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Diffstat (limited to 'fs/nfs/nfs4proc.c')
-rw-r--r--fs/nfs/nfs4proc.c123
1 files changed, 108 insertions, 15 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 0a07e353a96..1d84e7088af 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -85,6 +85,9 @@ static int nfs4_map_errors(int err)
switch (err) {
case -NFS4ERR_RESOURCE:
return -EREMOTEIO;
+ case -NFS4ERR_BADOWNER:
+ case -NFS4ERR_BADNAME:
+ return -EINVAL;
default:
dprintk("%s could not handle NFSv4 error %d\n",
__func__, -err);
@@ -241,7 +244,7 @@ static int nfs4_delay(struct rpc_clnt *clnt, long *timeout)
/* This is the error handling routine for processes that are allowed
* to sleep.
*/
-static int nfs4_handle_exception(const struct nfs_server *server, int errorcode, struct nfs4_exception *exception)
+static int nfs4_handle_exception(struct nfs_server *server, int errorcode, struct nfs4_exception *exception)
{
struct nfs_client *clp = server->nfs_client;
struct nfs4_state *state = exception->state;
@@ -293,6 +296,19 @@ static int nfs4_handle_exception(const struct nfs_server *server, int errorcode,
break;
case -NFS4ERR_OLD_STATEID:
exception->retry = 1;
+ break;
+ case -NFS4ERR_BADOWNER:
+ /* The following works around a Linux server bug! */
+ case -NFS4ERR_BADNAME:
+ if (server->caps & NFS_CAP_UIDGID_NOMAP) {
+ server->caps &= ~NFS_CAP_UIDGID_NOMAP;
+ exception->retry = 1;
+ printk(KERN_WARNING "NFS: v4 server %s "
+ "does not accept raw "
+ "uid/gids. "
+ "Reenabling the idmapper.\n",
+ server->nfs_client->cl_hostname);
+ }
}
/* We failed to handle the error */
return nfs4_map_errors(ret);
@@ -505,7 +521,7 @@ out:
return ret_id;
}
-static int nfs41_setup_sequence(struct nfs4_session *session,
+int nfs41_setup_sequence(struct nfs4_session *session,
struct nfs4_sequence_args *args,
struct nfs4_sequence_res *res,
int cache_reply,
@@ -571,6 +587,7 @@ static int nfs41_setup_sequence(struct nfs4_session *session,
res->sr_status = 1;
return 0;
}
+EXPORT_SYMBOL_GPL(nfs41_setup_sequence);
int nfs4_setup_sequence(const struct nfs_server *server,
struct nfs4_sequence_args *args,
@@ -1573,9 +1590,8 @@ static int _nfs4_proc_open(struct nfs4_opendata *data)
return 0;
}
-static int nfs4_recover_expired_lease(struct nfs_server *server)
+static int nfs4_client_recover_expired_lease(struct nfs_client *clp)
{
- struct nfs_client *clp = server->nfs_client;
unsigned int loop;
int ret;
@@ -1592,6 +1608,11 @@ static int nfs4_recover_expired_lease(struct nfs_server *server)
return ret;
}
+static int nfs4_recover_expired_lease(struct nfs_server *server)
+{
+ return nfs4_client_recover_expired_lease(server->nfs_client);
+}
+
/*
* OPEN_EXPIRED:
* reclaim state on the server after a network partition.
@@ -3069,15 +3090,10 @@ static int nfs4_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle,
return err;
}
-static int nfs4_read_done(struct rpc_task *task, struct nfs_read_data *data)
+static int nfs4_read_done_cb(struct rpc_task *task, struct nfs_read_data *data)
{
struct nfs_server *server = NFS_SERVER(data->inode);
- dprintk("--> %s\n", __func__);
-
- if (!nfs4_sequence_done(task, &data->res.seq_res))
- return -EAGAIN;
-
if (nfs4_async_handle_error(task, server, data->args.context->state) == -EAGAIN) {
nfs_restart_rpc(task, server->nfs_client);
return -EAGAIN;
@@ -3089,19 +3105,44 @@ static int nfs4_read_done(struct rpc_task *task, struct nfs_read_data *data)
return 0;
}
+static int nfs4_read_done(struct rpc_task *task, struct nfs_read_data *data)
+{
+
+ dprintk("--> %s\n", __func__);
+
+ if (!nfs4_sequence_done(task, &data->res.seq_res))
+ return -EAGAIN;
+
+ return data->read_done_cb(task, data);
+}
+
static void nfs4_proc_read_setup(struct nfs_read_data *data, struct rpc_message *msg)
{
data->timestamp = jiffies;
+ data->read_done_cb = nfs4_read_done_cb;
msg->rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_READ];
}
-static int nfs4_write_done(struct rpc_task *task, struct nfs_write_data *data)
+/* Reset the the nfs_read_data to send the read to the MDS. */
+void nfs4_reset_read(struct rpc_task *task, struct nfs_read_data *data)
+{
+ dprintk("%s Reset task for i/o through\n", __func__);
+ put_lseg(data->lseg);
+ data->lseg = NULL;
+ /* offsets will differ in the dense stripe case */
+ data->args.offset = data->mds_offset;
+ data->ds_clp = NULL;
+ data->args.fh = NFS_FH(data->inode);
+ data->read_done_cb = nfs4_read_done_cb;
+ task->tk_ops = data->mds_ops;
+ rpc_task_reset_client(task, NFS_CLIENT(data->inode));
+}
+EXPORT_SYMBOL_GPL(nfs4_reset_read);
+
+static int nfs4_write_done_cb(struct rpc_task *task, struct nfs_write_data *data)
{
struct inode *inode = data->inode;
- if (!nfs4_sequence_done(task, &data->res.seq_res))
- return -EAGAIN;
-
if (nfs4_async_handle_error(task, NFS_SERVER(inode), data->args.context->state) == -EAGAIN) {
nfs_restart_rpc(task, NFS_SERVER(inode)->nfs_client);
return -EAGAIN;
@@ -3113,11 +3154,41 @@ static int nfs4_write_done(struct rpc_task *task, struct nfs_write_data *data)
return 0;
}
+static int nfs4_write_done(struct rpc_task *task, struct nfs_write_data *data)
+{
+ if (!nfs4_sequence_done(task, &data->res.seq_res))
+ return -EAGAIN;
+ return data->write_done_cb(task, data);
+}
+
+/* Reset the the nfs_write_data to send the write to the MDS. */
+void nfs4_reset_write(struct rpc_task *task, struct nfs_write_data *data)
+{
+ dprintk("%s Reset task for i/o through\n", __func__);
+ put_lseg(data->lseg);
+ data->lseg = NULL;
+ data->ds_clp = NULL;
+ data->write_done_cb = nfs4_write_done_cb;
+ data->args.fh = NFS_FH(data->inode);
+ data->args.bitmask = data->res.server->cache_consistency_bitmask;
+ data->args.offset = data->mds_offset;
+ data->res.fattr = &data->fattr;
+ task->tk_ops = data->mds_ops;
+ rpc_task_reset_client(task, NFS_CLIENT(data->inode));
+}
+EXPORT_SYMBOL_GPL(nfs4_reset_write);
+
static void nfs4_proc_write_setup(struct nfs_write_data *data, struct rpc_message *msg)
{
struct nfs_server *server = NFS_SERVER(data->inode);
- data->args.bitmask = server->cache_consistency_bitmask;
+ if (data->lseg) {
+ data->args.bitmask = NULL;
+ data->res.fattr = NULL;
+ } else
+ data->args.bitmask = server->cache_consistency_bitmask;
+ if (!data->write_done_cb)
+ data->write_done_cb = nfs4_write_done_cb;
data->res.server = server;
data->timestamp = jiffies;
@@ -5118,6 +5189,27 @@ int nfs4_init_session(struct nfs_server *server)
return ret;
}
+int nfs4_init_ds_session(struct nfs_client *clp)
+{
+ struct nfs4_session *session = clp->cl_session;
+ int ret;
+
+ if (!test_and_clear_bit(NFS4_SESSION_INITING, &session->session_state))
+ return 0;
+
+ ret = nfs4_client_recover_expired_lease(clp);
+ if (!ret)
+ /* Test for the DS role */
+ if (!is_ds_client(clp))
+ ret = -ENODEV;
+ if (!ret)
+ ret = nfs4_check_client_ready(clp);
+ return ret;
+
+}
+EXPORT_SYMBOL_GPL(nfs4_init_ds_session);
+
+
/*
* Renew the cl_session lease.
*/
@@ -5648,6 +5740,7 @@ const struct nfs_rpc_ops nfs_v4_clientops = {
.clear_acl_cache = nfs4_zap_acl_attr,
.close_context = nfs4_close_context,
.open_context = nfs4_atomic_open,
+ .init_client = nfs4_init_client,
};
static const struct xattr_handler nfs4_xattr_nfs4_acl_handler = {
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-27 15:19:39 +0000