luck/tmp_suning_uos_patched
1
0
Fork 1
Code Issues Pull Requests Packages Projects Releases Wiki Activity

[PATCH] scsi: remove volatile from scsi data

Browse Source 
This patch removes volatile qualifier from scsi_device->device_busy,
Scsi_Host->host_busy and ->host_failed as the volatile qualifiers
don't serve any purpose now.  While at it, convert those fields from
unsigned short to unsigned int as suggested by Christoph.


Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
2005-04-17 14:57:29 -05:00 committed by James Bottomley
parent bf341919db
commit 06f81ea8ca
2 changed files with 10 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
include/scsi/scsi_device.h
View File

@ -43,7 +43,8 @@ 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 */
volatile unsigned short device_busy; /* commands actually active on low-level */
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 */

10
include/scsi/scsi_host.h
View File

@ -448,8 +448,14 @@ struct Scsi_Host {
wait_queue_head_t host_wait;
struct scsi_host_template *hostt;
struct scsi_transport_template *transportt;
volatile unsigned short host_busy; /* commands actually active on low-level */
volatile unsigned short host_failed; /* commands that failed. */
/*
* The following two fields are protected with host_lock;
* however, eh routines can safely access during eh processing
* without acquiring the lock.
*/
unsigned int host_busy; /* commands actually active on low-level */
unsigned int host_failed; /* commands that failed. */
unsigned short host_no; /* Used for IOCTL_GET_IDLUN, /proc/scsi et al. */
int resetting; /* if set, it means that last_reset is a valid value */