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Subject[patch 0/8] page reclaim bits

I had these in my queue and on test machines for a while, but they got
deferred over and over, partly because of the kswapd issues. I hope
it's not too late for 3.8, they should be fairly straight forward.

#1 takes the anon workingset protection with plenty file cache from
global reclaim, which was just merged into 3.8, and generalizes it to
include memcg reclaim.

#2-#6 are get_scan_count() fixes and cleanups.

#7 fixes reclaim-for-compaction to work against zones, not lruvecs,
since that is what compaction works against. Practical impact only on
memcg setups, but confusing for everybody.

#8 puts ksm pages that are copied-on-swapin into their own separate


include/linux/swap.h | 2 +-
mm/ksm.c | 6 --
mm/memory.c | 5 +-
mm/vmscan.c | 268 +++++++++++++++++++++++++++----------------------
4 files changed, 152 insertions(+), 129 deletions(-)

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