Messages in this thread | | | From | Minchan Kim <> | Subject | [PATCH 0/3] memory-hotplug: handle page race between allocation and isolation | Date | Wed, 5 Sep 2012 16:25:59 +0900 |
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Memory hotplug has a subtle race problem so this patchset fixes the problem (Look at [3/3] for detail and please confirm the problem before review other patches in this series.)
[1/3] is just clean up and help for [2/3]. [2/3] keeps the migratetype information to freed page's index field and [3/3] uses the information. [3/3] fixes the race problem with [2/3]'s information.
After applying [2/3], migratetype argument in __free_one_page and free_one_page is redundant so we can remove it but I decide to not touch them because it increases code size about 50 byte.
Minchan Kim (3): mm: use get_page_migratetype instead of page_private mm: remain migratetype in freed page memory-hotplug: bug fix race between isolation and allocation
include/linux/mm.h | 12 ++++++++++++ mm/page_alloc.c | 16 ++++++++++------ mm/page_isolation.c | 7 +++++-- 3 files changed, 27 insertions(+), 8 deletions(-)
-- 1.7.9.5
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