Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Subject: Re: mmotm 2021-07-23-15-03 uploaded (mm/memory_hotplug.c)
To:     Randy Dunlap <rdunlap@infradead.org>, akpm@linux-foundation.org,
        broonie@kernel.org, linux-fsdevel@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-mm@kvack.org,
        linux-next@vger.kernel.org, mhocko@suse.cz,
        mm-commits@vger.kernel.org, sfr@canb.auug.org.au
References: <20210723220400.w5iKInKaC%akpm@linux-foundation.org>
 <5966f6a2-bdba-3a54-c6cb-d21aaeb8f534@infradead.org>
From:   David Hildenbrand <david@redhat.com>
Organization: Red Hat
Message-ID: <5394da5e-29f0-ff7d-e614-e2805400a8bb@redhat.com>
Date:   Mon, 26 Jul 2021 09:14:25 +0200
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101
 Thunderbird/78.11.0
MIME-Version: 1.0
In-Reply-To: <5966f6a2-bdba-3a54-c6cb-d21aaeb8f534@infradead.org>
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Language: en-US
Content-Transfer-Encoding: 8bit
Precedence: bulk

On 24.07.21 20:49, Randy Dunlap wrote:
> On 7/23/21 3:04 PM, akpm@linux-foundation.org wrote:
>> The mm-of-the-moment snapshot 2021-07-23-15-03 has been uploaded to
>>
>>     https://www.ozlabs.org/~akpm/mmotm/
>>
>> mmotm-readme.txt says
>>
>> README for mm-of-the-moment:
>>
>> https://www.ozlabs.org/~akpm/mmotm/
>>
>> This is a snapshot of my -mm patch queue.  Uploaded at random hopefully
>> more than once a week.
>>
>> You will need quilt to apply these patches to the latest Linus release (5.x
>> or 5.x-rcY).  The series file is in broken-out.tar.gz and is duplicated in
>> https://ozlabs.org/~akpm/mmotm/series
>>
>> The file broken-out.tar.gz contains two datestamp files: .DATE and
>> .DATE-yyyy-mm-dd-hh-mm-ss.  Both contain the string yyyy-mm-dd-hh-mm-ss,
>> followed by the base kernel version against which this patch series is to
>> be applied.
>>
> 
> on x86_64:
> # CONFIG_CMA is not set
> 
> mm-memory_hotplug-memory-group-aware-auto-movable-online-policy.patch
> 
> 
> 
> ../mm/memory_hotplug.c: In function ‘auto_movable_stats_account_zone’:
> ../mm/memory_hotplug.c:748:33: error: ‘struct zone’ has no member named ‘cma_pages’; did you mean ‘managed_pages’?
>     stats->movable_pages += zone->cma_pages;
>                                   ^~~~~~~~~
>                                   managed_pages
> ../mm/memory_hotplug.c:750:38: error: ‘struct zone’ has no member named ‘cma_pages’; did you mean ‘managed_pages’?
>     stats->kernel_early_pages -= zone->cma_pages;
>                                        ^~~~~~~~~
>                                        managed_pages
> 
> 

Thanks Randy, the following on top should make it fly:

diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index bfdaa28eb86f..fa1a0afd32ba 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -741,13 +741,15 @@ static void auto_movable_stats_account_zone(struct auto_movable_stats *stats,
         if (zone_idx(zone) == ZONE_MOVABLE) {
                 stats->movable_pages += zone->present_pages;
         } else {
+               stats->kernel_early_pages += zone->present_early_pages;
+#ifdef CONFIG_CMA
                 /*
                  * CMA pages (never on hotplugged memory) behave like
                  * ZONE_MOVABLE.
                  */
                 stats->movable_pages += zone->cma_pages;
-               stats->kernel_early_pages += zone->present_early_pages;
                 stats->kernel_early_pages -= zone->cma_pages;
+#endif /* CONFIG_CMA */
         }
  }
  struct auto_movable_group_stats {


-- 
Thanks,

David / dhildenb