Remove the additional fs_vnode_ops arugment from get_vnode() again as it's not

needed at all when used as intended. Thanks Ingo for the explanation on how this
is intended to work. Adjusted the overlay fs accordingly and updated/reverted
the changes to the other filesystems.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@29250 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/os/drivers/fs_interface.h

@@ -310,7 +310,7 @@ extern status_t publish_vnode(fs_volume *volume, ino_t vnodeID,
 					void *privateNode, fs_vnode_ops *ops, int type,
 					uint32 flags);
 extern status_t get_vnode(fs_volume *volume, ino_t vnodeID,
-					void **_privateNode, fs_vnode_ops **_vnodeOps);
+					void **_privateNode);
 extern status_t put_vnode(fs_volume *volume, ino_t vnodeID);
 extern status_t acquire_vnode(fs_volume *volume, ino_t vnodeID);
 extern status_t remove_vnode(fs_volume *volume, ino_t vnodeID);

headers/private/fs_shell/fssh_fs_interface.h

@@ -344,8 +344,7 @@ extern fssh_status_t fssh_publish_vnode(fssh_fs_volume *volume,
 				fssh_vnode_id vnodeID, void *privateNode,
 				fssh_fs_vnode_ops *ops, int type, uint32_t flags);
 extern fssh_status_t fssh_get_vnode(fssh_fs_volume *volume,
-				fssh_vnode_id vnodeID, void **_privateNode,
-				fssh_fs_vnode_ops **_vnodeOps);
+				fssh_vnode_id vnodeID, void **_privateNode);
 extern fssh_status_t fssh_put_vnode(fssh_fs_volume *volume,
 				fssh_vnode_id vnodeID);
 extern fssh_status_t fssh_acquire_vnode(fssh_fs_volume *volume,

src/add-ons/kernel/file_systems/bfs/Inode.cpp

@@ -2701,7 +2701,7 @@ AttributeIterator::GetNext(char* name, size_t* _length, uint32* _type,
 	// if you haven't yet access to the attributes directory, get it
 	if (fAttributes == NULL) {
 		if (get_vnode(volume->FSVolume(), volume->ToVnode(fInode->Attributes()),
-				(void**)&fAttributes, NULL) != B_OK) {
+				(void**)&fAttributes) != B_OK) {
 			FATAL(("get_vnode() failed in AttributeIterator::GetNext(ino_t"
 				" = %Ld,name = \"%s\")\n", fInode->ID(), name));
 			return B_ENTRY_NOT_FOUND;

src/add-ons/kernel/file_systems/bfs/Inode.h

@@ -354,8 +354,7 @@ public:
 	{
 		Unset();
 
-		return fStatus = get_vnode(volume->FSVolume(), id, (void**)&fInode,
-			NULL);
+		return fStatus = get_vnode(volume->FSVolume(), id, (void**)&fInode);
 	}
 
 	status_t SetTo(Volume* volume, block_run run)

src/add-ons/kernel/file_systems/bfs/kernel_interface.cpp

@@ -556,7 +556,7 @@ bfs_lookup(fs_volume* _volume, fs_vnode* _directory, const char* file,
 	locker.Unlock();
 
 	Inode* inode;
-	status = get_vnode(volume->FSVolume(), *_vnodeID, (void**)&inode, NULL);
+	status = get_vnode(volume->FSVolume(), *_vnodeID, (void**)&inode);
 	if (status != B_OK) {
 		REPORT_ERROR(status);
 		return B_ENTRY_NOT_FOUND;

src/add-ons/kernel/file_systems/cdda/kernel_interface.cpp

@@ -1493,7 +1493,7 @@ cdda_lookup(fs_volume* _volume, fs_vnode* _dir, const char* name, ino_t* _id)
 	if (inode == NULL)
 		return B_ENTRY_NOT_FOUND;
 
-	status = get_vnode(volume->FSVolume(), inode->ID(), NULL, NULL);
+	status = get_vnode(volume->FSVolume(), inode->ID(), NULL);
 	if (status < B_OK)
 		return status;
 

src/add-ons/kernel/file_systems/ext2/Volume.cpp

@@ -310,7 +310,7 @@ Volume::Mount(const char* deviceName, uint32 flags)
 	if ((fBlockCache = opener.InitCache(NumBlocks(), fBlockSize)) == NULL)
 		return B_ERROR;
 
-	status = get_vnode(fFSVolume, EXT2_ROOT_NODE, (void**)&fRootNode, NULL);
+	status = get_vnode(fFSVolume, EXT2_ROOT_NODE, (void**)&fRootNode);
 	if (status != B_OK) {
 		TRACE("could not create root node: get_vnode() failed!\n");
 		return status;

src/add-ons/kernel/file_systems/ext2/kernel_interface.cpp

@@ -319,7 +319,7 @@ ext2_lookup(fs_volume* _volume, fs_vnode* _directory, const char* name,
 			break;
 	}
 
-	return get_vnode(volume->FSVolume(), *_vnodeID, NULL, NULL);
+	return get_vnode(volume->FSVolume(), *_vnodeID, NULL);
 }
 
 

src/add-ons/kernel/file_systems/fat/dir.c

@@ -433,7 +433,7 @@ findfile(nspace *vol, vnode *dir, const char *file, ino_t *vnid,
 		if (vnid)
 			*vnid = found_vnid;
 		if (node)
-			result = get_vnode(vol->volume, found_vnid, (void **)node, NULL);
+			result = get_vnode(vol->volume, found_vnid, (void **)node);
 		result = B_OK;
 	} else {
 		result = ENOENT;

src/add-ons/kernel/file_systems/fat/file.c

@@ -890,7 +890,7 @@ dosfs_create(fs_volume *_vol, fs_vnode *_dir, const char *name, int omode,
 		*vnid = dummy.vnid;
 		dummy.magic = ~VNODE_MAGIC;
 
-		result = get_vnode(_vol, *vnid, (void **)&file, NULL);
+		result = get_vnode(_vol, *vnid, (void **)&file);
 		if (result < B_OK) {
 			if (vol->fs_flags & FS_FLAGS_OP_SYNC)
 				_dosfs_sync(vol);
@@ -1155,7 +1155,7 @@ dosfs_rename(fs_volume *_vol, fs_vnode *_odir, const char *oldname,
 			if (vnid == vol->root_vnode.vnid)
 				break;
 
-			result = get_vnode(_vol, vnid, (void **)&dir, NULL);
+			result = get_vnode(_vol, vnid, (void **)&dir);
 			if (result < B_OK)
 				goto bi1;
 			parent = dir->dir_vnid;

src/add-ons/kernel/file_systems/iso9660/kernel_interface.cpp

@@ -225,12 +225,12 @@ fs_walk(fs_volume *_vol, fs_vnode *_base, const char *file, ino_t *_vnodeID)
 		// base directory
 		TRACE(("fs_walk - found \".\" file.\n"));
 		*_vnodeID = baseNode->id;
-		return get_vnode(_vol, *_vnodeID, NULL, NULL);
+		return get_vnode(_vol, *_vnodeID, NULL);
 	} else if (strcmp(file, "..") == 0) {
 		// parent directory
 		TRACE(("fs_walk - found \"..\" file.\n"));
 		*_vnodeID = baseNode->parID;
-		return get_vnode(_vol, *_vnodeID, NULL, NULL);
+		return get_vnode(_vol, *_vnodeID, NULL);
 	}
 
 	// look up file in the directory
@@ -273,7 +273,7 @@ fs_walk(fs_volume *_vol, fs_vnode *_base, const char *file, ino_t *_vnodeID)
 						TRACE(("fs_walk - New vnode id is %Ld\n", *_vnodeID));
 
 						result = get_vnode(_vol, *_vnodeID,
-							(void **)&newNode, NULL);
+							(void **)&newNode);
 						if (result == B_OK) {
 							newNode->parID = baseNode->id;
 							done = true;

src/add-ons/kernel/file_systems/nfs/nfs_add_on.c

@@ -898,7 +898,7 @@ fs_walk(fs_volume *_volume, fs_vnode *_base, const char *file, ino_t *vnid)
 		isLink=S_ISLNK(st.st_mode);
 	}
 
-	if ((result=get_vnode (_volume,*vnid,(void **)&dummy,NULL))<B_OK)
+	if ((result=get_vnode (_volume,*vnid,(void **)&dummy))<B_OK)
 		return result;
 
 	return B_OK;
@@ -1755,7 +1755,7 @@ fs_create(fs_volume *_volume, fs_vnode *_dir, const char *name, int omode, int p
 
 		*vnid=st.st_ino;
 
-		if ((result=get_vnode(_volume,*vnid,&dummy,NULL))<B_OK)
+		if ((result=get_vnode(_volume,*vnid,&dummy))<B_OK)
 			return result;
 
 		if (S_ISDIR(st.st_mode))
@@ -1901,7 +1901,7 @@ fs_unlink(fs_volume *_volume, fs_vnode *_dir, const char *name)
 
 	insert_node (ns,newNode);
 
-	if ((result=get_vnode(_volume,st.st_ino,(void **)&dummy,NULL))<B_OK)
+	if ((result=get_vnode(_volume,st.st_ino,(void **)&dummy))<B_OK)
 	{
 		XDRInPacketDestroy (&reply);
 		XDROutPacketDestroy (&call);
@@ -2195,7 +2195,7 @@ fs_rmdir(fs_volume *_volume, fs_vnode *_dir, const char *name)
 
 	insert_node (ns,newNode);
 
-	if ((result=get_vnode(_volume,st.st_ino,(void **)&dummy,NULL))<B_OK)
+	if ((result=get_vnode(_volume,st.st_ino,(void **)&dummy))<B_OK)
 	{
 		XDRInPacketDestroy(&reply);
 		XDROutPacketDestroy(&call);
@@ -2341,7 +2341,7 @@ fs_symlink(fs_volume *_volume, fs_vnode *_dir, const char *name, const char *pat
 	if (result==B_OK)
 	{
 		void *dummy;
-		if ((result=get_vnode(_volume,st.st_ino,&dummy,NULL))<B_OK)
+		if ((result=get_vnode(_volume,st.st_ino,&dummy))<B_OK)
 			return result;
 
 		XDRInPacketDestroy (&reply);

src/add-ons/kernel/file_systems/overlay/overlay.cpp

@@ -65,6 +65,7 @@ public:
 
 		status_t			AllLayersMounted();
 
+		fs_volume *			Volume() { return fVolume; }
 		fs_volume *			SuperVolume() { return fVolume->super_volume; }
 
 		bool				WriteSupport() { return fWriteSupport; }
@@ -83,6 +84,7 @@ public:
 
 		status_t			InitCheck();
 
+		fs_volume *			Volume() { return fVolume->Volume(); }
 		fs_volume *			SuperVolume() { return fVolume->SuperVolume(); }
 		fs_vnode *			SuperVnode() { return &fSuperVnode; }
 		ino_t				InodeNumber() { return fInodeNumber; }
@@ -114,7 +116,8 @@ private:
 
 class AttributeFile {
 public:
-							AttributeFile(fs_volume *volume, fs_vnode *vnode);
+							AttributeFile(fs_volume *overlay, fs_volume *volume,
+								fs_vnode *vnode);
 							~AttributeFile();
 
 		status_t			InitCheck() { return fStatus; }
@@ -123,8 +126,8 @@ public:
 		ino_t				FileInode() { return fFileInode; }
 
 		status_t			CreateEmpty();
-		status_t			WriteAttributeFile(fs_volume *volume,
-								fs_vnode *vnode);
+		status_t			WriteAttributeFile(fs_volume *overlay,
+								fs_volume *volume, fs_vnode *vnode);
 
 		status_t			ReadAttributeDir(struct dirent *dirent,
 								size_t bufferSize, uint32 *numEntries,
@@ -286,8 +289,8 @@ status_t
 OverlayInode::GetAttributeFile(AttributeFile **attributeFile)
 {
 	if (fAttributeFile == NULL) {
-		fAttributeFile = new(std::nothrow) AttributeFile(SuperVolume(),
-			&fSuperVnode);
+		fAttributeFile = new(std::nothrow) AttributeFile(Volume(),
+			SuperVolume(), &fSuperVnode);
 		if (fAttributeFile == NULL) {
 			TRACE_ALWAYS("no memory to allocate attribute file\n");
 			return B_NO_MEMORY;
@@ -321,7 +324,8 @@ OverlayInode::WriteAttributeFile()
 	if (result != B_OK)
 		return result;
 
-	return fAttributeFile->WriteAttributeFile(SuperVolume(), &fSuperVnode);
+	return fAttributeFile->WriteAttributeFile(Volume(), SuperVolume(),
+		&fSuperVnode);
 }
 
 
@@ -553,7 +557,8 @@ OverlayInode::Write(void *_cookie, off_t position, const void *buffer,
 //	#pragma mark AttributeFile
 
 
-AttributeFile::AttributeFile(fs_volume *volume, fs_vnode *vnode)
+AttributeFile::AttributeFile(fs_volume *overlay, fs_volume *volume,
+	fs_vnode *vnode)
 	:	fStatus(B_NO_INIT),
 		fVolumeID(volume->id),
 		fFileInode(0),
@@ -633,13 +638,14 @@ AttributeFile::AttributeFile(fs_volume *volume, fs_vnode *vnode)
 		else if (i == 2)
 			fAttributeFileInode = inodeNumber;
 
-		fStatus = get_vnode(volume, inodeNumber, &currentVnode.private_node,
-			&currentVnode.ops);
+		OverlayInode *overlayInode = NULL;
+		fStatus = get_vnode(overlay, inodeNumber, (void **)&overlayInode);
 		if (fStatus != B_OK) {
 			TRACE_ALWAYS("getting vnode failed: %s\n", strerror(fStatus));
 			return;
 		}
 
+		currentVnode = *overlayInode->SuperVnode();
 		lastInodeNumber = inodeNumber;
 	}
 
@@ -767,7 +773,8 @@ AttributeFile::CreateEmpty()
 
 
 status_t
-AttributeFile::WriteAttributeFile(fs_volume *volume, fs_vnode *vnode)
+AttributeFile::WriteAttributeFile(fs_volume *overlay, fs_volume *volume,
+	fs_vnode *vnode)
 {
 	if (fFile == NULL)
 		return B_NO_INIT;
@@ -787,15 +794,17 @@ AttributeFile::WriteAttributeFile(fs_volume *volume, fs_vnode *vnode)
 	}
 
 	fs_vnode currentVnode;
+	OverlayInode *overlayInode = NULL;
 	if (fAttributeDirInode == 0) {
-		result = get_vnode(volume, fDirectoryInode,
-			&currentVnode.private_node, &currentVnode.ops);
+		result = get_vnode(overlay, fDirectoryInode, (void **)&overlayInode);
 		if (result != B_OK) {
 			TRACE_ALWAYS("failed to get directory vnode: %s\n",
 				strerror(result));
 			return result;
 		}
 
+		currentVnode = *overlayInode->SuperVnode();
+
 		// create the attribute directory
 		result = currentVnode.ops->create_dir(volume, &currentVnode,
 			ATTRIBUTE_OVERLAY_ATTRIBUTE_DIR_NAME, S_IRWXU | S_IRWXG | S_IRWXO,
@@ -813,14 +822,15 @@ AttributeFile::WriteAttributeFile(fs_volume *volume, fs_vnode *vnode)
 
 	void *attrFileCookie = NULL;
 	if (fAttributeFileInode == 0) {
-		result = get_vnode(volume, fAttributeDirInode,
-			&currentVnode.private_node, &currentVnode.ops);
+		result = get_vnode(overlay, fAttributeDirInode, (void **)&overlayInode);
 		if (result != B_OK) {
 			TRACE_ALWAYS("failed to get attribute directory vnode: %s\n",
 				strerror(result));
 			return result;
 		}
 
+		currentVnode = *overlayInode->SuperVnode();
+
 		// create the attribute file
 		result = currentVnode.ops->create(volume, &currentVnode,
 			nameBuffer, O_RDWR | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR | S_IRGRP
@@ -835,22 +845,24 @@ AttributeFile::WriteAttributeFile(fs_volume *volume, fs_vnode *vnode)
 			return result;
 		}
 
-		result = get_vnode(volume, fAttributeFileInode,
-			&currentVnode.private_node, &currentVnode.ops);
+		result = get_vnode(overlay, fAttributeFileInode, (void **)&overlayInode);
 		if (result != B_OK) {
 			TRACE_ALWAYS("getting attribute file vnode after create failed: %s\n",
 				strerror(result));
 			return result;
 		}
+
+		currentVnode = *overlayInode->SuperVnode();
 	} else {
-		result = get_vnode(volume, fAttributeFileInode,
-			&currentVnode.private_node, &currentVnode.ops);
+		result = get_vnode(overlay, fAttributeFileInode, (void **)&overlayInode);
 		if (result != B_OK) {
 			TRACE_ALWAYS("getting attribute file vnode failed: %s\n",
 				strerror(result));
 			return result;
 		}
 
+		currentVnode = *overlayInode->SuperVnode();
+
 		// open the attribute file
 		result = currentVnode.ops->open(volume, &currentVnode, O_RDWR | O_TRUNC,
 			&attrFileCookie);
@@ -1296,6 +1308,11 @@ static status_t
 overlay_get_super_vnode(fs_volume *volume, fs_vnode *vnode,
 	fs_volume *superVolume, fs_vnode *_superVnode)
 {
+	if (volume == superVolume) {
+		*_superVnode = *vnode;
+		return B_OK;
+	}
+
 	OverlayInode *node = (OverlayInode *)vnode->private_node;
 	fs_vnode *superVnode = node->SuperVnode();
 

src/add-ons/kernel/file_systems/reiserfs/Volume.cpp

@@ -294,7 +294,7 @@ Volume::GetKeyOffsetForName(const char *name, int len, uint64 *result)
 status_t
 Volume::GetVNode(ino_t id, VNode **node)
 {
-	return get_vnode(GetFSVolume(), id, (void**)node, NULL);
+	return get_vnode(GetFSVolume(), id, (void**)node);
 }
 
 // PutVNode

src/system/kernel/device_manager/devfs.cpp

@@ -407,8 +407,7 @@ add_partition(struct devfs* fs, struct devfs_vnode* device, const char* name,
 
 	// increase reference count of raw device -
 	// the partition device really needs it
-	status = get_vnode(fs->volume, device->id, (void**)&partition->raw_device,
-		NULL);
+	status = get_vnode(fs->volume, device->id, (void**)&partition->raw_device);
 	if (status < B_OK)
 		goto err1;
 
@@ -959,7 +958,7 @@ devfs_lookup(fs_volume *_volume, fs_vnode *_dir, const char *name, ino_t *_id)
 		return B_ENTRY_NOT_FOUND;
 	}
 
-	status = get_vnode(fs->volume, vnode->id, NULL, NULL);
+	status = get_vnode(fs->volume, vnode->id, NULL);
 	if (status < B_OK)
 		return status;
 
@@ -1063,7 +1062,7 @@ devfs_create(fs_volume* _volume, fs_vnode* _dir, const char* name, int openMode,
 	if (openMode & O_EXCL)
 		return B_FILE_EXISTS;
 
-	status = get_vnode(fs->volume, vnode->id, NULL, NULL);
+	status = get_vnode(fs->volume, vnode->id, NULL);
 	if (status < B_OK)
 		return status;
 
@@ -2092,7 +2091,7 @@ devfs_unpublish_device(BaseDevice* device, bool disconnect)
 {
 	devfs_vnode* node;
 	status_t status = get_vnode(sDeviceFileSystem->volume, device->ID(),
-		(void**)&node, NULL);
+		(void**)&node);
 	if (status != B_OK)
 		return status;
 

src/system/kernel/fs/rootfs.cpp

@@ -284,7 +284,7 @@ remove_node(struct rootfs *fs, struct rootfs_vnode *directory,
 {
 	// schedule this vnode to be removed when it's ref goes to zero
 
-	bool gotNode = (get_vnode(fs->volume, vnode->id, NULL, NULL) == B_OK);
+	bool gotNode = (get_vnode(fs->volume, vnode->id, NULL) == B_OK);
 
 	status_t status = B_OK;
 	if (gotNode)
@@ -447,7 +447,7 @@ rootfs_lookup(fs_volume *_volume, fs_vnode *_dir, const char *name, ino_t *_id)
 		goto err;
 	}
 
-	status = get_vnode(fs->volume, vnode->id, NULL, NULL);
+	status = get_vnode(fs->volume, vnode->id, NULL);
 	if (status < B_OK)
 		goto err;
 

src/system/kernel/fs/vfs.cpp

@@ -3626,8 +3626,7 @@ publish_vnode(fs_volume *volume, ino_t vnodeID, void *privateNode,
 
 
 extern "C" status_t
-get_vnode(fs_volume *volume, ino_t vnodeID, void **_privateNode,
-	fs_vnode_ops **_vnodeOps)
+get_vnode(fs_volume *volume, ino_t vnodeID, void **_privateNode)
 {
 	struct vnode *vnode;
 
@@ -3653,14 +3652,8 @@ get_vnode(fs_volume *volume, ino_t vnodeID, void **_privateNode,
 
 		if (_privateNode != NULL)
 			*_privateNode = resolvedNode.private_node;
-		if (_vnodeOps != NULL)
-			*_vnodeOps = resolvedNode.ops;
-	} else {
-		if (_privateNode != NULL)
-			*_privateNode = vnode->private_node;
-		if (_vnodeOps != NULL)
-			*_vnodeOps = vnode->ops;
-	}
+	} else if (_privateNode != NULL)
+		*_privateNode = vnode->private_node;
 
 	return B_OK;
 }
@@ -4054,7 +4047,7 @@ vfs_get_fs_node_from_path(fs_volume *volume, const char *path, bool kernel,
 	}
 
 	// Use get_vnode() to resolve the cookie for the right layer.
-	status = get_vnode(volume, vnode->id, _node, NULL);
+	status = get_vnode(volume, vnode->id, _node);
 	put_vnode(vnode);
 
 	return status;

src/tools/fs_shell/vfs.cpp

@@ -1986,7 +1986,7 @@ fssh_publish_vnode(fssh_fs_volume *volume, fssh_vnode_id vnodeID,
 
 extern "C" fssh_status_t
 fssh_get_vnode(fssh_fs_volume *volume, fssh_vnode_id vnodeID,
-	void **privateNode, fssh_fs_vnode_ops **vnodeOps)
+	void **privateNode)
 {
 	struct vnode *vnode;
 
@@ -2012,14 +2012,8 @@ fssh_get_vnode(fssh_fs_volume *volume, fssh_vnode_id vnodeID,
 
 		if (privateNode != NULL)
 			*privateNode = resolvedNode.private_node;
-		if (vnodeOps != NULL)
-			*vnodeOps = resolvedNode.ops;
-	} else {
-		if (privateNode != NULL)
-			*privateNode = vnode->private_node;
-		if (vnodeOps != NULL)
-			*vnodeOps = vnode->ops;
-	}
+	} else if (privateNode != NULL)
+		*privateNode = vnode->private_node;
 
 	return FSSH_B_OK;
 }
@@ -2451,7 +2445,7 @@ vfs_get_fs_node_from_path(fssh_fs_volume *volume, const char *path, bool kernel,
 	}
 
 	// Use get_vnode() to resolve the cookie for the right layer.
-	status = ::fssh_get_vnode(volume, vnode->id, _node, NULL);
+	status = ::fssh_get_vnode(volume, vnode->id, _node);
 	put_vnode(vnode);
 
 	return FSSH_B_OK;