+
+dnl #
+dnl # Linux 2.6.35 - Linux 3.0 API
+dnl #
+AC_DEFUN([ZFS_AC_KERNEL_FSYNC_WITHOUT_DENTRY], [
+ ZFS_LINUX_TRY_COMPILE([
+ #include <linux/fs.h>
+ ],[
+ int (*fsync) (struct file *, int) = NULL;
+ struct file_operations fops __attribute__ ((unused));
+
+ fops.fsync = fsync;
+ ],[
+ AC_MSG_RESULT([no dentry])
+ AC_DEFINE(HAVE_FSYNC_WITHOUT_DENTRY, 1,
+ [fops->fsync() without dentry])
+ ],[
+ ])
+])
+
+dnl #
+dnl # Linux 3.1 -x 3.x API
+dnl #
+AC_DEFUN([ZFS_AC_KERNEL_FSYNC_RANGE], [
+ ZFS_LINUX_TRY_COMPILE([
+ #include <linux/fs.h>
+ ],[
+ int (*fsync) (struct file *, loff_t, loff_t, int) = NULL;
+ struct file_operations fops __attribute__ ((unused));
+
+ fops.fsync = 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
+])