Re: [PATCH 1/3] block: invalidate the page cache when issuing BLKZEROOUT.

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On Fri, Mar 04, 2016 at 04:56:03PM -0800, Darrick J. Wong wrote:
> Invalidate the page cache (as a regular O_DIRECT write would do) to avoid
> returning stale cache contents at a later time.
> 
> v5: Refactor the 4.4 refactoring of the ioctl code into separate functions.
> Split the page invalidation and the new ioctl into separate patches.
> 
> Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>

Didn't I review this already?  If not:

Reviewed-by: Christoph Hellwig <hch@xxxxxx>
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