From 1dcaa138fc7d87982ccddb7df9e4c30c6cb6eb15 Mon Sep 17 00:00:00 2001 From: Ian Kent Date: Tue, 14 May 2019 15:44:26 -0700 Subject: [PATCH] autofs: add description of ignore pseudo mount option Add a description of the "ignore" pseudo mount option that can be used to provide a generic indicator to applications that the mount entry should be ignored when displaying mount information. Link: http://lkml.kernel.org/r/155287084617.12593.812733161112154904.stgit@pluto.themaw.net Signed-off-by: Ian Kent Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/filesystems/autofs.txt | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/Documentation/filesystems/autofs.txt b/Documentation/filesystems/autofs.txt index 409e6411904d..3af38c7fd26d 100644 --- a/Documentation/filesystems/autofs.txt +++ b/Documentation/filesystems/autofs.txt @@ -526,6 +526,21 @@ directories. Catatonic mode can only be left via the **AUTOFS_DEV_IOCTL_OPENMOUNT_CMD** ioctl on the `/dev/autofs`. +The "ignore" mount option +------------------------- + +The "ignore" mount option can be used to provide a generic indicator +to applications that the mount entry should be ignored when displaying +mount information. + +In other OSes that provide autofs and that provide a mount list to user +space based on the kernel mount list a no-op mount option ("ignore" is +the one use on the most common OSes) is allowed so that autofs file +system users can optionally use it. + +This is intended to be used by user space programs to exclude autofs +mounts from consideration when reading the mounts list. + autofs, name spaces, and shared mounts --------------------------------------