Patch 1/3 is a small cleanup suggested by Matthew Wilcox which doesn't affect scalability or performance; Patch 2/3 moves some code in free_pcppages_bulk() outside of zone->lock and has Mel Gorman's ack; Patch 3/3 uses prefetch in free_pcppages_bulk() outside of zone->lock to speedup page merging under zone->lock but Mel Gorman has some concerns. For details, please see their changelogs. v4: Address David Rientjes' comments to not update pcp->count in front of free_pcppages_bulk() in patch 1/3. Reword code comments in patch 2/3 as suggested by David Rientjes. v3: Added patch 1/3 to update pcp->count inside of free_pcppages_bulk(); Rebase to v4.16-rc2. v2 & v1: https://lkml.org/lkml/2018/1/23/879 Aaron Lu (3): mm/free_pcppages_bulk: update pcp->count inside mm/free_pcppages_bulk: do not hold lock when picking pages to free mm/free_pcppages_bulk: prefetch buddy while not holding lock mm/page_alloc.c | 62 +++++++++++++++++++++++++++++++++++++-------------------- 1 file changed, 40 insertions(+), 22 deletions(-) -- 2.14.3 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
