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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2008-01-28 05:16:37 -0500
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-01-28 05:17:12 -0500
commit193c3cc12583344be01206078d9ad3fec5dbc397 (patch)
tree97eb5d6ec88969d21fbf0c5815e3b77e8e1f4aaf /arch/arm/mach-omap2
parent6232be32afa121628c72291ce7eaa24a639905c2 (diff)
[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-omap2')
-rw-r--r--arch/arm/mach-omap2/timer-gp.c4
1 files changed, 0 insertions, 4 deletions
diff --git a/arch/arm/mach-omap2/timer-gp.c b/arch/arm/mach-omap2/timer-gp.c
index 8d322c20ccae..3234deedb946 100644
--- a/arch/arm/mach-omap2/timer-gp.c
+++ b/arch/arm/mach-omap2/timer-gp.c
@@ -40,13 +40,9 @@ static inline void omap2_gp_timer_start(unsigned long load_val)
40 40
41static irqreturn_t omap2_gp_timer_interrupt(int irq, void *dev_id) 41static irqreturn_t omap2_gp_timer_interrupt(int irq, void *dev_id)
42{ 42{
43 write_seqlock(&xtime_lock);
44
45 omap_dm_timer_write_status(gptimer, OMAP_TIMER_INT_OVERFLOW); 43 omap_dm_timer_write_status(gptimer, OMAP_TIMER_INT_OVERFLOW);
46 timer_tick(); 44 timer_tick();
47 45
48 write_sequnlock(&xtime_lock);
49
50 return IRQ_HANDLED; 46 return IRQ_HANDLED;
51} 47}
52 48