diff --git a/xfs/Makefile b/xfs/Makefile
index ba17121..904372b 100644
--- a/xfs/Makefile
+++ b/xfs/Makefile
@@ -91,7 +91,8 @@ xfs-y				+= xfs_alloc.o \
 				   xfs_vnodeops.o \
 				   xfs_rw.o \
 				   xfs_dmops.o \
-				   xfs_qmops.o
+				   xfs_qmops.o \
+				   xfs_sysfs.o
 
 xfs-$(CONFIG_XFS_TRACE)		+= xfs_dir2_trace.o
 
diff --git a/xfs/linux-2.6/xfs_super.c b/xfs/linux-2.6/xfs_super.c
index 9eaddb4..57f2558 100644
--- a/xfs/linux-2.6/xfs_super.c
+++ b/xfs/linux-2.6/xfs_super.c
@@ -1152,6 +1152,9 @@ xfs_fs_put_super(
 	xfs_close_devices(mp);
 	xfs_qmops_put(mp);
 	xfs_dmops_put(mp);
+#ifdef CONFIG_SYSFS
+	xfs_event_release(mp);
+#endif
 	xfs_free_fsname(mp);
 	kfree(mp);
 }
@@ -1783,6 +1786,9 @@ xfs_fs_fill_super(
 	xfs_itrace_exit(XFS_I(sb->s_root->d_inode));
 
 	kfree(args);
+#ifdef CONFIG_SYSFS
+	xfs_event_alloc(mp);
+#endif
 	return 0;
 
  out_filestream_unmount:
@@ -2151,6 +2157,10 @@ init_xfs_fs(void)
 	error = register_filesystem(&xfs_fs_type);
 	if (error)
 		goto out_sysctl_unregister;
+
+#ifdef CONFIG_SYSFS
+	xfs_sysfs_init();
+#endif	
 	return 0;
 
  out_sysctl_unregister:
@@ -2184,6 +2194,9 @@ exit_xfs_fs(void)
 	xfs_free_trace_bufs();
 	xfs_destroy_zones();
 	ktrace_uninit();
+#ifdef CONFIG_SYSFS
+	xfs_sysfs_done();
+#endif	
 }
 
 module_init(init_xfs_fs);
diff --git a/xfs/xfs_mount.c b/xfs/xfs_mount.c
index a4503f5..2854b00 100644
--- a/xfs/xfs_mount.c
+++ b/xfs/xfs_mount.c
@@ -2441,3 +2441,25 @@ balance_counter:
 }
 
 #endif
+
+
+__uint64_t xfs_icsb_get_fdblocks_lazy(xfs_mount_t *mp)
+{
+        __uint64_t fdblocks = 0;
+#ifdef HAVE_PERCPU_SB
+        xfs_icsb_cnts_t *cntp;
+        int i;
+
+        for_each_online_cpu(i) {
+                cntp = (xfs_icsb_cnts_t *)per_cpu_ptr(mp->m_sb_cnts, i);
+                fdblocks += cntp->icsb_fdblocks;
+        }
+
+        if (xfs_icsb_counter_disabled(mp, XFS_SBS_FDBLOCKS))
+                fdblocks = mp->m_sb.sb_fdblocks;
+#else
+        fdblocks = mp->m_sb.sb_fdblocks;
+#endif
+        return fdblocks - XFS_ALLOC_SET_ASIDE(mp);
+}
+
diff --git a/xfs/xfs_mount.h b/xfs/xfs_mount.h
index b6b8be8..a7c17fe 100644
--- a/xfs/xfs_mount.h
+++ b/xfs/xfs_mount.h
@@ -342,6 +342,9 @@ typedef struct xfs_mount {
 	int			m_sync_seq;	/* sync thread generation no. */
 	wait_queue_head_t	m_wait_single_sync_task;
 	struct vfsmount         *m_vfsmount;
+#ifdef CONFIG_SYSFS
+	void *event_onlow;
+#endif
 } xfs_mount_t;
 
 /*
@@ -540,6 +543,13 @@ extern void	xfs_qmops_put(struct xfs_mount *);
 
 extern struct xfs_dmops xfs_dmcore_xfs;
 
+#ifdef CONFIG_SYSFS
+extern void xfs_sysfs_init(void);
+extern void xfs_sysfs_done(void);
+extern int xfs_event_alloc(struct xfs_mount *mnt);
+extern int xfs_event_release(struct xfs_mount *mnt);
+#endif
+
 #endif	/* __KERNEL__ */
 
 #endif	/* __XFS_MOUNT_H__ */