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cpumask: convert struct clock_event_device to cpumask pointers.

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Impact: change calling convention of existing clock_event APIs

struct clock_event_timer's cpumask field gets changed to take pointer,
as does the ->broadcast function.

Another single-patch change.  For safety, we BUG_ON() in
clockevents_register_device() if it's not set.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Rusty Russell
2008-12-13 21:20:26 +10:30
parent 0de26520c7
commit 320ab2b0b1
52 changed files with 63 additions and 61 deletions
Download Patch File Download Diff File Expand all files Collapse all files
kernel/time/clockevents.c
+2
View File
@@ -166,6 +166,8 @@ static void clockevents_notify_released(void)
void clockevents_register_device(struct clock_event_device *dev)
{
BUG_ON(dev->mode != CLOCK_EVT_MODE_UNUSED);
BUG_ON(!dev->cpumask);
/*
* A nsec2cyc multiplicator of 0 is invalid and we'd crash
* on it, so fix it up and emit a warning:
kernel/time/tick-broadcast.c
+1 -1
View File
@@ -150,7 +150,7 @@ static void tick_do_broadcast(cpumask_t mask)
*/
cpu = first_cpu(mask);
td = &per_cpu(tick_cpu_device, cpu);
td->evtdev->broadcast(mask);
td->evtdev->broadcast(&mask);
}
}
kernel/time/tick-common.c
+4 -4
View File
@@ -171,7 +171,7 @@ static void tick_setup_device(struct tick_device *td,
* When the device is not per cpu, pin the interrupt to the
* current cpu:
*/
if (!cpumask_equal(&newdev->cpumask, cpumask))
if (!cpumask_equal(newdev->cpumask, cpumask))
irq_set_affinity(newdev->irq, cpumask);
/*
@@ -202,14 +202,14 @@ static int tick_check_new_device(struct clock_event_device *newdev)
spin_lock_irqsave(&tick_device_lock, flags);
cpu = smp_processor_id();
if (!cpu_isset(cpu, newdev->cpumask))
if (!cpumask_test_cpu(cpu, newdev->cpumask))
goto out_bc;
td = &per_cpu(tick_cpu_device, cpu);
curdev = td->evtdev;
/* cpu local device ? */
if (!cpus_equal(newdev->cpumask, cpumask_of_cpu(cpu))) {
if (!cpumask_equal(newdev->cpumask, cpumask_of(cpu))) {
/*
* If the cpu affinity of the device interrupt can not
@@ -222,7 +222,7 @@ static int tick_check_new_device(struct clock_event_device *newdev)
* If we have a cpu local device already, do not replace it
* by a non cpu local device
*/
if (curdev && cpus_equal(curdev->cpumask, cpumask_of_cpu(cpu)))
if (curdev && cpumask_equal(curdev->cpumask, cpumask_of(cpu)))
goto out_bc;
}