tree 43be985615141172792acb585d80bf6651cdc399
parent 689c94f03ae251181725fe853b4ffc870f05c7fe
author Johannes Weiner <hannes@cmpxchg.org> 1458079030 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1458086116 -0700

mm: workingset: separate shadow unpacking and refault calculation

Per-cgroup thrash detection will need to derive a live memcg from the
eviction cookie, and doing that inside unpack_shadow() will get nasty
with the reference handling spread over two functions.

In preparation, make unpack_shadow() clearly about extracting static
data, and let workingset_refault() do all the higher-level handling.

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Vladimir Davydov <vdavydov@virtuozzo.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>