diff --git a/module/os/freebsd/zfs/zfs_vfsops.c b/module/os/freebsd/zfs/zfs_vfsops.c
index cb46a9143..c53430935 100644
--- a/module/os/freebsd/zfs/zfs_vfsops.c
+++ b/module/os/freebsd/zfs/zfs_vfsops.c
@@ -846,6 +846,10 @@ zfsvfs_init(zfsvfs_t *zfsvfs, objset_t *os)
 		    &sa_obj);
 		if (error != 0)
 			return (error);
+
+		error = zfs_get_zplprop(os, ZFS_PROP_XATTR, &val);
+		if (error == 0 && val == ZFS_XATTR_SA)
+			zfsvfs->z_xattr_sa = B_TRUE;
 	}
 
 	error = sa_setup(os, sa_obj, zfs_attr_table, ZPL_END,
diff --git a/module/os/freebsd/zfs/zfs_vnops_os.c b/module/os/freebsd/zfs/zfs_vnops_os.c
index 8205e82dc..a18ac21dc 100644
--- a/module/os/freebsd/zfs/zfs_vnops_os.c
+++ b/module/os/freebsd/zfs/zfs_vnops_os.c
@@ -5301,6 +5301,29 @@ zfs_create_attrname(int attrnamespace, const char *name, char *attrname,
 	return (0);
 }
 
+static int
+zfs_ensure_xattr_cached(znode_t *zp)
+{
+	int error = 0;
+
+	ASSERT(RW_LOCK_HELD(&zp->z_xattr_lock));
+
+	if (zp->z_xattr_cached != NULL)
+		return (0);
+
+	if (rw_write_held(&zp->z_xattr_lock))
+		return (zfs_sa_get_xattr(zp));
+
+	if (!rw_tryupgrade(&zp->z_xattr_lock)) {
+		rw_exit(&zp->z_xattr_lock);
+		rw_enter(&zp->z_xattr_lock, RW_WRITER);
+	}
+	if (zp->z_xattr_cached == NULL)
+		error = zfs_sa_get_xattr(zp);
+	rw_downgrade(&zp->z_xattr_lock);
+	return (error);
+}
+
 #ifndef _SYS_SYSPROTO_H_
 struct vop_getextattr {
 	IN struct vnode *a_vp;
@@ -5313,26 +5336,85 @@ struct vop_getextattr {
 };
 #endif
 
-/*
- * Vnode operating to retrieve a named extended attribute.
- */
 static int
-zfs_getextattr(struct vop_getextattr_args *ap)
+zfs_getextattr_dir(struct vop_getextattr_args *ap, const char *attrname)
 {
-	zfsvfs_t *zfsvfs = VTOZ(ap->a_vp)->z_zfsvfs;
 	struct thread *td = ap->a_td;
 	struct nameidata nd;
-	char attrname[255];
 	struct vattr va;
 	vnode_t *xvp = NULL, *vp;
 	int error, flags;
 
+	error = zfs_lookup(ap->a_vp, NULL, &xvp, NULL, 0, ap->a_cred, td,
+	    LOOKUP_XATTR, B_FALSE);
+	if (error != 0)
+		return (error);
+
+	flags = FREAD;
+	NDINIT_ATVP(&nd, LOOKUP, NOFOLLOW, UIO_SYSSPACE, attrname,
+	    xvp, td);
+	error = vn_open_cred(&nd, &flags, 0, VN_OPEN_INVFS, ap->a_cred, NULL);
+	vp = nd.ni_vp;
+	NDFREE(&nd, NDF_ONLY_PNBUF);
+	if (error != 0)
+		return (error);
+
+	if (ap->a_size != NULL) {
+		error = VOP_GETATTR(vp, &va, ap->a_cred);
+		if (error == 0)
+			*ap->a_size = (size_t)va.va_size;
+	} else if (ap->a_uio != NULL)
+		error = VOP_READ(vp, ap->a_uio, IO_UNIT, ap->a_cred);
+
+	VOP_UNLOCK1(vp);
+	vn_close(vp, flags, ap->a_cred, td);
+	return (error);
+}
+
+static int
+zfs_getextattr_sa(struct vop_getextattr_args *ap, const char *attrname)
+{
+	znode_t *zp = VTOZ(ap->a_vp);
+	uchar_t *nv_value;
+	uint_t nv_size;
+	int error;
+
+	error = zfs_ensure_xattr_cached(zp);
+	if (error != 0)
+		return (error);
+
+	ASSERT(RW_LOCK_HELD(&zp->z_xattr_lock));
+	ASSERT3P(zp->z_xattr_cached, !=, NULL);
+
+	error = nvlist_lookup_byte_array(zp->z_xattr_cached, attrname,
+	    &nv_value, &nv_size);
+	if (error)
+		return (error);
+
+	if (ap->a_size != NULL)
+		*ap->a_size = nv_size;
+	else if (ap->a_uio != NULL)
+		error = uiomove(nv_value, nv_size, ap->a_uio);
+
+	return (error);
+}
+
+/*
+ * Vnode operation to retrieve a named extended attribute.
+ */
+static int
+zfs_getextattr(struct vop_getextattr_args *ap)
+{
+	znode_t *zp = VTOZ(ap->a_vp);
+	zfsvfs_t *zfsvfs = ZTOZSB(zp);
+	char attrname[EXTATTR_MAXNAMELEN+1];
+	int error;
+
 	/*
 	 * If the xattr property is off, refuse the request.
 	 */
-	if (!(zfsvfs->z_flags & ZSB_XATTR)) {
+	if (!(zfsvfs->z_flags & ZSB_XATTR))
 		return (SET_ERROR(EOPNOTSUPP));
-	}
 
 	error = extattr_check_cred(ap->a_vp, ap->a_attrnamespace,
 	    ap->a_cred, ap->a_td, VREAD);
@@ -5344,38 +5426,18 @@ zfs_getextattr(struct vop_getextattr_args *ap)
 	if (error != 0)
 		return (error);
 
+	error = ENOENT;
 	ZFS_ENTER(zfsvfs);
-
-	error = zfs_lookup(ap->a_vp, NULL, &xvp, NULL, 0, ap->a_cred, td,
-	    LOOKUP_XATTR, B_FALSE);
-	if (error != 0) {
-		ZFS_EXIT(zfsvfs);
-		return (error);
-	}
-
-	flags = FREAD;
-	NDINIT_ATVP(&nd, LOOKUP, NOFOLLOW, UIO_SYSSPACE, attrname,
-	    xvp, td);
-	error = vn_open_cred(&nd, &flags, 0, VN_OPEN_INVFS, ap->a_cred, NULL);
-	vp = nd.ni_vp;
-	NDFREE(&nd, NDF_ONLY_PNBUF);
-	if (error != 0) {
-		ZFS_EXIT(zfsvfs);
-		if (error == ENOENT)
-			error = ENOATTR;
-		return (error);
-	}
-
-	if (ap->a_size != NULL) {
-		error = VOP_GETATTR(vp, &va, ap->a_cred);
-		if (error == 0)
-			*ap->a_size = (size_t)va.va_size;
-	} else if (ap->a_uio != NULL)
-		error = VOP_READ(vp, ap->a_uio, IO_UNIT, ap->a_cred);
-
-	VOP_UNLOCK1(vp);
-	vn_close(vp, flags, ap->a_cred, td);
+	ZFS_VERIFY_ZP(zp)
+	rw_enter(&zp->z_xattr_lock, RW_READER);
+	if (zfsvfs->z_use_sa && zp->z_is_sa)
+		error = zfs_getextattr_sa(ap, attrname);
+	if (error == ENOENT)
+		error = zfs_getextattr_dir(ap, attrname);
+	rw_exit(&zp->z_xattr_lock);
 	ZFS_EXIT(zfsvfs);
+	if (error == ENOENT)
+		error = SET_ERROR(ENOATTR);
 	return (error);
 }
 
@@ -5389,54 +5451,25 @@ struct vop_deleteextattr {
 };
 #endif
 
-/*
- * Vnode operation to remove a named attribute.
- */
 static int
-zfs_deleteextattr(struct vop_deleteextattr_args *ap)
+zfs_deleteextattr_dir(struct vop_deleteextattr_args *ap, const char *attrname)
 {
-	zfsvfs_t *zfsvfs = VTOZ(ap->a_vp)->z_zfsvfs;
 	struct thread *td = ap->a_td;
 	struct nameidata nd;
-	char attrname[255];
 	vnode_t *xvp = NULL, *vp;
 	int error;
 
-	/*
-	 * If the xattr property is off, refuse the request.
-	 */
-	if (!(zfsvfs->z_flags & ZSB_XATTR)) {
-		return (SET_ERROR(EOPNOTSUPP));
-	}
-
-	error = extattr_check_cred(ap->a_vp, ap->a_attrnamespace,
-	    ap->a_cred, ap->a_td, VWRITE);
-	if (error != 0)
-		return (error);
-
-	error = zfs_create_attrname(ap->a_attrnamespace, ap->a_name, attrname,
-	    sizeof (attrname));
-	if (error != 0)
-		return (error);
-
-	ZFS_ENTER(zfsvfs);
-
 	error = zfs_lookup(ap->a_vp, NULL, &xvp, NULL, 0, ap->a_cred, td,
 	    LOOKUP_XATTR, B_FALSE);
-	if (error != 0) {
-		ZFS_EXIT(zfsvfs);
+	if (error != 0)
 		return (error);
-	}
 
 	NDINIT_ATVP(&nd, DELETE, NOFOLLOW | LOCKPARENT | LOCKLEAF,
 	    UIO_SYSSPACE, attrname, xvp, td);
 	error = namei(&nd);
 	vp = nd.ni_vp;
 	if (error != 0) {
-		ZFS_EXIT(zfsvfs);
 		NDFREE(&nd, NDF_ONLY_PNBUF);
-		if (error == ENOENT)
-			error = ENOATTR;
 		return (error);
 	}
 
@@ -5448,11 +5481,90 @@ zfs_deleteextattr(struct vop_deleteextattr_args *ap)
 		vrele(vp);
 	else
 		vput(vp);
-	ZFS_EXIT(zfsvfs);
 
 	return (error);
 }
 
+static int
+zfs_deleteextattr_sa(struct vop_deleteextattr_args *ap, const char *attrname)
+{
+	znode_t *zp = VTOZ(ap->a_vp);
+	nvlist_t *nvl;
+	int error;
+
+	error = zfs_ensure_xattr_cached(zp);
+	if (error != 0)
+		return (error);
+
+	ASSERT(RW_WRITE_HELD(&zp->z_xattr_lock));
+	ASSERT3P(zp->z_xattr_cached, !=, NULL);
+
+	nvl = zp->z_xattr_cached;
+	error = nvlist_remove(nvl, attrname, DATA_TYPE_BYTE_ARRAY);
+	if (error == 0)
+		error = zfs_sa_set_xattr(zp);
+	if (error != 0) {
+		zp->z_xattr_cached = NULL;
+		nvlist_free(nvl);
+	}
+	return (error);
+}
+
+/*
+ * Vnode operation to remove a named attribute.
+ */
+static int
+zfs_deleteextattr(struct vop_deleteextattr_args *ap)
+{
+	znode_t *zp = VTOZ(ap->a_vp);
+	zfsvfs_t *zfsvfs = ZTOZSB(zp);
+	char attrname[EXTATTR_MAXNAMELEN+1];
+	int error;
+
+	/*
+	 * If the xattr property is off, refuse the request.
+	 */
+	if (!(zfsvfs->z_flags & ZSB_XATTR))
+		return (SET_ERROR(EOPNOTSUPP));
+
+	error = extattr_check_cred(ap->a_vp, ap->a_attrnamespace,
+	    ap->a_cred, ap->a_td, VWRITE);
+	if (error != 0)
+		return (error);
+
+	error = zfs_create_attrname(ap->a_attrnamespace, ap->a_name, attrname,
+	    sizeof (attrname));
+	if (error != 0)
+		return (error);
+
+	size_t size = 0;
+	struct vop_getextattr_args vga = {
+		.a_vp = ap->a_vp,
+		.a_size = &size,
+		.a_cred = ap->a_cred,
+		.a_td = ap->a_td,
+	};
+	error = ENOENT;
+	ZFS_ENTER(zfsvfs);
+	ZFS_VERIFY_ZP(zp);
+	rw_enter(&zp->z_xattr_lock, RW_WRITER);
+	if (zfsvfs->z_use_sa && zp->z_is_sa) {
+		error = zfs_getextattr_sa(&vga, attrname);
+		if (error == 0)
+			error = zfs_deleteextattr_sa(ap, attrname);
+	}
+	if (error == ENOENT) {
+		error = zfs_getextattr_dir(&vga, attrname);
+		if (error == 0)
+			error = zfs_deleteextattr_dir(ap, attrname);
+	}
+	rw_exit(&zp->z_xattr_lock);
+	ZFS_EXIT(zfsvfs);
+	if (error == ENOENT)
+		error = SET_ERROR(ENOATTR);
+	return (error);
+}
+
 #ifndef _SYS_SYSPROTO_H_
 struct vop_setextattr {
 	IN struct vnode *a_vp;
@@ -5464,56 +5576,28 @@ struct vop_setextattr {
 };
 #endif
 
-/*
- * Vnode operation to set a named attribute.
- */
 static int
-zfs_setextattr(struct vop_setextattr_args *ap)
+zfs_setextattr_dir(struct vop_setextattr_args *ap, const char *attrname)
 {
-	zfsvfs_t *zfsvfs = VTOZ(ap->a_vp)->z_zfsvfs;
 	struct thread *td = ap->a_td;
 	struct nameidata nd;
-	char attrname[255];
 	struct vattr va;
 	vnode_t *xvp = NULL, *vp;
 	int error, flags;
 
-	/*
-	 * If the xattr property is off, refuse the request.
-	 */
-	if (!(zfsvfs->z_flags & ZSB_XATTR)) {
-		return (SET_ERROR(EOPNOTSUPP));
-	}
-
-	error = extattr_check_cred(ap->a_vp, ap->a_attrnamespace,
-	    ap->a_cred, ap->a_td, VWRITE);
-	if (error != 0)
-		return (error);
-	error = zfs_create_attrname(ap->a_attrnamespace, ap->a_name, attrname,
-	    sizeof (attrname));
-	if (error != 0)
-		return (error);
-
-	ZFS_ENTER(zfsvfs);
-
 	error = zfs_lookup(ap->a_vp, NULL, &xvp, NULL, 0, ap->a_cred, td,
 	    LOOKUP_XATTR | CREATE_XATTR_DIR, B_FALSE);
-	if (error != 0) {
-		ZFS_EXIT(zfsvfs);
+	if (error != 0)
 		return (error);
-	}
 
 	flags = FFLAGS(O_WRONLY | O_CREAT);
-	NDINIT_ATVP(&nd, LOOKUP, NOFOLLOW, UIO_SYSSPACE, attrname,
-	    xvp, td);
+	NDINIT_ATVP(&nd, LOOKUP, NOFOLLOW, UIO_SYSSPACE, attrname, xvp, td);
 	error = vn_open_cred(&nd, &flags, 0600, VN_OPEN_INVFS, ap->a_cred,
 	    NULL);
 	vp = nd.ni_vp;
 	NDFREE(&nd, NDF_ONLY_PNBUF);
-	if (error != 0) {
-		ZFS_EXIT(zfsvfs);
+	if (error != 0)
 		return (error);
-	}
 
 	VATTR_NULL(&va);
 	va.va_size = 0;
@@ -5523,6 +5607,102 @@ zfs_setextattr(struct vop_setextattr_args *ap)
 
 	VOP_UNLOCK1(vp);
 	vn_close(vp, flags, ap->a_cred, td);
+	return (error);
+}
+
+static int
+zfs_setextattr_sa(struct vop_setextattr_args *ap, const char *attrname)
+{
+	znode_t *zp = VTOZ(ap->a_vp);
+	nvlist_t *nvl;
+	size_t sa_size;
+	int error;
+
+	error = zfs_ensure_xattr_cached(zp);
+	if (error != 0)
+		return (error);
+
+	ASSERT(RW_WRITE_HELD(&zp->z_xattr_lock));
+	ASSERT3P(zp->z_xattr_cached, !=, NULL);
+
+	nvl = zp->z_xattr_cached;
+	size_t entry_size = ap->a_uio->uio_resid;
+	if (entry_size > DXATTR_MAX_ENTRY_SIZE)
+		return (SET_ERROR(EFBIG));
+	error = nvlist_size(nvl, &sa_size, NV_ENCODE_XDR);
+	if (error != 0)
+		return (error);
+	if (sa_size > DXATTR_MAX_SA_SIZE)
+		return (SET_ERROR(EFBIG));
+	uchar_t *buf = kmem_alloc(entry_size, KM_SLEEP);
+	error = uiomove(buf, entry_size, ap->a_uio);
+	if (error == 0)
+		error = nvlist_add_byte_array(nvl, attrname, buf, entry_size);
+	kmem_free(buf, entry_size);
+	if (error == 0)
+		error = zfs_sa_set_xattr(zp);
+	if (error != 0) {
+		zp->z_xattr_cached = NULL;
+		nvlist_free(nvl);
+	}
+	return (error);
+}
+
+/*
+ * Vnode operation to set a named attribute.
+ */
+static int
+zfs_setextattr(struct vop_setextattr_args *ap)
+{
+	znode_t *zp = VTOZ(ap->a_vp);
+	zfsvfs_t *zfsvfs = ZTOZSB(zp);
+	char attrname[EXTATTR_MAXNAMELEN+1];
+	int error;
+
+	/*
+	 * If the xattr property is off, refuse the request.
+	 */
+	if (!(zfsvfs->z_flags & ZSB_XATTR))
+		return (SET_ERROR(EOPNOTSUPP));
+
+	error = extattr_check_cred(ap->a_vp, ap->a_attrnamespace,
+	    ap->a_cred, ap->a_td, VWRITE);
+	if (error != 0)
+		return (error);
+
+	error = zfs_create_attrname(ap->a_attrnamespace, ap->a_name, attrname,
+	    sizeof (attrname));
+	if (error != 0)
+		return (error);
+
+	struct vop_deleteextattr_args vda = {
+		.a_vp = ap->a_vp,
+		.a_cred = ap->a_cred,
+		.a_td = ap->a_td,
+	};
+	error = ENOENT;
+	ZFS_ENTER(zfsvfs);
+	ZFS_VERIFY_ZP(zp);
+	rw_enter(&zp->z_xattr_lock, RW_WRITER);
+	if (zfsvfs->z_use_sa && zp->z_is_sa && zfsvfs->z_xattr_sa) {
+		error = zfs_setextattr_sa(ap, attrname);
+		if (error == 0)
+			/*
+			 * Successfully put into SA, we need to clear the one
+			 * in dir if present.
+			 */
+			zfs_deleteextattr_dir(&vda, attrname);
+	}
+	if (error) {
+		error = zfs_setextattr_dir(ap, attrname);
+		if (error == 0)
+			/*
+			 * Successfully put into dir, we need to clear the one
+			 * in SA if present.
+			 */
+			zfs_deleteextattr_sa(&vda, attrname);
+	}
+	rw_exit(&zp->z_xattr_lock);
 	ZFS_EXIT(zfsvfs);
 	return (error);
 }
@@ -5538,55 +5718,20 @@ struct vop_listextattr {
 };
 #endif
 
-/*
- * Vnode operation to retrieve extended attributes on a vnode.
- */
 static int
-zfs_listextattr(struct vop_listextattr_args *ap)
+zfs_listextattr_dir(struct vop_listextattr_args *ap, const char *attrprefix)
 {
-	zfsvfs_t *zfsvfs = VTOZ(ap->a_vp)->z_zfsvfs;
 	struct thread *td = ap->a_td;
 	struct nameidata nd;
-	char attrprefix[16];
 	uint8_t dirbuf[sizeof (struct dirent)];
-	struct dirent *dp;
 	struct iovec aiov;
 	struct uio auio;
-	size_t *sizep = ap->a_size;
-	size_t plen;
 	vnode_t *xvp = NULL, *vp;
-	int done, error, eof, pos;
-	zfs_uio_t uio;
-
-	zfs_uio_init(&uio, ap->a_uio);
-
-	/*
-	 * If the xattr property is off, refuse the request.
-	 */
-	if (!(zfsvfs->z_flags & ZSB_XATTR)) {
-		return (SET_ERROR(EOPNOTSUPP));
-	}
-
-	error = extattr_check_cred(ap->a_vp, ap->a_attrnamespace,
-	    ap->a_cred, ap->a_td, VREAD);
-	if (error != 0)
-		return (error);
-
-	error = zfs_create_attrname(ap->a_attrnamespace, "", attrprefix,
-	    sizeof (attrprefix));
-	if (error != 0)
-		return (error);
-	plen = strlen(attrprefix);
-
-	ZFS_ENTER(zfsvfs);
-
-	if (sizep != NULL)
-		*sizep = 0;
+	int error, eof;
 
 	error = zfs_lookup(ap->a_vp, NULL, &xvp, NULL, 0, ap->a_cred, td,
 	    LOOKUP_XATTR, B_FALSE);
 	if (error != 0) {
-		ZFS_EXIT(zfsvfs);
 		/*
 		 * ENOATTR means that the EA directory does not yet exist,
 		 * i.e. there are no extended attributes there.
@@ -5601,10 +5746,8 @@ zfs_listextattr(struct vop_listextattr_args *ap)
 	error = namei(&nd);
 	vp = nd.ni_vp;
 	NDFREE(&nd, NDF_ONLY_PNBUF);
-	if (error != 0) {
-		ZFS_EXIT(zfsvfs);
+	if (error != 0)
 		return (error);
-	}
 
 	auio.uio_iov = &aiov;
 	auio.uio_iovcnt = 1;
@@ -5613,18 +5756,18 @@ zfs_listextattr(struct vop_listextattr_args *ap)
 	auio.uio_rw = UIO_READ;
 	auio.uio_offset = 0;
 
-	do {
-		uint8_t nlen;
+	size_t plen = strlen(attrprefix);
 
+	do {
 		aiov.iov_base = (void *)dirbuf;
 		aiov.iov_len = sizeof (dirbuf);
 		auio.uio_resid = sizeof (dirbuf);
 		error = VOP_READDIR(vp, &auio, ap->a_cred, &eof, NULL, NULL);
-		done = sizeof (dirbuf) - auio.uio_resid;
 		if (error != 0)
 			break;
-		for (pos = 0; pos < done; ) {
-			dp = (struct dirent *)(dirbuf + pos);
+		int done = sizeof (dirbuf) - auio.uio_resid;
+		for (int pos = 0; pos < done; ) {
+			struct dirent *dp = (struct dirent *)(dirbuf + pos);
 			pos += dp->d_reclen;
 			/*
 			 * XXX: Temporarily we also accept DT_UNKNOWN, as this
@@ -5632,24 +5775,23 @@ zfs_listextattr(struct vop_listextattr_args *ap)
 			 */
 			if (dp->d_type != DT_REG && dp->d_type != DT_UNKNOWN)
 				continue;
-			if (plen == 0 &&
+			else if (plen == 0 &&
 			    strncmp(dp->d_name, "freebsd:", 8) == 0)
 				continue;
 			else if (strncmp(dp->d_name, attrprefix, plen) != 0)
 				continue;
-			nlen = dp->d_namlen - plen;
-			if (sizep != NULL)
-				*sizep += 1 + nlen;
-			else if (GET_UIO_STRUCT(&uio) != NULL) {
+			uint8_t nlen = dp->d_namlen - plen;
+			if (ap->a_size != NULL) {
+				*ap->a_size += 1 + nlen;
+			} else if (ap->a_uio != NULL) {
 				/*
 				 * Format of extattr name entry is one byte for
 				 * length and the rest for name.
 				 */
-				error = zfs_uiomove(&nlen, 1, zfs_uio_rw(&uio),
-				    &uio);
+				error = uiomove(&nlen, 1, ap->a_uio);
 				if (error == 0) {
-					error = zfs_uiomove(dp->d_name + plen,
-					    nlen, zfs_uio_rw(&uio), &uio);
+					char *namep = dp->d_name + plen;
+					error = uiomove(namep, nlen, ap->a_uio);
 				}
 				if (error != 0)
 					break;
@@ -5658,8 +5800,92 @@ zfs_listextattr(struct vop_listextattr_args *ap)
 	} while (!eof && error == 0);
 
 	vput(vp);
-	ZFS_EXIT(zfsvfs);
+	return (error);
+}
 
+static int
+zfs_listextattr_sa(struct vop_listextattr_args *ap, const char *attrprefix)
+{
+	znode_t *zp = VTOZ(ap->a_vp);
+	int error;
+
+	error = zfs_ensure_xattr_cached(zp);
+	if (error != 0)
+		return (error);
+
+	ASSERT(RW_LOCK_HELD(&zp->z_xattr_lock));
+	ASSERT3P(zp->z_xattr_cached, !=, NULL);
+
+	size_t plen = strlen(attrprefix);
+	nvpair_t *nvp = NULL;
+	while ((nvp = nvlist_next_nvpair(zp->z_xattr_cached, nvp)) != NULL) {
+		ASSERT3U(nvpair_type(nvp), ==, DATA_TYPE_BYTE_ARRAY);
+
+		const char *name = nvpair_name(nvp);
+		if (plen == 0 && strncmp(name, "freebsd:", 8) == 0)
+			continue;
+		else if (strncmp(name, attrprefix, plen) != 0)
+			continue;
+		uint8_t nlen = strlen(name) - plen;
+		if (ap->a_size != NULL) {
+			*ap->a_size += 1 + nlen;
+		} else if (ap->a_uio != NULL) {
+			/*
+			 * Format of extattr name entry is one byte for
+			 * length and the rest for name.
+			 */
+			error = uiomove(&nlen, 1, ap->a_uio);
+			if (error == 0) {
+				char *namep = __DECONST(char *, name) + plen;
+				error = uiomove(namep, nlen, ap->a_uio);
+			}
+			if (error != 0)
+				break;
+		}
+	}
+
+	return (error);
+}
+
+/*
+ * Vnode operation to retrieve extended attributes on a vnode.
+ */
+static int
+zfs_listextattr(struct vop_listextattr_args *ap)
+{
+	znode_t *zp = VTOZ(ap->a_vp);
+	zfsvfs_t *zfsvfs = ZTOZSB(zp);
+	char attrprefix[16];
+	int error;
+
+	if (ap->a_size != NULL)
+		*ap->a_size = 0;
+
+	/*
+	 * If the xattr property is off, refuse the request.
+	 */
+	if (!(zfsvfs->z_flags & ZSB_XATTR))
+		return (SET_ERROR(EOPNOTSUPP));
+
+	error = extattr_check_cred(ap->a_vp, ap->a_attrnamespace,
+	    ap->a_cred, ap->a_td, VREAD);
+	if (error != 0)
+		return (error);
+
+	error = zfs_create_attrname(ap->a_attrnamespace, "", attrprefix,
+	    sizeof (attrprefix));
+	if (error != 0)
+		return (error);
+
+	ZFS_ENTER(zfsvfs);
+	ZFS_VERIFY_ZP(zp);
+	rw_enter(&zp->z_xattr_lock, RW_READER);
+	if (zfsvfs->z_use_sa && zp->z_is_sa)
+		error = zfs_listextattr_sa(ap, attrprefix);
+	if (error == 0)
+		error = zfs_listextattr_dir(ap, attrprefix);
+	rw_exit(&zp->z_xattr_lock);
+	ZFS_EXIT(zfsvfs);
 	return (error);
 }
 
diff --git a/module/os/freebsd/zfs/zfs_znode.c b/module/os/freebsd/zfs/zfs_znode.c
index d6824f873..85f71f99e 100644
--- a/module/os/freebsd/zfs/zfs_znode.c
+++ b/module/os/freebsd/zfs/zfs_znode.c
@@ -145,10 +145,13 @@ zfs_znode_cache_constructor(void *buf, void *arg, int kmflags)
 
 	mutex_init(&zp->z_lock, NULL, MUTEX_DEFAULT, NULL);
 	mutex_init(&zp->z_acl_lock, NULL, MUTEX_DEFAULT, NULL);
+	rw_init(&zp->z_xattr_lock, NULL, RW_DEFAULT, NULL);
 
 	zfs_rangelock_init(&zp->z_rangelock, zfs_rangelock_cb, zp);
 
 	zp->z_acl_cached = NULL;
+	zp->z_xattr_cached = NULL;
+	zp->z_xattr_parent = 0;
 	zp->z_vnode = NULL;
 	return (0);
 }
@@ -164,9 +167,11 @@ zfs_znode_cache_destructor(void *buf, void *arg)
 	ASSERT(!list_link_active(&zp->z_link_node));
 	mutex_destroy(&zp->z_lock);
 	mutex_destroy(&zp->z_acl_lock);
+	rw_destroy(&zp->z_xattr_lock);
 	zfs_rangelock_fini(&zp->z_rangelock);
 
 	ASSERT3P(zp->z_acl_cached, ==, NULL);
+	ASSERT3P(zp->z_xattr_cached, ==, NULL);
 }
 
 
@@ -211,7 +216,10 @@ zfs_znode_alloc_kmem(int flags)
 static void
 zfs_znode_free_kmem(znode_t *zp)
 {
-
+	if (zp->z_xattr_cached) {
+		nvlist_free(zp->z_xattr_cached);
+		zp->z_xattr_cached = NULL;
+	}
 	uma_zfree_smr(znode_uma_zone, zp);
 }
 #else
@@ -237,7 +245,10 @@ zfs_znode_alloc_kmem(int flags)
 static void
 zfs_znode_free_kmem(znode_t *zp)
 {
-
+	if (zp->z_xattr_cached) {
+		nvlist_free(zp->z_xattr_cached);
+		zp->z_xattr_cached = NULL;
+	}
 	kmem_cache_free(znode_cache, zp);
 }
 #endif
@@ -1083,8 +1094,15 @@ zfs_rezget(znode_t *zp)
 		zfs_acl_free(zp->z_acl_cached);
 		zp->z_acl_cached = NULL;
 	}
-
 	mutex_exit(&zp->z_acl_lock);
+
+	rw_enter(&zp->z_xattr_lock, RW_WRITER);
+	if (zp->z_xattr_cached) {
+		nvlist_free(zp->z_xattr_cached);
+		zp->z_xattr_cached = NULL;
+	}
+	rw_exit(&zp->z_xattr_lock);
+
 	ASSERT3P(zp->z_sa_hdl, ==, NULL);
 	err = sa_buf_hold(zfsvfs->z_os, obj_num, NULL, &db);
 	if (err) {