NFS: Create a common pgio_error function

At this point, the read and write versions of this function look
identical so both should use the same function.

Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>

1 files changed, 20 insertions, 0 deletions

diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c
index 0ccd951..b0a98da 100644
--- a/fs/nfs/pagelist.c
+++ b/fs/nfs/pagelist.c
@@ -447,6 +447,26 @@ static void nfs_pgio_prepare(struct rpc_task *task, void *calldata)
 }
 
 /**
+ * nfs_pgio_error - Clean up from a pageio error
+ * @desc: IO descriptor
+ * @hdr: pageio header
+ */
+int nfs_pgio_error(struct nfs_pageio_descriptor *desc,
+			  struct nfs_pgio_header *hdr)
+{
+	struct nfs_pgio_data *data;
+
+	set_bit(NFS_IOHDR_REDO, &hdr->flags);
+	while (!list_empty(&hdr->rpc_list)) {
+		data = list_first_entry(&hdr->rpc_list, struct nfs_pgio_data, list);
+		list_del(&data->list);
+		nfs_pgio_data_release(data);
+	}
+	desc->pg_completion_ops->error_cleanup(&desc->pg_list);
+	return -ENOMEM;
+}
+
+/**
  * nfs_pgio_release - Release pageio data
  * @calldata: The pageio data to release
  */