On Thu, Mar 10, 2016 at 04:04:35PM -0800, Yauhen Kharuzhy wrote: > When 'btrfs device scan' command is invoked, it scans all devices, > check them for btrfs superblock and add devices with btrfs to a list. > > Next, each device from the list is passed to kernel where it is handled > in the btrfs_scan_one_device() function. This function can, for example, > return -EBUSY when device contains superblock matched to existing and > mounted filesystem (if this device was pulled out from RAID and > connected again after some time). > > btrfs tool stops device scan if any device has been failed to add, so > other existing devices with (possibly) valid FS will never be reached. > > Fix this by remove stopping at any failure in the > btrfs_register_all_devices(), > just return error count. btrfs_scan_one_device() reports any kind of > error already. > > Signed-off-by: Yauhen Kharuzhy <yauhen.kharu...@zavadatar.com>
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