linux-kernel - Re: [PATCH] mm: hide incomplete nr_indirectly

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Message-ID: <20181206111328.GP19891@kroah.com>
Date:   Thu, 6 Dec 2018 12:13:28 +0100
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Vlastimil Babka <vbabka@...e.cz>
Cc:     Roman Gushchin <guro@...com>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>,
        Yongqin Liu <yongqin.liu@...aro.org>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Kernel Team <Kernel-team@...com>,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH] mm: hide incomplete nr_indirectly_reclaimable in
 /proc/zoneinfo

On Thu, Nov 29, 2018 at 03:54:10PM +0100, Vlastimil Babka wrote:
> On 11/29/18 1:52 PM, Greg KH wrote:
> > On Tue, Oct 30, 2018 at 05:48:25PM +0000, Roman Gushchin wrote:
> >> BTW, in 4.19+ the counter has been renamed and exported by
> >> the commit b29940c1abd7 ("mm: rename and change semantics of
> >> nr_indirectly_reclaimable_bytes"), so there is no such a problem
> >> anymore.
> >>
> >> Cc: <stable@...r.kernel.org> # 4.14.x-4.18.x
> >> Fixes: 7aaf77272358 ("mm: don't show nr_indirectly_reclaimable in /proc/vmstat")
> 
> ...
> 
> > I do not see this patch in Linus's tree, do you?
> > 
> > If not, what am I supposed to do with this?
> 
> Yeah it wasn't probably clear enough, but this is stable-only patch, as
> upstream avoided the (then-unknown) problem in 4.19 as part of a far
> more intrusive series. As I've said in my previous reply to this thread,
> I don't think we can backport that series to stable (e.g. it introduces
> a set of new kmalloc caches that will suddenly appear in /proc/slabinfo)
> so I think this is a case for exception from the stable rules.

Ok, now queued up, thanks.

greg k-h