Btrfs: Release uuid_mutex for shrink during device delete

Device scanning waits on the uuid_mutex, which can result in a very long
wait if dev delete is shrinking the device.

Signed-off-by: Carey Underwood <cwillu@cwillu.com>
Reviewed-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
This commit is contained in:
Carey Underwood 2013-03-04 16:37:06 -06:00 коммит произвёл Chris Mason
Родитель b2aaaa3b8c
Коммит d790155457
1 изменённых файлов: 2 добавлений и 0 удалений

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@ -1562,7 +1562,9 @@ int btrfs_rm_device(struct btrfs_root *root, char *device_path)
clear_super = true;
}
mutex_unlock(&uuid_mutex);
ret = btrfs_shrink_device(device, 0);
mutex_lock(&uuid_mutex);
if (ret)
goto error_undo;