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 --- Changes in v2- Make commit message clearer.
drivers/mtd/tests/speedtest.c | 10 +++++----- drivers/mtd/tests/torturetest.c | 10 +++++----- 2 files changed, 10 insertions(+), 10 deletions(-)
diff --git a/drivers/mtd/tests/speedtest.c b/drivers/mtd/tests/speedtest.c index 5a6f31a..0b89418 100644 --- a/drivers/mtd/tests/speedtest.c +++ b/drivers/mtd/tests/speedtest.c @@ -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; diff --git a/drivers/mtd/tests/torturetest.c b/drivers/mtd/tests/torturetest.c index e5d6e6d..93c2729 100644 --- a/drivers/mtd/tests/torturetest.c +++ b/drivers/mtd/tests/torturetest.c @@ -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);