Re: x86: disable preemption in delay_tsc()

* Avi Kivity <[email protected]> wrote:

> You can use preemption notifiers to get a callback when you are 
> preempted.  Not sure what you'd to with that callback, though.

but that should not be needed in this case. Why doesnt the TSC using 
delay loop simply poll the CPU it is on and fix up the TSC?

	Ingo
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Follow-Ups:
- [patch] x86: make delay_tsc() preemptible again
  - From: Ingo Molnar <[email protected]>

References:
- Re: x86: disable preemption in delay_tsc()
  - From: Arjan van de Ven <[email protected]>
- Re: x86: disable preemption in delay_tsc()
  - From: Avi Kivity <[email protected]>

Prev by Date: Re: [PATCH] net/ipv4/arp.c: Fix arp reply when sender ip 0
Next by Date: [patch] x86: make delay_tsc() preemptible again
Previous by thread: Re: x86: disable preemption in delay_tsc()
Next by thread: [patch] x86: make delay_tsc() preemptible again
Index(es):
- Date
- Thread

[Index of Archives] [Kernel Newbies] [Netfilter] [Bugtraq] [Photo] [Stuff] [Gimp] [Yosemite News] [MIPS Linux] [ARM Linux] [Linux Security] [Linux RAID] [Video 4 Linux] [Linux for the blind] [Linux Resources]