syscalls/lseek11.c: fix syncfs() && SEEK_DATA
1) We add SAFE_FSYNC().
2) Compilation failed on RHEL6.9GA because syncfs() was not defined.
this function is introduced since linux 2.6.39, so we could use
SAFE_FSYNC() instead of syncfs().
3) We add a check if SEEK_DATA was implemented in get_blocksize(),
and remove this check in setup().
Signed-off-by: Xiao Yang <yangx.jy@cn.fujitsu.com>
diff --git a/include/tst_safe_macros.h b/include/tst_safe_macros.h
index 7683109..a25a4f0 100644
--- a/include/tst_safe_macros.h
+++ b/include/tst_safe_macros.h
@@ -427,4 +427,7 @@
#define SAFE_REMOVEXATTR(path, name) \
safe_removexattr(__FILE__, __LINE__, (path), (name))
+int safe_fsync(const char *file, const int lineno, int fd);
+#define SAFE_FSYNC(fd) safe_fsync(__FILE__, __LINE__, (fd))
+
#endif /* SAFE_MACROS_H__ */