X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=drivers%2Fscsi%2Fst.c;h=71952703125a634a05869e1c6d44fe929a02f1ba;hb=51883b5e60796cce556370dbc368fd22c60c0e3e;hp=16e279be4a3e17dd4422192ffa473b9b285d15a1;hpb=81b7bbd1932a04869d4c8635a75222dfc6089f96;p=safe%2Fjmp%2Flinux-2.6

diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c
index 16e279b..7195270 100644
--- a/drivers/scsi/st.c
+++ b/drivers/scsi/st.c
@@ -9,7 +9,7 @@
    Steve Hirsch, Andreas Koppenh"ofer, Michael Leodolter, Eyal Lebedinsky,
    Michael Schaefer, J"org Weule, and Eric Youngdale.
 
-   Copyright 1992 - 2007 Kai Makisara
+   Copyright 1992 - 2008 Kai Makisara
    email Kai.Makisara@kolumbus.fi
 
    Some small formal changes - aeb, 950809
@@ -17,7 +17,7 @@
    Last modified: 18-JAN-1998 Richard Gooch <rgooch@atnf.csiro.au> Devfs support
  */
 
-static const char *verstr = "20070203";
+static const char *verstr = "20080117";
 
 #include <linux/module.h>
 
@@ -89,6 +89,7 @@ MODULE_AUTHOR("Kai Makisara");
 MODULE_DESCRIPTION("SCSI tape (st) driver");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS_CHARDEV_MAJOR(SCSI_TAPE_MAJOR);
+MODULE_ALIAS_SCSI_DEVICE(TYPE_TAPE);
 
 /* Set 'perm' (4th argument) to 0 to disable module_param's definition
  * of sysfs parameters (which module_param doesn't yet support).
@@ -195,8 +196,8 @@ static int sgl_unmap_user_pages(struct scatterlist *, const unsigned int, int);
 static int st_probe(struct device *);
 static int st_remove(struct device *);
 
-static int do_create_driverfs_files(void);
-static void do_remove_driverfs_files(void);
+static int do_create_sysfs_files(void);
+static void do_remove_sysfs_files(void);
 static int do_create_class_files(struct scsi_tape *, int, int);
 
 static struct scsi_driver st_template = {
@@ -1484,7 +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);
@@ -1735,7 +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;
 }
@@ -1941,7 +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);
@@ -2068,7 +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;
 }
@@ -3213,8 +3214,7 @@ static int partition_tape(struct scsi_tape *STp, int size)
 
 
 /* The ioctl command */
-static int st_ioctl(struct inode *inode, struct file *file,
-		    unsigned int cmd_in, unsigned long arg)
+static long st_ioctl(struct file *file, unsigned int cmd_in, unsigned long arg)
 {
 	int i, cmd_nr, cmd_type, bt;
 	int retval = 0;
@@ -3225,7 +3225,7 @@ 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(
@@ -3536,7 +3536,7 @@ 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:
@@ -3548,7 +3548,8 @@ 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;
@@ -3561,7 +3562,7 @@ static int st_ioctl(struct inode *inode, struct file *file,
 	return retval;
 
  out:
-	up(&STp->lock);
+	mutex_unlock(&STp->lock);
 	return retval;
 }
 
@@ -3609,6 +3610,7 @@ static struct st_buffer *
 
 	tb->dma = need_dma;
 	tb->buffer_size = got;
+	sg_init_table(tb->sg, max_sg);
 
 	return tb;
 }
@@ -3795,13 +3797,11 @@ static void buf_to_sg(struct st_buffer *STbp, unsigned int length)
 	sg = &(STbp->sg[0]);
 	frp = STbp->frp;
 	for (i=count=0; count < length; i++) {
-		sg[i].page = frp[i].page;
 		if (length - count > frp[i].length)
-			sg[i].length = frp[i].length;
+			sg_set_page(&sg[i], frp[i].page, frp[i].length, 0);
 		else
-			sg[i].length = length - count;
+			sg_set_page(&sg[i], frp[i].page, length - count, 0);
 		count += sg[i].length;
-		sg[i].offset = 0;
 	}
 	STbp->sg_segs = i;
 	STbp->frp_sg_current = length;
@@ -3864,12 +3864,12 @@ __setup("st=", st_setup);
 
 #endif
 
-static struct file_operations st_fops =
+static const struct file_operations st_fops =
 {
 	.owner =	THIS_MODULE,
 	.read =		st_read,
 	.write =	st_write,
-	.ioctl =	st_ioctl,
+	.unlocked_ioctl = st_ioctl,
 #ifdef CONFIG_COMPAT
 	.compat_ioctl = st_compat_ioctl,
 #endif
@@ -4027,7 +4027,7 @@ 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);
@@ -4193,7 +4193,7 @@ static int __init init_st(void)
 	if (err)
 		goto err_chrdev;
 
-	err = do_create_driverfs_files();
+	err = do_create_sysfs_files();
 	if (err)
 		goto err_scsidrv;
 
@@ -4211,7 +4211,7 @@ err_class:
 
 static void __exit exit_st(void)
 {
-	do_remove_driverfs_files();
+	do_remove_sysfs_files();
 	scsi_unregister_driver(&st_template.gendrv);
 	unregister_chrdev_region(MKDEV(SCSI_TAPE_MAJOR, 0),
 				 ST_MAX_TAPE_ENTRIES);
@@ -4249,43 +4249,43 @@ static ssize_t st_version_show(struct device_driver *ddd, char *buf)
 }
 static DRIVER_ATTR(version, S_IRUGO, st_version_show, NULL);
 
-static int do_create_driverfs_files(void)
+static int do_create_sysfs_files(void)
 {
-	struct device_driver *driverfs = &st_template.gendrv;
+	struct device_driver *sysfs = &st_template.gendrv;
 	int err;
 
-	err = driver_create_file(driverfs, &driver_attr_try_direct_io);
+	err = driver_create_file(sysfs, &driver_attr_try_direct_io);
 	if (err)
 		return err;
-	err = driver_create_file(driverfs, &driver_attr_fixed_buffer_size);
+	err = driver_create_file(sysfs, &driver_attr_fixed_buffer_size);
 	if (err)
 		goto err_try_direct_io;
-	err = driver_create_file(driverfs, &driver_attr_max_sg_segs);
+	err = driver_create_file(sysfs, &driver_attr_max_sg_segs);
 	if (err)
 		goto err_attr_fixed_buf;
-	err = driver_create_file(driverfs, &driver_attr_version);
+	err = driver_create_file(sysfs, &driver_attr_version);
 	if (err)
 		goto err_attr_max_sg;
 
 	return 0;
 
 err_attr_max_sg:
-	driver_remove_file(driverfs, &driver_attr_max_sg_segs);
+	driver_remove_file(sysfs, &driver_attr_max_sg_segs);
 err_attr_fixed_buf:
-	driver_remove_file(driverfs, &driver_attr_fixed_buffer_size);
+	driver_remove_file(sysfs, &driver_attr_fixed_buffer_size);
 err_try_direct_io:
-	driver_remove_file(driverfs, &driver_attr_try_direct_io);
+	driver_remove_file(sysfs, &driver_attr_try_direct_io);
 	return err;
 }
 
-static void do_remove_driverfs_files(void)
+static void do_remove_sysfs_files(void)
 {
-	struct device_driver *driverfs = &st_template.gendrv;
+	struct device_driver *sysfs = &st_template.gendrv;
 
-	driver_remove_file(driverfs, &driver_attr_version);
-	driver_remove_file(driverfs, &driver_attr_max_sg_segs);
-	driver_remove_file(driverfs, &driver_attr_fixed_buffer_size);
-	driver_remove_file(driverfs, &driver_attr_try_direct_io);
+	driver_remove_file(sysfs, &driver_attr_version);
+	driver_remove_file(sysfs, &driver_attr_max_sg_segs);
+	driver_remove_file(sysfs, &driver_attr_fixed_buffer_size);
+	driver_remove_file(sysfs, &driver_attr_try_direct_io);
 }
 
 
@@ -4444,15 +4444,13 @@ static int sgl_map_user_pages(struct scatterlist *sgl, const unsigned int max_pa
         }
 
 	/* Populate the scatter/gather list */
-	sgl[0].page = pages[0]; 
-	sgl[0].offset = uaddr & ~PAGE_MASK;
+	sg_set_page(&sgl[0], pages[0], 0, uaddr & ~PAGE_MASK);
 	if (nr_pages > 1) {
 		sgl[0].length = PAGE_SIZE - sgl[0].offset;
 		count -= sgl[0].length;
 		for (i=1; i < nr_pages ; i++) {
-			sgl[i].offset = 0;
-			sgl[i].page = pages[i]; 
-			sgl[i].length = count < PAGE_SIZE ? count : PAGE_SIZE;
+			sg_set_page(&sgl[i], pages[i],
+				    count < PAGE_SIZE ? count : PAGE_SIZE, 0);;
 			count -= PAGE_SIZE;
 		}
 	}
@@ -4481,7 +4479,7 @@ static int sgl_unmap_user_pages(struct scatterlist *sgl, const unsigned int nr_p
 	int i;
 
 	for (i=0; i < nr_pages; i++) {
-		struct page *page = sgl[i].page;
+		struct page *page = sg_page(&sgl[i]);
 
 		if (dirtied)
 			SetPageDirty(page);