On Mon, Apr 22, 2013 at 11:01:09AM -0500, Eric Sandeen wrote: > >> Maybe one for Arne to answer? Yeah, I don't see it in the manpage > >> or in userspace, so *shrug* where is the design? > > > > Scrub can be started on one device, cancel is just part of the command set. > > > > $ ./btrfs scrub cancel --help > > usage: btrfs scrub cancel <path>|<device> > > Cancel a running scrub > > Right, but device is different from devid, no? > > i.e. btrfs replace start can take a devid or a device, and checks for > if (is_numerical(srcdev)); this doesn't look implemented for > scrub cancel. I guess it could be.
Yeah, after further research, the 'scrub cancel' ioctl uses the device just to find the filesystem as if a path were given, and does not cancel scrub on that device. The ioctl does not take any user data so we'd have to do IOC_SCRUB_CANCEL_V2 in order to implement cancel-by-id (or delete the function if this is not a valid usecase, I don't know). david -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
