diff --git a/block/gluster.c b/block/gluster.c
index 4fd55a9cc5..e518de1b0d 100644
--- a/block/gluster.c
+++ b/block/gluster.c
@@ -20,6 +20,10 @@
 #include "qemu/option.h"
 #include "qemu/cutils.h"
 
+#ifdef CONFIG_GLUSTERFS_FTRUNCATE_HAS_STAT
+# define glfs_ftruncate(fd, offset) glfs_ftruncate(fd, offset, NULL, NULL)
+#endif
+
 #define GLUSTER_OPT_FILENAME        "filename"
 #define GLUSTER_OPT_VOLUME          "volume"
 #define GLUSTER_OPT_PATH            "path"
@@ -725,7 +729,11 @@ static struct glfs *qemu_gluster_init(BlockdevOptionsGluster *gconf,
 /*
  * AIO callback routine called from GlusterFS thread.
  */
-static void gluster_finish_aiocb(struct glfs_fd *fd, ssize_t ret, void *arg)
+static void gluster_finish_aiocb(struct glfs_fd *fd, ssize_t ret,
+#ifdef CONFIG_GLUSTERFS_IOCB_HAS_STAT
+                                 struct glfs_stat *pre, struct glfs_stat *post,
+#endif
+                                 void *arg)
 {
     GlusterAIOCB *acb = (GlusterAIOCB *)arg;
 
diff --git a/configure b/configure
index 697c0c2cb6..573e8240c1 100755
--- a/configure
+++ b/configure
@@ -451,6 +451,8 @@ glusterfs_xlator_opt="no"
 glusterfs_discard="no"
 glusterfs_fallocate="no"
 glusterfs_zerofill="no"
+glusterfs_ftruncate_has_stat="no"
+glusterfs_iocb_has_stat="no"
 gtk=""
 gtkabi=""
 gtk_gl="no"
@@ -3947,6 +3949,38 @@ if test "$glusterfs" != "no" ; then
       glusterfs_fallocate="yes"
       glusterfs_zerofill="yes"
     fi
+    cat > $TMPC << EOF
+#include <glusterfs/api/glfs.h>
+
+int
+main(void)
+{
+	/* new glfs_ftruncate() passes two additional args */
+	return glfs_ftruncate(NULL, 0, NULL, NULL);
+}
+EOF
+    if compile_prog "$glusterfs_cflags" "$glusterfs_libs" ; then
+      glusterfs_ftruncate_has_stat="yes"
+    fi
+    cat > $TMPC << EOF
+#include <glusterfs/api/glfs.h>
+
+/* new glfs_io_cbk() passes two additional glfs_stat structs */
+static void
+glusterfs_iocb(glfs_fd_t *fd, ssize_t ret, struct glfs_stat *prestat, struct glfs_stat *poststat, void *data)
+{}
+
+int
+main(void)
+{
+	glfs_io_cbk iocb = &glusterfs_iocb;
+	iocb(NULL, 0 , NULL, NULL, NULL);
+	return 0;
+}
+EOF
+    if compile_prog "$glusterfs_cflags" "$glusterfs_libs" ; then
+      glusterfs_iocb_has_stat="yes"
+    fi
   else
     if test "$glusterfs" = "yes" ; then
       feature_not_found "GlusterFS backend support" \
@@ -6644,6 +6678,14 @@ if test "$glusterfs_zerofill" = "yes" ; then
   echo "CONFIG_GLUSTERFS_ZEROFILL=y" >> $config_host_mak
 fi
 
+if test "$glusterfs_ftruncate_has_stat" = "yes" ; then
+  echo "CONFIG_GLUSTERFS_FTRUNCATE_HAS_STAT=y" >> $config_host_mak
+fi
+
+if test "$glusterfs_iocb_has_stat" = "yes" ; then
+  echo "CONFIG_GLUSTERFS_IOCB_HAS_STAT=y" >> $config_host_mak
+fi
+
 if test "$libssh2" = "yes" ; then
   echo "CONFIG_LIBSSH2=m" >> $config_host_mak
   echo "LIBSSH2_CFLAGS=$libssh2_cflags" >> $config_host_mak
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index dfc851cc35..d0c9c08ab7 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -250,15 +250,8 @@ static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5,	\
 #define TARGET_NR__llseek TARGET_NR_llseek
 #endif
 
-#ifdef __NR_gettid
-_syscall0(int, gettid)
-#else
-/* This is a replacement for the host gettid() and must return a host
-   errno. */
-static int gettid(void) {
-    return -ENOSYS;
-}
-#endif
+#define __NR_sys_gettid __NR_gettid
+_syscall0(int, sys_gettid)
 
 /* For the 64-bit guest on 32-bit host case we must emulate
  * getdents using getdents64, because otherwise the host
@@ -6384,7 +6377,7 @@ static void *clone_func(void *arg)
     cpu = ENV_GET_CPU(env);
     thread_cpu = cpu;
     ts = (TaskState *)cpu->opaque;
-    info->tid = gettid();
+    info->tid = sys_gettid();
     task_settid(ts);
     if (info->child_tidptr)
         put_user_u32(info->tid, info->child_tidptr);
@@ -6529,9 +6522,9 @@ static int do_fork(CPUArchState *env, unsigned int flags, abi_ulong newsp,
                mapping.  We can't repeat the spinlock hack used above because
                the child process gets its own copy of the lock.  */
             if (flags & CLONE_CHILD_SETTID)
-                put_user_u32(gettid(), child_tidptr);
+                put_user_u32(sys_gettid(), child_tidptr);
             if (flags & CLONE_PARENT_SETTID)
-                put_user_u32(gettid(), parent_tidptr);
+                put_user_u32(sys_gettid(), parent_tidptr);
             ts = (TaskState *)cpu->opaque;
             if (flags & CLONE_SETTLS)
                 cpu_set_tls (env, newtls);
@@ -11803,7 +11796,7 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
         break;
 #endif
     case TARGET_NR_gettid:
-        ret = get_errno(gettid());
+        ret = get_errno(sys_gettid());
         break;
 #ifdef TARGET_NR_readahead
     case TARGET_NR_readahead: