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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-ebsa110 | |
| parent | 6232be32afa121628c72291ce7eaa24a639905c2 (diff) | |
| download | linux-193c3cc12583344be01206078d9ad3fec5dbc397.tar.gz linux-193c3cc12583344be01206078d9ad3fec5dbc397.tar.bz2 linux-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-ebsa110')
| -rw-r--r-- | arch/arm/mach-ebsa110/core.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/arch/arm/mach-ebsa110/core.c b/arch/arm/mach-ebsa110/core.c index 8c1b5690dfe8..7710e14b5268 100644 --- a/arch/arm/mach-ebsa110/core.c +++ b/arch/arm/mach-ebsa110/core.c @@ -178,8 +178,6 @@ ebsa110_timer_interrupt(int irq, void *dev_id) { u32 count; - write_seqlock(&xtime_lock); - /* latch and read timer 1 */ __raw_writeb(0x40, PIT_CTRL); count = __raw_readb(PIT_T1); @@ -192,8 +190,6 @@ ebsa110_timer_interrupt(int irq, void *dev_id) timer_tick(); - write_sequnlock(&xtime_lock); - return IRQ_HANDLED; } |