diff --git a/sys/kern/vfs_extattr.c b/sys/kern/vfs_extattr.c
index 1244e5470766..8fcb651fe5d0 100644
--- a/sys/kern/vfs_extattr.c
+++ b/sys/kern/vfs_extattr.c
@@ -41,7 +41,6 @@
 
 /* For 4.3 integer FS ID compatibility */
 #include "opt_compat.h"
-#include "opt_ffs.h"
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -92,6 +91,7 @@ static int vfs_nmount(struct thread *td, int, struct uio *);
 static int	usermount = 0;	/* if 1, non-root can mount fs. */
 
 int (*union_dircheckp)(struct thread *td, struct vnode **, struct file *);
+int (*softdep_fsync_hook)(struct vnode *);
 
 SYSCTL_INT(_vfs, OID_AUTO, usermount, CTLFLAG_RW, &usermount, 0, "");
 
@@ -3486,10 +3486,9 @@ fsync(td, uap)
 		vm_object_page_clean(obj, 0, 0, 0);
 	}
 	error = VOP_FSYNC(vp, fp->f_cred, MNT_WAIT, td);
-#ifdef SOFTUPDATES
-	if (error == 0 && vp->v_mount && (vp->v_mount->mnt_flag & MNT_SOFTDEP))
-	    error = softdep_fsync(vp);
-#endif
+	if (error == 0 && vp->v_mount && (vp->v_mount->mnt_flag & MNT_SOFTDEP)
+	    && softdep_fsync_hook != NULL)
+		error = (*softdep_fsync_hook)(vp);
 
 	VOP_UNLOCK(vp, 0, td);
 	vn_finished_write(mp);
diff --git a/sys/kern/vfs_subr.c b/sys/kern/vfs_subr.c
index 6aaaa30a6d26..a20e637e146d 100644
--- a/sys/kern/vfs_subr.c
+++ b/sys/kern/vfs_subr.c
@@ -43,7 +43,6 @@
  * External virtual filesystem routines
  */
 #include "opt_ddb.h"
-#include "opt_ffs.h"
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -236,6 +235,9 @@ static int vnlru_nowhere;
 SYSCTL_INT(_debug, OID_AUTO, vnlru_nowhere, CTLFLAG_RW, &vnlru_nowhere, 0,
     "Number of times the vnlru process ran without success");
 
+/* Hook for calling soft updates */
+int (*softdep_process_worklist_hook)(struct mount *);
+
 #ifdef DEBUG_VFS_LOCKS
 /* Print lock violations */
 int vfs_badlock_print = 1;
@@ -1383,9 +1385,8 @@ sched_sync(void)
 		/*
 		 * Do soft update processing.
 		 */
-#ifdef SOFTUPDATES
-		softdep_process_worklist(NULL);
-#endif
+		if (softdep_process_worklist_hook != NULL)
+			(*softdep_process_worklist_hook)(NULL);
 
 		/*
 		 * The variable rushjob allows the kernel to speed up the
diff --git a/sys/kern/vfs_syscalls.c b/sys/kern/vfs_syscalls.c
index 1244e5470766..8fcb651fe5d0 100644
--- a/sys/kern/vfs_syscalls.c
+++ b/sys/kern/vfs_syscalls.c
@@ -41,7 +41,6 @@
 
 /* For 4.3 integer FS ID compatibility */
 #include "opt_compat.h"
-#include "opt_ffs.h"
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -92,6 +91,7 @@ static int vfs_nmount(struct thread *td, int, struct uio *);
 static int	usermount = 0;	/* if 1, non-root can mount fs. */
 
 int (*union_dircheckp)(struct thread *td, struct vnode **, struct file *);
+int (*softdep_fsync_hook)(struct vnode *);
 
 SYSCTL_INT(_vfs, OID_AUTO, usermount, CTLFLAG_RW, &usermount, 0, "");
 
@@ -3486,10 +3486,9 @@ fsync(td, uap)
 		vm_object_page_clean(obj, 0, 0, 0);
 	}
 	error = VOP_FSYNC(vp, fp->f_cred, MNT_WAIT, td);
-#ifdef SOFTUPDATES
-	if (error == 0 && vp->v_mount && (vp->v_mount->mnt_flag & MNT_SOFTDEP))
-	    error = softdep_fsync(vp);
-#endif
+	if (error == 0 && vp->v_mount && (vp->v_mount->mnt_flag & MNT_SOFTDEP)
+	    && softdep_fsync_hook != NULL)
+		error = (*softdep_fsync_hook)(vp);
 
 	VOP_UNLOCK(vp, 0, td);
 	vn_finished_write(mp);
diff --git a/sys/sys/vnode.h b/sys/sys/vnode.h
index 0bace92f1b9c..70331a8bf007 100644
--- a/sys/sys/vnode.h
+++ b/sys/sys/vnode.h
@@ -579,6 +579,8 @@ struct vattr;
 struct vnode;
 
 extern int	(*lease_check_hook)(struct vop_lease_args *);
+extern int	(*softdep_fsync_hook)(struct vnode *);
+extern int	(*softdep_process_worklist_hook)(struct mount *);
 
 struct	vnode *addaliasu(struct vnode *vp, udev_t nvp_rdev);
 int	bdevvp(dev_t dev, struct vnode **vpp);
diff --git a/sys/ufs/ffs/ffs_softdep.c b/sys/ufs/ffs/ffs_softdep.c
index 4921344f4578..f03615099af9 100644
--- a/sys/ufs/ffs/ffs_softdep.c
+++ b/sys/ufs/ffs/ffs_softdep.c
@@ -1123,6 +1123,10 @@ softdep_initialize()
 	newblk_hashtbl = hashinit(64, M_NEWBLK, &newblk_hash);
 	sema_init(&newblk_in_progress, "newblk", PRIBIO, 0);
 
+	/* hooks through which the main kernel code calls us */
+	softdep_process_worklist_hook = softdep_process_worklist;
+	softdep_fsync_hook = softdep_fsync;
+
 	/* initialise bioops hack */
 	bioops.io_start = softdep_disk_io_initiation;
 	bioops.io_complete = softdep_disk_write_complete;
@@ -1139,6 +1143,8 @@ void
 softdep_uninitialize()
 {
 
+	softdep_process_worklist_hook = NULL;
+	softdep_fsync_hook = NULL;
 	hashdestroy(pagedep_hashtbl, M_PAGEDEP, pagedep_hash);
 	hashdestroy(inodedep_hashtbl, M_INODEDEP, inodedep_hash);
 	hashdestroy(newblk_hashtbl, M_NEWBLK, newblk_hash);