* Re: How do I raise a thread to realtime priority?
2004-02-12 21:53 How do I raise a thread to realtime priority? Robin Holt
@ 2004-02-12 22:08 ` Matthew Wilcox
2004-02-12 22:17 ` Robin Holt
2004-02-12 23:12 ` Randy.Dunlap
2 siblings, 0 replies; 4+ messages in thread
From: Matthew Wilcox @ 2004-02-12 22:08 UTC (permalink / raw)
To: linux-ia64
On Thu, Feb 12, 2004 at 03:53:57PM -0600, Robin Holt wrote:
> In the 2.4 kernel headers, unistd.h had a _syscall3 that I could
> use to make an extern of the sys_sched_setscheduler raise a tasks
> priority to realtime. With 2.6, the _syscall3 has been replaced
> with static inlines. This all seems well.
>
> Since sys_sched_setscheduler is not in the unistd.h, should I add
> it to unistd.h? Is there a prefered method for exporting/inlining
> syscall entry points?
libc "exports syscall entry points" -- call sched_setscheduler().
That works on 2.4 and 2.6.
--
"Next the statesmen will invent cheap lies, putting the blame upon
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince
himself that the war is just, and will thank God for the better sleep
he enjoys after this process of grotesque self-deception." -- Mark Twain
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: How do I raise a thread to realtime priority?
2004-02-12 21:53 How do I raise a thread to realtime priority? Robin Holt
2004-02-12 22:08 ` Matthew Wilcox
@ 2004-02-12 22:17 ` Robin Holt
2004-02-12 23:12 ` Randy.Dunlap
2 siblings, 0 replies; 4+ messages in thread
From: Robin Holt @ 2004-02-12 22:17 UTC (permalink / raw)
To: linux-ia64
On Thu, Feb 12, 2004 at 10:08:20PM +0000, Matthew Wilcox wrote:
> On Thu, Feb 12, 2004 at 03:53:57PM -0600, Robin Holt wrote:
> > In the 2.4 kernel headers, unistd.h had a _syscall3 that I could
> > use to make an extern of the sys_sched_setscheduler raise a tasks
> > priority to realtime. With 2.6, the _syscall3 has been replaced
> > with static inlines. This all seems well.
> >
> > Since sys_sched_setscheduler is not in the unistd.h, should I add
> > it to unistd.h? Is there a prefered method for exporting/inlining
> > syscall entry points?
>
> libc "exports syscall entry points" -- call sched_setscheduler().
> That works on 2.4 and 2.6.
Maybe I wasn't clear. This is a kernel thread that is trying to
raise priority.
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: How do I raise a thread to realtime priority?
2004-02-12 21:53 How do I raise a thread to realtime priority? Robin Holt
2004-02-12 22:08 ` Matthew Wilcox
2004-02-12 22:17 ` Robin Holt
@ 2004-02-12 23:12 ` Randy.Dunlap
2 siblings, 0 replies; 4+ messages in thread
From: Randy.Dunlap @ 2004-02-12 23:12 UTC (permalink / raw)
To: linux-ia64
On Thu, 12 Feb 2004 16:17:52 -0600 Robin Holt <holt@sgi.com> wrote:
| On Thu, Feb 12, 2004 at 10:08:20PM +0000, Matthew Wilcox wrote:
| > On Thu, Feb 12, 2004 at 03:53:57PM -0600, Robin Holt wrote:
| > > In the 2.4 kernel headers, unistd.h had a _syscall3 that I could
| > > use to make an extern of the sys_sched_setscheduler raise a tasks
| > > priority to realtime. With 2.6, the _syscall3 has been replaced
| > > with static inlines. This all seems well.
| > >
| > > Since sys_sched_setscheduler is not in the unistd.h, should I add
| > > it to unistd.h? Is there a prefered method for exporting/inlining
| > > syscall entry points?
| >
| > libc "exports syscall entry points" -- call sched_setscheduler().
| > That works on 2.4 and 2.6.
|
| Maybe I wasn't clear. This is a kernel thread that is trying to
| raise priority.
I have patches in progress (in -mm) that add this and other syscalls
to include/linux/syscalls.h (for non-arch-specific) and to
include/asm-*/unistd.h for arch-specific syscalls.
--
~Randy
^ permalink raw reply [flat|nested] 4+ messages in thread