diff options
| author | zhong jiang <zhongjiang@huawei.com> | 2016-10-07 17:01:19 -0700 |
|---|---|---|
| committer | Mister Oyster <oysterized@gmail.com> | 2017-04-11 10:57:20 +0200 |
| commit | f52c71886fe9f979a66962a0ac5af9cb6676cdd3 (patch) | |
| tree | fbef34526f4cf4611c35807dabe6533083051d59 /include/uapi/linux/sysctl.h | |
| parent | f80d47a2d37c316f515e897cba69b616300b57a3 (diff) | |
mm,ksm: add __GFP_HIGH to the allocation in alloc_stable_node()
According to Hugh's suggestion, alloc_stable_node() with GFP_KERNEL can
in rare cases cause a hung task warning.
At present, if alloc_stable_node() allocation fails, two break_cows may
want to allocate a couple of pages, and the issue will come up when free
memory is under pressure.
We fix it by adding __GFP_HIGH to GFP, to grant access to memory
reserves, increasing the likelihood of allocation success.
[akpm@linux-foundation.org: tweak comment]
Link: http://lkml.kernel.org/r/1474354484-58233-1-git-send-email-zhongjiang@huawei.com
Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Suggested-by: Hugh Dickins <hughd@google.com>
Acked-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/uapi/linux/sysctl.h')
0 files changed, 0 insertions, 0 deletions