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kernel-fsync.m4
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kernel-fsync.m4
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dnl #
dnl # Linux 2.6.x - 2.6.34 API
dnl #
AC_DEFUN([ZFS_AC_KERNEL_FSYNC_WITH_DENTRY], [
ZFS_LINUX_TRY_COMPILE([
#include <linux/fs.h>
],[
int (*fsync) (struct file *, struct dentry *, int) = NULL;
struct file_operations fops __attribute__ ((unused));
fops.fsync = fsync;
],[
AC_MSG_RESULT([dentry])
AC_DEFINE(HAVE_FSYNC_WITH_DENTRY, 1,
[fops->fsync() with dentry])
],[
])
])
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 - 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])
],[
])
])
dnl #
dnl # PaX Linux 2.6.x - 2.6.34 API
dnl #
AC_DEFUN([ZFS_AC_PAX_KERNEL_FSYNC_WITH_DENTRY], [
ZFS_LINUX_TRY_COMPILE([
#include <linux/fs.h>
],[
int (*fsync) (struct file *, struct dentry *, int) = NULL;
file_operations_no_const fops __attribute__ ((unused));
fops.fsync = fsync;
],[
AC_MSG_RESULT([dentry])
AC_DEFINE(HAVE_FSYNC_WITH_DENTRY, 1,
[fops->fsync() with dentry])
],[
])
])
dnl #
dnl # PaX Linux 2.6.35 - Linux 3.0 API
dnl #
AC_DEFUN([ZFS_AC_PAX_KERNEL_FSYNC_WITHOUT_DENTRY], [
ZFS_LINUX_TRY_COMPILE([
#include <linux/fs.h>
],[
int (*fsync) (struct file *, int) = NULL;
file_operations_no_const fops __attribute__ ((unused));
fops.fsync = fsync;
],[
AC_MSG_RESULT([no dentry])
AC_DEFINE(HAVE_FSYNC_WITHOUT_DENTRY, 1,
[fops->fsync() without dentry])
],[
])
])
dnl #
dnl # PaX Linux 3.1 - 3.x API
dnl #
AC_DEFUN([ZFS_AC_PAX_KERNEL_FSYNC_RANGE], [
ZFS_LINUX_TRY_COMPILE([
#include <linux/fs.h>
],[
int (*fsync) (struct file *, loff_t, loff_t, int) = NULL;
file_operations_no_const 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
ZFS_AC_PAX_KERNEL_FSYNC_WITH_DENTRY
ZFS_AC_PAX_KERNEL_FSYNC_WITHOUT_DENTRY
ZFS_AC_PAX_KERNEL_FSYNC_RANGE
])