From d617327acbf83e11a454b703f30971620fc4c173 Mon Sep 17 00:00:00 2001 From: David Sterba Date: Wed, 22 Apr 2020 15:36:44 +0200 Subject: [PATCH] btrfs-progs: docs: clarify mount options Issue: 246 Signed-off-by: David Sterba --- Documentation/btrfs-man5.asciidoc | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/Documentation/btrfs-man5.asciidoc b/Documentation/btrfs-man5.asciidoc index 88f1c5ed..3c830f70 100644 --- a/Documentation/btrfs-man5.asciidoc +++ b/Documentation/btrfs-man5.asciidoc @@ -33,6 +33,11 @@ per-subvolume 'nodatacow', 'nodatasum', or 'compress' using mount options. This should eventually be fixed, but it has proved to be difficult to implement correctly within the Linux VFS framework. +Mount options are processed in order, only the last occurence of an option +takes effect and may disable other options due to constraints (see eg. +'nodatacow' and 'compress'). The output of 'mount' command shows which options +have been applied. + *acl*:: *noacl*:: (default: on)