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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2008-02-01 21:27:02 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-02-04 13:14:07 +0000 |
| commit | 66a2c077c36ee5c56e77ba3757702c4464011da6 (patch) | |
| tree | 7a6d3f59e540f26f866fe7ed38ad01a01311a1a4 /arch/arm | |
| parent | 2f65baff3ab546d011b0e3f944eccd1ec5816d5d (diff) | |
| download | linux-66a2c077c36ee5c56e77ba3757702c4464011da6.tar.gz linux-66a2c077c36ee5c56e77ba3757702c4464011da6.tar.bz2 linux-66a2c077c36ee5c56e77ba3757702c4464011da6.zip | |
[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>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/common/time-acorn.c | 2 | ||||
| -rw-r--r-- | arch/arm/mach-at91/at91sam926x_time.c | 3 | ||||
| -rw-r--r-- | arch/arm/plat-iop/time.c | 4 | ||||
| -rw-r--r-- | arch/arm/plat-s3c24xx/time.c | 2 |
4 files changed, 0 insertions, 11 deletions
diff --git a/arch/arm/common/time-acorn.c b/arch/arm/common/time-acorn.c index 34038eccbba9..d544da414731 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 5c090c9442f5..e38d23770992 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 ba3d21d8fba3..6fe481ff4fdf 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 2ec1daaa0e53..766473b3f98b 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; } |