ocfs2: Implement compat_ioctl()
We need this to support 32 bit system calls on 64 bit kernels.
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
diff --git a/fs/ocfs2/ioctl.c b/fs/ocfs2/ioctl.c
index 4768be5..7e59c93 100644
--- a/fs/ocfs2/ioctl.c
+++ b/fs/ocfs2/ioctl.c
@@ -134,3 +134,26 @@
}
}
+#ifdef CONFIG_COMPAT
+long ocfs2_compat_ioctl(struct file *file, unsigned cmd, unsigned long arg)
+{
+ struct inode *inode = file->f_path.dentry->d_inode;
+ int ret;
+
+ switch (cmd) {
+ case OCFS2_IOC32_GETFLAGS:
+ cmd = OCFS2_IOC_GETFLAGS;
+ break;
+ case OCFS2_IOC32_SETFLAGS:
+ cmd = OCFS2_IOC_SETFLAGS;
+ break;
+ default:
+ return -ENOIOCTLCMD;
+ }
+
+ lock_kernel();
+ ret = ocfs2_ioctl(inode, file, cmd, arg);
+ unlock_kernel();
+ return ret;
+}
+#endif
