Messages in this thread | | | Date | Wed, 15 Feb 2012 20:47:57 +0000 | From | Matthew Garrett <> | Subject | Re: [PATCH] hrtimers: Special-case zero length sleeps |
| |
On Wed, Feb 15, 2012 at 09:46:27PM +0100, Thomas Gleixner wrote:
> Dammit, we cannot come up with a reasonable definition for special > casing that stuff simply because you cannot draw a clear boundary what > to special case and what not. And there is no sensible definition for > what to do - return right away or go through schedule() or what ever. > > sleep(0) is as pointless as sched_yield() and it's about time that we > stop to create a fucking mess in the kernel just because user space > programmers refuse to understand how an operating system works and how > proper programming should be done.
Ok. I'll work on finding how prevelant it is and see if we can kill it off in userspace.
-- Matthew Garrett | mjg59@srcf.ucam.org
| |