From 45e79a3acdcf54113b3d7b23e9e64e6541dbfeb5 Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Mon, 9 Jul 2007 12:39:20 +0200 Subject: bsg: add a request_queue argument to scsi_cmd_ioctl() bsg uses scsi_cmd_ioctl() for some SCSI/sg ioctl commands. scsi_cmd_ioctl() gets a request queue from a gendisk arguement. This prevents bsg being bound to SCSI devices that don't have a gendisk (like OSD). This adds a request_queue argument to scsi_cmd_ioctl(). The SCSI/sg ioctl commands doesn't use a gendisk so it's safe for any SCSI devices to use scsi_cmd_ioctl(). Signed-off-by: FUJITA Tomonori Signed-off-by: Jens Axboe --- drivers/scsi/st.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/scsi/st.c') diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c index 55bfeccf68a2..a4f7b8465773 100644 --- a/drivers/scsi/st.c +++ b/drivers/scsi/st.c @@ -3549,7 +3549,8 @@ static int st_ioctl(struct inode *inode, struct file *file, !capable(CAP_SYS_RAWIO)) i = -EPERM; else - i = scsi_cmd_ioctl(file, STp->disk, cmd_in, p); + i = scsi_cmd_ioctl(file, STp->disk->queue, + STp->disk, cmd_in, p); if (i != -ENOTTY) return i; break; -- cgit v1.2.3 From 28f85009e0cf6a5232cd285131eac3dfe26d9e3a Mon Sep 17 00:00:00 2001 From: Matthias Kaehlcke Date: Sun, 29 Jul 2007 23:38:15 +0200 Subject: [SCSI] st: Use mutex instead of semaphore The SCSI Tape driver uses a semaphore as mutex. Use the mutex API instead of the (binary) semaphore. Signed-off-by: Matthias Kaehlcke Acked-by: Kai Makisara Signed-off-by: James Bottomley --- drivers/scsi/st.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) (limited to 'drivers/scsi/st.c') diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c index a4f7b8465773..73c44cbdea47 100644 --- a/drivers/scsi/st.c +++ b/drivers/scsi/st.c @@ -1485,7 +1485,7 @@ st_write(struct file *filp, const char __user *buf, size_t count, loff_t * ppos) struct st_buffer *STbp; char *name = tape_name(STp); - if (down_interruptible(&STp->lock)) + if (mutex_lock_interruptible(&STp->lock)) return -ERESTARTSYS; retval = rw_checks(STp, filp, count); @@ -1736,7 +1736,7 @@ st_write(struct file *filp, const char __user *buf, size_t count, loff_t * ppos) if (SRpnt != NULL) st_release_request(SRpnt); release_buffering(STp, 0); - up(&STp->lock); + mutex_unlock(&STp->lock); return retval; } @@ -1942,7 +1942,7 @@ st_read(struct file *filp, char __user *buf, size_t count, loff_t * ppos) struct st_buffer *STbp = STp->buffer; DEB( char *name = tape_name(STp); ) - if (down_interruptible(&STp->lock)) + if (mutex_lock_interruptible(&STp->lock)) return -ERESTARTSYS; retval = rw_checks(STp, filp, count); @@ -2069,7 +2069,7 @@ st_read(struct file *filp, char __user *buf, size_t count, loff_t * ppos) release_buffering(STp, 1); STbp->buffer_bytes = 0; } - up(&STp->lock); + mutex_unlock(&STp->lock); return retval; } @@ -3226,7 +3226,7 @@ static int st_ioctl(struct inode *inode, struct file *file, char *name = tape_name(STp); void __user *p = (void __user *)arg; - if (down_interruptible(&STp->lock)) + if (mutex_lock_interruptible(&STp->lock)) return -ERESTARTSYS; DEB( @@ -3537,7 +3537,7 @@ static int st_ioctl(struct inode *inode, struct file *file, retval = (-EFAULT); goto out; } - up(&STp->lock); + mutex_unlock(&STp->lock); switch (cmd_in) { case SCSI_IOCTL_GET_IDLUN: case SCSI_IOCTL_GET_BUS_NUMBER: @@ -3563,7 +3563,7 @@ static int st_ioctl(struct inode *inode, struct file *file, return retval; out: - up(&STp->lock); + mutex_unlock(&STp->lock); return retval; } @@ -4029,7 +4029,7 @@ static int st_probe(struct device *dev) tpnt->density_changed = tpnt->compression_changed = tpnt->blksize_changed = 0; - init_MUTEX(&tpnt->lock); + mutex_init(&tpnt->lock); st_nr_dev++; write_unlock(&st_dev_arr_lock); -- cgit v1.2.3