On Fri, Nov 11, 2011 at 10:39 PM, Konstantin Khlebnikov
[off-list ref] wrote:

This patch adds helper free_hot_cold_page_list() to free list of 0-order pages.
It frees pages directly from the list without temporary page-vector.
It also calls trace_mm_pagevec_free() to simulate pagevec_free() behaviour.

bloat-o-meter:

add/remove: 1/1 grow/shrink: 1/3 up/down: 267/-295 (-28)
function                                     old     new   delta
free_hot_cold_page_list                        -     264    +264
get_page_from_freelist                      2129    2132      +3
__pagevec_free                               243     239      -4
split_free_page                              380     373      -7
release_pages                                606     510     -96
free_page_list                               188       -    -188

v2: Remove list reinititialization.
v3: Always free pages in reverse order.
   The most recently added struct page, the most likely to be hot.

Signed-off-by: Konstantin Khlebnikov <redacted>

Reviewed-by: Minchan Kim <redacted>

-- 
Kind regards,
Minchan Kim
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