Float objects are treated as page/column break candidates.
They can cause widowed section titles.
Move a pair of such objects in recently added contents.
Signed-off-by: Akira Yokosawa <akiyks@xxxxxxxxx>
---
defer/rcuusage.tex | 30 +++++++++++++++---------------
1 file changed, 15 insertions(+), 15 deletions(-)
diff --git a/defer/rcuusage.tex b/defer/rcuusage.tex
index 01342fda..9f2a428e 100644
--- a/defer/rcuusage.tex
+++ b/defer/rcuusage.tex
@@ -6,6 +6,14 @@
\label{sec:defer:RCU Usage}
\OriginallyPublished{Section}{sec:defer:RCU Usage}{RCU Usage}{Linux Weekly News}{PaulEMcKenney2008WhatIsRCUUsage}
+This section answers the question ``What is RCU?'' from the viewpoint
+of the uses to which RCU can be put.
+Because RCU is most frequently used to replace some existing mechanism,
+we look at it primarily in terms of its relationship to such mechanisms,
+as listed in \cref{tab:defer:RCU Usage}.
+Following the sections listed in this table,
+\cref{sec:defer:RCU Usage Summary} provides a summary.
+
\begin{table}
\renewcommand*{\arraystretch}{1.2}
\centering
@@ -40,14 +48,6 @@ Quasi multi-version concurrency control (MVCC) &
\label{tab:defer:RCU Usage}
\end{table}
-This section answers the question ``What is RCU?'' from the viewpoint
-of the uses to which RCU can be put.
-Because RCU is most frequently used to replace some existing mechanism,
-we look at it primarily in terms of its relationship to such mechanisms,
-as listed in \cref{tab:defer:RCU Usage}.
-Following the sections listed in this table,
-\cref{sec:defer:RCU Usage Summary} provides a summary.
-
\subsubsection{RCU for Pre-BSD Routing}
\label{sec:defer:RCU for Pre-BSD Routing}
@@ -414,13 +414,6 @@ was shown in the previous sections.
\subsubsection{Phased State Change}
\label{sec:defer:Phased State Change}
-\begin{figure}
-\centering
-\resizebox{\twocolumnwidth}{!}{\includegraphics{defer/RCUphasedstatechange}}
-\caption{Phased State Change for Maintenance Operation}
-\label{fig:defer:Phased State Change for Maintenance Operation}
-\end{figure}
-
\Cref{fig:defer:Phased State Change for Maintenance Operation}
shows a timeline for an example phased state change to efficiently
handle maintenance operations.
@@ -431,6 +424,13 @@ operations must be undertaken carefully, taking into account added
complexities due to their running concurrently with that maintenance
operation.
+\begin{figure}
+\centering
+\resizebox{\twocolumnwidth}{!}{\includegraphics{defer/RCUphasedstatechange}}
+\caption{Phased State Change for Maintenance Operation}
+\label{fig:defer:Phased State Change for Maintenance Operation}
+\end{figure}
+
In the figure, these apparently conflicting requirements are resolved by
having a prepare phase prior to the maintenance operation and a cleanup
phase after it, during which the common-case operations can proceed
--
2.17.1
