fs/btrfs/volumes.c

288  * fs_devices::device_list_mutex (per-fs, with RCU)
322  *   device_list_mutex
387 	mutex_init(&fs_devs->device_list_mutex);
534 		mutex_lock(&fs_devices->device_list_mutex);
554 		mutex_unlock(&fs_devices->device_list_mutex);
641  * fs_devices->device_list_mutex here.
788 		mutex_lock(&fs_devices->device_list_mutex);
798 		mutex_lock(&fs_devices->device_list_mutex);
818 			mutex_unlock(&fs_devices->device_list_mutex);
827 			mutex_unlock(&fs_devices->device_list_mutex);
888 			mutex_unlock(&fs_devices->device_list_mutex);
906 				mutex_unlock(&fs_devices->device_list_mutex);
923 			mutex_unlock(&fs_devices->device_list_mutex);
949 	mutex_unlock(&fs_devices->device_list_mutex);
1246 	 * The device_list_mutex cannot be taken here in case opening the
1341 		mutex_lock(&fs_devices->device_list_mutex);
1344 			mutex_unlock(&fs_devices->device_list_mutex);
1351 				mutex_unlock(&fs_devices->device_list_mutex);
1357 		mutex_unlock(&fs_devices->device_list_mutex);
2134 	 * uuid_mutex nor device_list_mutex) as it won't change on a mounted
2213 	mutex_lock(&fs_devices->device_list_mutex);
2235 	mutex_unlock(&fs_devices->device_list_mutex);
2292 	lockdep_assert_held(&srcdev->fs_info->fs_devices->device_list_mutex);
2346 	mutex_lock(&fs_devices->device_list_mutex);
2359 	mutex_unlock(&fs_devices->device_list_mutex);
2501 	mutex_init(&seed_devices->device_list_mutex);
2526 	 * device_list_mutex:
2531 	 * For-read threads as below are using device_list_mutex:
2536 	lockdep_assert_held(&fs_devices->device_list_mutex);
2725 		/* GFP_KERNEL allocation must not be under device_list_mutex */
2734 	mutex_lock(&fs_devices->device_list_mutex);
2777 	mutex_unlock(&fs_devices->device_list_mutex);
2850 	mutex_lock(&fs_info->fs_devices->device_list_mutex);
2865 	mutex_unlock(&fs_info->fs_devices->device_list_mutex);
3209 	 * We take the device_list_mutex to avoid racing with the finishing phase
3217 	mutex_lock(&fs_devices->device_list_mutex);
3224 			mutex_unlock(&fs_devices->device_list_mutex);
3238 	mutex_unlock(&fs_devices->device_list_mutex);
3258 	 *    device_list_mutex and the chunk_mutex, in that order, so we are
5783 	 *    Here we can't use the device_list_mutex because our caller already
5785 	 *    acquires both mutexes - first the device_list_mutex and then the
7645 	mutex_lock(&fs_devices->device_list_mutex);
7659 	mutex_unlock(&fs_devices->device_list_mutex);
7742 	mutex_lock(&fs_devices->device_list_mutex);
7756 	mutex_unlock(&fs_devices->device_list_mutex);
7838 	mutex_lock(&fs_devices->device_list_mutex);
7862 	mutex_unlock(&fs_devices->device_list_mutex);
7911 	mutex_lock(&fs_devices->device_list_mutex);
7914 	mutex_unlock(&fs_devices->device_list_mutex);
7959 	 * We don't need the device_list_mutex here.  This list is owned by the