[PATCH] Documentation/filesystems: sharedsubtree: add section headings

From: Randy Dunlap
Date: Mon May 08 2023 - 01:59:58 EST

Several of the sections are missing underlines. This makes the
generated contents have missing entries, so add the underlines.

Fixes: 16c01b20ae05 ("doc/filesystems: more mount cleanups")
Fixes: 9cfcceea8f7e ("[PATCH] Complete description of shared subtrees.")
Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Cc: Jonathan Corbet <corbet@xxxxxxx>
Cc: linux-doc@xxxxxxxxxxxxxxx
Cc: Alexander Viro <viro@xxxxxxxxxxxxxxxxxx>
Cc: Christian Brauner <brauner@xxxxxxxxxx>
Cc: linux-fsdevel@xxxxxxxxxxxxxxx
Cc: Ram Pai <linuxram@xxxxxxxxxx>
Cc: Peng Tao <bergwolf@xxxxxxxxx>
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Documentation/filesystems/sharedsubtree.rst | 4 ++++
1 file changed, 4 insertions(+)

diff -- a/Documentation/filesystems/sharedsubtree.rst b/Documentation/filesystems/sharedsubtree.rst
--- a/Documentation/filesystems/sharedsubtree.rst
+++ b/Documentation/filesystems/sharedsubtree.rst
@@ -147,6 +147,7 @@ replicas continue to be exactly same.

3) Setting mount states

The mount command (util-linux package) can be used to set mount
@@ -612,6 +613,7 @@ replicas continue to be exactly same.

6) Quiz

A. What is the result of the following command sequence?

@@ -673,6 +675,7 @@ replicas continue to be exactly same.
/mnt/1/test be?

7) FAQ

Q1. Why is bind mount needed? How is it different from symbolic links?
symbolic links can get stale if the destination mount gets
@@ -841,6 +844,7 @@ replicas continue to be exactly same.
tmp usr tmp usr tmp usr

8) Implementation

8A) Datastructure