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Re: Experiences with cvs runtime

From: Martin Hunt <hunt at redhat dot com>
To: Ananth N Mavinakayanahalli <amavin at redhat dot com>
Cc: ananth at in dot ibm dot com, SystemTAP <systemtap at sources dot redhat dot com>
Date: Thu, 28 Apr 2005 09:35:47 -0700
Subject: Re: Experiences with cvs runtime
Organization: Red Hat Inc.
References: <426FEBDE.7010409@redhat.com> <1114634887.5170.45.camel@tiger> <20050427214435.GA4768@in.ibm.com> <1114703676.5034.1.camel@tiger> <42710CBE.2080402@redhat.com>

On Thu, 2005-04-28 at 12:18 -0400, Ananth N Mavinakayanahalli wrote:

> Well, kprobes uses spin_lock_irqsave/irqrestore() during reg/unreg and
> spin_lock/unlock() during probe processing; and spin_lock() and friends
> implicitly disable/enable preemption.

OK. I was confused because preempt_count() returns 0 in kprobes.

Martin

References:
- Experiences with cvs runtime
  - From: Ananth N Mavinakayanahalli
- Re: Experiences with cvs runtime
  - From: Martin Hunt
- Re: Experiences with cvs runtime
  - From: Ananth N Mavinakayanahalli
- Re: Experiences with cvs runtime
  - From: Martin Hunt
- Re: Experiences with cvs runtime
  - From: Ananth N Mavinakayanahalli

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