On 03/05/2010 08:32 PM, Alasdair G Kergon wrote: > On Mon, Mar 01, 2010 at 09:27:17AM +0100, Peter Rajnoha wrote: >> diff -purN linux-2.6.33-rc8.orig/drivers/md/dm-ioctl.c linux-2.6.33-rc8/drivers/md/dm-ioctl.c > >> @@ -736,10 +738,10 @@ static int dev_remove(struct dm_ioctl *p > >> dm_put(md); >> - param->data_size = 0; >> return 0; > > Why is that line removed? That's because of the copy_to_user in the outer ctl_ioctl fn so it copies back the result (with the new flag). We had nothing in return before... Peter -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel