2 files changed, 31 insertions, 36 deletions

diff --git a/drivers/scsi/osd/osd_uld.c b/drivers/scsi/osd/osd_uld.c
index 22b59e13ba83..0bdef3390902 100644
--- a/drivers/scsi/osd/osd_uld.c
+++ b/drivers/scsi/osd/osd_uld.c
@@ -49,6 +49,7 @@
 #include <linux/device.h>
 #include <linux/idr.h>
 #include <linux/major.h>
+#include <linux/file.h>
 
 #include <scsi/scsi.h>
 #include <scsi/scsi_driver.h>
@@ -175,10 +176,9 @@ static const struct file_operations osd_fops = {
 
 struct osd_dev *osduld_path_lookup(const char *name)
 {
-        struct path path;
-        struct inode *inode;
-        struct cdev *cdev;
-        struct osd_uld_device *uninitialized_var(oud);
+        struct osd_uld_device *oud;
+        struct osd_dev *od;
+        struct file *file;
         int error;
 
         if (!name || !*name) {
@@ -186,52 +186,46 @@ struct osd_dev *osduld_path_lookup(const char *name)
                 return ERR_PTR(-EINVAL);
         }
 
-        error = kern_path(name, LOOKUP_FOLLOW, &path);
-        if (error) {
-                OSD_ERR("path_lookup of %s failed=>%d\n", name, error);
-                return ERR_PTR(error);
-        }
+        od = kzalloc(sizeof(*od), GFP_KERNEL);
+        if (!od)
+                return ERR_PTR(-ENOMEM);
 
-        inode = path.dentry->d_inode;
-        error = -EINVAL; /* Not the right device e.g osd_uld_device */
-        if (!S_ISCHR(inode->i_mode)) {
-                OSD_DEBUG("!S_ISCHR()\n");
-                goto out;
+        file = filp_open(name, O_RDWR, 0);
+        if (IS_ERR(file)) {
+                error = PTR_ERR(file);
+                goto free_od;
         }
 
-        cdev = inode->i_cdev;
-        if (!cdev) {
-                OSD_ERR("Before mounting an OSD Based filesystem\n");
-                OSD_ERR("  user-mode must open+close the %s device\n", name);
-                OSD_ERR("  Example: bash: echo < %s\n", name);
-                goto out;
+        if (file->f_op != &osd_fops){
+                error = -EINVAL;
+                goto close_file;
         }
 
-        /* The Magic wand. Is it our char-dev */
-        /* TODO: Support sg devices */
-        if (cdev->owner != THIS_MODULE) {
-                OSD_ERR("Error mounting %s - is not an OSD device\n", name);
-                goto out;
-        }
+        oud = file->private_data;
 
-        oud = container_of(cdev, struct osd_uld_device, cdev);
+        *od = oud->od;
+        od->file = file;
 
-        __uld_get(oud);
-        error = 0;
+        return od;
 
-out:
-        path_put(&path);
-        return error ? ERR_PTR(error) : &oud->od;
+close_file:
+        fput(file);
+free_od:
+        kfree(od);
+        return ERR_PTR(error);
 }
 EXPORT_SYMBOL(osduld_path_lookup);
 
 void osduld_put_device(struct osd_dev *od)
 {
-        if (od) {
-                struct osd_uld_device *oud = container_of(od,
-                                                struct osd_uld_device, od);
 
-                __uld_put(oud);
+        if (od && !IS_ERR(od)) {
+                struct osd_uld_device *oud = od->file->private_data;
+
+                BUG_ON(od->scsi_device != oud->od.scsi_device);
+
+                fput(od->file);
+                kfree(od);
         }
 }
 EXPORT_SYMBOL(osduld_put_device);
diff --git a/include/scsi/osd_initiator.h b/include/scsi/osd_initiator.h
index b44dc53bd881..02bd9f716357 100644
--- a/include/scsi/osd_initiator.h
+++ b/include/scsi/osd_initiator.h
@@ -48,6 +48,7 @@ enum osd_std_version {
  */
 struct osd_dev {
         struct scsi_device *scsi_device;
+        struct file *file;
         unsigned def_timeout;
 
 #ifdef OSD_VER1_SUPPORT