From: Andy Adamson <andros@xxxxxxxxxx>
If the rsize or wsize is not set on the mount command, negotiate the highest
supported rsize and wsize in session creation.
Fixes a bug where the client negotiated nfs41_maxwrite_overhead as
ca_maxrequestsize and nfs41_maxread_overhead as ca_maxresponsesize resulting
in NFS4ERR_REQ_TOO_BIG errors on writes.
Signed-off-by: Andy Adamson <andros@xxxxxxxxxx>
---
fs/nfs/nfs4proc.c | 12 ++++++++++--
1 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index d44f107..78155de 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -4844,14 +4844,22 @@ int nfs4_init_session(struct nfs_server *server)
{
struct nfs_client *clp = server->nfs_client;
struct nfs4_session *session;
+ unsigned int rsize, wsize;
int ret;
if (!nfs4_has_session(clp))
return 0;
+ rsize = server->rsize;
+ if (rsize == 0)
+ rsize = NFS_MAX_FILE_IO_SIZE;
+ wsize = server->wsize;
+ if (wsize == 0)
+ wsize = NFS_MAX_FILE_IO_SIZE;
+
session = clp->cl_session;
- session->fc_attrs.max_rqst_sz = server->wsize + nfs41_maxwrite_overhead;
- session->fc_attrs.max_resp_sz = server->rsize + nfs41_maxread_overhead;
+ session->fc_attrs.max_rqst_sz = wsize + nfs41_maxwrite_overhead;
+ session->fc_attrs.max_resp_sz = rsize + nfs41_maxread_overhead;
ret = nfs4_recover_expired_lease(server);
if (!ret)
--
1.6.0.6
--
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