wrapper/uaccess.h

   1 /* SPDX-License-Identifier: (GPL-2.0 or LGPL-2.1)
   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>
  14 #include <lttng-kernel-version.h>
  15
  16 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,0,0) || \
  17         LTTNG_RHEL_KERNEL_RANGE(4,18,0,147,0,0, 4,19,0,0,0,0))
  18
  19 #define VERIFY_READ     0
  20 #define VERIFY_WRITE    1
  21 #define lttng_access_ok(type, addr, size) access_ok(addr, size)
  22
  23 #else /* LINUX_VERSION_CODE >= KERNEL_VERSION(5,0,0) */
  24
  25 #define lttng_access_ok(type, addr, size) access_ok(type, addr, size)
  26
  27 #endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(5,0,0) */
  28
  29 #endif /* _LTTNG_WRAPPER_UACCESS_H */