diff --git a/fs/nfs/Kconfig b/fs/nfs/Kconfig index 88e1763e02f3..e2a488d403a6 100644 --- a/fs/nfs/Kconfig +++ b/fs/nfs/Kconfig @@ -205,3 +205,12 @@ config NFS_DISABLE_UDP_SUPPORT Choose Y here to disable the use of NFS over UDP. NFS over UDP on modern networks (1Gb+) can lead to data corruption caused by fragmentation during high loads. + +config NFS_V4_2_READ_PLUS + bool "NFS: Enable support for the NFSv4.2 READ_PLUS operation" + depends on NFS_V4_2 + default n + help + This is intended for developers only. The READ_PLUS operation has + been shown to have issues under specific conditions and should not + be used in production. diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 9e0ca9b2b210..e89468678ae1 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -5309,7 +5309,7 @@ static int nfs4_read_done(struct rpc_task *task, struct nfs_pgio_header *hdr) nfs4_read_done_cb(task, hdr); } -#ifdef CONFIG_NFS_V4_2 +#if defined CONFIG_NFS_V4_2 && defined CONFIG_NFS_V4_2_READ_PLUS static void nfs42_read_plus_support(struct nfs_server *server, struct rpc_message *msg) { if (server->caps & NFS_CAP_READ_PLUS)