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Date: Sat, 23 Dec 2023 09:44:29 +0100
From: Greg KH <gregkh@linuxfoundation.org>
To: Anthony Brennan <a2brenna@hatguy.io>
Cc: stable@vger.kernel.org
Subject: Re: [PATCH v2] netfs: Fix missing xas_retry() calls in xarray
 iteration
Message-ID: <2023122338-cape-deplored-05a8@gregkh>
References: <20231222013229.GA1202@hatguy.io>
 <2023122200-outsell-renewal-525d@gregkh>
 <20231222195152.GB8982@hatguy.io>
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In-Reply-To: <20231222195152.GB8982@hatguy.io>

On Fri, Dec 22, 2023 at 02:51:52PM -0500, Anthony Brennan wrote:
> On Fri, Dec 22, 2023 at 07:26:23AM +0100, Greg KH wrote:
> > On Thu, Dec 21, 2023 at 08:32:29PM -0500, Anthony Brennan wrote:
> > > To be applied to linux-5.15.y.
> > > 
> > > commit 59d0d52c30d4991ac4b329f049cc37118e00f5b0 upstream
> > 
> > That is not this commit at all :(
> > 
> 
> Thank you for your time.
> 
> >From what I can tell, the upstream commit merged by Linus includes two
> unrelated sets of changes: handling xas_retry, and fixes to "dodgy
> maths".  I discarded the fixes to dodgy maths for two reasons, first the
> commit log says they solve a theoretical potential problem and the
> guidelines for submissions to the stable kernel say to avoid such
> patches, and second, I lack the expertise to be confident those fixes
> are correct when working with pages and not folios.
> 
> Unsure what I should have done here.

Submit a real patch for the normal tree and then we can backport the
same commit id to a stable tree.  You can't backport a merge commit as
obviously that doesn't make sense in an older tree.

thanks,

greg k-h