NFSv4.1 set RPC_TASK_SOFTCONN for filelayout DS RPC calls

RPC_TASK_SOFTCONN returns connection errors to the caller which allows the pNFS
file layout to quickly try the MDS or perhaps another DS.

Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 7 insertions, 6 deletions

diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 8ffd7d5ed58b..e6fe3d69d14c 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -916,7 +916,7 @@ static int flush_task_priority(int how)
 int nfs_initiate_write(struct rpc_clnt *clnt,
                        struct nfs_write_data *data,
                        const struct rpc_call_ops *call_ops,
-                       int how)
+                       int how, int flags)
 {
         struct inode *inode = data->header->inode;
         int priority = flush_task_priority(how);
@@ -933,7 +933,7 @@ int nfs_initiate_write(struct rpc_clnt *clnt,
                 .callback_ops = call_ops,
                 .callback_data = data,
                 .workqueue = nfsiod_workqueue,
-                .flags = RPC_TASK_ASYNC,
+                .flags = RPC_TASK_ASYNC | flags,
                 .priority = priority,
         };
         int ret = 0;
@@ -1009,7 +1009,7 @@ static int nfs_do_write(struct nfs_write_data *data,
 {
         struct inode *inode = data->header->inode;
 
-        return nfs_initiate_write(NFS_CLIENT(inode), data, call_ops, how);
+        return nfs_initiate_write(NFS_CLIENT(inode), data, call_ops, how, 0);
 }
 
 static int nfs_do_multiple_writes(struct list_head *head,
@@ -1394,7 +1394,7 @@ EXPORT_SYMBOL_GPL(nfs_commitdata_release);
 
 int nfs_initiate_commit(struct rpc_clnt *clnt, struct nfs_commit_data *data,
                         const struct rpc_call_ops *call_ops,
-                        int how)
+                        int how, int flags)
 {
         struct rpc_task *task;
         int priority = flush_task_priority(how);
@@ -1410,7 +1410,7 @@ int nfs_initiate_commit(struct rpc_clnt *clnt, struct nfs_commit_data *data,
                 .callback_ops = call_ops,
                 .callback_data = data,
                 .workqueue = nfsiod_workqueue,
-                .flags = RPC_TASK_ASYNC,
+                .flags = RPC_TASK_ASYNC | flags,
                 .priority = priority,
         };
         /* Set up the initial task struct.  */
@@ -1499,7 +1499,8 @@ nfs_commit_list(struct inode *inode, struct list_head *head, int how,
         /* Set up the argument struct */
         nfs_init_commit(data, head, NULL, cinfo);
         atomic_inc(&cinfo->mds->rpcs_out);
-        return nfs_initiate_commit(NFS_CLIENT(inode), data, data->mds_ops, how);
+        return nfs_initiate_commit(NFS_CLIENT(inode), data, data->mds_ops,
+                                   how, 0);
  out_bad:
         nfs_retry_commit(head, NULL, cinfo);
         cinfo->completion_ops->error_cleanup(NFS_I(inode));