Messages in this thread | | | From | Cody P Schafer <> | Subject | [PATCH 0/3] mm: fixup changers of per cpu pageset's ->high and ->batch | Date | Fri, 5 Apr 2013 13:33:47 -0700 |
| |
In one case while modifying the ->high and ->batch fields of per cpu pagesets we're unneededly using stop_machine() (patches 1 & 2), and in another we don't have any syncronization at all (patch 3).
This patchset fixes both of them.
Note that it results in a change to the behavior of zone_pcp_update(), which is used by memory_hotplug. I _think_ that I've diserned (and preserved) the essential behavior (changing ->high and ->batch), and only eliminated unneeded actions (draining the per cpu pages), but this may not be the case.
-- mm/page_alloc.c | 63 +++++++++++++++++++++++++++------------------------------ 1 file changed, 30 insertions(+), 33 deletions(-)
| |