LU-2658 llite: too many arguments in generic_file_llseek_size

[fs/lustre-release.git] / lustre / autoconf / lustre-core.m4

diff --git a/lustre/autoconf/lustre-core.m4 b/lustre/autoconf/lustre-core.m4
index c3ee6c0..f290ea2 100644 (file)
--- a/lustre/autoconf/lustre-core.m4
+++ b/lustre/autoconf/lustre-core.m4
@@ -2126,6 +2126,22 @@ LB_LINUX_TRY_COMPILE([
 EXTRA_KCFLAGS="$tmp_flags"
 ])
 
+# 3.5 has generic_file_llseek_size with 5 args
+AC_DEFUN([LC_FILE_LLSEEK_SIZE_5ARG],
+[AC_MSG_CHECKING([if kernel has generic_file_llseek_size with 5 args])
+LB_LINUX_TRY_COMPILE([
+       #include <linux/fs.h>
+],[
+       generic_file_llseek_size(NULL, 0, 0, 0, 0);
+], [
+       AC_MSG_RESULT([yes])
+       AC_DEFINE(HAVE_FILE_LLSEEK_SIZE_5ARGS, 1,
+               [kernel has generic_file_llseek_size with 5 args])
+],[
+       AC_MSG_RESULT([no])
+])
+])
+
 #
 # 3.6 switch i_dentry/d_alias from list to hlist
 #