f2fs: keep migration IO order in LFS mode

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For non-migration IO, we will keep order of data/node blocks' submitting
as allocation sequence by sorting IOs in per log io_list list, but for
migration IO, it could be out-of-order.

In LFS mode, we should keep all IOs including migration IO be ordered,
so that this patch fixes to add an additional lock to keep submitting
order.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Yunlong Song <yunlong.song@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

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Chao Yu 2018-05-26 09:00:13 +08:00 • committed by Jaegeuk Kim

parent e5e5732d81

commit 107a805de8

4 changed files with 14 additions and 0 deletions

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2

fs/f2fs/f2fs.h

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6

fs/f2fs/gc.c

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5

fs/f2fs/segment.c

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1

fs/f2fs/super.c

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