From 66a2c077c36ee5c56e77ba3757702c4464011da6 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Fri, 1 Feb 2008 21:27:02 +0000 Subject: [ARM] xtime_seqlock: fix more ARM machines for xtime deadlocking move update_process_times() out from under xtime_lock. Signed-off-by: Peter Zijlstra Signed-off-by: Russell King --- arch/arm/common/time-acorn.c | 2 -- arch/arm/mach-at91/at91sam926x_time.c | 3 --- arch/arm/plat-iop/time.c | 4 ---- arch/arm/plat-s3c24xx/time.c | 2 -- 4 files changed, 11 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/common/time-acorn.c b/arch/arm/common/time-acorn.c index 34038eccbba..d544da41473 100644 --- a/arch/arm/common/time-acorn.c +++ b/arch/arm/common/time-acorn.c @@ -69,9 +69,7 @@ void __init ioctime_init(void) 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 5c090c9442f..e38d2377099 100644 --- a/arch/arm/mach-at91/at91sam926x_time.c +++ b/arch/arm/mach-at91/at91sam926x_time.c @@ -49,8 +49,6 @@ static irqreturn_t at91sam926x_timer_interrupt(int irq, void *dev_id) 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 @@ static irqreturn_t at91sam926x_timer_interrupt(int irq, void *dev_id) 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 ba3d21d8fba..6fe481ff4fd 100644 --- a/arch/arm/plat-iop/time.c +++ b/arch/arm/plat-iop/time.c @@ -57,8 +57,6 @@ unsigned long iop_gettimeoffset(void) 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 @@ iop_timer_interrupt(int irq, void *dev_id) 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 2ec1daaa0e5..766473b3f98 100644 --- a/arch/arm/plat-s3c24xx/time.c +++ b/arch/arm/plat-s3c24xx/time.c @@ -130,9 +130,7 @@ static unsigned long s3c2410_gettimeoffset (void) static irqreturn_t s3c2410_timer_interrupt(int irq, void *dev_id) { - write_seqlock(&xtime_lock); timer_tick(); - write_sequnlock(&xtime_lock); return IRQ_HANDLED; } -- cgit v1.2.3-70-g09d2