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Linux 4.7 compat: handler->get() takes both dentry and inode

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Signed-off-by: Chunwei Chen <david.chen@osnexus.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #4665
This commit is contained in:
Chunwei Chen
2016-05-18 13:44:13 -07:00
committed by Brian Behlendorf
parent 278f223668
commit fd4c7b7a73
2 changed files with 64 additions and 28 deletions
Download Patch File Download Diff File Expand all files Collapse all files
config/kernel-xattr-handler.m4
+50 -27
View File
@@ -62,18 +62,17 @@ dnl # Supported xattr handler get() interfaces checked newest to oldest.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_XATTR_HANDLER_GET], [
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 # 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 xattr_handler])
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, const char *name,
void *buffer, size_t size) { return 0; }
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,
@@ -81,23 +80,22 @@ AC_DEFUN([ZFS_AC_KERNEL_XATTR_HANDLER_GET], [
],[
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_XATTR_GET_HANDLER, 1,
AC_DEFINE(HAVE_XATTR_GET_DENTRY_INODE, 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 # 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 dentry])
AC_MSG_CHECKING([whether xattr_handler->get() wants xattr_handler])
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; }
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,
@@ -105,20 +103,23 @@ AC_DEFUN([ZFS_AC_KERNEL_XATTR_HANDLER_GET], [
],[
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_XATTR_GET_DENTRY, 1,
[xattr_handler->get() wants dentry])
AC_DEFINE(HAVE_XATTR_GET_HANDLER, 1,
[xattr_handler->get() wants xattr_handler])
],[
dnl #
dnl # 2.6.32 API
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 inode])
AC_MSG_CHECKING([whether xattr_handler->get() wants dentry])
ZFS_LINUX_TRY_COMPILE([
#include <linux/xattr.h>
int get(struct inode *ip, const char *name,
void *buffer, size_t size) { return 0; }
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,
@@ -126,10 +127,32 @@ AC_DEFUN([ZFS_AC_KERNEL_XATTR_HANDLER_GET], [
],[
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_XATTR_GET_INODE, 1,
[xattr_handler->get() wants inode])
AC_DEFINE(HAVE_XATTR_GET_DENTRY, 1,
[xattr_handler->get() wants dentry])
],[
AC_MSG_ERROR([no; please file a bug report])
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])
])
])
])
])