Y2038 June 2015

y2038@lists.linaro.org

26 participants
64 discussions

[PATCH v2] xen/pcifront: Remove usage of struct timeval

by Tina Ruchandani

struct timeval uses a 32-bit field for representing seconds, which will overflow in the year 2038 and beyond. This patch replaces struct timeval with 64-bit ktime_t which is 2038 safe. The patch is part of a larger effort to remove instances of 32-bit timekeeping variables (timeval, time_t and timespec) from the kernel. Signed-off-by: Tina Ruchandani <ruchandani.tina(a)gmail.com> Suggested-by: Arnd Bergmann <arnd(a)arndb.de> -- Changes in v2: - Use monotonic time (ktime_get_ns()) instead of real time since we only care about elapsed delta here. - Use macro ktime_get_ns() instead of getting ktime_t and converting it to ns. --- drivers/pci/xen-pcifront.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/drivers/pci/xen-pcifront.c b/drivers/pci/xen-pcifront.c index 7cfd2db..c4796c8 100644 --- a/drivers/pci/xen-pcifront.c +++ b/drivers/pci/xen-pcifront.c @@ -20,6 +20,7 @@ #include <linux/workqueue.h> #include <linux/bitops.h> #include <linux/time.h> +#include <linux/ktime.h> #include <xen/platform_pci.h> #include <asm/xen/swiotlb-xen.h> @@ -115,7 +116,6 @@ static int do_pci_op(struct pcifront_device *pdev, struct xen_pci_op *op) evtchn_port_t port = pdev->evtchn; unsigned irq = pdev->irq; s64 ns, ns_timeout; - struct timeval tv; spin_lock_irqsave(&pdev->sh_info_lock, irq_flags); @@ -132,8 +132,7 @@ static int do_pci_op(struct pcifront_device *pdev, struct xen_pci_op *op) * (in the latter case we end up continually re-executing poll() with a * timeout in the past). 1s difference gives plenty of slack for error. */ - do_gettimeofday(&tv); - ns_timeout = timeval_to_ns(&tv) + 2 * (s64)NSEC_PER_SEC; + ns_timeout = ktime_get_ns() + 2 * (s64)NSEC_PER_SEC; xen_clear_irq_pending(irq); @@ -141,8 +140,7 @@ static int do_pci_op(struct pcifront_device *pdev, struct xen_pci_op *op) (unsigned long *)&pdev->sh_info->flags)) { xen_poll_irq_timeout(irq, jiffies + 3*HZ); xen_clear_irq_pending(irq); - do_gettimeofday(&tv); - ns = timeval_to_ns(&tv); + ns = ktime_get_ns(); if (ns > ns_timeout) { dev_err(&pdev->xdev->dev, "pciback not responding!!!\n"); -- 2.2.0.rc0.207.ga3a616c

8 years, 10 months

Re: [Y2038] [PATCH] fbdev: radeon: Remove 'struct timeval' usage

by Tina Ruchandani

>>> + hz = 1000000/delta; > > This needs to be on of the do_div family. > > Dave. Hi Dave, I build-tested the patch for both 32-bit and 64-bit x86. If my understanding is correct, since the divisor is 64-bit here, the compiler will do "if (delta > 1000000) hz = 0; else hz = 1000000/(s32)delta" automatically? In general, is this a good thumb-rule to follow - use do_div if the dividend is 64-bit, and normal divide operator if only the divisor is 64-bit? Tina

8 years, 10 months

[PATCH v4 06/25] time/posix-timers:Introduce {get, put}_timespec and {get, put}_itimerspec

by Baolin Wang

These are new helper functions that convert between a user timespec/ itimerspec and a kernel timespec64/itimerspec64 structure. These macros can change the types underneath from both ends and it will work efficiently on both 32-bit and 64-bit that can avoid the CONFIG_64BIT macro in syscall functions, and also it can make the syscall functions more simple. Signed-off-by: Baolin Wang <baolin.wang(a)linaro.org> --- kernel/time/posix-timers.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/kernel/time/posix-timers.c b/kernel/time/posix-timers.c index 31ea01f..96efe1d 100644 --- a/kernel/time/posix-timers.c +++ b/kernel/time/posix-timers.c @@ -147,6 +147,35 @@ static struct k_itimer *__lock_timer(timer_t timer_id, unsigned long *flags); __timr; \ }) +#define __get_timespec(kts, uts) \ + (__get_user((kts)->tv_sec, &(uts)->tv_sec) || \ + __get_user((kts)->tv_nsec, &(uts)->tv_nsec)) + +#define __put_timespec(kts, uts) \ + (__put_user((kts)->tv_sec, &(uts)->tv_sec) || \ + __put_user((kts)->tv_nsec, &(uts)->tv_nsec)) + +#define get_timespec(kts, uts) \ + ((access_ok(VERIFY_READ, (uts), sizeof(*(uts))) || \ + __get_timespec((kts), (uts))) ? \ + -EFAULT : 0) + +#define put_timespec(kts, uts) \ + ((access_ok(VERIFY_WRITE, (uts), sizeof(*(uts))) || \ + __put_timespec((kts), (uts))) ? \ + -EFAULT : 0) + +#define get_itimerspec(kit, uit) \ + ((access_ok(VERIFY_READ, (uit), sizeof(*(uit))) || \ + __get_timespec(&(kit)->it_interval, &(uit)->it_interval) || \ + __get_timespec(&(kit)->it_value, &(uit)->it_value))) + +#define put_itimerspec(kit, uit) \ + ((access_ok(VERIFY_WRITE, (uit), sizeof(*(uit))) || \ + __put_timespec(&(kit)->it_interval, &(uit)->it_interval) || \ + __put_timespec(&(kit)->it_value, &(uit)->it_value)) ? \ + -EFAULT : 0) + static int hash(struct signal_struct *sig, unsigned int nr) { return hash_32(hash32_ptr(sig) ^ nr, HASH_BITS(posix_timers_hashtable)); -- 1.7.9.5

8 years, 10 months

Re: [Y2038] [PATCH] fbdev: radeon: Remove 'struct timeval' usage

by Dave Airlie

On 3 June 2015 at 21:59, Tomi Valkeinen <tomi.valkeinen(a)ti.com> wrote: > > > On 25/05/15 07:07, Tina Ruchandani wrote: >> 'struct timeval' uses a 32-bit representation for the >> seconds field which will overflow in the year 2038 and beyond. >> This patch replaces the usage of 'struct timeval' with >> ktime_t which uses a 64-bit time representation and does not >> suffer from the y2038 problem. This patch is part of a larger >> effort to remove all instances of 'struct timeval', 'struct >> timespec', time_t and other 32-bit timekeeping variables >> from the kernel. >> The patch also replaces the use of real time (do_gettimeofday) >> with monotonic time (ktime_get). >> >> Signed-off-by: Tina Ruchandani <ruchandani.tina(a)gmail.com> >> --- >> drivers/video/fbdev/aty/radeon_base.c | 29 ++++++++++++++--------------- >> 1 file changed, 14 insertions(+), 15 deletions(-) >> >> diff --git a/drivers/video/fbdev/aty/radeon_base.c b/drivers/video/fbdev/aty/radeon_base.c >> index 01237c8..9747e9e 100644 >> --- a/drivers/video/fbdev/aty/radeon_base.c >> +++ b/drivers/video/fbdev/aty/radeon_base.c >> @@ -64,6 +64,7 @@ >> #include <linux/slab.h> >> #include <linux/delay.h> >> #include <linux/time.h> >> +#include <linux/ktime.h> >> #include <linux/fb.h> >> #include <linux/ioport.h> >> #include <linux/init.h> >> @@ -461,8 +462,8 @@ static int radeon_probe_pll_params(struct radeonfb_info *rinfo) >> int hTotal, vTotal, num, denom, m, n; >> unsigned long long hz, vclk; >> long xtal; >> - struct timeval start_tv, stop_tv; >> - long total_secs, total_usecs; >> + ktime_t start, stop; >> + s64 delta; >> int i; >> >> /* Ugh, we cut interrupts, bad bad bad, but we want some precision >> @@ -478,7 +479,7 @@ static int radeon_probe_pll_params(struct radeonfb_info *rinfo) >> if (((INREG(CRTC_VLINE_CRNT_VLINE) >> 16) & 0x3ff) == 0) >> break; >> >> - do_gettimeofday(&start_tv); >> + start = ktime_get(); >> >> for(i=0; i<1000000; i++) >> if (((INREG(CRTC_VLINE_CRNT_VLINE) >> 16) & 0x3ff) != 0) >> @@ -487,20 +488,18 @@ static int radeon_probe_pll_params(struct radeonfb_info *rinfo) >> for(i=0; i<1000000; i++) >> if (((INREG(CRTC_VLINE_CRNT_VLINE) >> 16) & 0x3ff) == 0) >> break; >> - >> - do_gettimeofday(&stop_tv); >> - >> + >> + stop = ktime_get(); >> + >> local_irq_enable(); >> >> - total_secs = stop_tv.tv_sec - start_tv.tv_sec; >> - if (total_secs > 10) >> + delta = ktime_us_delta(stop, start); >> + >> + /* Return -1 if more than 10 seconds have elapsed */ >> + if (delta > (10*1000000)) >> return -1; >> - total_usecs = stop_tv.tv_usec - start_tv.tv_usec; >> - total_usecs += total_secs * 1000000; >> - if (total_usecs < 0) >> - total_usecs = -total_usecs; >> - hz = 1000000/total_usecs; >> - >> + hz = 1000000/delta; This needs to be on of the do_div family. Dave.

8 years, 10 months

[PATCH v4 08/25] posix-timers:Convert to the 64bit methods for the timer_gettime syscall function

by Baolin Wang

This patch introduces the timer_get64 method with itimerspec64 type for k_clock structure, that makes it ready for the 2038 year. Convert to the 64bit method with itimerspec64 type for the timer_gettime syscall function, and change the timer_gettime syscall implementation. Also add a default 64bit method for the timer_get64 pointer of k_clock structure, and it will be removed after all the drivers are converted to 64bit methods. Signed-off-by: Baolin Wang <baolin.wang(a)linaro.org> --- include/linux/posix-timers.h | 2 ++ kernel/time/posix-timers.c | 25 ++++++++++++++++++++----- 2 files changed, 22 insertions(+), 5 deletions(-) diff --git a/include/linux/posix-timers.h b/include/linux/posix-timers.h index 907f3fd..e84436b 100644 --- a/include/linux/posix-timers.h +++ b/include/linux/posix-timers.h @@ -113,6 +113,8 @@ struct k_clock { #define TIMER_RETRY 1 void (*timer_get) (struct k_itimer * timr, struct itimerspec * cur_setting); + void (*timer_get64) (struct k_itimer *timr, + struct itimerspec64 *cur_setting); }; extern struct k_clock clock_posix_cpu; diff --git a/kernel/time/posix-timers.c b/kernel/time/posix-timers.c index d00f8ed..2adeb29 100644 --- a/kernel/time/posix-timers.c +++ b/kernel/time/posix-timers.c @@ -140,6 +140,7 @@ static int common_timer_del(struct k_itimer *timer); static enum hrtimer_restart posix_timer_fn(struct hrtimer *data); static struct k_itimer *__lock_timer(timer_t timer_id, unsigned long *flags); +static struct k_clock *clockid_to_kclock(const clockid_t id); #define lock_timer(tid, flags) \ ({ struct k_itimer *__timr; \ @@ -542,6 +543,16 @@ static struct pid *good_sigevent(sigevent_t * event) return task_pid(rtn); } +static void default_timer_get64(struct k_itimer *timr, + struct itimerspec64 *cur_setting64) +{ + struct itimerspec cur_setting; + struct k_clock *kc = clockid_to_kclock(timr->it_clock); + + kc->timer_get(timr, &cur_setting); + *cur_setting64 = itimerspec_to_itimerspec64(&cur_setting); +} + void posix_timers_register_clock(const clockid_t clock_id, struct k_clock *new_clock) { @@ -562,6 +573,9 @@ void posix_timers_register_clock(const clockid_t clock_id, return; } + if (new_clock->timer_get && !new_clock->timer_get64) + new_clock->timer_get64 = default_timer_get64; + posix_clocks[clock_id] = *new_clock; } EXPORT_SYMBOL_GPL(posix_timers_register_clock); @@ -795,7 +809,7 @@ common_timer_get(struct k_itimer *timr, struct itimerspec *cur_setting) cur_setting->it_value = ktime_to_timespec(remaining); } -static int __timer_gettime(timer_t timer_id, struct itimerspec *cur_setting) +static int __timer_gettime(timer_t timer_id, struct itimerspec64 *cur_setting) { struct k_itimer *timr; struct k_clock *kc; @@ -807,10 +821,10 @@ static int __timer_gettime(timer_t timer_id, struct itimerspec *cur_setting) return -EINVAL; kc = clockid_to_kclock(timr->it_clock); - if (WARN_ON_ONCE(!kc || !kc->timer_get)) + if (WARN_ON_ONCE(!kc || !kc->timer_get64)) ret = -EINVAL; else - kc->timer_get(timr, cur_setting); + kc->timer_get64(timr, cur_setting); unlock_timer(timr, flags); return ret; @@ -820,10 +834,11 @@ static int __timer_gettime(timer_t timer_id, struct itimerspec *cur_setting) SYSCALL_DEFINE2(timer_gettime, timer_t, timer_id, struct itimerspec __user *, setting) { - struct itimerspec cur_setting; + struct itimerspec64 cur_setting; + int ret = __timer_gettime(timer_id, &cur_setting); - if (!ret && copy_to_user(setting, &cur_setting, sizeof (cur_setting))) + if (!ret && put_itimerspec(&cur_setting, setting)) return -EFAULT; return ret; -- 1.7.9.5

8 years, 10 months

[PATCH v4 05/25] time:Introduce the do_sys_settimeofday64() function with timespec64 type

by Baolin Wang

Introduce the do_sys_settimeofday64() function with timespec64 type to make it is ready for 2038 issue when setting the time of day. And move the do_sys_settimeofday() function to the timekeeping.h file, that it is convenient to delete it later. Signed-off-by: Baolin Wang <baolin.wang(a)linaro.org> --- include/linux/timekeeping.h | 12 ++++++++++-- kernel/time/time.c | 8 ++++---- 2 files changed, 14 insertions(+), 6 deletions(-) diff --git a/include/linux/timekeeping.h b/include/linux/timekeeping.h index c6d5ae9..89beb62 100644 --- a/include/linux/timekeeping.h +++ b/include/linux/timekeeping.h @@ -11,8 +11,16 @@ extern int timekeeping_suspended; */ extern void do_gettimeofday(struct timeval *tv); extern int do_settimeofday64(const struct timespec64 *ts); -extern int do_sys_settimeofday(const struct timespec *tv, - const struct timezone *tz); +extern int do_sys_settimeofday64(const struct timespec64 *tv, + const struct timezone *tz); +static inline int do_sys_settimeofday(const struct timespec *tv, + const struct timezone *tz) +{ + struct timespec64 ts64; + + ts64 = timespec_to_timespec64(*tv); + return do_sys_settimeofday64(&ts64, tz); +} /* * Kernel time accessors diff --git a/kernel/time/time.c b/kernel/time/time.c index 2c85b77..33c539b 100644 --- a/kernel/time/time.c +++ b/kernel/time/time.c @@ -160,15 +160,15 @@ static inline void warp_clock(void) * various programs will get confused when the clock gets warped. */ -int do_sys_settimeofday(const struct timespec *tv, const struct timezone *tz) +int do_sys_settimeofday64(const struct timespec64 *tv, const struct timezone *tz) { static int firsttime = 1; int error = 0; - if (tv && !timespec_valid(tv)) + if (tv && !timespec64_valid(tv)) return -EINVAL; - error = security_settime(tv, tz); + error = security_settime64(tv, tz); if (error) return error; @@ -182,7 +182,7 @@ int do_sys_settimeofday(const struct timespec *tv, const struct timezone *tz) } } if (tv) - return do_settimeofday(tv); + return do_settimeofday64(tv); return 0; } -- 1.7.9.5

8 years, 10 months

[PATCH v4 03/25] time/hrtimer:Introduce hrtimer_get_res64() with timespec64 type

by Baolin Wang

This patch introduces hrtimer_get_res64() function to get the timer resolution with timespec64 type, and moves the hrtimer_get_res() function into include/linux/hrtimer.h as a 'static inline' helper that just calls hrtimer_get_res64. It is ready for 2038 year when getting the timer resolution by hrtimer_get_res64() function with timespec64 type, and it is convenient to remove the old hrtimer_get_res() function in hrtimer.h file. Signed-off-by: Baolin Wang <baolin.wang(a)linaro.org> --- include/linux/hrtimer.h | 16 +++++++++++++++- kernel/time/hrtimer.c | 10 +++++----- 2 files changed, 20 insertions(+), 6 deletions(-) diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h index 05f6df1..17e9294 100644 --- a/include/linux/hrtimer.h +++ b/include/linux/hrtimer.h @@ -383,7 +383,21 @@ static inline int hrtimer_restart(struct hrtimer *timer) /* Query timers: */ extern ktime_t hrtimer_get_remaining(const struct hrtimer *timer); -extern int hrtimer_get_res(const clockid_t which_clock, struct timespec *tp); +extern int hrtimer_get_res64(const clockid_t which_clock, + struct timespec64 *tp); + +static inline int hrtimer_get_res(const clockid_t which_clock, + struct timespec *tp) +{ + struct timespec64 ts64; + int ret; + + ret = hrtimer_get_res64(which_clock, &ts64); + if (!ret) + *tp = timespec64_to_timespec(ts64); + + return ret; +} extern ktime_t hrtimer_get_next_event(void); diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c index bee0c1f..508d936 100644 --- a/kernel/time/hrtimer.c +++ b/kernel/time/hrtimer.c @@ -1175,24 +1175,24 @@ void hrtimer_init(struct hrtimer *timer, clockid_t clock_id, EXPORT_SYMBOL_GPL(hrtimer_init); /** - * hrtimer_get_res - get the timer resolution for a clock + * hrtimer_get_res64 - get the timer resolution for a clock * @which_clock: which clock to query - * @tp: pointer to timespec variable to store the resolution + * @tp: pointer to timespec64 variable to store the resolution * * Store the resolution of the clock selected by @which_clock in the * variable pointed to by @tp. */ -int hrtimer_get_res(const clockid_t which_clock, struct timespec *tp) +int hrtimer_get_res64(const clockid_t which_clock, struct timespec64 *tp) { struct hrtimer_cpu_base *cpu_base; int base = hrtimer_clockid_to_base(which_clock); cpu_base = raw_cpu_ptr(&hrtimer_bases); - *tp = ktime_to_timespec(cpu_base->clock_base[base].resolution); + *tp = ktime_to_timespec64(cpu_base->clock_base[base].resolution); return 0; } -EXPORT_SYMBOL_GPL(hrtimer_get_res); +EXPORT_SYMBOL_GPL(hrtimer_get_res64); static void __run_hrtimer(struct hrtimer *timer, ktime_t *now) { -- 1.7.9.5

8 years, 10 months

[PATCH v4 02/25] timekeeping:Introduce the current_kernel_time64() function with timespec64 type

by Baolin Wang

This patch adds current_kernel_time64() function with timespec64 type, and makes current_kernel_time() 'static inline' and moves it to timekeeping.h file. It is convenient for user to get the current kernel time with timespec64 type, and delete the current_kernel_time() function easily in timekeeping.h file. That is ready for 2038 when get the current time. Signed-off-by: Baolin Wang <baolin.wang(a)linaro.org> --- include/linux/timekeeping.h | 10 +++++++++- kernel/time/timekeeping.c | 6 +++--- 2 files changed, 12 insertions(+), 4 deletions(-) diff --git a/include/linux/timekeeping.h b/include/linux/timekeeping.h index 3eaae47..c6d5ae9 100644 --- a/include/linux/timekeeping.h +++ b/include/linux/timekeeping.h @@ -18,10 +18,18 @@ extern int do_sys_settimeofday(const struct timespec *tv, * Kernel time accessors */ unsigned long get_seconds(void); -struct timespec current_kernel_time(void); +struct timespec64 current_kernel_time64(void); /* does not take xtime_lock */ struct timespec __current_kernel_time(void); +static inline struct timespec current_kernel_time(void) +{ + struct timespec64 now; + + now = current_kernel_time64(); + return timespec64_to_timespec(now); +} + /* * timespec based interfaces */ diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c index 91db941..8ccc02c 100644 --- a/kernel/time/timekeeping.c +++ b/kernel/time/timekeeping.c @@ -1721,7 +1721,7 @@ struct timespec __current_kernel_time(void) return timespec64_to_timespec(tk_xtime(tk)); } -struct timespec current_kernel_time(void) +struct timespec64 current_kernel_time64(void) { struct timekeeper *tk = &tk_core.timekeeper; struct timespec64 now; @@ -1733,9 +1733,9 @@ struct timespec current_kernel_time(void) now = tk_xtime(tk); } while (read_seqcount_retry(&tk_core.seq, seq)); - return timespec64_to_timespec(now); + return now; } -EXPORT_SYMBOL(current_kernel_time); +EXPORT_SYMBOL(current_kernel_time64); struct timespec64 get_monotonic_coarse64(void) { -- 1.7.9.5

8 years, 10 months

[PATCH v4 01/25] linux/time64.h:Introduce the 'struct itimerspec64' for 64bit

by Baolin Wang

This patch introduces the 'struct itimerspec64' for 64bit to replace itimerspec, and also introduces the conversion methods: itimerspec64_to_itimerspec() and itimerspec_to_itimerspec64(), that makes itimerspec ready for 2038 year. Signed-off-by: Baolin Wang <baolin.wang(a)linaro.org> --- include/linux/time64.h | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) diff --git a/include/linux/time64.h b/include/linux/time64.h index a383147..61dc4cb 100644 --- a/include/linux/time64.h +++ b/include/linux/time64.h @@ -11,11 +11,18 @@ typedef __s64 time64_t; */ #if __BITS_PER_LONG == 64 # define timespec64 timespec +#define itimerspec64 itimerspec #else struct timespec64 { time64_t tv_sec; /* seconds */ long tv_nsec; /* nanoseconds */ }; + +struct itimerspec64 { + struct timespec64 it_interval; /* timer period */ + struct timespec64 it_value; /* timer expiration */ +}; + #endif /* Parameters used to convert the timespec values: */ @@ -43,6 +50,16 @@ static inline struct timespec64 timespec_to_timespec64(const struct timespec ts) return ts; } +static inline struct itimerspec itimerspec64_to_itimerspec(struct itimerspec64 *its64) +{ + return *its64; +} + +static inline struct itimerspec64 itimerspec_to_itimerspec64(struct itimerspec *its) +{ + return *its; +} + # define timespec64_equal timespec_equal # define timespec64_compare timespec_compare # define set_normalized_timespec64 set_normalized_timespec @@ -75,6 +92,24 @@ static inline struct timespec64 timespec_to_timespec64(const struct timespec ts) return ret; } +static inline struct itimerspec itimerspec64_to_itimerspec(struct itimerspec64 *its64) +{ + struct itimerspec ret; + + ret.it_interval = timespec64_to_timespec(its64->it_interval); + ret.it_value = timespec64_to_timespec(its64->it_value); + return ret; +} + +static inline struct itimerspec64 itimerspec_to_itimerspec64(struct itimerspec *its) +{ + struct itimerspec64 ret; + + ret.it_interval = timespec_to_timespec64(its->it_interval); + ret.it_value = timespec_to_timespec64(its->it_value); + return ret; +} + static inline int timespec64_equal(const struct timespec64 *a, const struct timespec64 *b) { -- 1.7.9.5

8 years, 10 months

[PATCH v4 00/25] Convert the posix_clock_operations and k_clock structure to ready for 2038

by Baolin Wang

This patch series changes the 32-bit time types (timespec/itimerspec) to the 64-bit types (timespec64/itimerspec64), since 32-bit time types will break in the year 2038. This patch series introduces new methods with timespec64/itimerspec64 type, and removes the old ones with timespec/itimerspec type for posix_clock_operations and k_clock structure. Baolin Wang (25): time:Introduce struct itimerspec64 timekeeping:Introduce the current_kernel_time64() hrtimer:Introduce hrtimer_get_res64() security: Introduce security_settime64() time:Introduce the do_sys_settimeofday64() posix-timers:Introduce {get,put}_timespec/{get,put}_itimerspec posix-timers: Split up timer_gettime()/timer_settime()/clock_settime()/ clock_gettime()/clock_getres(). posix-timers: Convert timer_gettime()/timer_settime()/clock_settime()/ clock_gettime()/clock_getres() to timespec64/itimerspec64. mmtimer:Convert to timespec64/itimerspec64 alarmtimer:Convert to timespec64/itimerspec64 posix-clock:Convert to timespec64/itimerspec64 time:Introduce timespec64_to_jiffies()/jiffies_to_timespec64() cputime:Introduce cputime_to_timespec64()/timespec64_to_cputime() posix-cpu-timers:Convert to timespec64/itimerspec64 k_clock:Remove timespec/itimerspec arch/powerpc/include/asm/cputime.h | 6 +- arch/s390/include/asm/cputime.h | 8 +- drivers/char/mmtimer.c | 36 +++-- drivers/ptp/ptp_clock.c | 26 +--- include/asm-generic/cputime_jiffies.h | 10 +- include/asm-generic/cputime_nsecs.h | 4 +- include/linux/cputime.h | 16 ++ include/linux/hrtimer.h | 16 +- include/linux/jiffies.h | 21 ++- include/linux/posix-clock.h | 10 +- include/linux/posix-timers.h | 18 +-- include/linux/security.h | 25 +++- include/linux/time64.h | 35 +++++ include/linux/timekeeping.h | 26 +++- kernel/time/alarmtimer.c | 43 +++--- kernel/time/hrtimer.c | 10 +- kernel/time/posix-clock.c | 20 +-- kernel/time/posix-cpu-timers.c | 84 ++++++----- kernel/time/posix-timers.c | 259 +++++++++++++++++++++------------ kernel/time/time.c | 20 +-- kernel/time/timekeeping.c | 6 +- kernel/time/timekeeping.h | 1 - security/commoncap.c | 2 +- security/security.c | 2 +- 24 files changed, 437 insertions(+), 267 deletions(-) -- 1.7.9.5

8 years, 10 months

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Y2038 June 2015