[lttng-modules.git] / include / wrapper / uaccess.h

/* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
 *
 * wrapper/uaccess.h
 *
 * wrapper around linux/uaccess.h.
 *
 * Copyright (C) 2019 Michael Jeanson <mjeanson@efficios.com>
 */

#ifndef _LTTNG_WRAPPER_UACCESS_H
#define _LTTNG_WRAPPER_UACCESS_H

#include <linux/uaccess.h>
#include <lttng/kernel-version.h>

#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,0,0) || \
	LTTNG_RHEL_KERNEL_RANGE(4,18,0,147,0,0, 4,19,0,0,0,0))

#define VERIFY_READ	0
#define VERIFY_WRITE	1
#define lttng_access_ok(type, addr, size) access_ok(addr, size)

#else /* LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,0,0) */

#define lttng_access_ok(type, addr, size) access_ok(type, addr, size)

#endif /* LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,0,0) */

#endif /* _LTTNG_WRAPPER_UACCESS_H */
Commit	Line	Data
b7cdc182	1	/* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
80bb2600 MJ	2	*
	3	* wrapper/uaccess.h
	4	*
	5	* wrapper around linux/uaccess.h.
	6	*
	7	* Copyright (C) 2019 Michael Jeanson <mjeanson@efficios.com>
	8	*/
	9
	10	#ifndef _LTTNG_WRAPPER_UACCESS_H
	11	#define _LTTNG_WRAPPER_UACCESS_H
	12
	13	#include <linux/uaccess.h>
2df37e95	14	#include <lttng/kernel-version.h>
80bb2600	15
5f4c791e	16	#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,0,0) \|\| \
52cb3b84	17	LTTNG_RHEL_KERNEL_RANGE(4,18,0,147,0,0, 4,19,0,0,0,0))
80bb2600 MJ	18
	19	#define VERIFY_READ 0
	20	#define VERIFY_WRITE 1
	21	#define lttng_access_ok(type, addr, size) access_ok(addr, size)
	22
5f4c791e	23	#else /* LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,0,0) */
80bb2600 MJ	24
	25	#define lttng_access_ok(type, addr, size) access_ok(type, addr, size)
	26
5f4c791e	27	#endif /* LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,0,0) */
80bb2600 MJ	28
80bb2600 MJ	29	#endif /* _LTTNG_WRAPPER_UACCESS_H */