Messages in this thread | | | From | Vlastimil Babka <> | Subject | [PATCH 0/3] mainline and mmotm compaction fixes | Date | Mon, 25 Apr 2016 15:34:26 +0200 |
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This was initially sent in responses to Hugh's woes [1] but looks like the timing was unfortunate for the patches to be picked. So here's a consolidated resent. Patch 1 is for an older bug that Hugh found when dealing with the mmotm bugs, Patches 2 and 3 are mmotm fixes.
This doesn't address the problem 1) in Hugh's mail, which Michal Hocko also hit recently and reminded me to check these patches' status:
> 1. Fix crash in release_pages() from compact_zone() from kcompactd_do_work(): > kcompactd needs to INIT_LIST_HEAD on the new freepages_held list.
This one should be addressed by dropping the following from mmotm from now:
mm-compaction-direct-freepage-allocation-for-async-direct-compaction.patch
As there were objections from Joonsoo and Mel that I would like to try addressing before posting again.
[1] http://marc.info/?i=alpine.LSU.2.11.1604120005350.1832%40eggly.anvils
Hugh Dickins (2): mm, cma: prevent nr_isolated_* counters from going negative mm, compaction: prevent nr_isolated_* from going negative
Vlastimil Babka (1): mm, compaction: fix crash in get_pfnblock_flags_mask() from isolate_freepages():
mm/compaction.c | 21 +++++++-------------- 1 file changed, 7 insertions(+), 14 deletions(-)
-- 2.8.1
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