On Tue, Jan 05, 2021 at 09:23:11AM +0900, Akira Yokosawa wrote:
> >From e98f36b3a91d406c2375863dc003727bc8153f4f Mon Sep 17 00:00:00 2001
> From: Akira Yokosawa <akiyks@xxxxxxxxx>
> Date: Mon, 4 Jan 2021 21:14:10 +0900
> Subject: [PATCH -perfbook] defer/rcuexercises: Annotate essential QQs
>
> Quick Quizzes in this section should be presented in "nq" builds.
>
> Signed-off-by: Akira Yokosawa <akiyks@xxxxxxxxx>
Applied and pushed, thank you!
However, "make nq" is giving me framed quick quiz questions rather
than the small-font indicators that were there at some time. This
might be the fault of my tools, and I will be upgrading soon anyway.
But I figured I should let you know.
Thanx, Paul
> ---
> defer/rcuexercises.tex | 16 +++++++---------
> 1 file changed, 7 insertions(+), 9 deletions(-)
>
> diff --git a/defer/rcuexercises.tex b/defer/rcuexercises.tex
> index 9438c9e5..476819a9 100644
> --- a/defer/rcuexercises.tex
> +++ b/defer/rcuexercises.tex
> @@ -13,8 +13,7 @@ The \co{rcu_read_lock()}, \co{rcu_read_unlock()}, \co{rcu_dereference()},
> \co{rcu_assign_pointer()}, and \co{synchronize_rcu()} primitives should
> suffice for most of these exercises.
>
> -\QuickQuizSeries{%
> -\QuickQuizB{
> +\EQuickQuiz{
> The statistical-counter implementation shown in
> Listing~\ref{lst:count:Per-Thread Statistical Counters}
> (\path{count_end.c})
> @@ -25,7 +24,7 @@ suffice for most of these exercises.
> (Keep in mind that \co{read_count()}'s scalability will
> necessarily be limited by its need to scan all threads'
> counters.)
> -}\QuickQuizAnswerB{
> +}\EQuickQuizAnswer{
> Hint: place the global variable \co{finalcount} and the
> array \co{counterp[]} into a single RCU-protected struct.
> At initialization time, this structure would be allocated
> @@ -59,9 +58,9 @@ suffice for most of these exercises.
> on
> page~\pageref{sec:together:RCU and Per-Thread-Variable-Based Statistical Counters}
> for more details.
> -}\QuickQuizEndB
> -%
> -\QuickQuizE{
> +}\EQuickQuizEnd
> +
> +\EQuickQuiz{
> Section~\ref{sec:count:Applying Exact Limit Counters}
> showed a fanciful pair of code fragments that dealt with counting
> I/O accesses to removable devices.
> @@ -73,7 +72,7 @@ suffice for most of these exercises.
> (Keep in mind that the performance of the common-case first
> code fragment that does I/O accesses is much more important
> than that of the device-removal code fragment.)
> -}\QuickQuizAnswerE{
> +}\EQuickQuizAnswer{
> Hint: replace the read-acquisitions of the reader-writer lock
> with RCU read-side critical sections, then adjust the
> device-removal code fragment to suit.
> @@ -83,5 +82,4 @@ suffice for most of these exercises.
> on
> Page~\pageref{sec:together:RCU and Counters for Removable I/O Devices}
> for one solution to this problem.
> -}\QuickQuizEndE
> -}
> +}\EQuickQuizEnd
> --
> 2.17.1
>
