Patch "arm: add support for TIF_NOTIFY_SIGNAL" has been added to the 5.10-stable tree

[Jens Axboe]

On 1/3/23 8:54 AM, Greg KH wrote:
> On Tue, Jan 03, 2023 at 10:37:22AM +0000, Russell King (Oracle) wrote:
>> Hi Greg,
>>
>> Probably not a good idea to pick this up just yet - there's been a
>> report of a performance regression due to this patch.
> 
> There is?  It's been in the tree since 5.11 which is quite old.  So I
> think we can keep it for now and if a fix is found I will be glad to
> backport it to 5.10 as well.

Just waiting on testing, came in the other day. Here's the thread:

https://lore.kernel.org/lkml/7ecb8f3c-2aeb-a905-0d4a-aa768b9649b5@huawei.com/

-- 
Jens Axboe