Hi,
On Mon, 30 May 2005, randy_dunlap wrote:
> | Index: linux-2.6-mm/include/linux/sched.h
> | ===================================================================
> | --- linux-2.6-mm.orig/include/linux/sched.h 2005-05-31 01:19:01.636591190 +0200
> | +++ linux-2.6-mm/include/linux/sched.h 2005-05-31 01:19:05.913856451 +0200
> | @@ -617,6 +617,7 @@ struct mempolicy;
> | struct task_struct {
> | volatile long state; /* -1 unrunnable, 0 runnable, >0 stopped */
> | struct thread_info *thread_info;
> | + void *stack;
>
> Any reason this is void * instead of being more strongly typed?
> Does the actual type vary?
Yes, on m68k it actually doesn't point to the thread_info at all.
The point of these patches are to allow archs to put the thread_info
structure somewhere else. Archs with a thread register can keep
task_struct and thread_info together and directly accessable via the
thread register. Only because i386 has no usable thread register, doesn't
mean everyone else has to suffer.
> And a general comments about the 4 emails:
> they all have the same subject. :(
I know and I did this intentionally, as these patches were not intended to
be applied, they are based on Al's patches and even these aren't in -mm
yet. I maybe should have added a [RFC].
bye, Roman
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