This is the patchset to support MD discard, which I refresh against latest kernel. It's pretty straightforward for raid linear/0/1/10. The raid456 discard support is tricky, please see the log in the patches for details. Previously when I posted the patches out, people complain SATA SSD discard request merge error. Now a patch to disable discard request merge is in Jens's tree. We don't have this issue any more. -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html