On Tue, May 19, 2009 at 1:33 AM, Ole Loots wrote:
> Hello to the list,
>
> I got a question about spinlocks. Here is some pseudo-code:
>
> my_external_int_handler(...)
> {
> spin_lock(&my_lock);
> // do things...
> spin_unlock(&my_lock);
> }
>
> my_ioctl_handler(ioctl_value)
> {
> switch(i
Mulyadi Santosa schrieb:
Hi...
Sorry if my earlier post confused some people. What I wanted to say
was actually that spinlock is SMP safe, however, in multicore it makes
code running on a cpu might spin to wait for other code running on
different cpu.
so, to avoid this, perhaps the original pos
On Tue, May 19, 2009 at 10:52 PM, Mulyadi Santosa wrote:
> Hi...
>
> Sorry if my earlier post confused some people. What I wanted to say
> was actually that spinlock is SMP safe, however, in multicore it makes
> code running on a cpu might spin to wait for other code running on
> different cpu.
Hi...
Sorry if my earlier post confused some people. What I wanted to say
was actually that spinlock is SMP safe, however, in multicore it makes
code running on a cpu might spin to wait for other code running on
different cpu.
so, to avoid this, perhaps the original poster could gain better
scala
All,
On Tue, May 19, 2009 at 3:33 AM, raz ben yehuda wrote:
>
> On Tue, 2009-05-19 at 00:49 +0700, Mulyadi Santosa wrote:
> > On Tue, May 19, 2009 at 12:33 AM, Ole Loots wrote:
> > > Hello to the list,
> > >
> > > I got a question about spinlocks. Here is some pseudo-code:
> > >
> > > my_extern
On Tue, May 19, 2009 at 8:49 AM, Pei Lin wrote:
> In my opinion,i think spin lock is used for shot-time lock,if you lock
> long term, cpu will miss the interrupts, i also have the question
> about when we disable local interrupts,can the interrupt be delivered
> to other cpus in SMP system?
Yes, w
In my opinion,i think spin lock is used for shot-time lock,if you lock
long term, cpu will miss the interrupts, i also have the question
about when we disable local interrupts,can the interrupt be delivered
to other cpus in SMP system?
BRs,
Lin
2009/5/19 raz ben yehuda :
>
> On Tue, 2009-05-19 a
On Tue, 2009-05-19 at 00:49 +0700, Mulyadi Santosa wrote:
> On Tue, May 19, 2009 at 12:33 AM, Ole Loots wrote:
> > Hello to the list,
> >
> > I got a question about spinlocks. Here is some pseudo-code:
> >
> > my_external_int_handler(...)
> > {
> > spin_lock(&my_lock);
> > // do things...
> >
On Tue, May 19, 2009 at 12:33 AM, Ole Loots wrote:
> Hello to the list,
>
> I got a question about spinlocks. Here is some pseudo-code:
>
> my_external_int_handler(...)
> {
> spin_lock(&my_lock);
> // do things...
> spin_unlock(&my_lock);
> }
>
> my_ioctl_handler(ioctl_value)
> {
> switch(
Hello to the list,
I got a question about spinlocks. Here is some pseudo-code:
my_external_int_handler(...)
{
spin_lock(&my_lock);
// do things...
spin_unlock(&my_lock);
}
my_ioctl_handler(ioctl_value)
{
switch(ioctl_value)
{
case xy:
spin_lock_irqsave(&my_lock,
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