>>>>> "Neil" == Neil Brown <neilb@xxxxxxx> writes: Neil> But what if we subsequently add a different device to that array Neil> which uses a different protection format. Would we be able to Neil> tell the filesystem that integrity protection isn't available Neil> any more? Or can we detect if the filesystem is using integrity Neil> protection, and reject the new device if it doesn't match? Generally the filesystem will look at the block device's integrity profile every time it prepares an I/O. So if we add a subdevice and detect a mismatch the mddev integrity profile should be removed. Neil> In either case, some extra handling is needed in Neil> bind_rdev_to_array. This code has been sitting in my patch queue for several months waiting for the core of the integrity stuff to go in. So I'm a bit fuzzy on the details. I'll take a look... -- Martin K. Petersen Oracle Linux Engineering -- 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
