From 2fbc62e2a13fc22b6ae4910e295a2c10fb790486 Mon Sep 17 00:00:00 2001
From: Zoltan Karcagi <zkr7432@gmail.com>
Date: Mon, 12 Aug 2019 13:27:16 -0400
Subject: [PATCH] Fix include order between config.h and stat.h

At least on Arch linux ARM, the definition of struct stat in stat.h depends
on __USE_FILE_OFFSET64. This symbol comes from config.h when defined,
therefore config.h must always be included before stat.h. Fix all
occurrences where the order is wrong by moving config.h to the top.

This fixes the client side error "Stale file handle" when mounting from
a server running Arch Linux ARM.

Signed-off-by: Zoltan Karcagi <zkr7432@gmail.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
---
 support/misc/nfsd_path.c         | 5 ++++-
 support/misc/xstat.c             | 5 ++++-
 support/nfs/conffile.c           | 8 +++++++-
 utils/blkmapd/device-discovery.c | 8 ++++----
 utils/idmapd/idmapd.c            | 8 ++++----
 5 files changed, 23 insertions(+), 11 deletions(-)

diff --git a/support/misc/nfsd_path.c b/support/misc/nfsd_path.c
index 84e48028..f078a668 100644
--- a/support/misc/nfsd_path.c
+++ b/support/misc/nfsd_path.c
@@ -1,3 +1,7 @@
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
 #include <errno.h>
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -5,7 +9,6 @@
 #include <stdlib.h>
 #include <unistd.h>
 
-#include "config.h"
 #include "conffile.h"
 #include "xmalloc.h"
 #include "xlog.h"
diff --git a/support/misc/xstat.c b/support/misc/xstat.c
index fa047880..4c997eea 100644
--- a/support/misc/xstat.c
+++ b/support/misc/xstat.c
@@ -1,3 +1,7 @@
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
 #include <errno.h>
 #include <sys/types.h>
 #include <fcntl.h>
@@ -5,7 +9,6 @@
 #include <sys/sysmacros.h>
 #include <unistd.h>
 
-#include "config.h"
 #include "xstat.h"
 
 #ifdef HAVE_FSTATAT
diff --git a/support/nfs/conffile.c b/support/nfs/conffile.c
index b6400bec..6ba8a35c 100644
--- a/support/nfs/conffile.c
+++ b/support/nfs/conffile.c
@@ -500,7 +500,7 @@ conf_readfile(const char *path)
 
 	if ((stat (path, &sb) == 0) || (errno != ENOENT)) {
 		char *new_conf_addr = NULL;
-		size_t sz = sb.st_size;
+		off_t sz;
 		int fd = open (path, O_RDONLY, 0);
 
 		if (fd == -1) {
@@ -517,6 +517,11 @@ conf_readfile(const char *path)
 
 		/* only after we have the lock, check the file size ready to read it */
 		sz = lseek(fd, 0, SEEK_END);
+		if (sz < 0) {
+			xlog_warn("conf_readfile: unable to determine file size: %s",
+				  strerror(errno));
+			goto fail;
+		}
 		lseek(fd, 0, SEEK_SET);
 
 		new_conf_addr = malloc(sz+1);
@@ -2162,6 +2167,7 @@ conf_write(const char *filename, const char *section, const char *arg,
 	ret = 0;
 
 cleanup:
+	flush_outqueue(&inqueue, NULL);
 	flush_outqueue(&outqueue, NULL);
 
 	if (buff)
diff --git a/utils/blkmapd/device-discovery.c b/utils/blkmapd/device-discovery.c
index e811703d..f5f9b10b 100644
--- a/utils/blkmapd/device-discovery.c
+++ b/utils/blkmapd/device-discovery.c
@@ -26,6 +26,10 @@
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif /* HAVE_CONFIG_H */
+
 #include <sys/sysmacros.h>
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -51,10 +55,6 @@
 #include <errno.h>
 #include <libdevmapper.h>
 
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif /* HAVE_CONFIG_H */
-
 #include "device-discovery.h"
 #include "xcommon.h"
 #include "nfslib.h"
diff --git a/utils/idmapd/idmapd.c b/utils/idmapd/idmapd.c
index 62e37b8a..267acea5 100644
--- a/utils/idmapd/idmapd.c
+++ b/utils/idmapd/idmapd.c
@@ -34,6 +34,10 @@
  *  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif /* HAVE_CONFIG_H */
+
 #include <sys/types.h>
 #include <sys/time.h>
 #include <sys/inotify.h>
@@ -62,10 +66,6 @@
 #include <libgen.h>
 #include <nfsidmap.h>
 
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif /* HAVE_CONFIG_H */
-
 #include "xlog.h"
 #include "conffile.h"
 #include "queue.h"
-- 
2.21.0