diff options
| -rw-r--r-- | drivers/char/ipmi/ipmi_si_intf.c | 40 |
1 files changed, 13 insertions, 27 deletions
diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c index 6b9a0593d2eb..c7cc8538b84a 100644 --- a/drivers/char/ipmi/ipmi_si_intf.c +++ b/drivers/char/ipmi/ipmi_si_intf.c @@ -265,10 +265,10 @@ static void cleanup_ipmi_si(void); #ifdef DEBUG_TIMING void debug_timestamp(char *msg) { - struct timespec t; + struct timespec64 t; - ktime_get_ts(&t); - pr_debug("**%s: %ld.%9.9ld\n", msg, (long) t.tv_sec, t.tv_nsec); + ktime_get_ts64(&t); + pr_debug("**%s: %lld.%9.9ld\n", msg, t.tv_sec, t.tv_nsec); } #else #define debug_timestamp(x) @@ -935,38 +935,25 @@ static void set_run_to_completion(void *send_info, bool i_run_to_completion) } /* - * Use -1 in the nsec value of the busy waiting timespec to tell that - * we are spinning in kipmid looking for something and not delaying - * between checks + * Use -1 as a special constant to tell that we are spinning in kipmid + * looking for something and not delaying between checks */ -static inline void ipmi_si_set_not_busy(struct timespec *ts) -{ - ts->tv_nsec = -1; -} -static inline int ipmi_si_is_busy(struct timespec *ts) -{ - return ts->tv_nsec != -1; -} - +#define IPMI_TIME_NOT_BUSY ns_to_ktime(-1ull) static inline bool ipmi_thread_busy_wait(enum si_sm_result smi_result, const struct smi_info *smi_info, - struct timespec *busy_until) + ktime_t *busy_until) { unsigned int max_busy_us = 0; if (smi_info->si_num < num_max_busy_us) max_busy_us = kipmid_max_busy_us[smi_info->si_num]; if (max_busy_us == 0 || smi_result != SI_SM_CALL_WITH_DELAY) - ipmi_si_set_not_busy(busy_until); - else if (!ipmi_si_is_busy(busy_until)) { - ktime_get_ts(busy_until); - timespec_add_ns(busy_until, max_busy_us * NSEC_PER_USEC); + *busy_until = IPMI_TIME_NOT_BUSY; + else if (*busy_until == IPMI_TIME_NOT_BUSY) { + *busy_until = ktime_get() + max_busy_us * NSEC_PER_USEC; } else { - struct timespec now; - - ktime_get_ts(&now); - if (unlikely(timespec_compare(&now, busy_until) > 0)) { - ipmi_si_set_not_busy(busy_until); + if (unlikely(ktime_get() > *busy_until)) { + *busy_until = IPMI_TIME_NOT_BUSY; return false; } } @@ -988,9 +975,8 @@ static int ipmi_thread(void *data) struct smi_info *smi_info = data; unsigned long flags; enum si_sm_result smi_result; - struct timespec busy_until = { 0, 0 }; + ktime_t busy_until = IPMI_TIME_NOT_BUSY; - ipmi_si_set_not_busy(&busy_until); set_user_nice(current, MAX_NICE); while (!kthread_should_stop()) { int busy_wait; |