diff -up nfs-utils-2.5.4/utils/mount/nfs.man.orig nfs-utils-2.5.4/utils/mount/nfs.man
--- nfs-utils-2.5.4/utils/mount/nfs.man.orig	2025-04-14 11:05:21.218916553 -0400
+++ nfs-utils-2.5.4/utils/mount/nfs.man	2025-04-14 11:06:50.822741625 -0400
@@ -430,11 +430,16 @@ created network transport, the client wi
 list of available transports for that RPC client.
 .TP 1.5i
 .BR rdirplus " / " nordirplus
-Selects whether to use NFS v3 or v4 READDIRPLUS requests.
-If this option is not specified, the NFS client uses READDIRPLUS requests
-on NFS v3 or v4 mounts to read small directories.
-Some applications perform better if the client uses only READDIR requests
-for all directories.
+Selects whether to use NFS v3 or v4 READDIRPLUS requests.  If this option is
+not specified, the NFS client uses a heuristic to optimize performance by
+choosing READDIR vs READDIRPLUS based on how often the calling process uses
+the additional attributes returned from READDIRPLUS.  Some applications
+perform better if the client uses only READDIR requests for all directories.
+.TP 1.5i
+.BR rdirplus={none|force}
+If set to "force", the NFS client always attempts to use READDIRPLUS
+requests.  If set to "none", the behavior is the same as
+.B nordirplus.
 .TP 1.5i
 .BI retry= n
 The number of minutes that the