config/kernel-fsync.m4

   1 dnl #
   2 dnl # Linux 2.6.x - 2.6.34 API
   3 dnl #
   4 AC_DEFUN([ZFS_AC_KERNEL_FSYNC_WITH_DENTRY], [
   5         ZFS_LINUX_TRY_COMPILE([
   6                 #include <linux/fs.h>
   7
   8                 int test_fsync(struct file *f, struct dentry *dentry, int x)
   9                     { return 0; }
  10
  11                 static const struct file_operations
  12                     fops __attribute__ ((unused)) = {
  13                         .fsync = test_fsync,
  14                 };
  15         ],[
  16         ],[
  17                 AC_MSG_RESULT([dentry])
  18                 AC_DEFINE(HAVE_FSYNC_WITH_DENTRY, 1,
  19                         [fops->fsync() with dentry])
  20         ],[
  21         ])
  22 ])
  23
  24 dnl #
  25 dnl # Linux 2.6.35 - Linux 3.0 API
  26 dnl #
  27 AC_DEFUN([ZFS_AC_KERNEL_FSYNC_WITHOUT_DENTRY], [
  28         ZFS_LINUX_TRY_COMPILE([
  29                 #include <linux/fs.h>
  30
  31                 int test_fsync(struct file *f, int x) { return 0; }
  32
  33                 static const struct file_operations
  34                     fops __attribute__ ((unused)) = {
  35                         .fsync = test_fsync,
  36                 };
  37         ],[
  38         ],[
  39                 AC_MSG_RESULT([no dentry])
  40                 AC_DEFINE(HAVE_FSYNC_WITHOUT_DENTRY, 1,
  41                         [fops->fsync() without dentry])
  42         ],[
  43         ])
  44 ])
  45
  46 dnl #
  47 dnl # Linux 3.1 - 3.x API
  48 dnl #
  49 AC_DEFUN([ZFS_AC_KERNEL_FSYNC_RANGE], [
  50         ZFS_LINUX_TRY_COMPILE([
  51                 #include <linux/fs.h>
  52
  53                 int test_fsync(struct file *f, loff_t a, loff_t b, int c)
  54                     { return 0; }
  55
  56                 static const struct file_operations
  57                     fops __attribute__ ((unused)) = {
  58                         .fsync = test_fsync,
  59                 };
  60         ],[
  61         ],[
  62                 AC_MSG_RESULT([range])
  63                 AC_DEFINE(HAVE_FSYNC_RANGE, 1,
  64                         [fops->fsync() with range])
  65         ],[
  66         ])
  67 ])
  68
  69 AC_DEFUN([ZFS_AC_KERNEL_FSYNC], [
  70         AC_MSG_CHECKING([whether fops->fsync() wants])
  71         ZFS_AC_KERNEL_FSYNC_WITH_DENTRY
  72         ZFS_AC_KERNEL_FSYNC_WITHOUT_DENTRY
  73         ZFS_AC_KERNEL_FSYNC_RANGE
  74 ])