linux/mm/gup_test.c

#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/uaccess.h>
#include <linux/ktime.h>
#include <linux/debugfs.h>
#include <linux/highmem.h>
#include "gup_test.h"

static void put_back_pages(unsigned int cmd, struct page **pages,
			   unsigned long nr_pages, unsigned int gup_test_flags)
{ … }

static void verify_dma_pinned(unsigned int cmd, struct page **pages,
			      unsigned long nr_pages)
{ … }

static void dump_pages_test(struct gup_test *gup, struct page **pages,
			    unsigned long nr_pages)
{ … }

static int __gup_test_ioctl(unsigned int cmd,
		struct gup_test *gup)
{ … }

static DEFINE_MUTEX(pin_longterm_test_mutex);
static struct page **pin_longterm_test_pages;
static unsigned long pin_longterm_test_nr_pages;

static inline void pin_longterm_test_stop(void)
{ … }

static inline int pin_longterm_test_start(unsigned long arg)
{ … }

static inline int pin_longterm_test_read(unsigned long arg)
{ … }

static long pin_longterm_test_ioctl(struct file *filep, unsigned int cmd,
				    unsigned long arg)
{ … }

static long gup_test_ioctl(struct file *filep, unsigned int cmd,
		unsigned long arg)
{ … }

static int gup_test_release(struct inode *inode, struct file *file)
{ … }

static const struct file_operations gup_test_fops = …;

static int __init gup_test_init(void)
{ … }

late_initcall(gup_test_init);