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Linux 5.0 compat: access_ok() drops 'type' parameter

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access_ok no longer needs a 'type' parameter in the 5.0 kernel.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tony Hutter <hutter2@llnl.gov>
Closes #8261
This commit is contained in:
Tony Hutter
2019-01-10 11:03:40 -08:00
committed by Brian Behlendorf
parent 5cb46f6a66
commit 77e50c3070
4 changed files with 31 additions and 2 deletions
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config/kernel-access-ok-type.m4
+21
View File
@@ -0,0 +1,21 @@
dnl #
dnl # Linux 5.0: access_ok() drops 'type' parameter:
dnl #
dnl # - access_ok(type, addr, size)
dnl # + access_ok(addr, size)
dnl #
AC_DEFUN([ZFS_AC_KERNEL_ACCESS_OK_TYPE], [
AC_MSG_CHECKING([whether access_ok() has 'type' parameter])
ZFS_LINUX_TRY_COMPILE([
#include <linux/uaccess.h>
],[
const void __user __attribute__((unused)) *addr = (void *) 0xdeadbeef;
unsigned long __attribute__((unused)) size = 1;
int error __attribute__((unused)) = access_ok(0, addr, size);
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_ACCESS_OK_TYPE, 1, [kernel has access_ok with 'type' parameter])
],[
AC_MSG_RESULT(no)
])
])
config/kernel.m4
+1
View File
@@ -4,6 +4,7 @@ dnl #
AC_DEFUN([ZFS_AC_CONFIG_KERNEL], [
ZFS_AC_KERNEL
ZFS_AC_QAT
ZFS_AC_KERNEL_ACCESS_OK_TYPE
ZFS_AC_TEST_MODULE
ZFS_AC_KERNEL_MISC_MINOR
ZFS_AC_KERNEL_OBJTOOL