121 static rwlock_t sg_dev_arr_lock = RW_LOCK_UNLOCKED;  /* Also used to lock  variable
1211     read_lock(&sg_dev_arr_lock);  in sg_cmd_done_bh()
1217 	read_unlock(&sg_dev_arr_lock);  in sg_cmd_done_bh()
1236 	read_unlock(&sg_dev_arr_lock);  in sg_cmd_done_bh()
1256     read_unlock(&sg_dev_arr_lock);  in sg_cmd_done_bh()
1352     write_lock_irqsave(&sg_dev_arr_lock, iflags);  in sg_init()
1358 	    write_unlock_irqrestore(&sg_dev_arr_lock, iflags);  in sg_init()
1371 	write_unlock_irqrestore(&sg_dev_arr_lock, iflags);  in sg_init()
1376     write_unlock_irqrestore(&sg_dev_arr_lock, iflags);  in sg_init()
1410     write_lock_irqsave(&sg_dev_arr_lock, iflags);  in sg_attach()
1419 	    write_unlock_irqrestore(&sg_dev_arr_lock, iflags);  in sg_attach()
1434 	write_unlock_irqrestore(&sg_dev_arr_lock, iflags);  in sg_attach()
1447 	write_unlock_irqrestore(&sg_dev_arr_lock, iflags);  in sg_attach()
1467     write_unlock_irqrestore(&sg_dev_arr_lock, iflags);  in sg_attach()
1499     write_lock_irqsave(&sg_dev_arr_lock, iflags);  in sg_detach()
1546     write_unlock_irqrestore(&sg_dev_arr_lock, iflags);  in sg_detach()
2342     read_lock_irqsave(&sg_dev_arr_lock, iflags);  in sg_get_nth_sfp()
2346     read_unlock_irqrestore(&sg_dev_arr_lock, iflags);  in sg_get_nth_sfp()
2371     write_lock_irqsave(&sg_dev_arr_lock, iflags);  in sg_add_sfp()
2380     write_unlock_irqrestore(&sg_dev_arr_lock, iflags);  in sg_add_sfp()
2436 	write_lock_irqsave(&sg_dev_arr_lock, iflags);  in sg_remove_sfp()
2451 	write_unlock_irqrestore(&sg_dev_arr_lock, iflags);  in sg_remove_sfp()
2675     read_lock_irqsave(&sg_dev_arr_lock, iflags);  in sg_last_dev()
2678     read_unlock_irqrestore(&sg_dev_arr_lock, iflags);  in sg_last_dev()
2690 	read_lock_irqsave(&sg_dev_arr_lock, iflags);  in sg_get_dev()
2693 	read_unlock_irqrestore(&sg_dev_arr_lock, iflags);  in sg_get_dev()