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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2008-01-28 10:16:37 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-01-28 10:17:12 +0000 |
| commit | 193c3cc12583344be01206078d9ad3fec5dbc397 (patch) | |
| tree | 97eb5d6ec88969d21fbf0c5815e3b77e8e1f4aaf /arch/arm/mach-footbridge | |
| parent | 6232be32afa121628c72291ce7eaa24a639905c2 (diff) | |
| download | linux-3.10-193c3cc12583344be01206078d9ad3fec5dbc397.tar.gz linux-3.10-193c3cc12583344be01206078d9ad3fec5dbc397.tar.bz2 linux-3.10-193c3cc12583344be01206078d9ad3fec5dbc397.zip | |
[ARM] Fix timer damage from d3d74453c34f8fd87674a8cf5b8a327c68f22e99
Move the xtime write mode seqlock into timer_tick(), so it only
surrounds the call to do_timer().
This avoids a deadlock in update_process_times() ...
hrtimer_get_softirq_time() which tries to get a read mode seqlock
on xtime, thereby preventing booting.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-footbridge')
| -rw-r--r-- | arch/arm/mach-footbridge/dc21285-timer.c | 4 | ||||
| -rw-r--r-- | arch/arm/mach-footbridge/isa-timer.c | 2 |
2 files changed, 0 insertions, 6 deletions
diff --git a/arch/arm/mach-footbridge/dc21285-timer.c b/arch/arm/mach-footbridge/dc21285-timer.c index 3a63941d43b..b2a21189dd8 100644 --- a/arch/arm/mach-footbridge/dc21285-timer.c +++ b/arch/arm/mach-footbridge/dc21285-timer.c @@ -30,14 +30,10 @@ static unsigned long timer1_gettimeoffset (void) static irqreturn_t timer1_interrupt(int irq, void *dev_id) { - write_seqlock(&xtime_lock); - *CSR_TIMER1_CLR = 0; timer_tick(); - write_sequnlock(&xtime_lock); - return IRQ_HANDLED; } diff --git a/arch/arm/mach-footbridge/isa-timer.c b/arch/arm/mach-footbridge/isa-timer.c index d08d64139d0..a764e01d357 100644 --- a/arch/arm/mach-footbridge/isa-timer.c +++ b/arch/arm/mach-footbridge/isa-timer.c @@ -64,9 +64,7 @@ static unsigned long isa_gettimeoffset(void) static irqreturn_t isa_timer_interrupt(int irq, void *dev_id) { - write_seqlock(&xtime_lock); timer_tick(); - write_sequnlock(&xtime_lock); return IRQ_HANDLED; } |