[bootlin/training-materials updates] master: Minor flash slides updates (986d840f)

[Michael Opdenacker]

Repository : https://github.com/bootlin/training-materials
On branch  : master
Link       : https://github.com/bootlin/training-materials/commit/986d840fbfc00a5823ba62afbac0f2c6ee66a114

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commit 986d840fbfc00a5823ba62afbac0f2c6ee66a114
Author: Michael Opdenacker <michael.opdenacker at bootlin.com>
Date:   Wed Jul 8 19:59:07 2020 +0200

    Minor flash slides updates
    
    Signed-off-by: Michael Opdenacker <michael.opdenacker at bootlin.com>


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986d840fbfc00a5823ba62afbac0f2c6ee66a114
 slides/sysdev-flash-filesystems/sysdev-flash-filesystems.tex | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/slides/sysdev-flash-filesystems/sysdev-flash-filesystems.tex b/slides/sysdev-flash-filesystems/sysdev-flash-filesystems.tex
index 3f49c41b..2d08165f 100644
--- a/slides/sysdev-flash-filesystems/sysdev-flash-filesystems.tex
+++ b/slides/sysdev-flash-filesystems/sysdev-flash-filesystems.tex
@@ -353,8 +353,7 @@ setenv mtdparts mtdparts=omap2-nand.0:512k(XLoader)ro,1536k(UBoot)ro,512k(Env),4
   \begin{itemize}
   \item Do not use your flash storage as swap area (rare in embedded
     systems anyway)
-  \item Mount your filesystems as read-only, or use read-only
-    filesystems (SquashFS), whenever possible.
+  \item Mount your filesystems as read-only whenever possible.
   \item Keep volatile files in RAM (tmpfs)
   \item Don't use the \code{sync} mount option (commits writes
     immediately). Use the \code{fsync()} system call for per-file
@@ -373,7 +372,7 @@ setenv mtdparts mtdparts=omap2-nand.0:512k(XLoader)ro,1536k(UBoot)ro,512k(Env),4
   \item There are several legacy flash filesystems which might be
     useful for specific usage: JFFS2, YAFFS2.
   \item Nowadays, UBI/UBIFS is the de facto standard for medium to
-    large capacity NANDs (above 128MB)
+    large capacity NANDs
   \end{itemize}
 \end{frame}
 
@@ -429,7 +428,8 @@ setenv mtdparts mtdparts=omap2-nand.0:512k(XLoader)ro,1536k(UBoot)ro,512k(Env),4
       \item Focus on scalability, performance and reliability
       \end{itemize}
     \item Drawback: introduces noticeable space overhead,
-      especially when used on small devices or partitions.
+      especially when used on small devices or partitions. JFFS2
+      still makes sense on small MTD partitions.
     \end{itemize}
     \column{0.3\textwidth}
     \includegraphics[height=0.8\textheight]{slides/sysdev-flash-filesystems/ubifs.pdf}