])
dnl #
+dnl # PaX Linux 2.6.38 - 3.x API
+dnl #
+AC_DEFUN([ZFS_AC_PAX_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_no_const fops __attribute__ ((unused)) = {
+ .fallocate = fallocate,
+ };
+ ],[
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE_FILE_FALLOCATE, 1, [fops->fallocate() exists])
+ ],[
+ AC_MSG_RESULT(no)
+ ])
+])
+
+dnl #
dnl # The fallocate callback was moved from the inode_operations
dnl # structure to the file_operations structure.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_FALLOCATE], [
ZFS_AC_KERNEL_FILE_FALLOCATE
ZFS_AC_KERNEL_INODE_FALLOCATE
+ ZFS_AC_PAX_KERNEL_FILE_FALLOCATE
])