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