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Commit c93407d0 authored by Benny Halevy's avatar Benny Halevy Committed by Boaz Harrosh
Browse files

pnfs-obj: objlayoutdriver module skeleton 



* Define the PNFS_OBJLAYOUT Kconfig option in the nfs
  master Kconfig file.
* Add the objlayout driver to the Kernel's Kbuild system.
* Add the fs/nfs/objlayout/Kbuild file for building the
  objlayoutdriver.ko driver
* Define fs/nfs/objlayout/objio_osd.c, register the driver on module
  initialization and unregister on exit.

[pnfs-obj: remove of CONFIG_PNFS fallout]
Signed-off-by: default avatarBoaz Harrosh <bharrosh@panasas.com>
[added "unsure" clause]
[depend on NFS_V4_1]
Signed-off-by: default avatarBenny Halevy <bhalevy@panasas.com>
parent ae50c0b5

fs/nfs/Kconfig

+10 −0
Original line number Diff line number Diff line
@@ -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
Original line number Diff line number Diff line
@@ -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
Original line number Diff line number Diff line 
#

# 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);