[bootlin/training-materials updates] master: Block filesystems: details about SD card erase size (3f29e7b3)

[Michael Opdenacker]

Repository : https://github.com/bootlin/training-materials
On branch  : master
Link       : https://github.com/bootlin/training-materials/commit/3f29e7b34d2bd1c31c1958d196e859354764550f

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commit 3f29e7b34d2bd1c31c1958d196e859354764550f
Author: Michael Opdenacker <michael.opdenacker at bootlin.com>
Date:   Mon Jan 31 15:59:22 2022 +0100

    Block filesystems: details about SD card erase size
    
    Signed-off-by: Michael Opdenacker <michael.opdenacker at bootlin.com>


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3f29e7b34d2bd1c31c1958d196e859354764550f
 slides/sysdev-block-filesystems/sysdev-block-filesystems.tex | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/slides/sysdev-block-filesystems/sysdev-block-filesystems.tex b/slides/sysdev-block-filesystems/sysdev-block-filesystems.tex
index 8eb01872..572842af 100644
--- a/slides/sysdev-block-filesystems/sysdev-block-filesystems.tex
+++ b/slides/sysdev-block-filesystems/sysdev-block-filesystems.tex
@@ -387,6 +387,8 @@ major minor #blocks name
   flashbench} tool (\url{http://git.linaro.org/people/arnd/flashbench.git/about/})
   for finding out the erase block and page size for your storage, and
   optimizing your partitions and filesystems for best performance.
+  Note that some SD cards report their erase block size, available in
+  \code{/sys/bus/mmc/devices/<dev>/preferred_erase_size}.
 \end{frame}
 
 \setuplabframe