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NFSv4.2/pnfs: Don't use READ_PLUS with pNFS yet

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We have no way of tracking server READ_PLUS support in pNFS for now, so
just disable it.

Reported-by: "Mkrtchyan, Tigran" <tigran.mkrtchyan@desy.de>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This commit is contained in:
Trond Myklebust 2020-12-10 09:34:34 -05:00
parent 7aedc687c9
commit 5c3485bb12
1 changed files with 8 additions and 7 deletions
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15
fs/nfs/nfs4proc.c
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@ -5320,17 +5320,17 @@ static int nfs4_read_done(struct rpc_task *task, struct nfs_pgio_header *hdr)
}
#ifdef CONFIG_NFS_V4_2
static void nfs42_read_plus_support(struct nfs_server *server, struct rpc_message *msg)
static void nfs42_read_plus_support(struct nfs_pgio_header *hdr,
struct rpc_message *msg)
{
if (server->caps & NFS_CAP_READ_PLUS)
/* Note: We don't use READ_PLUS with pNFS yet */
if (nfs_server_capable(hdr->inode, NFS_CAP_READ_PLUS) && !hdr->ds_clp)
msg->rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_READ_PLUS];
else
msg->rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_READ];
}
#else
static void nfs42_read_plus_support(struct nfs_server *server, struct rpc_message *msg)
static void nfs42_read_plus_support(struct nfs_pgio_header *hdr,
struct rpc_message *msg)
{
msg->rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_READ];
}
#endif /* CONFIG_NFS_V4_2 */
@ -5340,7 +5340,8 @@ static void nfs4_proc_read_setup(struct nfs_pgio_header *hdr,
hdr->timestamp = jiffies;
if (!hdr->pgio_done_cb)
hdr->pgio_done_cb = nfs4_read_done_cb;
nfs42_read_plus_support(NFS_SERVER(hdr->inode), msg);
msg->rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_READ];
nfs42_read_plus_support(hdr, msg);
nfs4_init_sequence(&hdr->args.seq_args, &hdr->res.seq_res, 0, 0);
}