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btrfs: replace BUG in can_modify_feature 

We don't need to crash hard here, it's just reading a sysfs file. The
values considered in switch are from a fixed set, the default case
should not happen at all.

Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
This commit is contained in:
David Sterba 2013-11-19 13:36:21 +01:00 committed by Chris Mason
parent 43d87fa231
commit cc37bb0420
1 changed files with 3 additions and 1 deletions
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4
fs/btrfs/sysfs.c
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@ -75,7 +75,9 @@ static int can_modify_feature(struct btrfs_feature_attr *fa)
clear = BTRFS_FEATURE_INCOMPAT_SAFE_CLEAR;
break;
default:
BUG();
printk(KERN_WARNING "btrfs: sysfs: unknown feature set %d\n",
fa->feature_set);
return 0;
}
if (set & fa->feature_bit)