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btrfs: cleanup device states define BTRFS_DEV_STATE_IN_FS_METADATA

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Currently device state is being managed by each individual int
variable such as struct btrfs_device::in_fs_metadata. Instead of
that declare device state BTRFS_DEV_STATE_IN_FS_METADATA 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 12:54:53 +08:00
committed by David Sterba
parent ebbede42d4
commit e12c96214d
5 changed files with 27 additions and 20 deletions
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5
fs/btrfs/super.c
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@@ -1972,8 +1972,9 @@ static int btrfs_calc_avail_data_space(struct btrfs_fs_info *fs_info,
rcu_read_lock();
list_for_each_entry_rcu(device, &fs_devices->devices, dev_list) {
if (!device->in_fs_metadata || !device->bdev ||
device->is_tgtdev_for_dev_replace)
if (!test_bit(BTRFS_DEV_STATE_IN_FS_METADATA,
&device->dev_state) ||
!device->bdev || device->is_tgtdev_for_dev_replace)
continue;
if (i >= nr_devices)