X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=net%2Fsunrpc%2Frpc_pipe.c;h=c9b57f47108c7005de24bff6146e7ac90964a665;hb=c381060869317b3c84430d4f54965d409cbfe65f;hp=1b395a41a8b2336f9d7ce73dad93549129945248;hpb=4adeaaf51ebcc3f629f5512b96aebb5089388bca;p=linux-2.6-omap-h63xx.git

diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
index 1b395a41a8b..c9b57f47108 100644
--- a/net/sunrpc/rpc_pipe.c
+++ b/net/sunrpc/rpc_pipe.c
@@ -113,7 +113,7 @@ out:
 	wake_up(&rpci->waitq);
 	return res;
 }
-EXPORT_SYMBOL(rpc_queue_upcall);
+EXPORT_SYMBOL_GPL(rpc_queue_upcall);
 
 static inline void
 rpc_inode_setowner(struct inode *inode, void *private)
@@ -169,16 +169,24 @@ static int
 rpc_pipe_open(struct inode *inode, struct file *filp)
 {
 	struct rpc_inode *rpci = RPC_I(inode);
+	int first_open;
 	int res = -ENXIO;
 
 	mutex_lock(&inode->i_mutex);
-	if (rpci->ops != NULL) {
-		if (filp->f_mode & FMODE_READ)
-			rpci->nreaders ++;
-		if (filp->f_mode & FMODE_WRITE)
-			rpci->nwriters ++;
-		res = 0;
+	if (rpci->ops == NULL)
+		goto out;
+	first_open = rpci->nreaders == 0 && rpci->nwriters == 0;
+	if (first_open && rpci->ops->open_pipe) {
+		res = rpci->ops->open_pipe(inode);
+		if (res)
+			goto out;
 	}
+	if (filp->f_mode & FMODE_READ)
+		rpci->nreaders++;
+	if (filp->f_mode & FMODE_WRITE)
+		rpci->nwriters++;
+	res = 0;
+out:
 	mutex_unlock(&inode->i_mutex);
 	return res;
 }
@@ -479,13 +487,13 @@ rpc_lookup_parent(char *path, struct nameidata *nd)
 	mnt = rpc_get_mount();
 	if (IS_ERR(mnt)) {
 		printk(KERN_WARNING "%s: %s failed to mount "
-			       "pseudofilesystem \n", __FILE__, __FUNCTION__);
+			       "pseudofilesystem \n", __FILE__, __func__);
 		return PTR_ERR(mnt);
 	}
 
 	if (vfs_path_lookup(mnt->mnt_root, mnt, path, LOOKUP_PARENT, nd)) {
 		printk(KERN_WARNING "%s: %s failed to find path %s\n",
-				__FILE__, __FUNCTION__, path);
+				__FILE__, __func__, path);
 		rpc_put_mount();
 		return -ENOENT;
 	}
@@ -604,7 +612,7 @@ rpc_populate(struct dentry *parent,
 out_bad:
 	mutex_unlock(&dir->i_mutex);
 	printk(KERN_WARNING "%s: %s failed to populate directory %s\n",
-			__FILE__, __FUNCTION__, parent->d_name.name);
+			__FILE__, __func__, parent->d_name.name);
 	return -ENOMEM;
 }
 
@@ -623,7 +631,7 @@ __rpc_mkdir(struct inode *dir, struct dentry *dentry)
 	return 0;
 out_err:
 	printk(KERN_WARNING "%s: %s failed to allocate inode for dentry %s\n",
-			__FILE__, __FUNCTION__, dentry->d_name.name);
+			__FILE__, __func__, dentry->d_name.name);
 	return -ENOMEM;
 }
 
@@ -715,7 +723,7 @@ err_depopulate:
 err_dput:
 	dput(dentry);
 	printk(KERN_WARNING "%s: %s() failed to create directory %s (errno = %d)\n",
-			__FILE__, __FUNCTION__, path, error);
+			__FILE__, __func__, path, error);
 	dentry = ERR_PTR(error);
 	goto out;
 }
@@ -748,7 +756,7 @@ rpc_rmdir(struct dentry *dentry)
  * @name: name of pipe
  * @private: private data to associate with the pipe, for the caller's use
  * @ops: operations defining the behavior of the pipe: upcall, downcall,
- *	release_pipe, and destroy_msg.
+ *	release_pipe, open_pipe, and destroy_msg.
  * @flags: rpc_inode flags
  *
  * Data is made available for userspace to read by calls to
@@ -804,11 +812,11 @@ err_dput:
 	dput(dentry);
 	dentry = ERR_PTR(-ENOMEM);
 	printk(KERN_WARNING "%s: %s() failed to create pipe %s/%s (errno = %d)\n",
-			__FILE__, __FUNCTION__, parent->d_name.name, name,
+			__FILE__, __func__, parent->d_name.name, name,
 			-ENOMEM);
 	goto out;
 }
-EXPORT_SYMBOL(rpc_mkpipe);
+EXPORT_SYMBOL_GPL(rpc_mkpipe);
 
 /**
  * rpc_unlink - remove a pipe
@@ -839,7 +847,7 @@ rpc_unlink(struct dentry *dentry)
 	dput(parent);
 	return error;
 }
-EXPORT_SYMBOL(rpc_unlink);
+EXPORT_SYMBOL_GPL(rpc_unlink);
 
 /*
  * populate the filesystem
@@ -897,7 +905,7 @@ static struct file_system_type rpc_pipe_fs_type = {
 };
 
 static void
-init_once(struct kmem_cache * cachep, void *foo)
+init_once(void *foo)
 {
 	struct rpc_inode *rpci = (struct rpc_inode *) foo;