BKL-removal: Implement a compat_ioctl handler for JFS

The ioctls were already compatible except for the actual values so this
was fairly easy to do.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>

1 files changed, 18 insertions, 0 deletions

diff --git a/fs/jfs/ioctl.c b/fs/jfs/ioctl.c
index fc82eccf408a..a1f8e375ad21 100644
--- a/fs/jfs/ioctl.c
+++ b/fs/jfs/ioctl.c
@@ -117,3 +117,21 @@ long jfs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
         }
 }
 
+#ifdef CONFIG_COMPAT
+long jfs_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+{
+        /* While these ioctl numbers defined with 'long' and have different
+         * numbers than the 64bit ABI,
+         * the actual implementation only deals with ints and is compatible.
+         */
+        switch (cmd) {
+        case JFS_IOC_GETFLAGS32:
+                cmd = JFS_IOC_GETFLAGS;
+                break;
+        case JFS_IOC_SETFLAGS32:
+                cmd = JFS_IOC_SETFLAGS;
+                break;
+        }
+        return jfs_ioctl(filp, cmd, arg);
+}
+#endif