NFSv4.1/NFSv3: Add pNFS callbacks for nfs3_(read|write|commit)_done()

Enable pNFS callbacks to allow flex files to work correctly with a
NFSv3-enabled data server.

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

1 files changed, 9 insertions, 0 deletions

diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c
index 524f9f837408..78e557c3ab87 100644
--- a/fs/nfs/nfs3proc.c
+++ b/fs/nfs/nfs3proc.c
@@ -800,6 +800,9 @@ static int nfs3_read_done(struct rpc_task *task, struct nfs_pgio_header *hdr)
 {
         struct inode *inode = hdr->inode;
 
+        if (hdr->pgio_done_cb != NULL)
+                return hdr->pgio_done_cb(task, hdr);
+
         if (nfs3_async_handle_jukebox(task, inode))
                 return -EAGAIN;
 
@@ -825,6 +828,9 @@ static int nfs3_write_done(struct rpc_task *task, struct nfs_pgio_header *hdr)
 {
         struct inode *inode = hdr->inode;
 
+        if (hdr->pgio_done_cb != NULL)
+                return hdr->pgio_done_cb(task, hdr);
+
         if (nfs3_async_handle_jukebox(task, inode))
                 return -EAGAIN;
         if (task->tk_status >= 0)
@@ -845,6 +851,9 @@ static void nfs3_proc_commit_rpc_prepare(struct rpc_task *task, struct nfs_commi
 
 static int nfs3_commit_done(struct rpc_task *task, struct nfs_commit_data *data)
 {
+        if (data->commit_done_cb != NULL)
+                return data->commit_done_cb(task, data);
+
         if (nfs3_async_handle_jukebox(task, data->inode))
                 return -EAGAIN;
         nfs_refresh_inode(data->inode, data->res.fattr);