lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

time: Cleanup global variables and move them to the top

Browse Source 
Move global xtime_lock and timekeeping_suspended values up
to the top of timekeeping.c

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>
This commit is contained in:
John Stultz
2011-11-14 11:46:39 -08:00
parent 01f71b47e0
commit 8fcce546be
1 changed files with 12 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

24
kernel/time/timekeeping.c
View File

@@ -73,6 +73,18 @@ struct timekeeper {
static struct timekeeper timekeeper; static struct timekeeper timekeeper;
/*
* This read-write spinlock protects us from races in SMP while
* playing with xtime.
*/
__cacheline_aligned_in_smp DEFINE_SEQLOCK(xtime_lock);
/* flag for if timekeeping is suspended */
int __read_mostly timekeeping_suspended;
/** /**
* timekeeper_setup_internals - Set up internals to use clocksource clock. * timekeeper_setup_internals - Set up internals to use clocksource clock.
* *
@@ -157,18 +169,6 @@ static inline s64 timekeeping_get_ns_raw(void)
return clocksource_cyc2ns(cycle_delta, clock->mult, clock->shift); return clocksource_cyc2ns(cycle_delta, clock->mult, clock->shift);
} }
/*
* This read-write spinlock protects us from races in SMP while
* playing with xtime.
*/
__cacheline_aligned_in_smp DEFINE_SEQLOCK(xtime_lock);
/* flag for if timekeeping is suspended */
int __read_mostly timekeeping_suspended;
/* must hold xtime_lock */ /* must hold xtime_lock */
void timekeeping_leap_insert(int leapsecond) void timekeeping_leap_insert(int leapsecond)
{ {