diff --git a/misc/Makefile b/misc/Makefile
index 6498adc..56e20ce 100644
--- a/misc/Makefile
+++ b/misc/Makefile
@@ -77,7 +77,8 @@ gpl2lgpl := error.c error.h
 
 tests := tst-dirname tst-tsearch tst-fdset tst-efgcvt tst-mntent tst-hsearch \
 	 tst-error1 tst-pselect tst-insremque tst-mntent2 bug-hsearch1 \
-	 tst-mntent-blank-corrupt tst-mntent-blank-passno bug18240
+	 tst-mntent-blank-corrupt tst-mntent-blank-passno bug18240 \
+	 tst-preadvwritev tst-preadvwritev64
 ifeq ($(run-built-tests),yes)
 tests-special += $(objpfx)tst-error1-mem.out
 endif
diff --git a/misc/tst-preadvwritev.c b/misc/tst-preadvwritev.c
new file mode 100644
index 0000000..60c7c84
--- /dev/null
+++ b/misc/tst-preadvwritev.c
@@ -0,0 +1,111 @@
+/* Tests for preadv and pwritev.
+   Copyright (C) 2016 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <sys/uio.h>
+
+/* Allow testing of the 64-bit versions as well.  */
+#ifndef PREAD
+# define PREAD pread
+# define PWRITE pwrite
+#endif
+
+static void do_prepare (void);
+static int do_test (void);
+#define PREPARE(argc, argv)     do_prepare ()
+#define TEST_FUNCTION           do_test ()
+#include "../test-skeleton.c"
+
+static char *temp_filename;
+static int temp_fd;
+
+void
+do_prepare (void)
+{
+  temp_fd = create_temp_file ("tst-preadvwritev.", &temp_filename);
+  if (temp_fd == -1)
+    {
+      printf ("cannot create temporary file: %m\n");
+      exit (1);
+    }
+}
+
+#define FAIL() \
+  do { printf ("error: failure on line %d\n", __LINE__); return 1; } while (0)
+
+int
+do_test (void)
+{
+  struct iovec iov[2];
+  ssize_t ret;
+
+  char buf1[32];
+  char buf2[64];
+
+  memset (buf1, 0x00, sizeof buf1);
+  memset (buf1, 0xca, sizeof buf1);
+
+  memset (iov, 0, sizeof iov);
+  iov[0].iov_base = buf1;
+  iov[0].iov_len = sizeof buf1;
+  iov[1].iov_base = buf2;
+  iov[1].iov_len = sizeof buf2;
+
+  ret = pwritev (temp_fd, iov, 2, 0);
+  if (ret == -1)
+    FAIL ();
+  if (ret != (sizeof buf1 + sizeof buf2))
+    FAIL ();
+
+  ret = pwritev (temp_fd, iov, 2, sizeof buf1 + sizeof buf2);
+  if (ret == -1)
+    FAIL ();
+  if (ret != (sizeof buf1 + sizeof buf2))
+    FAIL ();
+  
+  char buf3[32];
+  char buf4[64];
+
+  iov[0].iov_base = buf3;
+  iov[0].iov_len = sizeof buf3;
+  iov[1].iov_base = buf4;
+  iov[1].iov_len = sizeof buf4;
+
+  ret = preadv (temp_fd, iov, 2, 0);
+  if (ret == -1)
+    FAIL ();
+  if (ret != (sizeof buf3 + sizeof buf4))
+    FAIL ();
+
+  if (memcmp (buf1, buf3, sizeof buf1) != 0)
+    FAIL ();
+  if (memcmp (buf2, buf4, sizeof buf2) != 0)
+    FAIL ();
+
+  ret = preadv (temp_fd, iov, 2, sizeof buf3 + sizeof buf4);
+  if (ret == -1)
+    FAIL ();
+  if (ret != (sizeof buf3 + sizeof buf4))
+    FAIL ();
+
+  if (memcmp (buf1, buf3, sizeof buf1) != 0)
+    FAIL ();
+  if (memcmp (buf2, buf4, sizeof buf2) != 0)
+    FAIL ();
+
+  return 0;
+}
diff --git a/misc/tst-preadvwritev64.c b/misc/tst-preadvwritev64.c
new file mode 100644
index 0000000..ff6e134
--- /dev/null
+++ b/misc/tst-preadvwritev64.c
@@ -0,0 +1,22 @@
+/* Tests for pread64 and pwrite64.
+   Copyright (C) 2016 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define PREADV  preadv64
+#define PWRITEV pwritev64
+
+#include "tst-preadvwritev.c"
diff --git a/sysdeps/unix/sysv/linux/preadv.c b/sysdeps/unix/sysv/linux/preadv.c
index f6958c3..1dbaa35 100644
--- a/sysdeps/unix/sysv/linux/preadv.c
+++ b/sysdeps/unix/sysv/linux/preadv.c
@@ -29,8 +29,7 @@
 ssize_t
 preadv (int fd, const struct iovec *vector, int count, off_t offset)
 {
-  return SYSCALL_CANCEL (preadv, fd, vector, count,
-			 __ALIGNMENT_ARG SYSCALL_LL (offset));
+  return SYSCALL_CANCEL (preadv, fd, vector, count, SYSCALL_LL (offset));
 }
 # else
 static ssize_t __atomic_preadv_replacement (int, const struct iovec *,
@@ -40,7 +39,7 @@ preadv (int fd, const struct iovec *vector, int count, off_t offset)
 {
 #  ifdef __NR_preadv
   ssize_t result = SYSCALL_CANCEL (preadv, fd, vector, count,
-				   __ALIGNMENT_ARG SYSCALL_LL (offset));
+				   SYSCALL_LL (offset));
   if (result >= 0 || errno != ENOSYS)
     return result;
 #  endif
diff --git a/sysdeps/unix/sysv/linux/preadv64.c b/sysdeps/unix/sysv/linux/preadv64.c
index 18f5550..7c7910a 100644
--- a/sysdeps/unix/sysv/linux/preadv64.c
+++ b/sysdeps/unix/sysv/linux/preadv64.c
@@ -27,8 +27,7 @@
 ssize_t
 preadv64 (int fd, const struct iovec *vector, int count, off64_t offset)
 {
-  return SYSCALL_CANCEL (preadv64, fd, vector, count,
-			 __ALIGNMENT_ARG SYSCALL_LL64 (offset));
+  return SYSCALL_CANCEL (preadv64, fd, vector, count, SYSCALL_LL64 (offset));
 }
 #else
 static ssize_t __atomic_preadv64_replacement (int, const struct iovec *,
@@ -38,7 +37,7 @@ preadv64 (int fd, const struct iovec *vector, int count, off64_t offset)
 {
 #ifdef __NR_preadv64
   ssize_t result = SYSCALL_CANCEL (preadv64, fd, vector, count,
-				   __ALIGNMENT_ARG SYSCALL_LL64 (offset));
+				   SYSCALL_LL64 (offset));
   if (result >= 0 || errno != ENOSYS)
     return result;
 #endif
diff --git a/sysdeps/unix/sysv/linux/pwritev.c b/sysdeps/unix/sysv/linux/pwritev.c
index b11606c..57e579c 100644
--- a/sysdeps/unix/sysv/linux/pwritev.c
+++ b/sysdeps/unix/sysv/linux/pwritev.c
@@ -29,8 +29,7 @@
 ssize_t
 pwritev (int fd, const struct iovec *vector, int count, off_t offset)
 {
-  return SYSCALL_CANCEL (pwritev, fd, vector, count,
-			 __ALIGNMENT_ARG SYSCALL_LL (offset));
+  return SYSCALL_CANCEL (pwritev, fd, vector, count, SYSCALL_LL (offset));
 }
 # else
 static ssize_t __atomic_pwritev_replacement (int, const struct iovec *,
@@ -40,7 +39,7 @@ pwritev (int fd, const struct iovec *vector, int count, off_t offset)
 {
 #  ifdef __NR_pwritev
   ssize_t result = SYSCALL_CANCEL (pwritev, fd, vector, count,
-				   __ALIGNMENT_ARG SYSCALL_LL (offset));
+				   SYSCALL_LL (offset));
   if (result >= 0 || errno != ENOSYS)
     return result;
 #  endif
diff --git a/sysdeps/unix/sysv/linux/pwritev64.c b/sysdeps/unix/sysv/linux/pwritev64.c
index bed79b7..39af02f 100644
--- a/sysdeps/unix/sysv/linux/pwritev64.c
+++ b/sysdeps/unix/sysv/linux/pwritev64.c
@@ -28,7 +28,7 @@ ssize_t
 pwritev64 (int fd, const struct iovec *vector, int count, off64_t offset)
 {
   return SYSCALL_CANCEL (pwritev64, fd, vector, count,
-			 __ALIGNMENT_ARG SYSCALL_LL64 (offset));
+			 SYSCALL_LL64 (offset));
 }
 #else
 static ssize_t __atomic_pwritev64_replacement (int, const struct iovec *,
@@ -38,7 +38,7 @@ pwritev64 (int fd, const struct iovec *vector, int count, off64_t offset)
 {
 #ifdef __NR_pwrite64v
   ssize_t result = SYSCALL_CANCEL (pwritev64, fd, vector, count,
-				   __ALIGNMENT_ARG SYSCALL_LL64 (offset));
+				   SYSCALL_LL64 (offset));
   if (result >= 0 || errno != ENOSYS)
     return result;
 #endif
