tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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: Boaz Harrosh <bharrosh@panasas.com>
[added "unsure" clause]
[depend on NFS_V4_1]
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
authored by
Benny Halevy
and committed by
Boaz Harrosh
c93407d0
ae50c0b5
+93
+10
fs/nfs/Kconfig
+10
fs/nfs/Kconfig
···
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config PNFS_FILE_LAYOUT
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tristate
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config PNFS_OBJLAYOUT
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tristate "Provide support for the pNFS Objects Layout Driver for NFSv4.1 pNFS (EXPERIMENTAL)"
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depends on NFS_FS && NFS_V4_1 && SCSI_OSD_ULD
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help
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Say M here if you want your pNFS client to support the Objects Layout Driver.
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Requires the SCSI osd initiator library (SCSI_OSD_INITIATOR) and
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upper level driver (SCSI_OSD_ULD).
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If unsure, say N.
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config ROOT_NFS
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bool "Root file system on NFS"
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depends on NFS_FS=y && IP_PNP
+2
fs/nfs/Makefile
+2
fs/nfs/Makefile
+5
fs/nfs/objlayout/Kbuild
+5
fs/nfs/objlayout/Kbuild
+76
fs/nfs/objlayout/objio_osd.c
+76
fs/nfs/objlayout/objio_osd.c
···
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/*
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* pNFS Objects layout implementation over open-osd initiator library
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*
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* Copyright (C) 2009 Panasas Inc. [year of first publication]
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* All rights reserved.
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*
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* Benny Halevy <bhalevy@panasas.com>
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* Boaz Harrosh <bharrosh@panasas.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2
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* See the file COPYING included with this distribution for more details.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Panasas company nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <linux/module.h>
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#include "../pnfs.h"
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static struct pnfs_layoutdriver_type objlayout_type = {
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.id = LAYOUT_OSD2_OBJECTS,
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.name = "LAYOUT_OSD2_OBJECTS",
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};
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MODULE_DESCRIPTION("pNFS Layout Driver for OSD2 objects");
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MODULE_AUTHOR("Benny Halevy <bhalevy@panasas.com>");
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MODULE_LICENSE("GPL");
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static int __init
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objlayout_init(void)
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{
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int ret = pnfs_register_layoutdriver(&objlayout_type);
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if (ret)
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printk(KERN_INFO
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"%s: Registering OSD pNFS Layout Driver failed: error=%d\n",
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__func__, ret);
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else
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printk(KERN_INFO "%s: Registered OSD pNFS Layout Driver\n",
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__func__);
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return ret;
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}
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static void __exit
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objlayout_exit(void)
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{
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pnfs_unregister_layoutdriver(&objlayout_type);
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printk(KERN_INFO "%s: Unregistered OSD pNFS Layout Driver\n",
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__func__);
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}
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module_init(objlayout_init);
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module_exit(objlayout_exit);