btrfs: cleanup device states define BTRFS_DEV_STATE_MISSING

Currently device state is being managed by each individual int
variable such as struct btrfs_device::missing. Instead of that
declare btrfs_device::dev_state BTRFS_DEV_STATE_MISSING and use
the bit operations.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by : Nikolay Borisov <nborisov@suse.com>
[ whitespace adjustments ]
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Anand Jain
2017-12-04 12:54:54 +08:00
committed by David Sterba
parent e12c96214d
commit e6e674bd4d
6 changed files with 28 additions and 21 deletions

View File

@@ -2270,7 +2270,7 @@ static int btrfs_show_devname(struct seq_file *m, struct dentry *root)
while (cur_devices) {
head = &cur_devices->devices;
list_for_each_entry(dev, head, dev_list) {
if (dev->missing)
if (test_bit(BTRFS_DEV_STATE_MISSING, &dev->dev_state))
continue;
if (!dev->name)
continue;