}
EXPORT_SYMBOL_GPL(scsi_target_unblock);
+int
+scsi_host_block(struct Scsi_Host *shost)
+{
+ struct scsi_device *sdev;
+ int ret = 0;
+
+ shost_for_each_device(sdev, shost) {
+ ret = scsi_internal_device_block(sdev);
+ if (ret)
+ break;
+ }
+ return ret;
+}
+EXPORT_SYMBOL_GPL(scsi_host_block);
+
+int
+scsi_host_unblock(struct Scsi_Host *shost, int new_state)
+{
+ struct scsi_device *sdev;
+ int ret = 0;
+
+ shost_for_each_device(sdev, shost) {
+ ret = scsi_internal_device_unblock(sdev, new_state);
+ if (ret)
+ break;
+ }
+ return ret;
+}
+EXPORT_SYMBOL_GPL(scsi_host_unblock);
+
/**
* scsi_kmap_atomic_sg - find and atomically map an sg-elemnt
* @sgl: scatter-gather list
extern void scsi_unblock_requests(struct Scsi_Host *);
extern void scsi_block_requests(struct Scsi_Host *);
+extern int scsi_host_block(struct Scsi_Host *shost);
+extern int scsi_host_unblock(struct Scsi_Host *shost, int new_state);
struct class_container;