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| author | Torben Hohn <torbenh@gmx.de> | 2011-01-27 16:00:22 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2011-01-31 14:55:46 +0100 |
| commit | 4ea1b72551d052a3993ef72ce06ecf5bdd125859 (patch) | |
| tree | 7062b5bfde1c3a1d417d5e144964baa0fc76620c | |
| parent | bb1dfc1cf6c51ca42f7c05029a6f06df9092a0fc (diff) | |
| download | blackbird-op-linux-4ea1b72551d052a3993ef72ce06ecf5bdd125859.tar.gz blackbird-op-linux-4ea1b72551d052a3993ef72ce06ecf5bdd125859.zip | |
sparc: Switch do_timer() to xtime_update()
xtime_update() takes the xtime_lock itself.
pcic_clear_clock_irq() and clear_clock_irq do not need
to be protected by xtime_lock.
Signed-off-by: Torben Hohn <torbenh@gmx.de>
Acked-by: David S. Miller <davem@davemloft.net>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: johnstul@us.ibm.com
Cc: hch@infradead.org
Cc: yong.zhang0@gmail.com
LKML-Reference: <20110127150022.23248.80369.stgit@localhost>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| -rw-r--r-- | arch/sparc/kernel/pcic.c | 4 | ||||
| -rw-r--r-- | arch/sparc/kernel/time_32.c | 9 |
2 files changed, 3 insertions, 10 deletions
diff --git a/arch/sparc/kernel/pcic.c b/arch/sparc/kernel/pcic.c index aeaa09a3c655..2cdc131b50ac 100644 --- a/arch/sparc/kernel/pcic.c +++ b/arch/sparc/kernel/pcic.c @@ -700,10 +700,8 @@ static void pcic_clear_clock_irq(void) static irqreturn_t pcic_timer_handler (int irq, void *h) { - write_seqlock(&xtime_lock); /* Dummy, to show that we remember */ pcic_clear_clock_irq(); - do_timer(1); - write_sequnlock(&xtime_lock); + xtime_update(1); #ifndef CONFIG_SMP update_process_times(user_mode(get_irq_regs())); #endif diff --git a/arch/sparc/kernel/time_32.c b/arch/sparc/kernel/time_32.c index 9c743b1886ff..4211bfc9bcad 100644 --- a/arch/sparc/kernel/time_32.c +++ b/arch/sparc/kernel/time_32.c @@ -85,7 +85,7 @@ int update_persistent_clock(struct timespec now) /* * timer_interrupt() needs to keep up the real-time clock, - * as well as call the "do_timer()" routine every clocktick + * as well as call the "xtime_update()" routine every clocktick */ #define TICK_SIZE (tick_nsec / 1000) @@ -96,14 +96,9 @@ static irqreturn_t timer_interrupt(int dummy, void *dev_id) profile_tick(CPU_PROFILING); #endif - /* Protect counter clear so that do_gettimeoffset works */ - write_seqlock(&xtime_lock); - clear_clock_irq(); - do_timer(1); - - write_sequnlock(&xtime_lock); + xtime_update(1); #ifndef CONFIG_SMP update_process_times(user_mode(get_irq_regs())); |
