2 dnl # Linux 2.6.38 - 3.x API
4 AC_DEFUN([ZFS_AC_KERNEL_FILE_FALLOCATE], [
5 AC_MSG_CHECKING([whether fops->fallocate() exists])
6 ZFS_LINUX_TRY_COMPILE([
9 long (*fallocate) (struct file *, int, loff_t, loff_t) = NULL;
10 struct file_operations fops __attribute__ ((unused)) = {
11 .fallocate = fallocate,
15 AC_DEFINE(HAVE_FILE_FALLOCATE, 1, [fops->fallocate() exists])
22 dnl # Linux 2.6.x - 2.6.37 API
24 AC_DEFUN([ZFS_AC_KERNEL_INODE_FALLOCATE], [
25 AC_MSG_CHECKING([whether iops->fallocate() exists])
26 ZFS_LINUX_TRY_COMPILE([
29 long (*fallocate) (struct inode *, int, loff_t, loff_t) = NULL;
30 struct inode_operations fops __attribute__ ((unused)) = {
31 .fallocate = fallocate,
35 AC_DEFINE(HAVE_INODE_FALLOCATE, 1, [fops->fallocate() exists])
42 dnl # PaX Linux 2.6.38 - 3.x API
44 AC_DEFUN([ZFS_AC_PAX_KERNEL_FILE_FALLOCATE], [
45 AC_MSG_CHECKING([whether fops->fallocate() exists])
46 ZFS_LINUX_TRY_COMPILE([
49 long (*fallocate) (struct file *, int, loff_t, loff_t) = NULL;
50 struct file_operations_no_const fops __attribute__ ((unused)) = {
51 .fallocate = fallocate,
55 AC_DEFINE(HAVE_FILE_FALLOCATE, 1, [fops->fallocate() exists])
62 dnl # The fallocate callback was moved from the inode_operations
63 dnl # structure to the file_operations structure.
65 AC_DEFUN([ZFS_AC_KERNEL_FALLOCATE], [
66 ZFS_AC_KERNEL_FILE_FALLOCATE
67 ZFS_AC_KERNEL_INODE_FALLOCATE
68 ZFS_AC_PAX_KERNEL_FILE_FALLOCATE