
2020-08-20 2:27 ` Justin He
2020-08-20 8:02 ` gregkh [this message]
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