On 02/06/17 02:10, Christoph Hellwig wrote: > Write Same can return an error asynchronously if it turns out the > underlying SCSI device does not support Write Same, which makes a > proper fallback to other methods in __blkdev_issue_zeroout impossible. > Thus only issue a Write Same from blkdev_issue_zeroout an don't try it > at all from __blkdev_issue_zeroout as a non-invasive workaround. > > Signed-off-by: Christoph Hellwig <h...@lst.de> > Reported-by: Junichi Nomura <j-nom...@ce.jp.nec.com> > Fixes: e73c23ff ("block: add async variant of blkdev_issue_zeroout")
Thank you. I tested your patch and confirmed it works for me. -- Jun'ichi Nomura, NEC Corporation / NEC Solution Innovators, Ltd.