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Date:   Mon, 5 Aug 2019 22:18:47 +0200
From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     Jari Ruusu <jariruusu@users.sourceforge.net>
Cc:     linux-kernel@vger.kernel.org, torvalds@linux-foundation.org,
        akpm@linux-foundation.org, linux@roeck-us.net, shuah@kernel.org,
        patches@kernelci.org, ben.hutchings@codethink.co.uk,
        lkft-triage@lists.linaro.org, stable@vger.kernel.org,
        Peter Zijlstra <peterz@infradead.org>
Subject: Re: [PATCH 4.9 00/42] 4.9.188-stable review
Message-ID: <20190805201847.GA31714@kroah.com>
References: <20190805124924.788666484@linuxfoundation.org>
 <5D488D55.B84FC098@users.sourceforge.net>
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On Mon, Aug 05, 2019 at 11:11:01PM +0300, Jari Ruusu wrote:
> Greg Kroah-Hartman wrote:
> > This is the start of the stable review cycle for the 4.9.188 release.
> 
> Peter Zijlstra's "x86/atomic: Fix smp_mb__{before,after}_atomic()"
> upstream commit 69d927bba39517d0980462efc051875b7f4db185 seems to
> be missing/lost from 4.9 and older stable kernels.
> 
> That patch has 10 hunks, first one of those does not apply cleanly to
> 4.9 kernel because it attempts to modify Documentation/atomic_t.txt
> file which does not exist in older kernels. Other 9 hunks apply with
> small offsets and fuzz, but modifications find their correct places anyway.
> Those other 9 hunks are the important ones, first hunk can be ignored.
> 
> Greg,
> Please take Peter Zijlstra's original patch and "force" apply it like this
> to 4.9 kernels:
> 
>   patch -p1 -f <ORIGINAL.patch
> 
> and for 4.4 kernels like this:
> 
>   cat ORIGINAL.patch | sed -e 's/__smp_mb__/smp_mb__/' | patch -p1 -f -l

Can you send properly backported and tested patches?

thanks,

greg k-h