[PATCH v5 5/5] docs: proc: add documentation about relaxing visibility restrictions

[Alexey Gladkov]

Signed-off-by: Alexey Gladkov <gladkov.alexey@xxxxxxxxx>
---
 Documentation/filesystems/proc.rst | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/filesystems/proc.rst b/Documentation/filesystems/proc.rst
index 3daf0e7d1071..9d2985a7aad6 100644
--- a/Documentation/filesystems/proc.rst
+++ b/Documentation/filesystems/proc.rst
@@ -2190,6 +2190,8 @@ available to you and will not allow procfs to be mounted if:
   2. Mount is prohibited if a new mount overrides the readonly option or family
      of atime options.
   3. If any file or non-empty procfs directory is hidden by another filesystem.
+     You can still mount procfs even with overlapped directories if the
+     subset=pid option is used.
 
 Chapter 5: Filesystem behavior
 ==============================
-- 
2.29.2