diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/blkdev.h | 5 | ||||
| -rw-r--r-- | include/scsi/scsi_device.h | 2 |
2 files changed, 5 insertions, 2 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 70ac2860a60..ef1afc178c0 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -355,8 +355,11 @@ struct request_queue unsigned long queue_flags; /* - * protects queue structures from reentrancy + * protects queue structures from reentrancy. ->__queue_lock should + * _never_ be used directly, it is queue private. always use + * ->queue_lock. */ + spinlock_t __queue_lock; spinlock_t *queue_lock; /* diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index 7099d2ce967..c018020d916 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -43,9 +43,9 @@ struct scsi_device { struct list_head siblings; /* list of all devices on this host */ struct list_head same_target_siblings; /* just the devices sharing same target id */ + /* this is now protected by the request_queue->queue_lock */ unsigned int device_busy; /* commands actually active on * low-level. protected by queue_lock. */ - spinlock_t sdev_lock; /* also the request queue_lock */ spinlock_t list_lock; struct list_head cmd_list; /* queue of in use SCSI Command structures */ struct list_head starved_entry; |