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path: root/fs/nfs/nfs4proc.c
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Diffstat (limited to 'fs/nfs/nfs4proc.c')
-rw-r--r--fs/nfs/nfs4proc.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 006bfa3da55b..59853797825c 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -7195,6 +7195,8 @@ static int nfs4_verify_back_channel_attrs(struct nfs41_create_session_args *args
struct nfs4_channel_attrs *sent = &args->bc_attrs;
struct nfs4_channel_attrs *rcvd = &res->bc_attrs;
+ if (!(res->flags & SESSION4_BACK_CHAN))
+ goto out;
if (rcvd->max_rqst_sz > sent->max_rqst_sz)
return -EINVAL;
if (rcvd->max_resp_sz < sent->max_resp_sz)
@@ -7206,6 +7208,7 @@ static int nfs4_verify_back_channel_attrs(struct nfs41_create_session_args *args
return -EINVAL;
if (rcvd->max_reqs != sent->max_reqs)
return -EINVAL;
+out:
return 0;
}
@@ -7226,7 +7229,9 @@ static void nfs4_update_session(struct nfs4_session *session,
nfs4_copy_sessionid(&session->sess_id, &res->sessionid);
session->flags = res->flags;
memcpy(&session->fc_attrs, &res->fc_attrs, sizeof(session->fc_attrs));
- memcpy(&session->bc_attrs, &res->bc_attrs, sizeof(session->bc_attrs));
+ if (res->flags & SESSION4_BACK_CHAN)
+ memcpy(&session->bc_attrs, &res->bc_attrs,
+ sizeof(session->bc_attrs));
}
static int _nfs4_proc_create_session(struct nfs_client *clp,