summaryrefslogtreecommitdiffstats
path: root/drivers/scsi/sg.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/scsi/sg.c')
-rw-r--r--drivers/scsi/sg.c61
1 files changed, 26 insertions, 35 deletions
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 4d09a6e4dd2..b55c2a8a547 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -49,6 +49,7 @@ static int sg_version_num = 30533; /* 2 digits for each component */
#include <linux/seq_file.h>
#include <linux/blkdev.h>
#include <linux/delay.h>
+#include <linux/scatterlist.h>
#include "scsi.h"
#include <scsi/scsi_dbg.h>
@@ -67,10 +68,6 @@ static int sg_proc_init(void);
static void sg_proc_cleanup(void);
#endif
-#ifndef LINUX_VERSION_CODE
-#include <linux/version.h>
-#endif /* LINUX_VERSION_CODE */
-
#define SG_ALLOW_DIO_DEF 0
#define SG_ALLOW_DIO_CODE /* compile out by commenting this define */
@@ -104,8 +101,8 @@ static int sg_allow_dio = SG_ALLOW_DIO_DEF;
#define SG_DEV_ARR_LUMP 32 /* amount to over allocate sg_dev_arr by */
-static int sg_add(struct class_device *);
-static void sg_remove(struct class_device *);
+static int sg_add(struct class_device *, struct class_interface *);
+static void sg_remove(struct class_device *, struct class_interface *);
static Scsi_Request *dummy_cmdp; /* only used for sizeof */
@@ -475,8 +472,7 @@ sg_read(struct file *filp, char __user *buf, size_t count, loff_t * ppos)
sg_finish_rem_req(srp);
retval = count;
free_old_hdr:
- if (old_hdr)
- kfree(old_hdr);
+ kfree(old_hdr);
return retval;
}
@@ -1497,16 +1493,15 @@ static int sg_alloc(struct gendisk *disk, struct scsi_device *scsidp)
overflow:
write_unlock_irqrestore(&sg_dev_arr_lock, iflags);
- printk(KERN_WARNING
- "Unable to attach sg device <%d, %d, %d, %d> type=%d, minor "
- "number exceeds %d\n", scsidp->host->host_no, scsidp->channel,
- scsidp->id, scsidp->lun, scsidp->type, SG_MAX_DEVS - 1);
+ sdev_printk(KERN_WARNING, scsidp,
+ "Unable to attach sg device type=%d, minor "
+ "number exceeds %d\n", scsidp->type, SG_MAX_DEVS - 1);
error = -ENODEV;
goto out;
}
static int
-sg_add(struct class_device *cl_dev)
+sg_add(struct class_device *cl_dev, struct class_interface *cl_intf)
{
struct scsi_device *scsidp = to_scsi_device(cl_dev->dev);
struct gendisk *disk;
@@ -1550,7 +1545,7 @@ sg_add(struct class_device *cl_dev)
if (sg_sysfs_valid) {
struct class_device * sg_class_member;
- sg_class_member = class_device_create(sg_sysfs_class,
+ sg_class_member = class_device_create(sg_sysfs_class, NULL,
MKDEV(SCSI_GENERIC_MAJOR, k),
cl_dev->dev, "%s",
disk->disk_name);
@@ -1566,11 +1561,8 @@ sg_add(struct class_device *cl_dev)
} else
printk(KERN_WARNING "sg_add: sg_sys INvalid\n");
- printk(KERN_NOTICE
- "Attached scsi generic sg%d at scsi%d, channel"
- " %d, id %d, lun %d, type %d\n", k,
- scsidp->host->host_no, scsidp->channel, scsidp->id,
- scsidp->lun, scsidp->type);
+ sdev_printk(KERN_NOTICE, scsidp,
+ "Attached scsi generic sg%d type %d\n", k,scsidp->type);
return 0;
@@ -1582,7 +1574,7 @@ out:
}
static void
-sg_remove(struct class_device *cl_dev)
+sg_remove(struct class_device *cl_dev, struct class_interface *cl_intf)
{
struct scsi_device *scsidp = to_scsi_device(cl_dev->dev);
Sg_device *sdp = NULL;
@@ -1706,10 +1698,8 @@ exit_sg(void)
sg_sysfs_valid = 0;
unregister_chrdev_region(MKDEV(SCSI_GENERIC_MAJOR, 0),
SG_MAX_DEVS);
- if (sg_dev_arr != NULL) {
- kfree((char *) sg_dev_arr);
- sg_dev_arr = NULL;
- }
+ kfree((char *)sg_dev_arr);
+ sg_dev_arr = NULL;
sg_dev_max = 0;
}
@@ -1870,9 +1860,11 @@ st_map_user_pages(struct scatterlist *sgl, const unsigned int max_pages,
unlock_page(pages[j]); */
res = 0;
out_unmap:
- if (res > 0)
+ if (res > 0) {
for (j=0; j < res; j++)
page_cache_release(pages[j]);
+ res = 0;
+ }
kfree(pages);
return res;
}
@@ -1886,13 +1878,15 @@ st_unmap_user_pages(struct scatterlist *sgl, const unsigned int nr_pages,
int i;
for (i=0; i < nr_pages; i++) {
- if (dirtied && !PageReserved(sgl[i].page))
- SetPageDirty(sgl[i].page);
- /* unlock_page(sgl[i].page); */
+ struct page *page = sgl[i].page;
+
+ if (dirtied)
+ SetPageDirty(page);
+ /* unlock_page(page); */
/* FIXME: cache flush missing for rw==READ
* FIXME: call the correct reference counting function
*/
- page_cache_release(sgl[i].page);
+ page_cache_release(page);
}
return 0;
@@ -1992,9 +1986,7 @@ sg_build_indirect(Sg_scatter_hold * schp, Sg_fd * sfp, int buff_size)
if (!p)
break;
}
- sclp->page = virt_to_page(p);
- sclp->offset = offset_in_page(p);
- sclp->length = ret_sz;
+ sg_set_buf(sclp, p, ret_sz);
SCSI_LOG_TIMEOUT(5, printk("sg_build_build: k=%d, a=0x%p, len=%d\n",
k, sg_scatg2virt(sclp), ret_sz));
@@ -2644,7 +2636,7 @@ static char *
sg_page_malloc(int rqSz, int lowDma, int *retSzp)
{
char *resp = NULL;
- int page_mask;
+ gfp_t page_mask;
int order, a_size;
int resSz = rqSz;
@@ -2849,8 +2841,7 @@ sg_proc_init(void)
struct proc_dir_entry *pdep;
struct sg_proc_leaf * leaf;
- sg_proc_sgp = create_proc_entry(sg_proc_sg_dirname,
- S_IFDIR | S_IRUGO | S_IXUGO, NULL);
+ sg_proc_sgp = proc_mkdir(sg_proc_sg_dirname, NULL);
if (!sg_proc_sgp)
return 1;
for (k = 0; k < num_leaves; ++k) {