On Sat, Jan 10, 2015 at 01:01:19AM +0530, Pranay Srivastava wrote: > It's not the mount. If you see mount_bdev it checks for this and uses > the existing super block from the first mount > for all subsequent mounts of that block device. > > When block devices differ, as in with 2 loop devices they have > different bdev and that's why it doesn't work with 2 > loop devices. What Lukas is suggesting is for mount(8) to spot an existing loop device with the desired backing store and reuse it, rather than try and set the new one up. That's where -o loop is handled - it's gone before mount(2) might see it. The problem is in races... -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html