Add option --exclude-kernfs to skip scanning Linux pseudo filesystems

(cherry picked from commit a076ac714aa6fb24e0e9eb227372df84a4b6000b)

1 files changed, 13 insertions, 0 deletions

diff --git a/doc/ncdu.pod b/doc/ncdu.pod
index 784500f..ad6783b 100644
--- a/doc/ncdu.pod
+++ b/doc/ncdu.pod
@@ -179,6 +179,15 @@ this option will not follow symlinks to directories and will count each
 symlinked file as a unique file (i.e. unlike how hard links are handled). This
 is subject to change in later versions.
 
+=item --exclude-kernfs
+
+Exclude Linux pseudo filesystems, e.g. /proc (procfs), /sys (sysfs).
+This option is only available on Linux, but exported statistics can be loaded on
+all platforms.
+
+The complete list of currently known pseudo filesystems is: binfmt, bpf, cgroup,
+cgroup2, debug, devpts, proc, pstore, security, selinux, sys, trace.
+
 =back
 
 
@@ -307,6 +316,10 @@ File or directory is excluded from the statistics by using exlude patterns.
 
 Directory is on another filesystem.
 
+=item ^
+
+Directory is excluded from the statistics due to being a Linux pseudo filesystem.
+
 =item @
 
 This is neither a file nor a folder (symlink, socket, ...).