[XFS] Cut and paste stuff up on my part in the DMAPI headers.

SGI Modid: 2.5.x-xfs:slinx:142170a

fs/xfs/xfs_dmapi.h

@@ -89,7 +89,7 @@ typedef enum {
 #define DM_EVENT_ENABLED_IO(vfsp, io, event) ( \
 	unlikely ((vfsp)->vfs_flag & VFS_DMI) && \
 		( ((io)->io_dmevmask & (1 << event)) || \
-		  ((ip)->i_mount->m_dmevmask & (1 << event)) ) \
+		  ((io)->io_mount->m_dmevmask & (1 << event)) ) \
 	)
 
 #define DM_XFS_VALID_FS_EVENTS		( \