We can scan for btrfs devices in a few ways. By default
libblkid is used for "device scan" and "filesystem show";
with the -m option only mounted filesystems are scanned,
and with -d we physically read every system device.
But there's no reason for the complexity of a descent through
/dev; /proc/partitions has every device known to the kernel, so
just use that when -d is specified.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
break;
switch (c) {
case 'd':
- where = BTRFS_SCAN_DEV;
+ where = BTRFS_SCAN_PROC;
all = 1;
break;
default:
break;
switch (c) {
case 'd':
- where = BTRFS_SCAN_DEV;
+ where = BTRFS_SCAN_PROC;
break;
case 'm':
where = BTRFS_SCAN_MOUNTED;
* right away
*/
if (type == BTRFS_ARG_BLKDEV) {
- if (where == BTRFS_SCAN_DEV) {
+ if (where == BTRFS_SCAN_PROC) {
/* we need to do this because
* legacy BTRFS_SCAN_DEV
* provides /dev/dm-x paths
}
}
- if (where == BTRFS_SCAN_DEV)
+ if (where == BTRFS_SCAN_PROC)
goto devs_only;
/* show mounted btrfs */