pnfs-obj: objlayoutdriver module skeleton (c93407d0) · Commits · 戴 / test

fs/nfs/Kconfig

+10 −0

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		@@ -87,6 +87,16 @@ config NFS_V4_1
		config PNFS_FILE_LAYOUT
		tristate

		config PNFS_OBJLAYOUT
		tristate "Provide support for the pNFS Objects Layout Driver for NFSv4.1 pNFS (EXPERIMENTAL)"
		depends on NFS_FS && NFS_V4_1 && SCSI_OSD_ULD
		help
		Say M here if you want your pNFS client to support the Objects Layout Driver.
		Requires the SCSI osd initiator library (SCSI_OSD_INITIATOR) and
		upper level driver (SCSI_OSD_ULD).

		If unsure, say N.

		config ROOT_NFS
		bool "Root file system on NFS"
		depends on NFS_FS=y && IP_PNP

fs/nfs/Makefile

+2 −0

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		@@ -21,3 +21,5 @@ nfs-$(CONFIG_NFS_FSCACHE) += fscache.o fscache-index.o

		obj-$(CONFIG_PNFS_FILE_LAYOUT) += nfs_layout_nfsv41_files.o
		nfs_layout_nfsv41_files-y := nfs4filelayout.o nfs4filelayoutdev.o

		obj-$(CONFIG_PNFS_OBJLAYOUT) += objlayout/

fs/nfs/objlayout/Kbuild

0 → 100644

+5 −0

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		#
		# Makefile for the pNFS Objects Layout Driver kernel module
		#
		objlayoutdriver-y := objio_osd.o
		obj-$(CONFIG_PNFS_OBJLAYOUT) += objlayoutdriver.o

fs/nfs/objlayout/objio_osd.c

0 → 100644

+76 −0

Original line number	Diff line number	Diff line
		/*
		* pNFS Objects layout implementation over open-osd initiator library
		*
		* Copyright (C) 2009 Panasas Inc. [year of first publication]
		* All rights reserved.
		*
		* Benny Halevy <bhalevy@panasas.com>
		* Boaz Harrosh <bharrosh@panasas.com>
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License version 2
		* See the file COPYING included with this distribution for more details.
		*
		* Redistribution and use in source and binary forms, with or without
		* modification, are permitted provided that the following conditions
		* are met:
		*
		* 1. Redistributions of source code must retain the above copyright
		* notice, this list of conditions and the following disclaimer.
		* 2. Redistributions in binary form must reproduce the above copyright
		* notice, this list of conditions and the following disclaimer in the
		* documentation and/or other materials provided with the distribution.
		* 3. Neither the name of the Panasas company nor the names of its
		* contributors may be used to endorse or promote products derived
		* from this software without specific prior written permission.
		*
		* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
		* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
		* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
		* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
		* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
		* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
		* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
		* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
		* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
		* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
		* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
		*/

		#include <linux/module.h>
		#include "../pnfs.h"

		static struct pnfs_layoutdriver_type objlayout_type = {
		.id = LAYOUT_OSD2_OBJECTS,
		.name = "LAYOUT_OSD2_OBJECTS",
		};

		MODULE_DESCRIPTION("pNFS Layout Driver for OSD2 objects");
		MODULE_AUTHOR("Benny Halevy <bhalevy@panasas.com>");
		MODULE_LICENSE("GPL");

		static int __init
		objlayout_init(void)
		{
		int ret = pnfs_register_layoutdriver(&objlayout_type);

		if (ret)
		printk(KERN_INFO
		"%s: Registering OSD pNFS Layout Driver failed: error=%d\n",
		__func__, ret);
		else
		printk(KERN_INFO "%s: Registered OSD pNFS Layout Driver\n",
		__func__);
		return ret;
		}

		static void __exit
		objlayout_exit(void)
		{
		pnfs_unregister_layoutdriver(&objlayout_type);
		printk(KERN_INFO "%s: Unregistered OSD pNFS Layout Driver\n",
		__func__);
		}

		module_init(objlayout_init);
		module_exit(objlayout_exit);

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