[PATCH] mountlist: recognize fuse.portal as dummy file system

[Kamil Dudka]

This was originally proposed at:

    https://lists.gnu.org/archive/html/bug-gnulib/2021-02/msg00053.html

As the full review might take some time, would it be possible to apply
at least the part related to fuse.portal file systems?  They started to
cause problems recently:

    https://bugs.launchpad.net/ubuntu/+source/xdg-desktop-portal/+bug/1905623
    https://github.com/muesli/duf/issues/35
    https://bugzilla.redhat.com/1913358
---
 lib/mountlist.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/mountlist.c b/lib/mountlist.c
index f5d1364c1b..e4c1779829 100644
--- a/lib/mountlist.c
+++ b/lib/mountlist.c
@@ -169,6 +169,7 @@
    || strcmp (Fs_type, "debugfs") == 0          \
    || strcmp (Fs_type, "devpts") == 0           \
    || strcmp (Fs_type, "fusectl") == 0          \
+   || strcmp (Fs_type, "fuse.portal") == 0      \
    || strcmp (Fs_type, "mqueue") == 0           \
    || strcmp (Fs_type, "rpc_pipefs") == 0       \
    || strcmp (Fs_type, "sysfs") == 0            \
-- 
2.31.1