ext4: Add EXT4_IOC_MIGRATE ioctl

The below patch add ioctl for migrating ext3 indirect block mapped inode
to ext4 extent mapped inode.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index c0e5b8cf635c..2ed7c37f897e 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -254,6 +254,9 @@ flags_err:
                 return err;
         }
 
+        case EXT4_IOC_MIGRATE:
+                return ext4_ext_migrate(inode, filp, cmd, arg);
+
         default:
                 return -ENOTTY;
         }