tree a023ff72d6daafff77cf0086abeb37f8e8d4a991
parent ed0b56209fe79a1309653d4b03f5c3147f580f6b
author Yunlei He <heyunlei@huawei.com> 1482378384 +0800
committer Jaegeuk Kim <jaegeuk@kernel.org> 1485661561 +0900

f2fs: fix a missing discard prefree segments

If userspace issue a fstrim with a range not involve prefree segments,
it will reuse these segments without discard. This patch fix it.

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