[ARM] xtime_seqlock: fix more ARM machines for xtime deadlocking
move update_process_times() out from under xtime_lock.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/common/time-acorn.c b/arch/arm/common/time-acorn.c
index 34038ec..d544da4 100644
--- a/arch/arm/common/time-acorn.c
+++ b/arch/arm/common/time-acorn.c
@@ -69,9 +69,7 @@
static irqreturn_t
ioc_timer_interrupt(int irq, void *dev_id)
{
- write_seqlock(&xtime_lock);
timer_tick();
- write_sequnlock(&xtime_lock);
return IRQ_HANDLED;
}
diff --git a/arch/arm/mach-at91/at91sam926x_time.c b/arch/arm/mach-at91/at91sam926x_time.c
index 5c090c9..e38d237 100644
--- a/arch/arm/mach-at91/at91sam926x_time.c
+++ b/arch/arm/mach-at91/at91sam926x_time.c
@@ -49,8 +49,6 @@
volatile long nr_ticks;
if (at91_sys_read(AT91_PIT_SR) & AT91_PIT_PITS) { /* This is a shared interrupt */
- write_seqlock(&xtime_lock);
-
/* Get number to ticks performed before interrupt and clear PIT interrupt */
nr_ticks = PIT_PICNT(at91_sys_read(AT91_PIT_PIVR));
do {
@@ -58,7 +56,6 @@
nr_ticks--;
} while (nr_ticks);
- write_sequnlock(&xtime_lock);
return IRQ_HANDLED;
} else
return IRQ_NONE; /* not handled */
diff --git a/arch/arm/plat-iop/time.c b/arch/arm/plat-iop/time.c
index ba3d21d..6fe481f 100644
--- a/arch/arm/plat-iop/time.c
+++ b/arch/arm/plat-iop/time.c
@@ -57,8 +57,6 @@
static irqreturn_t
iop_timer_interrupt(int irq, void *dev_id)
{
- write_seqlock(&xtime_lock);
-
write_tisr(1);
while ((signed long)(next_jiffy_time - read_tcr1())
@@ -67,8 +65,6 @@
next_jiffy_time -= ticks_per_jiffy;
}
- write_sequnlock(&xtime_lock);
-
return IRQ_HANDLED;
}
diff --git a/arch/arm/plat-s3c24xx/time.c b/arch/arm/plat-s3c24xx/time.c
index 2ec1daa..766473b 100644
--- a/arch/arm/plat-s3c24xx/time.c
+++ b/arch/arm/plat-s3c24xx/time.c
@@ -130,9 +130,7 @@
static irqreturn_t
s3c2410_timer_interrupt(int irq, void *dev_id)
{
- write_seqlock(&xtime_lock);
timer_tick();
- write_sequnlock(&xtime_lock);
return IRQ_HANDLED;
}