f2fs: add a punch discard command function

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This patch add a function to punch discard command if one segment
reuse before discard. Split this segment from multi-segments discard
range, and discard the left bigger range.

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

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Yunlei He 2017-03-02 10:36:20 +08:00 • committed by Jaegeuk Kim

parent c81abe34fe

commit 3d6a650feb

1 changed files with 20 additions and 2 deletions

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fs/f2fs/segment.c

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