redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

mtd: tests: Replace timeval with ktime_t 

Changes the 32-bit time type timeval to the 64-bit time type
ktime_t, since 32-bit systems using struct timeval will break in the
year 2038. Correspondingly change do_gettimeofday() to ktime_get()
since ktime_get returns a ktime_t, but do_gettimeofday returns a
struct timeval.Here, ktime_get() is used instead of ktime_get_real()
since ktime_get() uses monotonic clock.

Signed-off-by: Shraddha Barke <shraddha.6596@gmail.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
hifive-unleashed-5.1
Shraddha Barke 2015-10-22 20:29:54 +05:30 committed by Brian Norris
parent e278fc71b2
commit af30c0a00a
2 changed files with 10 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/mtd/tests/speedtest.c
View File

@ -22,6 +22,7 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/init.h>
#include <linux/ktime.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/err.h>
@ -49,7 +50,7 @@ static int pgsize;
static int ebcnt;
static int pgcnt;
static int goodebcnt;
static struct timeval start, finish;
static ktime_t start, finish;
static int multiblock_erase(int ebnum, int blocks)
{
@ -168,12 +169,12 @@ static int read_eraseblock_by_2pages(int ebnum)
static inline void start_timing(void)
{
do_gettimeofday(&start);
start = ktime_get();
}
static inline void stop_timing(void)
{
do_gettimeofday(&finish);
finish = ktime_get();
}
static long calc_speed(void)
@ -181,8 +182,7 @@ static long calc_speed(void)
uint64_t k;
long ms;
ms = (finish.tv_sec - start.tv_sec) * 1000 +
(finish.tv_usec - start.tv_usec) / 1000;
ms = ktime_ms_delta(finish, start);
if (ms == 0)
return 0;
k = (uint64_t)goodebcnt * (mtd->erasesize / 1024) * 1000;

10
drivers/mtd/tests/torturetest.c
View File

@ -26,6 +26,7 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/init.h>
#include <linux/ktime.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/err.h>
@ -79,18 +80,18 @@ static unsigned char *check_buf;
static unsigned int erase_cycles;
static int pgsize;
static struct timeval start, finish;
static ktime_t start, finish;
static void report_corrupt(unsigned char *read, unsigned char *written);
static inline void start_timing(void)
{
do_gettimeofday(&start);
start = ktime_get();
}
static inline void stop_timing(void)
{
do_gettimeofday(&finish);
finish = ktime_get();
}
/*
@ -333,8 +334,7 @@ static int __init tort_init(void)
long ms;
stop_timing();
ms = (finish.tv_sec - start.tv_sec) * 1000 +
(finish.tv_usec - start.tv_usec) / 1000;
ms = ktime_ms_delta(finish, start);
pr_info("%08u erase cycles done, took %lu "
"milliseconds (%lu seconds)\n",
erase_cycles, ms, ms / 1000);