nfsrv_rename() should behave like dorenameat() and tell UVM to "flush" a
possibly mmap'ed file before calling VOP_RENAME().
ok?
Index: nfs/nfs_serv.c
===================================================================
RCS file: /cvs/src/sys/nfs/nfs_serv.c,v
retrieving revision 1.120
diff -u -p -r1.120 nfs_serv.c
--- nfs/nfs_serv.c 11 Mar 2021 13:31:35 -0000 1.120
+++ nfs/nfs_serv.c 4 May 2022 15:29:06 -0000
@@ -1488,6 +1488,9 @@ nfsrv_rename(struct nfsrv_descript *nfsd
error = -1;
out:
if (!error) {
+ if (tvp) {
+ (void)uvm_vnp_uncache(tvp);
+ }
error = VOP_RENAME(fromnd.ni_dvp, fromnd.ni_vp, &fromnd.ni_cnd,
tond.ni_dvp, tond.ni_vp, &tond.ni_cnd);
} else {
