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|
dnl #
dnl # 2.6.35 API change,
dnl # The 'struct xattr_handler' was constified in the generic
dnl # super_block structure.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_CONST_XATTR_HANDLER], [
AC_MSG_CHECKING([whether super_block uses const struct xattr_handler])
ZFS_LINUX_TRY_COMPILE([
#include <linux/fs.h>
#include <linux/xattr.h>
const struct xattr_handler xattr_test_handler = {
.prefix = "test",
.get = NULL,
.set = NULL,
};
const struct xattr_handler *xattr_handlers[] = {
&xattr_test_handler,
};
const struct super_block sb __attribute__ ((unused)) = {
.s_xattr = xattr_handlers,
};
],[
],[
AC_MSG_RESULT([yes])
AC_DEFINE(HAVE_CONST_XATTR_HANDLER, 1,
[super_block uses const struct xattr_handler])
],[
AC_MSG_RESULT([no])
])
])
dnl #
dnl # 4.5 API change,
dnl # struct xattr_handler added new member "name".
dnl # xattr_handler which matches to whole name rather than prefix should use
dnl # "name" instead of "prefix", e.g. "system.posix_acl_access"
dnl #
AC_DEFUN([ZFS_AC_KERNEL_XATTR_HANDLER_NAME], [
AC_MSG_CHECKING([whether xattr_handler has name])
ZFS_LINUX_TRY_COMPILE([
#include <linux/xattr.h>
static const struct xattr_handler
xops __attribute__ ((unused)) = {
.name = XATTR_NAME_POSIX_ACL_ACCESS,
};
],[
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_XATTR_HANDLER_NAME, 1,
[xattr_handler has name])
],[
AC_MSG_RESULT(no)
])
])
dnl #
dnl # 4.9 API change,
dnl # iops->{set,get,remove}xattr and generic_{set,get,remove}xattr are
dnl # removed. xattr operations will directly go through sb->s_xattr.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_HAVE_GENERIC_SETXATTR], [
AC_MSG_CHECKING([whether generic_setxattr() exists])
ZFS_LINUX_TRY_COMPILE([
#include <linux/fs.h>
#include <linux/xattr.h>
static const struct inode_operations
iops __attribute__ ((unused)) = {
.setxattr = generic_setxattr
};
],[
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_GENERIC_SETXATTR, 1,
[generic_setxattr() exists])
],[
AC_MSG_RESULT(no)
])
])
dnl #
dnl # Supported xattr handler get() interfaces checked newest to oldest.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_XATTR_HANDLER_GET], [
dnl #
dnl # 4.7 API change,
dnl # The xattr_handler->get() callback was changed to take both
dnl # dentry and inode.
dnl #
AC_MSG_CHECKING([whether xattr_handler->get() wants both dentry and inode])
ZFS_LINUX_TRY_COMPILE([
#include <linux/xattr.h>
int get(const struct xattr_handler *handler,
struct dentry *dentry, struct inode *inode,
const char *name, void *buffer, size_t size) { return 0; }
static const struct xattr_handler
xops __attribute__ ((unused)) = {
.get = get,
};
],[
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_XATTR_GET_DENTRY_INODE, 1,
[xattr_handler->get() wants both dentry and inode])
],[
dnl #
dnl # 4.4 API change,
dnl # The xattr_handler->get() callback was changed to take a
dnl # attr_handler, and handler_flags argument was removed and
dnl # should be accessed by handler->flags.
dnl #
AC_MSG_RESULT(no)
AC_MSG_CHECKING([whether xattr_handler->get() wants xattr_handler])
ZFS_LINUX_TRY_COMPILE([
#include <linux/xattr.h>
int get(const struct xattr_handler *handler,
struct dentry *dentry, const char *name,
void *buffer, size_t size) { return 0; }
static const struct xattr_handler
xops __attribute__ ((unused)) = {
.get = get,
};
],[
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_XATTR_GET_HANDLER, 1,
[xattr_handler->get() wants xattr_handler])
],[
dnl #
dnl # 2.6.33 API change,
dnl # The xattr_handler->get() callback was changed to take
dnl # a dentry instead of an inode, and a handler_flags
dnl # argument was added.
dnl #
AC_MSG_RESULT(no)
AC_MSG_CHECKING([whether xattr_handler->get() wants dentry])
ZFS_LINUX_TRY_COMPILE([
#include <linux/xattr.h>
int get(struct dentry *dentry, const char *name,
void *buffer, size_t size, int handler_flags)
{ return 0; }
static const struct xattr_handler
xops __attribute__ ((unused)) = {
.get = get,
};
],[
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_XATTR_GET_DENTRY, 1,
[xattr_handler->get() wants dentry])
],[
dnl #
dnl # 2.6.32 API
dnl #
AC_MSG_RESULT(no)
AC_MSG_CHECKING(
[whether xattr_handler->get() wants inode])
ZFS_LINUX_TRY_COMPILE([
#include <linux/xattr.h>
int get(struct inode *ip, const char *name,
void *buffer, size_t size) { return 0; }
static const struct xattr_handler
xops __attribute__ ((unused)) = {
.get = get,
};
],[
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_XATTR_GET_INODE, 1,
[xattr_handler->get() wants inode])
],[
AC_MSG_ERROR([no; please file a bug report])
])
])
])
])
])
dnl #
dnl # Supported xattr handler set() interfaces checked newest to oldest.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_XATTR_HANDLER_SET], [
dnl #
dnl # 4.7 API change,
dnl # The xattr_handler->set() callback was changed to take both
dnl # dentry and inode.
dnl #
AC_MSG_CHECKING([whether xattr_handler->set() wants both dentry and inode])
ZFS_LINUX_TRY_COMPILE([
#include <linux/xattr.h>
int set(const struct xattr_handler *handler,
struct dentry *dentry, struct inode *inode,
const char *name, const void *buffer,
size_t size, int flags)
{ return 0; }
static const struct xattr_handler
xops __attribute__ ((unused)) = {
.set = set,
};
],[
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_XATTR_SET_DENTRY_INODE, 1,
[xattr_handler->set() wants both dentry and inode])
],[
dnl #
dnl # 4.4 API change,
dnl # The xattr_handler->set() callback was changed to take a
dnl # xattr_handler, and handler_flags argument was removed and
dnl # should be accessed by handler->flags.
dnl #
AC_MSG_RESULT(no)
AC_MSG_CHECKING([whether xattr_handler->set() wants xattr_handler])
ZFS_LINUX_TRY_COMPILE([
#include <linux/xattr.h>
int set(const struct xattr_handler *handler,
struct dentry *dentry, const char *name,
const void *buffer, size_t size, int flags)
{ return 0; }
static const struct xattr_handler
xops __attribute__ ((unused)) = {
.set = set,
};
],[
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_XATTR_SET_HANDLER, 1,
[xattr_handler->set() wants xattr_handler])
],[
dnl #
dnl # 2.6.33 API change,
dnl # The xattr_handler->set() callback was changed to take a
dnl # dentry instead of an inode, and a handler_flags
dnl # argument was added.
dnl #
AC_MSG_RESULT(no)
AC_MSG_CHECKING([whether xattr_handler->set() wants dentry])
ZFS_LINUX_TRY_COMPILE([
#include <linux/xattr.h>
int set(struct dentry *dentry, const char *name,
const void *buffer, size_t size, int flags,
int handler_flags) { return 0; }
static const struct xattr_handler
xops __attribute__ ((unused)) = {
.set = set,
};
],[
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_XATTR_SET_DENTRY, 1,
[xattr_handler->set() wants dentry])
],[
dnl #
dnl # 2.6.32 API
dnl #
AC_MSG_RESULT(no)
AC_MSG_CHECKING(
[whether xattr_handler->set() wants inode])
ZFS_LINUX_TRY_COMPILE([
#include <linux/xattr.h>
int set(struct inode *ip, const char *name,
const void *buffer, size_t size, int flags)
{ return 0; }
static const struct xattr_handler
xops __attribute__ ((unused)) = {
.set = set,
};
],[
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_XATTR_SET_INODE, 1,
[xattr_handler->set() wants inode])
],[
AC_MSG_ERROR([no; please file a bug report])
])
])
])
])
])
dnl #
dnl # Supported xattr handler list() interfaces checked newest to oldest.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_XATTR_HANDLER_LIST], [
dnl # 4.5 API change,
dnl # The xattr_handler->list() callback was changed to take only a
dnl # dentry and it only needs to return if it's accessible.
AC_MSG_CHECKING([whether xattr_handler->list() wants simple])
ZFS_LINUX_TRY_COMPILE([
#include <linux/xattr.h>
bool list(struct dentry *dentry) { return 0; }
static const struct xattr_handler
xops __attribute__ ((unused)) = {
.list = list,
};
],[
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_XATTR_LIST_SIMPLE, 1,
[xattr_handler->list() wants simple])
],[
dnl #
dnl # 4.4 API change,
dnl # The xattr_handler->list() callback was changed to take a
dnl # xattr_handler, and handler_flags argument was removed
dnl # and should be accessed by handler->flags.
dnl #
AC_MSG_RESULT(no)
AC_MSG_CHECKING(
[whether xattr_handler->list() wants xattr_handler])
ZFS_LINUX_TRY_COMPILE([
#include <linux/xattr.h>
size_t list(const struct xattr_handler *handler,
struct dentry *dentry, char *list, size_t list_size,
const char *name, size_t name_len) { return 0; }
static const struct xattr_handler
xops __attribute__ ((unused)) = {
.list = list,
};
],[
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_XATTR_LIST_HANDLER, 1,
[xattr_handler->list() wants xattr_handler])
],[
dnl #
dnl # 2.6.33 API change,
dnl # The xattr_handler->list() callback was changed
dnl # to take a dentry instead of an inode, and a
dnl # handler_flags argument was added.
dnl #
AC_MSG_RESULT(no)
AC_MSG_CHECKING(
[whether xattr_handler->list() wants dentry])
ZFS_LINUX_TRY_COMPILE([
#include <linux/xattr.h>
size_t list(struct dentry *dentry,
char *list, size_t list_size,
const char *name, size_t name_len,
int handler_flags) { return 0; }
static const struct xattr_handler
xops __attribute__ ((unused)) = {
.list = list,
};
],[
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_XATTR_LIST_DENTRY, 1,
[xattr_handler->list() wants dentry])
],[
dnl #
dnl # 2.6.32 API
dnl #
AC_MSG_RESULT(no)
AC_MSG_CHECKING(
[whether xattr_handler->list() wants inode])
ZFS_LINUX_TRY_COMPILE([
#include <linux/xattr.h>
size_t list(struct inode *ip, char *lst,
size_t list_size, const char *name,
size_t name_len) { return 0; }
static const struct xattr_handler
xops __attribute__ ((unused)) = {
.list = list,
};
],[
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_XATTR_LIST_INODE, 1,
[xattr_handler->list() wants inode])
],[
AC_MSG_ERROR(
[no; please file a bug report])
])
])
])
])
])
dnl #
dnl # 3.7 API change,
dnl # The posix_acl_{from,to}_xattr functions gained a new
dnl # parameter: user_ns
dnl #
AC_DEFUN([ZFS_AC_KERNEL_POSIX_ACL_FROM_XATTR_USERNS], [
AC_MSG_CHECKING([whether posix_acl_from_xattr() needs user_ns])
ZFS_LINUX_TRY_COMPILE([
#include <linux/cred.h>
#include <linux/fs.h>
#include <linux/posix_acl_xattr.h>
],[
posix_acl_from_xattr(&init_user_ns, NULL, 0);
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_POSIX_ACL_FROM_XATTR_USERNS, 1,
[posix_acl_from_xattr() needs user_ns])
],[
AC_MSG_RESULT(no)
])
])
|
