Re: [PATCH 0/2] Markers Implementation for RCU Tracing

From: Paul E. McKenney
Date: Thu Nov 29 2007 - 20:36:22 EST


On Fri, Nov 30, 2007 at 12:11:28AM +0530, K. Prasad wrote:
> Hi,
> Please review the ensuing set of patches which convert the
> existing RCU tracing mechanism for Preempt RCU and RCU Boost into
> markers.
>
> These patches are based upon the 2.6.24-rc2-rt1 kernel tree.
>
> Along with marker transition, the RCU Tracing infrastructure has also
> been modularised to be built as a kernel module, thereby enabling
> runtime changes to the RCU Tracing infrastructure.
>
> Patch [1/2] - Patch that converts the Preempt RCU tracing in
> rcupreempt.c into markers.
>
> Patch [1/2] - Patch that converts the Preempt RCU Boost tracing in
> rcupreempt-boost.c into markers.

Looks good to me, though I do not pretend to understand the markers
implementation. I presume that the markers implementation forces the
varargs usage -- though the markers do seem quite a bit nicer in allowing
the formatting to be specified more naturally.

Thanx, Paul
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