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| author | Zhao Lei <zhaolei@cn.fujitsu.com> | 2015-12-01 11:39:40 +0100 |
|---|---|---|
| committer | Chris Mason <clm@fb.com> | 2016-01-20 16:22:14 +0100 |
| commit | e1746e8381cd2af421f75557b5cae3604fc18b35 (patch) | |
| tree | fb140445ed587ff5c0bbdbea6e06fa659b106c92 /fs/btrfs/raid56.c | |
| parent | btrfs: merge functions for wait snapshot creation (diff) | |
| download | linux-e1746e8381cd2af421f75557b5cae3604fc18b35.tar.xz linux-e1746e8381cd2af421f75557b5cae3604fc18b35.zip | |
btrfs: Fix no_space in write and rm loop
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 bdced438acd8 ("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: Zhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>
Diffstat (limited to 'fs/btrfs/raid56.c')
0 files changed, 0 insertions, 0 deletions