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由 Zhao Lei 提交于
I see no_space in v4.4-rc1 again in xfstests generic/102. It happened randomly in some node only. (one of 4 phy-node, and a kvm with non-virtio block driver) By bisect, we can found the first-bad is: commit bdced438 ("block: setup bi_phys_segments after splitting")' But above patch only triggered the bug by making bio operation faster(or slower). Main reason is in our space_allocating code, we need to commit page writeback before wait it complish, this patch fixed above bug. BTW, there is another reason for generic/102 fail, caused by disable default mixed-blockgroup, I'll fix it in xfstests. Signed-off-by: NZhao Lei <zhaolei@cn.fujitsu.com> Signed-off-by: NChris Mason <clm@fb.com>
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