Index: sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c
===================================================================
--- sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c
@@ -5314,7 +5314,7 @@
 	vattr_init_mask(vap);
 
 	return (zfs_symlink(ap->a_dvp, ap->a_vpp, cnp->cn_nameptr, vap,
-	    ap->a_target, cnp->cn_cred, cnp->cn_thread));
+	    __DECONST(char *, ap->a_target), cnp->cn_cred, cnp->cn_thread));
 }
 
 static int
Index: sys/fs/ext2fs/ext2_vnops.c
===================================================================
--- sys/fs/ext2fs/ext2_vnops.c
+++ sys/fs/ext2fs/ext2_vnops.c
@@ -1521,8 +1521,8 @@
 		ip->i_size = len;
 		ip->i_flag |= IN_CHANGE | IN_UPDATE;
 	} else
-		error = vn_rdwr(UIO_WRITE, vp, ap->a_target, len, (off_t)0,
-		    UIO_SYSSPACE, IO_NODELOCKED | IO_NOMACCHECK,
+		error = vn_rdwr(UIO_WRITE, vp, __DECONST(void *, ap->a_target),
+		    len, (off_t)0, UIO_SYSSPACE, IO_NODELOCKED | IO_NOMACCHECK,
 		    ap->a_cnp->cn_cred, NOCRED, NULL, NULL);
 	if (error)
 		vput(vp);
Index: sys/fs/fuse/fuse_vnops.c
===================================================================
--- sys/fs/fuse/fuse_vnops.c
+++ sys/fs/fuse/fuse_vnops.c
@@ -1708,7 +1708,7 @@
 	struct vnode *dvp = ap->a_dvp;
 	struct vnode **vpp = ap->a_vpp;
 	struct componentname *cnp = ap->a_cnp;
-	char *target = ap->a_target;
+	const char *target = ap->a_target;
 
 	struct fuse_dispatcher fdi;
 
Index: sys/fs/nfs/nfs_var.h
===================================================================
--- sys/fs/nfs/nfs_var.h
+++ sys/fs/nfs/nfs_var.h
@@ -474,7 +474,7 @@
 int nfsrpc_link(vnode_t, vnode_t, char *, int,
     struct ucred *, NFSPROC_T *, struct nfsvattr *, struct nfsvattr *,
     int *, int *, void *);
-int nfsrpc_symlink(vnode_t, char *, int, char *, struct vattr *,
+int nfsrpc_symlink(vnode_t, char *, int, const char *, struct vattr *,
     struct ucred *, NFSPROC_T *, struct nfsvattr *, struct nfsvattr *,
     struct nfsfh **, int *, int *, void *);
 int nfsrpc_mkdir(vnode_t, char *, int, struct vattr *,
Index: sys/fs/nfsclient/nfs_clrpcops.c
===================================================================
--- sys/fs/nfsclient/nfs_clrpcops.c
+++ sys/fs/nfsclient/nfs_clrpcops.c
@@ -2627,7 +2627,7 @@
  * nfs symbolic link create rpc
  */
 APPLESTATIC int
-nfsrpc_symlink(vnode_t dvp, char *name, int namelen, char *target,
+nfsrpc_symlink(vnode_t dvp, char *name, int namelen, const char *target,
     struct vattr *vap, struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap,
     struct nfsvattr *nnap, struct nfsfh **nfhpp, int *attrflagp,
     int *dattrflagp, void *dstuff)
Index: sys/fs/tmpfs/tmpfs.h
===================================================================
--- sys/fs/tmpfs/tmpfs.h
+++ sys/fs/tmpfs/tmpfs.h
@@ -411,7 +411,7 @@
 void	tmpfs_ref_node_locked(struct tmpfs_node *node);
 int	tmpfs_alloc_node(struct mount *mp, struct tmpfs_mount *, enum vtype,
 	    uid_t uid, gid_t gid, mode_t mode, struct tmpfs_node *,
-	    char *, dev_t, struct tmpfs_node **);
+	    const char *, dev_t, struct tmpfs_node **);
 void	tmpfs_free_node(struct tmpfs_mount *, struct tmpfs_node *);
 bool	tmpfs_free_node_locked(struct tmpfs_mount *, struct tmpfs_node *, bool);
 void	tmpfs_free_tmp(struct tmpfs_mount *);
@@ -424,7 +424,7 @@
 	    struct vnode **);
 void	tmpfs_free_vp(struct vnode *);
 int	tmpfs_alloc_file(struct vnode *, struct vnode **, struct vattr *,
-	    struct componentname *, char *);
+	    struct componentname *, const char *);
 void	tmpfs_check_mtime(struct vnode *);
 void	tmpfs_dir_attach(struct vnode *, struct tmpfs_dirent *);
 void	tmpfs_dir_detach(struct vnode *, struct tmpfs_dirent *);
Index: sys/fs/tmpfs/tmpfs_subr.c
===================================================================
--- sys/fs/tmpfs/tmpfs_subr.c
+++ sys/fs/tmpfs/tmpfs_subr.c
@@ -182,7 +182,7 @@
 int
 tmpfs_alloc_node(struct mount *mp, struct tmpfs_mount *tmp, enum vtype type,
     uid_t uid, gid_t gid, mode_t mode, struct tmpfs_node *parent,
-    char *target, dev_t rdev, struct tmpfs_node **node)
+    const char *target, dev_t rdev, struct tmpfs_node **node)
 {
 	struct tmpfs_node *nnode;
 	vm_object_t obj;
@@ -717,7 +717,7 @@
  */
 int
 tmpfs_alloc_file(struct vnode *dvp, struct vnode **vpp, struct vattr *vap,
-    struct componentname *cnp, char *target)
+    struct componentname *cnp, const char *target)
 {
 	int error;
 	struct tmpfs_dirent *de;
Index: sys/fs/tmpfs/tmpfs_vnops.c
===================================================================
--- sys/fs/tmpfs/tmpfs_vnops.c
+++ sys/fs/tmpfs/tmpfs_vnops.c
@@ -1176,7 +1176,7 @@
 	struct vnode **vpp = v->a_vpp;
 	struct componentname *cnp = v->a_cnp;
 	struct vattr *vap = v->a_vap;
-	char *target = v->a_target;
+	const char *target = v->a_target;
 
 #ifdef notyet /* XXX FreeBSD BUG: kern_symlink is not setting VLNK */
 	MPASS(vap->va_type == VLNK);
Index: sys/kern/vnode_if.src
===================================================================
--- sys/kern/vnode_if.src
+++ sys/kern/vnode_if.src
@@ -325,7 +325,7 @@
 	OUT struct vnode **vpp;
 	IN struct componentname *cnp;
 	IN struct vattr *vap;
-	IN char *target;
+	IN const char *target;
 };
 
 
Index: sys/ufs/ufs/ufs_vnops.c
===================================================================
--- sys/ufs/ufs/ufs_vnops.c
+++ sys/ufs/ufs/ufs_vnops.c
@@ -2095,7 +2095,7 @@
 		struct vnode **a_vpp;
 		struct componentname *a_cnp;
 		struct vattr *a_vap;
-		char *a_target;
+		const char *a_target;
 	} */ *ap;
 {
 	struct vnode *vp, **vpp = ap->a_vpp;
@@ -2116,8 +2116,8 @@
 		ip->i_flag |= IN_CHANGE | IN_UPDATE;
 		error = UFS_UPDATE(vp, 0);
 	} else
-		error = vn_rdwr(UIO_WRITE, vp, ap->a_target, len, (off_t)0,
-		    UIO_SYSSPACE, IO_NODELOCKED | IO_NOMACCHECK,
+		error = vn_rdwr(UIO_WRITE, vp, __DECONST(void *, ap->a_target),
+		    len, (off_t)0, UIO_SYSSPACE, IO_NODELOCKED | IO_NOMACCHECK,
 		    ap->a_cnp->cn_cred, NOCRED, NULL, NULL);
 	if (error)
 		vput(vp);