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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>
This commit is contained in:
Gui Hecheng 2014-04-10 11:55:36 +08:00 committed by David Sterba
parent c17d0a73c1
commit 2873ae9bd8
1 changed files with 2 additions and 2 deletions
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4
ioctl.h
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@ -480,9 +480,9 @@ static inline char *btrfs_err_str(enum btrfs_err_code err_code)
case BTRFS_ERROR_DEV_RAID10_MIN_NOT_MET:
return "unable to go below four devices on raid10";
case BTRFS_ERROR_DEV_RAID5_MIN_NOT_MET:
return "unable to go below three devices on raid5";
return "unable to go below two devices on raid5";
case BTRFS_ERROR_DEV_RAID6_MIN_NOT_MET:
return "unable to go below four devices on raid6";
return "unable to go below three devices on raid6";
case BTRFS_ERROR_DEV_TGT_REPLACE:
return "unable to remove the dev_replace target dev";
case BTRFS_ERROR_DEV_MISSING_NOT_FOUND: