diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c index eedc2e6bc45a..38c7468906a1 100644 --- a/fs/nfsd/nfsctl.c +++ b/fs/nfsd/nfsctl.c @@ -1576,11 +1576,14 @@ int nfsd_nl_rpc_status_get_dumpit(struct sk_buff *skb, #endif /* CONFIG_NFSD_V4 */ /* - * Acquire rq_status_counter before reporting the rqst - * fields to the user. + * Read-side load-load fence: order the field reads + * above before the counter re-read below, mirroring + * the smp_rmb() in the standard seqcount retry. The + * begin-side smp_load_acquire() above pairs with the + * smp_store_release() in nfsd_dispatch(). */ - if (smp_load_acquire(&rqstp->rq_status_counter) != - status_counter) + smp_rmb(); + if (READ_ONCE(rqstp->rq_status_counter) != status_counter) continue; ret = nfsd_genl_rpc_status_compose_msg(skb, cb,