f2fs crypto: zero next free dnode block
authorChao Yu <chao2.yu@samsung.com>
Mon, 18 May 2015 10:00:06 +0000 (18:00 +0800)
committerJaegeuk Kim <jaegeuk@kernel.org>
Mon, 1 Jun 2015 23:21:00 +0000 (16:21 -0700)
Now page cache of meta inode is used by garbage collection for encrypted page,
it may contain random data, so we should zero it before issuing discard.

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

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