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authorTrond Myklebust <Trond.Myklebust@netapp.com>2012-11-20 11:02:55 -0500
committerTrond Myklebust <Trond.Myklebust@netapp.com>2012-11-21 09:29:51 -0500
commitae72ae676045274c82f3c25159a9dd7cfcf5ffae (patch)
tree09013f55649287d90b48f63cdbdbef44b17ae521
parent5df904aeb0d9baad90e78fc730dfe1afa4996005 (diff)
NFSv4.1: Don't confuse CREATE_SESSION arguments and results
Don't store the target request and response sizes in the same variables used to store the server's replies to those targets. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
-rw-r--r--fs/nfs/nfs4proc.c30
-rw-r--r--include/linux/nfs_fs_sb.h3
2 files changed, 20 insertions, 13 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index a32d953b08de..3e572dc316e4 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -5807,8 +5807,8 @@ void nfs4_destroy_session(struct nfs4_session *session)
static void nfs4_init_channel_attrs(struct nfs41_create_session_args *args)
{
struct nfs4_session *session = args->client->cl_session;
- unsigned int mxrqst_sz = session->fc_attrs.max_rqst_sz,
- mxresp_sz = session->fc_attrs.max_resp_sz;
+ unsigned int mxrqst_sz = session->fc_target_max_rqst_sz,
+ mxresp_sz = session->fc_target_max_resp_sz;
if (mxrqst_sz == 0)
mxrqst_sz = NFS_MAX_FILE_IO_SIZE;
@@ -6015,24 +6015,28 @@ int nfs4_init_session(struct nfs_server *server)
{
struct nfs_client *clp = server->nfs_client;
struct nfs4_session *session;
- unsigned int rsize, wsize;
+ unsigned int target_max_rqst_sz = NFS_MAX_FILE_IO_SIZE;
+ unsigned int target_max_resp_sz = NFS_MAX_FILE_IO_SIZE;
if (!nfs4_has_session(clp))
return 0;
+ if (server->rsize != 0)
+ target_max_resp_sz = server->rsize;
+ target_max_resp_sz += nfs41_maxread_overhead;
+
+ if (server->wsize != 0)
+ target_max_rqst_sz = server->wsize;
+ target_max_rqst_sz += nfs41_maxwrite_overhead;
+
session = clp->cl_session;
spin_lock(&clp->cl_lock);
if (test_and_clear_bit(NFS4_SESSION_INITING, &session->session_state)) {
-
- 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->fc_attrs.max_rqst_sz = wsize + nfs41_maxwrite_overhead;
- session->fc_attrs.max_resp_sz = rsize + nfs41_maxread_overhead;
+ /* Initialise targets and channel attributes */
+ session->fc_target_max_rqst_sz = target_max_rqst_sz;
+ session->fc_attrs.max_rqst_sz = target_max_rqst_sz;
+ session->fc_target_max_resp_sz = target_max_resp_sz;
+ session->fc_attrs.max_resp_sz = target_max_resp_sz;
}
spin_unlock(&clp->cl_lock);
diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
index a9e76ee1adca..97c8f9191880 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -242,6 +242,9 @@ struct nfs4_session {
struct nfs4_channel_attrs bc_attrs;
struct nfs4_slot_table bc_slot_table;
struct nfs_client *clp;
+ /* Create session arguments */
+ unsigned int fc_target_max_rqst_sz;
+ unsigned int fc_target_max_resp_sz;
};
#endif /* CONFIG_NFS_V4 */