diff options
| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2018-03-20 10:11:28 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2018-04-06 09:28:50 +0200 |
| commit | efefc97736e6f3261879bc9dddcb161224a455f5 (patch) | |
| tree | 21cfd61eb7bad8422a62bf3d539f7a3ae1b21cad | |
| parent | sched: idle: Do not stop the tick before cpuidle_idle_call() (diff) | |
| download | linux-efefc97736e6f3261879bc9dddcb161224a455f5.tar.xz linux-efefc97736e6f3261879bc9dddcb161224a455f5.zip | |
jiffies: Introduce USER_TICK_USEC and redefine TICK_USEC
Since the subsequent changes will need a TICK_USEC definition
analogous to TICK_NSEC, rename the existing TICK_USEC as
USER_TICK_USEC, update its users and redefine TICK_USEC
accordingly.
Suggested-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
| -rw-r--r-- | drivers/net/ethernet/sfc/mcdi.c | 2 | ||||
| -rw-r--r-- | include/linux/jiffies.h | 7 | ||||
| -rw-r--r-- | kernel/time/ntp.c | 2 |
3 files changed, 7 insertions, 4 deletions
diff --git a/drivers/net/ethernet/sfc/mcdi.c b/drivers/net/ethernet/sfc/mcdi.c index 9c2567b0d93e..dfad93fca0a6 100644 --- a/drivers/net/ethernet/sfc/mcdi.c +++ b/drivers/net/ethernet/sfc/mcdi.c @@ -375,7 +375,7 @@ static int efx_mcdi_poll(struct efx_nic *efx) * because generally mcdi responses are fast. After that, back off * and poll once a jiffy (approximately) */ - spins = TICK_USEC; + spins = USER_TICK_USEC; finish = jiffies + MCDI_RPC_TIMEOUT; while (1) { diff --git a/include/linux/jiffies.h b/include/linux/jiffies.h index 9385aa57497b..a27cf6652327 100644 --- a/include/linux/jiffies.h +++ b/include/linux/jiffies.h @@ -62,8 +62,11 @@ extern int register_refined_jiffies(long clock_tick_rate); /* TICK_NSEC is the time between ticks in nsec assuming SHIFTED_HZ */ #define TICK_NSEC ((NSEC_PER_SEC+HZ/2)/HZ) -/* TICK_USEC is the time between ticks in usec assuming fake USER_HZ */ -#define TICK_USEC ((1000000UL + USER_HZ/2) / USER_HZ) +/* TICK_USEC is the time between ticks in usec assuming SHIFTED_HZ */ +#define TICK_USEC ((USEC_PER_SEC + HZ/2) / HZ) + +/* USER_TICK_USEC is the time between ticks in usec assuming fake USER_HZ */ +#define USER_TICK_USEC ((1000000UL + USER_HZ/2) / USER_HZ) #ifndef __jiffy_arch_data #define __jiffy_arch_data diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c index 8d70da1b9a0d..a09ded765f6c 100644 --- a/kernel/time/ntp.c +++ b/kernel/time/ntp.c @@ -31,7 +31,7 @@ /* USER_HZ period (usecs): */ -unsigned long tick_usec = TICK_USEC; +unsigned long tick_usec = USER_TICK_USEC; /* SHIFTED_HZ period (nsecs): */ unsigned long tick_nsec; |