malhuda/msm-4.14
1
0
Fork 0
mirror of https://github.com/rd-stuffs/msm-4.14.git synced 2025-02-20 11:45:48 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

timekeeping: Simplify getboottime()

Browse Source 
Subtracting plain nsec values and converting to timespec is simpler
than the whole timespec math. Not really fastpath code, so the
division is not an issue.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: John Stultz <john.stultz@linaro.org>
This commit is contained in:
Thomas Gleixner 2014-07-16 21:04:58 +00:00 committed by John Stultz
parent 48f18fd6ad
commit 02cba1598a
1 changed files with 2 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
kernel/time/timekeeping.c
View File

@ -1525,14 +1525,9 @@ out:
void getboottime(struct timespec *ts) void getboottime(struct timespec *ts)
{ {
struct timekeeper *tk = &tk_core.timekeeper; struct timekeeper *tk = &tk_core.timekeeper;
struct timespec boottime = { ktime_t t = ktime_sub(tk->offs_real, tk->offs_boot);
.tv_sec = tk->wall_to_monotonic.tv_sec +
tk->total_sleep_time.tv_sec,
.tv_nsec = tk->wall_to_monotonic.tv_nsec +
tk->total_sleep_time.tv_nsec
};
set_normalized_timespec(ts, -boottime.tv_sec, -boottime.tv_nsec); *ts = ktime_to_timespec(t);
} }
EXPORT_SYMBOL_GPL(getboottime); EXPORT_SYMBOL_GPL(getboottime);