f2fs: fix to migrate blocks correctly during defragment

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During defragment, we missed to trigger fragmented blocks migration
for below condition:

In defragment region:
- total number of valid blocks is smaller than 512;
- the tail part of the region are all holes;

In addtion, return zero to user via range->len if there is no
fragmented blocks.

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

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Chao Yu 2019-07-29 23:02:29 +08:00 • committed by Jaegeuk Kim

parent 33ac18a15c

commit d3a1a0e1bf

1 changed files with 6 additions and 4 deletions

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fs/f2fs/file.c

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