boot time scheduling hile atomic

Benjamin Herrenschmidt benh at
Thu Mar 17 09:28:43 EST 2005

On Wed, 2005-03-16 at 23:07 +0900, Takeharu KATO wrote:
> Hi Benjamin:
> I can not figure out why my previous patch is more preferable than
> later one.
> Could you explain the reason of that please.

There may be other kernel bits calling syscall, it sounds saner to
always make sure we don't reschedule when in atomic (though it's dubious
that it's allowed to do syscalls in atomic regions, let's be safe

In fact, we are thinking about consolidating the syscall return path and
the normal irq return path like we did on ppc64.


More information about the Linuxppc-dev mailing list