diff --git a/sys/linux/fs_9p.txt b/sys/linux/fs_9p.txt
index 4295be1b3a6b..580531d909f4 100644
--- a/sys/linux/fs_9p.txt
+++ b/sys/linux/fs_9p.txt
@@ -269,6 +269,7 @@ p9_options [
 	cache_loose	stringnoz["cache=loose"]
 	cache_fscache	stringnoz["cache=fscache"]
 	cache_mmap	stringnoz["cache=mmap"]
+	cache_readahead	stringnoz["cache=readahead"]
 	debug		fs_opt_hex["debug", int64]
 	noextend	stringnoz["noextend"]
 	nodevmap	stringnoz["nodevmap"]
@@ -289,4 +290,7 @@ p9_options [
 	access_any	stringnoz["access=any"]
 	access_client	stringnoz["access=client"]
 	access_uid	fs_opt_dec["access", uid]
+	noxattr		stringnoz["noxattr"]
+	directio	stringnoz["directio"]
+	ignoreqv	stringnoz["ignoreqv"]
 ] [varlen]