On Sun, 11 Mar 2012 18:36:16 +0400
Konstantin Khlebnikov [off-list ref] wrote:

This patch moves lru checks from __isolate_lru_page() to its callers.

They aren't required on non-lumpy reclaim: all pages are came from right lru.
Pages isolation on memory compaction should skip only unevictable pages.
Thus we need to check page lru only on pages isolation for lumpy-reclaim.

Plus this patch kills mem_cgroup_lru_del() and uses mem_cgroup_lru_del_list()
instead, because now we already have lru list index.

Signed-off-by: Konstantin Khlebnikov <redacted>

add/remove: 0/1 grow/shrink: 2/1 up/down: 101/-164 (-63)
function                                     old     new   delta
static.isolate_lru_pages                    1018    1103     +85
compact_zone                                2230    2246     +16
mem_cgroup_lru_del                            65       -     -65
__isolate_lru_page                           287     188     -99

Reviewed-by: KAMEZAWA Hiroyuki <redacted>


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