btrfs-progs: correct prompt of minimal num of devs for raid56
authorGui Hecheng <guihc.fnst@cn.fujitsu.com>
Thu, 10 Apr 2014 03:55:36 +0000 (11:55 +0800)
committerDavid Sterba <dsterba@suse.cz>
Fri, 11 Apr 2014 17:47:30 +0000 (19:47 +0200)
commit2873ae9bd815836a008336ed31056c5cd2a6036a
treed715d3e30b1ab61d0627384b70f0a51b2e5001fa
parentc17d0a73c11d7cdbdf1582408ec6d168876160ea
btrfs-progs: correct prompt of minimal num of devs for raid56

For btrfs,
Raid5 can't go below 2 devs, not 3;
Raid6 can't go below 3 devs, not 4.

Signed-off-by: Gui Hecheng <guihc.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
ioctl.h