lseek_execute() doesn't need an inode passed to it

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

fs/read_write.c

@@ -41,8 +41,7 @@ static inline int unsigned_offsets(struct file *file)
 	return file->f_mode & FMODE_UNSIGNED_OFFSET;
 }
 
-static loff_t lseek_execute(struct file *file, struct inode *inode,
-		loff_t offset, loff_t maxsize)
+static loff_t lseek_execute(struct file *file, loff_t offset, loff_t maxsize)
 {
 	if (offset < 0 && !unsigned_offsets(file))
 		return -EINVAL;
@@ -76,8 +75,6 @@ loff_t
 generic_file_llseek_size(struct file *file, loff_t offset, int whence,
 		loff_t maxsize, loff_t eof)
 {
-	struct inode *inode = file->f_mapping->host;
-
 	switch (whence) {
 	case SEEK_END:
 		offset += eof;
@@ -97,8 +94,7 @@ generic_file_llseek_size(struct file *file, loff_t offset, int whence,
 		 * like SEEK_SET.
 		 */
 		spin_lock(&file->f_lock);
-		offset = lseek_execute(file, inode, file->f_pos + offset,
-				       maxsize);
+		offset = lseek_execute(file, file->f_pos + offset, maxsize);
 		spin_unlock(&file->f_lock);
 		return offset;
 	case SEEK_DATA:
@@ -120,7 +116,7 @@ generic_file_llseek_size(struct file *file, loff_t offset, int whence,
 		break;
 	}
 
-	return lseek_execute(file, inode, offset, maxsize);
+	return lseek_execute(file, offset, maxsize);
 }
 EXPORT_SYMBOL(generic_file_llseek_size);