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| author | Thomas Gleixner <tglx@linutronix.de> | 2012-11-21 20:31:52 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2012-11-21 20:31:52 +0100 |
| commit | 9c3f9e281697d02889c3b08922f3b30be75f56c2 (patch) | |
| tree | e9f3d68e0019a47b982e2b8644f70eb66a3eff3c /kernel/time/timekeeping.c | |
| parent | b8f61116c1ce342804a0897b0a80eb4df5f19453 (diff) | |
| parent | d6ad418763888f617ac5b4849823e4cd670df1dd (diff) | |
| download | blackbird-obmc-linux-9c3f9e281697d02889c3b08922f3b30be75f56c2.tar.gz blackbird-obmc-linux-9c3f9e281697d02889c3b08922f3b30be75f56c2.zip | |
Merge branch 'fortglx/3.8/time' of git://git.linaro.org/people/jstultz/linux into timers/core
Fix trivial conflicts in: kernel/time/tick-sched.c
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/time/timekeeping.c')
| -rw-r--r-- | kernel/time/timekeeping.c | 14 |
1 files changed, 3 insertions, 11 deletions
diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c index e424970bb562..4c7de02eacdc 100644 --- a/kernel/time/timekeeping.c +++ b/kernel/time/timekeeping.c @@ -25,12 +25,6 @@ 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; @@ -1299,9 +1293,7 @@ struct timespec get_monotonic_coarse(void) } /* - * The 64-bit jiffies value is not atomic - you MUST NOT read it - * without sampling the sequence number in xtime_lock. - * jiffies is defined in the linker script... + * Must hold jiffies_lock */ void do_timer(unsigned long ticks) { @@ -1389,7 +1381,7 @@ EXPORT_SYMBOL_GPL(ktime_get_monotonic_offset); */ void xtime_update(unsigned long ticks) { - write_seqlock(&xtime_lock); + write_seqlock(&jiffies_lock); do_timer(ticks); - write_sequnlock(&xtime_lock); + write_sequnlock(&jiffies_lock); } |
