X-Git-Url: https://git.camperquake.de/gitweb.cgi?a=blobdiff_plain;ds=sidebyside;f=config%2Fkernel-fallocate.m4;h=5509064725e00d3a0ca3c45824295fb26a1ef1fd;hb=c11a12bc3b2e5ee9a6bd74e26f1a396b6025fbd4;hp=d551276c77fee2059f07c38d4843b3b635099612;hpb=cb2d19010d8fbcf6c22585cd8763fad3ba7db724;p=zfs.git

diff --git a/config/kernel-fallocate.m4 b/config/kernel-fallocate.m4
index d551276..5509064 100644
--- a/config/kernel-fallocate.m4
+++ b/config/kernel-fallocate.m4
@@ -5,12 +5,16 @@ AC_DEFUN([ZFS_AC_KERNEL_FILE_FALLOCATE], [
 	AC_MSG_CHECKING([whether fops->fallocate() exists])
 	ZFS_LINUX_TRY_COMPILE([
 		#include <linux/fs.h>
-	],[
-		long (*fallocate) (struct file *, int, loff_t, loff_t) = NULL;
-		struct file_operations fops __attribute__ ((unused)) = {
-			.fallocate = fallocate,
+
+		long test_fallocate(struct file *file, int mode,
+		    loff_t offset, loff_t len) { return 0; }
+
+		static const struct file_operations
+		    fops __attribute__ ((unused)) = {
+			.fallocate = test_fallocate,
 		};
 	],[
+	],[
 		AC_MSG_RESULT(yes)
 		AC_DEFINE(HAVE_FILE_FALLOCATE, 1, [fops->fallocate() exists])
 	],[
@@ -25,12 +29,16 @@ AC_DEFUN([ZFS_AC_KERNEL_INODE_FALLOCATE], [
 	AC_MSG_CHECKING([whether iops->fallocate() exists])
 	ZFS_LINUX_TRY_COMPILE([
 		#include <linux/fs.h>
-	],[
-		long (*fallocate) (struct inode *, int, loff_t, loff_t) = NULL;
-		struct inode_operations fops __attribute__ ((unused)) = {
-			.fallocate = fallocate,
+
+		long test_fallocate(struct inode *inode, int mode,
+		    loff_t offset, loff_t len) { return 0; }
+
+		static const struct inode_operations
+		    fops __attribute__ ((unused)) = {
+			.fallocate = test_fallocate,
 		};
 	],[
+	],[
 		AC_MSG_RESULT(yes)
 		AC_DEFINE(HAVE_INODE_FALLOCATE, 1, [fops->fallocate() exists])
 	],[