liblttng-ctl: use export list to define exported symbols

[lttng-tools.git] / src / common / compat / compat-fcntl.c

diff --git a/src/common/compat/compat-fcntl.c b/src/common/compat/compat-fcntl.c
index 5a1c757b864ed1de210f19b60744714bce01dcd6..bc014d6404df4f1a78f71a0783d4b4ab6b47656a 100644 (file)
--- a/src/common/compat/compat-fcntl.c
+++ b/src/common/compat/compat-fcntl.c
@@ -1,29 +1,25 @@
 /*
- * Copyright (C) 2011 - David Goulet <dgoulet@efficios.com>
+ * Copyright (C) 2011 David Goulet <dgoulet@efficios.com>
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2 only,
- * as published by the Free Software Foundation.
+ * SPDX-License-Identifier: GPL-2.0-only
  *
- * This program 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 General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#define _GNU_SOURCE
+#define _LGPL_SOURCE
 #include <common/compat/fcntl.h>
+#include <common/macros.h>
+#include <unistd.h>
 
 #ifdef __linux__
 
 int compat_sync_file_range(int fd, off64_t offset, off64_t nbytes,
                unsigned int flags)
 {
+#ifdef HAVE_SYNC_FILE_RANGE
        return sync_file_range(fd, offset, nbytes, flags);
+#else
+       return fdatasync(fd);
+#endif
 }
 
 #endif /* __linux__ */