f2fs: call SetPageUptodate if needed
SetPageUptodate() issues memory barrier, resulting in performance degrdation.
Let's avoid that.
Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
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SetPageUptodate() issues memory barrier, resulting in performance degrdation.
Let's avoid that.
Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>