+
+dnl #
+dnl # Linux 3.1 - 3.x API
+dnl #
+AC_DEFUN([ZFS_AC_KERNEL_FSYNC_RANGE], [
+ ZFS_LINUX_TRY_COMPILE([
+ #include <linux/fs.h>
+
+ int test_fsync(struct file *f, loff_t a, loff_t b, int c)
+ { return 0; }
+
+ static const struct file_operations
+ fops __attribute__ ((unused)) = {
+ .fsync = test_fsync,
+ };
+ ],[
+ ],[
+ AC_MSG_RESULT([range])
+ AC_DEFINE(HAVE_FSYNC_RANGE, 1,
+ [fops->fsync() with range])
+ ],[
+ ])
+])
+
+AC_DEFUN([ZFS_AC_KERNEL_FSYNC], [
+ AC_MSG_CHECKING([whether fops->fsync() wants])
+ ZFS_AC_KERNEL_FSYNC_WITH_DENTRY
+ ZFS_AC_KERNEL_FSYNC_WITHOUT_DENTRY
+ ZFS_AC_KERNEL_FSYNC_RANGE
+])