time: Move raw_time into timekeeper structure
authorJohn Stultz <john.stultz@linaro.org>
Mon, 14 Nov 2011 19:43:49 +0000 (11:43 -0800)
committerJohn Stultz <john.stultz@linaro.org>
Fri, 27 Jan 2012 03:44:14 +0000 (19:44 -0800)
In preparation for locking cleanups, move raw_time into
timekeeper structure.

CC: Thomas Gleixner <tglx@linutronix.de>
CC: Eric Dumazet <eric.dumazet@gmail.com>
CC: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
kernel/time/timekeeping.c

index b30ffe6..fbbc3c7 100644 (file)
@@ -67,7 +67,8 @@ struct timekeeper {
        struct timespec wall_to_monotonic;
        /* time spent in suspend */
        struct timespec total_sleep_time;
-
+       /* The raw monotonic time for the CLOCK_MONOTONIC_RAW posix clock. */
+       struct timespec raw_time;
 };
 
 static struct timekeeper timekeeper;
@@ -164,10 +165,6 @@ __cacheline_aligned_in_smp DEFINE_SEQLOCK(xtime_lock);
 
 
 
-/*
- * The raw monotonic time for the CLOCK_MONOTONIC_RAW posix clock.
- */
-static struct timespec raw_time;
 
 /* flag for if timekeeping is suspended */
 int __read_mostly timekeeping_suspended;
@@ -208,7 +205,7 @@ static void timekeeping_forward_now(void)
        timespec_add_ns(&timekeeper.xtime, nsec);
 
        nsec = clocksource_cyc2ns(cycle_delta, clock->mult, clock->shift);
-       timespec_add_ns(&raw_time, nsec);
+       timespec_add_ns(&timekeeper.raw_time, nsec);
 }
 
 /**
@@ -320,7 +317,7 @@ void getnstime_raw_and_real(struct timespec *ts_raw, struct timespec *ts_real)
 
                seq = read_seqbegin(&xtime_lock);
 
-               *ts_raw = raw_time;
+               *ts_raw = timekeeper.raw_time;
                *ts_real = timekeeper.xtime;
 
                nsecs_raw = timekeeping_get_ns_raw();
@@ -499,7 +496,7 @@ void getrawmonotonic(struct timespec *ts)
        do {
                seq = read_seqbegin(&xtime_lock);
                nsecs = timekeeping_get_ns_raw();
-               *ts = raw_time;
+               *ts = timekeeper.raw_time;
 
        } while (read_seqretry(&xtime_lock, seq));
 
@@ -590,8 +587,8 @@ void __init timekeeping_init(void)
 
        timekeeper.xtime.tv_sec = now.tv_sec;
        timekeeper.xtime.tv_nsec = now.tv_nsec;
-       raw_time.tv_sec = 0;
-       raw_time.tv_nsec = 0;
+       timekeeper.raw_time.tv_sec = 0;
+       timekeeper.raw_time.tv_nsec = 0;
        if (boot.tv_sec == 0 && boot.tv_nsec == 0) {
                boot.tv_sec = timekeeper.xtime.tv_sec;
                boot.tv_nsec = timekeeper.xtime.tv_nsec;
@@ -958,13 +955,13 @@ static cycle_t logarithmic_accumulation(cycle_t offset, int shift)
 
        /* Accumulate raw time */
        raw_nsecs = timekeeper.raw_interval << shift;
-       raw_nsecs += raw_time.tv_nsec;
+       raw_nsecs += timekeeper.raw_time.tv_nsec;
        if (raw_nsecs >= NSEC_PER_SEC) {
                u64 raw_secs = raw_nsecs;
                raw_nsecs = do_div(raw_secs, NSEC_PER_SEC);
-               raw_time.tv_sec += raw_secs;
+               timekeeper.raw_time.tv_sec += raw_secs;
        }
-       raw_time.tv_nsec = raw_nsecs;
+       timekeeper.raw_time.tv_nsec = raw_nsecs;
 
        /* Accumulate error between NTP and clock interval */
        timekeeper.ntp_error += tick_length << shift;