Re: [dm-devel] [PATCH 01/27] target: remove an incorrect unmap zeroes data deduction
Christoph, > For block devices the target code implements UNMAP as calls to > blkdev_issue_discard, which does not guarantee zeroing just because > Write Zeroes is supported. > > Note that this does not affect the file backed path which uses > fallocate to punch holes. Reviewed-by: Martin K. Petersen -- Martin K. Petersen Oracle Linux Engineering ___ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization
Re: [dm-devel] [PATCH 01/27] target: remove an incorrect unmap zeroes data deduction
Christoph,
> For block devices the target code implements UNMAP as calls to
> blkdev_issue_discard, which does not guarantee zeroing just because
> Write Zeroes is supported.
>
> Note that this does not affect the file backed path which uses
> fallocate to punch holes.
>
> Fixes: 2237498f0b5c ("target/iblock: Convert WRITE_SAME to
> blkdev_issue_zeroout")
> Signed-off-by: Christoph Hellwig
--
Martin K. Petersen Oracle Linux Engineering
___
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization
