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dnl #
dnl # 2.6.35 API change,
dnl # The cachep->gfpflags member was renamed cachep->allocflags. These are
dnl # private allocation flags which are applied when allocating a new slab
dnl # in kmem_getpages(). Unfortunately there is no public API for setting
dnl # non-default flags.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_KMEM_CACHE_ALLOCFLAGS], [
ZFS_LINUX_TEST_SRC([kmem_cache_allocflags], [
#include <linux/slab.h>
],[
struct kmem_cache cachep __attribute__ ((unused));
cachep.allocflags = GFP_KERNEL;
])
ZFS_LINUX_TEST_SRC([kmem_cache_gfpflags], [
#include <linux/slab.h>
],[
struct kmem_cache cachep __attribute__ ((unused));
cachep.gfpflags = GFP_KERNEL;
])
])
AC_DEFUN([ZFS_AC_KERNEL_KMEM_CACHE_ALLOCFLAGS], [
AC_MSG_CHECKING([whether struct kmem_cache has allocflags])
ZFS_LINUX_TEST_RESULT([kmem_cache_allocflags], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_KMEM_CACHE_ALLOCFLAGS, 1,
[struct kmem_cache has allocflags])
],[
AC_MSG_RESULT(no)
AC_MSG_CHECKING([whether struct kmem_cache has gfpflags])
ZFS_LINUX_TEST_RESULT([kmem_cache_gfpflags], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_KMEM_CACHE_GFPFLAGS, 1,
[struct kmem_cache has gfpflags])
],[
AC_MSG_RESULT(no)
])
])
])
dnl #
dnl # grsecurity API change,
dnl # kmem_cache_create() with SLAB_USERCOPY flag replaced by
dnl # kmem_cache_create_usercopy().
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_KMEM_CACHE_CREATE_USERCOPY], [
ZFS_LINUX_TEST_SRC([kmem_cache_create_usercopy], [
#include <linux/slab.h>
static void ctor(void *foo) { /* fake ctor */ }
],[
struct kmem_cache *skc_linux_cache;
const char *name = "test";
size_t size = 4096;
size_t align = 8;
unsigned long flags = 0;
size_t useroffset = 0;
size_t usersize = size - useroffset;
skc_linux_cache = kmem_cache_create_usercopy(
name, size, align, flags, useroffset, usersize, ctor);
])
])
AC_DEFUN([ZFS_AC_KERNEL_KMEM_CACHE_CREATE_USERCOPY], [
AC_MSG_CHECKING([whether kmem_cache_create_usercopy() exists])
ZFS_LINUX_TEST_RESULT([kmem_cache_create_usercopy], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_KMEM_CACHE_CREATE_USERCOPY, 1,
[kmem_cache_create_usercopy() exists])
],[
AC_MSG_RESULT(no)
])
])
AC_DEFUN([ZFS_AC_KERNEL_SRC_KMEM_CACHE], [
ZFS_AC_KERNEL_SRC_KMEM_CACHE_ALLOCFLAGS
ZFS_AC_KERNEL_SRC_KMEM_CACHE_CREATE_USERCOPY
])
AC_DEFUN([ZFS_AC_KERNEL_KMEM_CACHE], [
ZFS_AC_KERNEL_KMEM_CACHE_ALLOCFLAGS
ZFS_AC_KERNEL_KMEM_CACHE_CREATE_USERCOPY
])
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