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| author |   Li Zhong <zhong@linux.vnet.ibm.com> | 2016-09-28 15:22:38 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2016-09-28 16:19:02 -0700 |
| commit | 231e97e2b8ec9a1556ced5d8a89cda03a480b179 (patch) | |
| tree | 762b3c2cb8698d59ea3a4059b509895afb2f0fe6 /kernel/cgroup.c | |
| parent | scripts/recordmcount.c: account for .softirqentry.text (diff) | |
| download | linux-dev-231e97e2b8ec9a1556ced5d8a89cda03a480b179.tar.xz linux-dev-231e97e2b8ec9a1556ced5d8a89cda03a480b179.zip | |
mem-hotplug: use nodes that contain memory as mask in new_node_page()
9bb627be47a5 ("mem-hotplug: don't clear the only node in new_node_page()")
prevents allocating from an empty nodemask, but as David points out, it is
still wrong. As node_online_map may include memoryless nodes, only
allocating from these nodes is meaningless.
This patch uses node_states[N_MEMORY] mask to prevent the above case.
Fixes: 9bb627be47a5 ("mem-hotplug: don't clear the only node in new_node_page()")
Fixes: 394e31d2ceb4 ("mem-hotplug: alloc new page from a nearest neighbor node when mem-offline")
Link: http://lkml.kernel.org/r/1474447117.28370.6.camel@TP420
Signed-off-by: Li Zhong <zhong@linux.vnet.ibm.com>
Suggested-by: David Rientjes <rientjes@google.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: John Allen <jallen@linux.vnet.ibm.com>
Cc: Xishi Qiu <qiuxishi@huawei.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/cgroup.c')
0 files changed, 0 insertions, 0 deletions