[Devel] [PATCH v2 4/6] SUNPRC: cleanup RPC PipeFS pipes upcall interface

[Stanislav Kinsbursky]

RPC pipe upcall doesn't requires only private pipe data. Thus RPC inode
references in this code can be removed.

Signed-off-by: Stanislav Kinsbursky <skinsbursky at parallels.com>

---
 fs/nfs/blocklayout/blocklayoutdev.c |    2 +-
 fs/nfs/blocklayout/blocklayoutdm.c  |    2 +-
 fs/nfs/idmap.c                      |    4 ++--
 include/linux/sunrpc/rpc_pipe_fs.h  |    2 +-
 net/sunrpc/auth_gss/auth_gss.c      |    3 +--
 net/sunrpc/rpc_pipe.c               |    3 +--
 6 files changed, 7 insertions(+), 9 deletions(-)

diff --git a/fs/nfs/blocklayout/blocklayoutdev.c b/fs/nfs/blocklayout/blocklayoutdev.c
index d08ba91..8101919 100644
--- a/fs/nfs/blocklayout/blocklayoutdev.c
+++ b/fs/nfs/blocklayout/blocklayoutdev.c
@@ -146,7 +146,7 @@ nfs4_blk_decode_device(struct nfs_server *server,
 
 	dprintk("%s CALLING USERSPACE DAEMON\n", __func__);
 	add_wait_queue(&bl_wq, &wq);
-	rc = rpc_queue_upcall(bl_device_pipe->d_inode, &msg);
+	rc = rpc_queue_upcall(RPC_I(bl_device_pipe->d_inode)->pipe, &msg);
 	if (rc < 0) {
 		remove_wait_queue(&bl_wq, &wq);
 		rv = ERR_PTR(rc);
diff --git a/fs/nfs/blocklayout/blocklayoutdm.c b/fs/nfs/blocklayout/blocklayoutdm.c
index d055c75..3c38244 100644
--- a/fs/nfs/blocklayout/blocklayoutdm.c
+++ b/fs/nfs/blocklayout/blocklayoutdm.c
@@ -66,7 +66,7 @@ static void dev_remove(dev_t dev)
 	msg.len = sizeof(bl_msg) + bl_msg.totallen;
 
 	add_wait_queue(&bl_wq, &wq);
-	if (rpc_queue_upcall(bl_device_pipe->d_inode, &msg) < 0) {
+	if (rpc_queue_upcall(RPC_I(bl_device_pipe->d_inode)->pipe, &msg) < 0) {
 		remove_wait_queue(&bl_wq, &wq);
 		goto out;
 	}
diff --git a/fs/nfs/idmap.c b/fs/nfs/idmap.c
index 47d1c6f..4194129 100644
--- a/fs/nfs/idmap.c
+++ b/fs/nfs/idmap.c
@@ -506,7 +506,7 @@ nfs_idmap_id(struct idmap *idmap, struct idmap_hashtable *h,
 	msg.len = sizeof(*im);
 
 	add_wait_queue(&idmap->idmap_wq, &wq);
-	if (rpc_queue_upcall(idmap->idmap_dentry->d_inode, &msg) < 0) {
+	if (rpc_queue_upcall(RPC_I(idmap->idmap_dentry->d_inode)->pipe, &msg) < 0) {
 		remove_wait_queue(&idmap->idmap_wq, &wq);
 		goto out;
 	}
@@ -567,7 +567,7 @@ nfs_idmap_name(struct idmap *idmap, struct idmap_hashtable *h,
 
 	add_wait_queue(&idmap->idmap_wq, &wq);
 
-	if (rpc_queue_upcall(idmap->idmap_dentry->d_inode, &msg) < 0) {
+	if (rpc_queue_upcall(RPC_I(idmap->idmap_dentry->d_inode)->pipe, &msg) < 0) {
 		remove_wait_queue(&idmap->idmap_wq, &wq);
 		goto out;
 	}
diff --git a/include/linux/sunrpc/rpc_pipe_fs.h b/include/linux/sunrpc/rpc_pipe_fs.h
index c2fa330..ad78bea 100644
--- a/include/linux/sunrpc/rpc_pipe_fs.h
+++ b/include/linux/sunrpc/rpc_pipe_fs.h
@@ -64,7 +64,7 @@ extern void rpc_put_sb_net(const struct net *net);
 
 extern ssize_t rpc_pipe_generic_upcall(struct file *, struct rpc_pipe_msg *,
 				       char __user *, size_t);
-extern int rpc_queue_upcall(struct inode *, struct rpc_pipe_msg *);
+extern int rpc_queue_upcall(struct rpc_pipe *, struct rpc_pipe_msg *);
 
 struct rpc_clnt;
 extern struct dentry *rpc_create_client_dir(struct dentry *, struct qstr *, struct rpc_clnt *);
diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c
index 89fc914..5ba678d 100644
--- a/net/sunrpc/auth_gss/auth_gss.c
+++ b/net/sunrpc/auth_gss/auth_gss.c
@@ -475,8 +475,7 @@ gss_setup_upcall(struct rpc_clnt *clnt, struct gss_auth *gss_auth, struct rpc_cr
 		return gss_new;
 	gss_msg = gss_add_msg(gss_new);
 	if (gss_msg == gss_new) {
-		struct inode *inode = &gss_new->inode->vfs_inode;
-		int res = rpc_queue_upcall(inode, &gss_new->msg);
+		int res = rpc_queue_upcall(gss_new->inode->pipe, &gss_new->msg);
 		if (res) {
 			gss_unhash_msg(gss_new);
 			gss_msg = ERR_PTR(res);
diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
index cecdc1f..dc24af3 100644
--- a/net/sunrpc/rpc_pipe.c
+++ b/net/sunrpc/rpc_pipe.c
@@ -130,9 +130,8 @@ EXPORT_SYMBOL_GPL(rpc_pipe_generic_upcall);
  * initialize the fields of @msg (other than @msg->list) appropriately.
  */
 int
-rpc_queue_upcall(struct inode *inode, struct rpc_pipe_msg *msg)
+rpc_queue_upcall(struct rpc_pipe *pipe, struct rpc_pipe_msg *msg)
 {
-	struct rpc_pipe *pipe = RPC_I(inode)->pipe;
 	int res = -EPIPE;
 
 	spin_lock(&pipe->lock);