+static int
+flush_nfsd_cache(char *path, time_t now)
+{
+ int fd;
+ char stime[20];
+
+ sprintf(stime, "%ld\n", now);
+ fd = open(path, O_RDWR);
+ if (fd == -1)
+ return -1;
+ write(fd, stime, strlen(stime));
+ close(fd);
+ return 0;
+}
+
+static int
+flush_nfsd_idmap_cache(void)
+{
+ time_t now = time(NULL);
+ int ret;
+
+ ret = flush_nfsd_cache("/proc/net/rpc/nfs4.idtoname/flush", now);
+ if (ret)
+ return ret;
+ ret = flush_nfsd_cache("/proc/net/rpc/nfs4.nametoid/flush", now);
+ return ret;
+}
+