UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

ktime: Use macro NSEC_PER_USEC where appropriate 

We've got the macro NSEC_PER_USEC defined in header file
include/linux/time.h. To make the code decent, this patch
replaces the immediate number 1000 to convert bewteen a
time value in microseconds and one in nanoseconds with the
macro NSEC_PER_USEC.

Signed-off-by: Liu Ying <Ying.Liu@freescale.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Daniel Borkmann <dborkman@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: John Stultz <john.stultz@linaro.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
This commit is contained in:
Liu Ying 2013-05-07 16:38:40 +08:00 committed by John Stultz
parent 1eaff67266
commit a44b8bd607
1 changed files with 4 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
include/linux/ktime.h
View File

@ -229,7 +229,8 @@ static inline ktime_t timespec_to_ktime(const struct timespec ts)
static inline ktime_t timeval_to_ktime(const struct timeval tv) static inline ktime_t timeval_to_ktime(const struct timeval tv)
{ {
return (ktime_t) { .tv = { .sec = (s32)tv.tv_sec, return (ktime_t) { .tv = { .sec = (s32)tv.tv_sec,
.nsec = (s32)tv.tv_usec * 1000 } }; .nsec = (s32)(tv.tv_usec *
NSEC_PER_USEC) } };
} }
/** /**
@ -320,12 +321,12 @@ static inline s64 ktime_us_delta(const ktime_t later, const ktime_t earlier)
static inline ktime_t ktime_add_us(const ktime_t kt, const u64 usec) static inline ktime_t ktime_add_us(const ktime_t kt, const u64 usec)
{ {
return ktime_add_ns(kt, usec * 1000); return ktime_add_ns(kt, usec * NSEC_PER_USEC);
} }
static inline ktime_t ktime_sub_us(const ktime_t kt, const u64 usec) static inline ktime_t ktime_sub_us(const ktime_t kt, const u64 usec)
{ {
return ktime_sub_ns(kt, usec * 1000); return ktime_sub_ns(kt, usec * NSEC_PER_USEC);
} }
extern ktime_t ktime_add_safe(const ktime_t lhs, const ktime_t rhs); extern ktime_t ktime_add_safe(const ktime_t lhs, const ktime_t rhs);