Re: [PATCH] mm, migrate: count pages failing all retries in vmstat and tracepoint

[Vlastimil Babka]

On 27.8.2015 23:02, David Rientjes wrote:
> On Thu, 27 Aug 2015, Vlastimil Babka wrote:
> 
>> Migration tries up to 10 times to migrate pages that return -EAGAIN until it
>> gives up. If some pages fail all retries, they are counted towards the number
>> of failed pages that migrate_pages() returns. They should also be counted in
>> the /proc/vmstat pgmigrate_fail and in the mm_migrate_pages tracepoint.
>>
>> Signed-off-by: Vlastimil Babka <vbabka@xxxxxxx>
> 
> Acked-by: David Rientjes <rientjes@xxxxxxxxxx>

Thanks.

> I assume nothing else other than stats and tracepoints are affected by 
> this and this isn't a critical bugfix :)

Yep, no stable needed :)

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