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

[Hannes Reinecke]

On 09/29/2016 02:39 AM, 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.
> 
> Signed-off-by: Darrick J. Wong <darrick.wong at oracle.com>
> Reviewed-by: Christoph Hellwig <hch at lst.de>
> Reviewed-by: Martin K. Petersen <martin.petersen at oracle.com>
> ---
>  block/ioctl.c |   18 ++++++++++++------
>  1 file changed, 12 insertions(+), 6 deletions(-)
> 
Reviewed-by: Hannes Reinecke <hare at suse.com>

Cheers,

Hannes
-- 
Dr. Hannes Reinecke		      zSeries & Storage
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