Btrfs: fix racy system chunk allocation when setting block group ro

[karo-tx-linux.git] / fs / nfs / nfs4session.c

diff --git a/fs/nfs/nfs4session.c b/fs/nfs/nfs4session.c
index e799dc3c3b1db9f7681199907bff5e7bffb3f853..e23366effcfb1e43bcb81983bcbaeacf2e512002 100644 (file)
--- a/fs/nfs/nfs4session.c
+++ b/fs/nfs/nfs4session.c
@@ -450,7 +450,7 @@ int nfs4_setup_session_slot_tables(struct nfs4_session *ses)
        tbl = &ses->fc_slot_table;
        tbl->session = ses;
        status = nfs4_realloc_slot_table(tbl, ses->fc_attrs.max_reqs, 1);
-       if (status) /* -ENOMEM */
+       if (status || !(ses->flags & SESSION4_BACK_CHAN)) /* -ENOMEM */
                return status;
        /* Back channel */
        tbl = &ses->bc_slot_table;