NFSv4.1: add callback to nfs4_write_done

Add callback that pnfs layout driver can use to do its own handling
of data server WRITE response.

Signed-off-by: Fred Isaman <iisaman@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index eb0e87084353..21cd41ddbca6 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -1038,6 +1038,7 @@ struct nfs_write_data {
         unsigned int            npages;         /* Max length of pagevec */
         struct nfs_writeargs    args;           /* argument struct */
         struct nfs_writeres     res;            /* result struct */
+        int (*write_done_cb) (struct rpc_task *task, struct nfs_write_data *data);
 #ifdef CONFIG_NFS_V4
         unsigned long           timestamp;      /* For lease renewal */
 #endif