[PATCH] BLOCK: Move the Ext2 device ioctl compat stuff to the Ext2 driver [try #6]

[mv-sheeva.git] / fs / ext2 / ioctl.c

diff --git a/fs/ext2/ioctl.c b/fs/ext2/ioctl.c
index 3ca9afdf713d579d92f2037cc5ee4f69db9ab3da..1dfba77eab10dc348e0ac3c4fa4e23d2448ac281 100644 (file)
--- a/fs/ext2/ioctl.c
+++ b/fs/ext2/ioctl.c
@@ -11,6 +11,8 @@
 #include <linux/capability.h>
 #include <linux/time.h>
 #include <linux/sched.h>
+#include <linux/compat.h>
+#include <linux/smp_lock.h>
 #include <asm/current.h>
 #include <asm/uaccess.h>
 
@@ -80,3 +82,33 @@ int ext2_ioctl (struct inode * inode, struct file * filp, unsigned int cmd,
                return -ENOTTY;
        }
 }
+
+#ifdef CONFIG_COMPAT
+long ext2_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+       struct inode *inode = file->f_dentry->d_inode;
+       int ret;
+
+       /* These are just misnamed, they actually get/put from/to user an int */
+       switch (cmd) {
+       case EXT2_IOC32_GETFLAGS:
+               cmd = EXT2_IOC_GETFLAGS;
+               break;
+       case EXT2_IOC32_SETFLAGS:
+               cmd = EXT2_IOC_SETFLAGS;
+               break;
+       case EXT2_IOC32_GETVERSION:
+               cmd = EXT2_IOC_GETVERSION;
+               break;
+       case EXT2_IOC32_SETVERSION:
+               cmd = EXT2_IOC_SETVERSION;
+               break;
+       default:
+               return -ENOIOCTLCMD;
+       }
+       lock_kernel();
+       ret = ext2_ioctl(inode, file, cmd, (unsigned long) compat_ptr(arg));
+       unlock_kernel();
+       return ret;
+}
+#endif