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

/* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
 *
 * wrapper/fdtable.h
 *
 * Copyright (C) 2013 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
 */

#ifndef _LTTNG_WRAPPER_FDTABLE_H
#define _LTTNG_WRAPPER_FDTABLE_H

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

#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(6,7,0))
static inline
struct file *lttng_lookup_fdget_rcu(unsigned int fd)
{
	return lookup_fdget_rcu(fd);
}

#elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,11,0))
static inline
struct file *lttng_lookup_fdget_rcu(unsigned int fd)
{
	struct file* file = lookup_fd_rcu(fd);

	if (unlikely(!file || !get_file_rcu(file)))
		return NULL;
	return file;
}
#else
static inline
struct file *lttng_lookup_fdget_rcu(unsigned int fd)
{
	struct file* file = fcheck(fd);

	if (unlikely(!file || !get_file_rcu(file)))
		return NULL;
	return file;
}
#endif

#endif /* _LTTNG_WRAPPER_FDTABLE_H */
Commit	Line	Data
	1	/* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
	2	*
	3	* wrapper/fdtable.h
	4	*
	5	* Copyright (C) 2013 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
	6	*/
	7
	8	#ifndef _LTTNG_WRAPPER_FDTABLE_H
	9	#define _LTTNG_WRAPPER_FDTABLE_H
	10
	11	#include <lttng/kernel-version.h>
	12	#include <linux/fdtable.h>
	13	#include <linux/sched.h>
	14
	15	#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(6,7,0))
	16	static inline
	17	struct file *lttng_lookup_fdget_rcu(unsigned int fd)
	18	{
	19	return lookup_fdget_rcu(fd);
	20	}
	21
	22	#elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,11,0))
	23	static inline
	24	struct file *lttng_lookup_fdget_rcu(unsigned int fd)
	25	{
	26	struct file* file = lookup_fd_rcu(fd);
	27
	28	if (unlikely(!file \|\| !get_file_rcu(file)))
	29	return NULL;
	30	return file;
	31	}
	32	#else
	33	static inline
	34	struct file *lttng_lookup_fdget_rcu(unsigned int fd)
	35	{
	36	struct file* file = fcheck(fd);
	37
	38	if (unlikely(!file \|\| !get_file_rcu(file)))
	39	return NULL;
	40	return file;
	41	}
	42	#endif
	43
	44	#endif /* _LTTNG_WRAPPER_FDTABLE_H */