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authorJes Sorensen <jes@trained-monkey.org>2006-01-11 16:39:45 +0300
committerJames Bottomley <jejb@mulgrave.(none)>2006-01-14 19:55:12 +0300
commita12e25bd59e36d12dcd026ffa3c65d48b5cf5442 (patch)
treea09d828f0e552a9e58dfcfae6c877011e92812cf
parent3759b788498ffc0b2563181567af4c82d983f921 (diff)
downloadlinux-a12e25bd59e36d12dcd026ffa3c65d48b5cf5442.tar.xz
[SCSI] sem2mutex 3w-[x9]xxx
Convert a the 3w-9xxx.c and 3w-xxxx.c drivers to use mutexes instead of semaphores. Untested, but compiles and looks obviously correct. Signed-off-by: Jes Sorensen <jes@sgi.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
-rw-r--r--drivers/scsi/3w-9xxx.c7
-rw-r--r--drivers/scsi/3w-9xxx.h2
-rw-r--r--drivers/scsi/3w-xxxx.c7
-rw-r--r--drivers/scsi/3w-xxxx.h2
4 files changed, 10 insertions, 8 deletions
diff --git a/drivers/scsi/3w-9xxx.c b/drivers/scsi/3w-9xxx.c
index 3ff74f472249..31c497542272 100644
--- a/drivers/scsi/3w-9xxx.c
+++ b/drivers/scsi/3w-9xxx.c
@@ -73,6 +73,7 @@
#include <linux/delay.h>
#include <linux/pci.h>
#include <linux/time.h>
+#include <linux/mutex.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/uaccess.h>
@@ -615,7 +616,7 @@ static int twa_chrdev_ioctl(struct inode *inode, struct file *file, unsigned int
void __user *argp = (void __user *)arg;
/* Only let one of these through at a time */
- if (down_interruptible(&tw_dev->ioctl_sem)) {
+ if (mutex_lock_interruptible(&tw_dev->ioctl_lock)) {
retval = TW_IOCTL_ERROR_OS_EINTR;
goto out;
}
@@ -852,7 +853,7 @@ out3:
/* Now free ioctl buf memory */
dma_free_coherent(&tw_dev->tw_pci_dev->dev, data_buffer_length_adjusted+sizeof(TW_Ioctl_Buf_Apache) - 1, cpu_addr, dma_handle);
out2:
- up(&tw_dev->ioctl_sem);
+ mutex_unlock(&tw_dev->ioctl_lock);
out:
return retval;
} /* End twa_chrdev_ioctl() */
@@ -1182,7 +1183,7 @@ static int twa_initialize_device_extension(TW_Device_Extension *tw_dev)
tw_dev->error_sequence_id = 1;
tw_dev->chrdev_request_id = TW_IOCTL_CHRDEV_FREE;
- init_MUTEX(&tw_dev->ioctl_sem);
+ mutex_init(&tw_dev->ioctl_lock);
init_waitqueue_head(&tw_dev->ioctl_wqueue);
retval = 0;
diff --git a/drivers/scsi/3w-9xxx.h b/drivers/scsi/3w-9xxx.h
index 46f22cdc8298..1b16d57f0314 100644
--- a/drivers/scsi/3w-9xxx.h
+++ b/drivers/scsi/3w-9xxx.h
@@ -672,7 +672,7 @@ typedef struct TAG_TW_Device_Extension {
u32 ioctl_msec;
int chrdev_request_id;
wait_queue_head_t ioctl_wqueue;
- struct semaphore ioctl_sem;
+ struct mutex ioctl_lock;
char aen_clobber;
unsigned short working_srl;
unsigned short working_branch;
diff --git a/drivers/scsi/3w-xxxx.c b/drivers/scsi/3w-xxxx.c
index 283f6d25892b..25f678d0780b 100644
--- a/drivers/scsi/3w-xxxx.c
+++ b/drivers/scsi/3w-xxxx.c
@@ -203,6 +203,7 @@
#include <linux/delay.h>
#include <linux/pci.h>
#include <linux/time.h>
+#include <linux/mutex.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/uaccess.h>
@@ -888,7 +889,7 @@ static int tw_chrdev_ioctl(struct inode *inode, struct file *file, unsigned int
dprintk(KERN_WARNING "3w-xxxx: tw_chrdev_ioctl()\n");
/* Only let one of these through at a time */
- if (down_interruptible(&tw_dev->ioctl_sem))
+ if (mutex_lock_interruptible(&tw_dev->ioctl_lock))
return -EINTR;
/* First copy down the buffer length */
@@ -1029,7 +1030,7 @@ out2:
/* Now free ioctl buf memory */
dma_free_coherent(&tw_dev->tw_pci_dev->dev, data_buffer_length_adjusted+sizeof(TW_New_Ioctl) - 1, cpu_addr, dma_handle);
out:
- up(&tw_dev->ioctl_sem);
+ mutex_unlock(&tw_dev->ioctl_lock);
return retval;
} /* End tw_chrdev_ioctl() */
@@ -1270,7 +1271,7 @@ static int tw_initialize_device_extension(TW_Device_Extension *tw_dev)
tw_dev->pending_tail = TW_Q_START;
tw_dev->chrdev_request_id = TW_IOCTL_CHRDEV_FREE;
- init_MUTEX(&tw_dev->ioctl_sem);
+ mutex_init(&tw_dev->ioctl_lock);
init_waitqueue_head(&tw_dev->ioctl_wqueue);
return 0;
diff --git a/drivers/scsi/3w-xxxx.h b/drivers/scsi/3w-xxxx.h
index 4f81fc39ec57..31fe5ea15920 100644
--- a/drivers/scsi/3w-xxxx.h
+++ b/drivers/scsi/3w-xxxx.h
@@ -420,7 +420,7 @@ typedef struct TAG_TW_Device_Extension {
u32 max_sector_count;
u32 aen_count;
struct Scsi_Host *host;
- struct semaphore ioctl_sem;
+ struct mutex ioctl_lock;
unsigned short aen_queue[TW_Q_LENGTH];
unsigned char aen_head;
unsigned char aen_tail;