Index: sys/kern/vfs_extattr.c
===================================================================
--- sys/kern/vfs_extattr.c
+++ sys/kern/vfs_extattr.c
@@ -155,9 +155,9 @@
  * Locks: none
  * References: vp must be a valid reference for the duration of the call
  */
-static int
+int
 extattr_set_vp(struct vnode *vp, int attrnamespace, const char *attrname,
-    void *data, size_t nbytes, struct thread *td)
+    void *data, size_t nbytes, enum uio_seg segflg, struct thread *td)
 {
 	struct mount *mp;
 	struct uio auio;
@@ -181,7 +181,7 @@
 	}
 	auio.uio_resid = nbytes;
 	auio.uio_rw = UIO_WRITE;
-	auio.uio_segflg = UIO_USERSPACE;
+	auio.uio_segflg = segflg;
 	auio.uio_td = td;
 	cnt = nbytes;
 
@@ -232,7 +232,7 @@
 		return (error);
 
 	error = extattr_set_vp(fp->f_vnode, uap->attrnamespace,
-	    attrname, uap->data, uap->nbytes, td);
+	    attrname, uap->data, uap->nbytes, UIO_USERSPACE, td);
 	fdrop(fp, td);
 
 	return (error);
@@ -267,7 +267,7 @@
 	NDFREE(&nd, NDF_ONLY_PNBUF);
 
 	error = extattr_set_vp(nd.ni_vp, uap->attrnamespace, attrname,
-	    uap->data, uap->nbytes, td);
+	    uap->data, uap->nbytes, UIO_USERSPACE, td);
 
 	vrele(nd.ni_vp);
 	return (error);
@@ -302,7 +302,7 @@
 	NDFREE(&nd, NDF_ONLY_PNBUF);
 
 	error = extattr_set_vp(nd.ni_vp, uap->attrnamespace, attrname,
-	    uap->data, uap->nbytes, td);
+	    uap->data, uap->nbytes, UIO_USERSPACE, td);
 
 	vrele(nd.ni_vp);
 	return (error);
@@ -318,9 +318,9 @@
  * Locks: none
  * References: vp must be a valid reference for the duration of the call
  */
-static int
+int
 extattr_get_vp(struct vnode *vp, int attrnamespace, const char *attrname,
-    void *data, size_t nbytes, struct thread *td)
+    void *data, size_t nbytes, enum uio_seg segflg, struct thread *td)
 {
 	struct uio auio, *auiop;
 	struct iovec aiov;
@@ -350,7 +350,7 @@
 		}
 		auio.uio_resid = nbytes;
 		auio.uio_rw = UIO_READ;
-		auio.uio_segflg = UIO_USERSPACE;
+		auio.uio_segflg = segflg;
 		auio.uio_td = td;
 		auiop = &auio;
 		cnt = nbytes;
@@ -407,7 +407,7 @@
 		return (error);
 
 	error = extattr_get_vp(fp->f_vnode, uap->attrnamespace,
-	    attrname, uap->data, uap->nbytes, td);
+	    attrname, uap->data, uap->nbytes, UIO_USERSPACE, td);
 
 	fdrop(fp, td);
 	return (error);
@@ -441,7 +441,7 @@
 	NDFREE(&nd, NDF_ONLY_PNBUF);
 
 	error = extattr_get_vp(nd.ni_vp, uap->attrnamespace, attrname,
-	    uap->data, uap->nbytes, td);
+	    uap->data, uap->nbytes, UIO_USERSPACE, td);
 
 	vrele(nd.ni_vp);
 	return (error);
@@ -476,7 +476,7 @@
 	NDFREE(&nd, NDF_ONLY_PNBUF);
 
 	error = extattr_get_vp(nd.ni_vp, uap->attrnamespace, attrname,
-	    uap->data, uap->nbytes, td);
+	    uap->data, uap->nbytes, UIO_USERSPACE, td);
 
 	vrele(nd.ni_vp);
 	return (error);
@@ -492,7 +492,7 @@
  * Locks: none
  * References: vp must be a valid reference for the duration of the call
  */
-static int
+int
 extattr_delete_vp(struct vnode *vp, int attrnamespace, const char *attrname,
     struct thread *td)
 {
@@ -626,9 +626,9 @@
  * Locks: none
  * References: vp must be a valid reference for the duration of the call
  */
-static int
+int
 extattr_list_vp(struct vnode *vp, int attrnamespace, void *data,
-    size_t nbytes, struct thread *td)
+    size_t nbytes, enum uio_seg segflg, struct thread *td)
 {
 	struct uio auio, *auiop;
 	size_t size, *sizep;
@@ -653,7 +653,7 @@
 		}
 		auio.uio_resid = nbytes;
 		auio.uio_rw = UIO_READ;
-		auio.uio_segflg = UIO_USERSPACE;
+		auio.uio_segflg = segflg;
 		auio.uio_td = td;
 		auiop = &auio;
 		cnt = nbytes;
@@ -680,7 +680,6 @@
 	return (error);
 }
 
-
 int
 sys_extattr_list_fd(td, uap)
 	struct thread *td;
@@ -703,7 +702,7 @@
 		return (error);
 
 	error = extattr_list_vp(fp->f_vnode, uap->attrnamespace, uap->data,
-	    uap->nbytes, td);
+	    uap->nbytes, UIO_USERSPACE, td);
 
 	fdrop(fp, td);
 	return (error);
@@ -730,7 +729,7 @@
 	NDFREE(&nd, NDF_ONLY_PNBUF);
 
 	error = extattr_list_vp(nd.ni_vp, uap->attrnamespace, uap->data,
-	    uap->nbytes, td);
+	    uap->nbytes, UIO_USERSPACE, td);
 
 	vrele(nd.ni_vp);
 	return (error);
@@ -758,7 +757,7 @@
 	NDFREE(&nd, NDF_ONLY_PNBUF);
 
 	error = extattr_list_vp(nd.ni_vp, uap->attrnamespace, uap->data,
-	    uap->nbytes, td);
+	    uap->nbytes, UIO_USERSPACE, td);
 
 	vrele(nd.ni_vp);
 	return (error);
Index: sys/sys/extattr.h
===================================================================
--- sys/sys/extattr.h
+++ sys/sys/extattr.h
@@ -61,6 +61,7 @@
 
 #ifdef _KERNEL
 #include <sys/types.h>
+#include <sys/uio.h>
 
 struct thread;
 struct ucred;
@@ -67,6 +68,16 @@
 struct vnode;
 int	extattr_check_cred(struct vnode *vp, int attrnamespace,
 	    struct ucred *cred, struct thread *td, accmode_t accmode);
+int	extattr_delete_vp(struct vnode *vp, int attrnamespace,
+	    const char *attrname, struct thread *td);
+int	extattr_get_vp(struct vnode *vp, int attrnamespace,
+	    const char *attrname, void *data, size_t nbytes,
+	    enum uio_seg segflg, struct thread *td);
+int	extattr_list_vp(struct vnode *vp, int attrnamespace, void *data,
+	    size_t nbytes, enum uio_seg segflg, struct thread *td);
+int	extattr_set_vp(struct vnode *vp, int attrnamespace,
+	    const char *attrname, void *data, size_t nbytes,
+	    enum uio_seg segflg, struct thread *td);
 
 #else
 #include <sys/cdefs.h>