diff -up net-snmp-5.7.2/agent/mibgroup/hardware/fsys/fsys_mntent.c.orig net-snmp-5.7.2/agent/mibgroup/hardware/fsys/fsys_mntent.c

--- net-snmp-5.7.2/agent/mibgroup/hardware/fsys/fsys_mntent.c.orig	2018-04-05 18:29:29.042682282 +0200

+++ net-snmp-5.7.2/agent/mibgroup/hardware/fsys/fsys_mntent.c	2018-04-05 19:03:16.270523986 +0200

@@ -142,6 +142,7 @@ _fsys_type( char *typename )

               !strcmp(typename, MNTTYPE_SIMFS) ||

               !strcmp(typename, MNTTYPE_VZFS) ||

               !strcmp(typename, MNTTYPE_BTRFS) ||

+              !strcmp(typename, MNTTYPE_ACFS) ||

               !strcmp(typename, MNTTYPE_LOFS))

        return NETSNMP_FS_TYPE_OTHER;

diff -up net-snmp-5.7.2/agent/mibgroup/hardware/fsys/mnttypes.h.orig net-snmp-5.7.2/agent/mibgroup/hardware/fsys/mnttypes.h

--- net-snmp-5.7.2/agent/mibgroup/hardware/fsys/mnttypes.h.orig	2018-04-05 18:28:36.694091896 +0200

+++ net-snmp-5.7.2/agent/mibgroup/hardware/fsys/mnttypes.h	2018-04-05 20:14:55.695813461 +0200

@@ -151,6 +151,9 @@

 #ifndef MNTTYPE_BTRFS

 #define MNTTYPE_BTRFS    "btrfs"

 #endif

+#ifndef MNTTYPE_ACFS

+#define MNTTYPE_ACFS  "acfs"

+#endif

 /*

  *  File systems to skip