On Sun, Jun 27, 2010 at 09:32:07PM +0900, FUJITA Tomonori wrote: > On Sun, 27 Jun 2010 13:07:12 +0200 > Christoph Hellwig <hch@xxxxxx> wrote: > > > > How about this? > > > > As I tried to explain before this utterly confuses the I/O completion > > path. With the patch applied even a simple mkfs.xfs that issues discard > > just hangs. > > Wired. I just tried mkfs.xfs against scsi_debug with my block patches > (I saw one discard command). Seemed that it worked fine. Doesn't work for me against either a real SSD or WRITE SAME support in qemu. But I think I didn't actually have your barrier patches applied, so I'll try again with a clean tree. -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
