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

[David Rientjes]

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>

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