block: remove i_bdev
[linux-2.6-microblaze.git] / fs / super.c
index 343e5c1..2c6cdea 100644 (file)
@@ -740,7 +740,14 @@ void iterate_supers_type(struct file_system_type *type,
 
 EXPORT_SYMBOL(iterate_supers_type);
 
-struct super_block *__get_super(struct block_device *bdev, bool excl)
+/**
+ * get_super - get the superblock of a device
+ * @bdev: device to get the superblock for
+ *
+ * Scans the superblock list and finds the superblock of the file system
+ * mounted on the device given. %NULL is returned if no match is found.
+ */
+struct super_block *get_super(struct block_device *bdev)
 {
        struct super_block *sb;
 
@@ -755,17 +762,11 @@ rescan:
                if (sb->s_bdev == bdev) {
                        sb->s_count++;
                        spin_unlock(&sb_lock);
-                       if (!excl)
-                               down_read(&sb->s_umount);
-                       else
-                               down_write(&sb->s_umount);
+                       down_read(&sb->s_umount);
                        /* still alive? */
                        if (sb->s_root && (sb->s_flags & SB_BORN))
                                return sb;
-                       if (!excl)
-                               up_read(&sb->s_umount);
-                       else
-                               up_write(&sb->s_umount);
+                       up_read(&sb->s_umount);
                        /* nope, got unmounted */
                        spin_lock(&sb_lock);
                        __put_super(sb);
@@ -777,19 +778,6 @@ rescan:
 }
 
 /**
- *     get_super - get the superblock of a device
- *     @bdev: device to get the superblock for
- *
- *     Scans the superblock list and finds the superblock of the file system
- *     mounted on the device given. %NULL is returned if no match is found.
- */
-struct super_block *get_super(struct block_device *bdev)
-{
-       return __get_super(bdev, false);
-}
-EXPORT_SYMBOL(get_super);
-
-/**
  * get_active_super - get an active reference to the superblock of a device
  * @bdev: device to get the superblock for
  *
@@ -820,7 +808,7 @@ restart:
        return NULL;
 }
 
-struct super_block *user_get_super(dev_t dev)
+struct super_block *user_get_super(dev_t dev, bool excl)
 {
        struct super_block *sb;
 
@@ -832,11 +820,17 @@ rescan:
                if (sb->s_dev ==  dev) {
                        sb->s_count++;
                        spin_unlock(&sb_lock);
-                       down_read(&sb->s_umount);
+                       if (excl)
+                               down_write(&sb->s_umount);
+                       else
+                               down_read(&sb->s_umount);
                        /* still alive? */
                        if (sb->s_root && (sb->s_flags & SB_BORN))
                                return sb;
-                       up_read(&sb->s_umount);
+                       if (excl)
+                               up_write(&sb->s_umount);
+                       else
+                               up_read(&sb->s_umount);
                        /* nope, got unmounted */
                        spin_lock(&sb_lock);
                        __put_super(sb);