nfs: remove the objlayout driver

The objlayout code has been in the tree, but it's been unmaintained and
no server product for it actually ever shipped.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>

1 files changed, 0 insertions, 415 deletions

diff --git a/fs/nfs/objlayout/pnfs_osd_xdr_cli.c b/fs/nfs/objlayout/pnfs_osd_xdr_cli.c
deleted file mode 100644
index f093c7ec983b..000000000000
--- a/fs/nfs/objlayout/pnfs_osd_xdr_cli.c
+++ /dev/null
@@ -1,415 +0,0 @@
-/*
- *  Object-Based pNFS Layout XDR layer
- *
- *  Copyright (C) 2007 Panasas Inc. [year of first publication]
- *  All rights reserved.
- *
- *  Benny Halevy <bhalevy@panasas.com>
- *  Boaz Harrosh <ooo@electrozaur.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/pnfs_osd_xdr.h>
-
-#define NFSDBG_FACILITY         NFSDBG_PNFS_LD
-
-/*
- * The following implementation is based on RFC5664
- */
-
-/*
- * struct pnfs_osd_objid {
- *	struct nfs4_deviceid	oid_device_id;
- *	u64			oid_partition_id;
- *	u64			oid_object_id;
- * }; // xdr size 32 bytes
- */
-static __be32 *
-_osd_xdr_decode_objid(__be32 *p, struct pnfs_osd_objid *objid)
-{
-	p = xdr_decode_opaque_fixed(p, objid->oid_device_id.data,
-				    sizeof(objid->oid_device_id.data));
-
-	p = xdr_decode_hyper(p, &objid->oid_partition_id);
-	p = xdr_decode_hyper(p, &objid->oid_object_id);
-	return p;
-}
-/*
- * struct pnfs_osd_opaque_cred {
- *	u32 cred_len;
- *	void *cred;
- * }; // xdr size [variable]
- * The return pointers are from the xdr buffer
- */
-static int
-_osd_xdr_decode_opaque_cred(struct pnfs_osd_opaque_cred *opaque_cred,
-			    struct xdr_stream *xdr)
-{
-	__be32 *p = xdr_inline_decode(xdr, 1);
-
-	if (!p)
-		return -EINVAL;
-
-	opaque_cred->cred_len = be32_to_cpu(*p++);
-
-	p = xdr_inline_decode(xdr, opaque_cred->cred_len);
-	if (!p)
-		return -EINVAL;
-
-	opaque_cred->cred = p;
-	return 0;
-}
-
-/*
- * struct pnfs_osd_object_cred {
- *	struct pnfs_osd_objid		oc_object_id;
- *	u32				oc_osd_version;
- *	u32				oc_cap_key_sec;
- *	struct pnfs_osd_opaque_cred	oc_cap_key
- *	struct pnfs_osd_opaque_cred	oc_cap;
- * }; // xdr size 32 + 4 + 4 + [variable] + [variable]
- */
-static int
-_osd_xdr_decode_object_cred(struct pnfs_osd_object_cred *comp,
-			    struct xdr_stream *xdr)
-{
-	__be32 *p = xdr_inline_decode(xdr, 32 + 4 + 4);
-	int ret;
-
-	if (!p)
-		return -EIO;
-
-	p = _osd_xdr_decode_objid(p, &comp->oc_object_id);
-	comp->oc_osd_version = be32_to_cpup(p++);
-	comp->oc_cap_key_sec = be32_to_cpup(p);
-
-	ret = _osd_xdr_decode_opaque_cred(&comp->oc_cap_key, xdr);
-	if (unlikely(ret))
-		return ret;
-
-	ret = _osd_xdr_decode_opaque_cred(&comp->oc_cap, xdr);
-	return ret;
-}
-
-/*
- * struct pnfs_osd_data_map {
- *	u32	odm_num_comps;
- *	u64	odm_stripe_unit;
- *	u32	odm_group_width;
- *	u32	odm_group_depth;
- *	u32	odm_mirror_cnt;
- *	u32	odm_raid_algorithm;
- * }; // xdr size 4 + 8 + 4 + 4 + 4 + 4
- */
-static inline int
-_osd_data_map_xdr_sz(void)
-{
-	return 4 + 8 + 4 + 4 + 4 + 4;
-}
-
-static __be32 *
-_osd_xdr_decode_data_map(__be32 *p, struct pnfs_osd_data_map *data_map)
-{
-	data_map->odm_num_comps = be32_to_cpup(p++);
-	p = xdr_decode_hyper(p, &data_map->odm_stripe_unit);
-	data_map->odm_group_width = be32_to_cpup(p++);
-	data_map->odm_group_depth = be32_to_cpup(p++);
-	data_map->odm_mirror_cnt = be32_to_cpup(p++);
-	data_map->odm_raid_algorithm = be32_to_cpup(p++);
-	dprintk("%s: odm_num_comps=%u odm_stripe_unit=%llu odm_group_width=%u "
-		"odm_group_depth=%u odm_mirror_cnt=%u odm_raid_algorithm=%u\n",
-		__func__,
-		data_map->odm_num_comps,
-		(unsigned long long)data_map->odm_stripe_unit,
-		data_map->odm_group_width,
-		data_map->odm_group_depth,
-		data_map->odm_mirror_cnt,
-		data_map->odm_raid_algorithm);
-	return p;
-}
-
-int pnfs_osd_xdr_decode_layout_map(struct pnfs_osd_layout *layout,
-	struct pnfs_osd_xdr_decode_layout_iter *iter, struct xdr_stream *xdr)
-{
-	__be32 *p;
-
-	memset(iter, 0, sizeof(*iter));
-
-	p = xdr_inline_decode(xdr, _osd_data_map_xdr_sz() + 4 + 4);
-	if (unlikely(!p))
-		return -EINVAL;
-
-	p = _osd_xdr_decode_data_map(p, &layout->olo_map);
-	layout->olo_comps_index = be32_to_cpup(p++);
-	layout->olo_num_comps = be32_to_cpup(p++);
-	dprintk("%s: olo_comps_index=%d olo_num_comps=%d\n", __func__,
-		layout->olo_comps_index, layout->olo_num_comps);
-
-	iter->total_comps = layout->olo_num_comps;
-	return 0;
-}
-
-bool pnfs_osd_xdr_decode_layout_comp(struct pnfs_osd_object_cred *comp,
-	struct pnfs_osd_xdr_decode_layout_iter *iter, struct xdr_stream *xdr,
-	int *err)
-{
-	BUG_ON(iter->decoded_comps > iter->total_comps);
-	if (iter->decoded_comps == iter->total_comps)
-		return false;
-
-	*err = _osd_xdr_decode_object_cred(comp, xdr);
-	if (unlikely(*err)) {
-		dprintk("%s: _osd_xdr_decode_object_cred=>%d decoded_comps=%d "
-			"total_comps=%d\n", __func__, *err,
-			iter->decoded_comps, iter->total_comps);
-		return false; /* stop the loop */
-	}
-	dprintk("%s: dev(%llx:%llx) par=0x%llx obj=0x%llx "
-		"key_len=%u cap_len=%u\n",
-		__func__,
-		_DEVID_LO(&comp->oc_object_id.oid_device_id),
-		_DEVID_HI(&comp->oc_object_id.oid_device_id),
-		comp->oc_object_id.oid_partition_id,
-		comp->oc_object_id.oid_object_id,
-		comp->oc_cap_key.cred_len, comp->oc_cap.cred_len);
-
-	iter->decoded_comps++;
-	return true;
-}
-
-/*
- * Get Device Information Decoding
- *
- * Note: since Device Information is currently done synchronously, all
- *       variable strings fields are left inside the rpc buffer and are only
- *       pointed to by the pnfs_osd_deviceaddr members. So the read buffer
- *       should not be freed while the returned information is in use.
- */
-/*
- *struct nfs4_string {
- *	unsigned int len;
- *	char *data;
- *}; // size [variable]
- * NOTE: Returned string points to inside the XDR buffer
- */
-static __be32 *
-__read_u8_opaque(__be32 *p, struct nfs4_string *str)
-{
-	str->len = be32_to_cpup(p++);
-	str->data = (char *)p;
-
-	p += XDR_QUADLEN(str->len);
-	return p;
-}
-
-/*
- * struct pnfs_osd_targetid {
- *	u32			oti_type;
- *	struct nfs4_string	oti_scsi_device_id;
- * };// size 4 + [variable]
- */
-static __be32 *
-__read_targetid(__be32 *p, struct pnfs_osd_targetid* targetid)
-{
-	u32 oti_type;
-
-	oti_type = be32_to_cpup(p++);
-	targetid->oti_type = oti_type;
-
-	switch (oti_type) {
-	case OBJ_TARGET_SCSI_NAME:
-	case OBJ_TARGET_SCSI_DEVICE_ID:
-		p = __read_u8_opaque(p, &targetid->oti_scsi_device_id);
-	}
-
-	return p;
-}
-
-/*
- * struct pnfs_osd_net_addr {
- *	struct nfs4_string	r_netid;
- *	struct nfs4_string	r_addr;
- * };
- */
-static __be32 *
-__read_net_addr(__be32 *p, struct pnfs_osd_net_addr* netaddr)
-{
-	p = __read_u8_opaque(p, &netaddr->r_netid);
-	p = __read_u8_opaque(p, &netaddr->r_addr);
-
-	return p;
-}
-
-/*
- * struct pnfs_osd_targetaddr {
- *	u32				ota_available;
- *	struct pnfs_osd_net_addr	ota_netaddr;
- * };
- */
-static __be32 *
-__read_targetaddr(__be32 *p, struct pnfs_osd_targetaddr *targetaddr)
-{
-	u32 ota_available;
-
-	ota_available = be32_to_cpup(p++);
-	targetaddr->ota_available = ota_available;
-
-	if (ota_available)
-		p = __read_net_addr(p, &targetaddr->ota_netaddr);
-
-
-	return p;
-}
-
-/*
- * struct pnfs_osd_deviceaddr {
- *	struct pnfs_osd_targetid	oda_targetid;
- *	struct pnfs_osd_targetaddr	oda_targetaddr;
- *	u8				oda_lun[8];
- *	struct nfs4_string		oda_systemid;
- *	struct pnfs_osd_object_cred	oda_root_obj_cred;
- *	struct nfs4_string		oda_osdname;
- * };
- */
-
-/* We need this version for the pnfs_osd_xdr_decode_deviceaddr which does
- * not have an xdr_stream
- */
-static __be32 *
-__read_opaque_cred(__be32 *p,
-			      struct pnfs_osd_opaque_cred *opaque_cred)
-{
-	opaque_cred->cred_len = be32_to_cpu(*p++);
-	opaque_cred->cred = p;
-	return p + XDR_QUADLEN(opaque_cred->cred_len);
-}
-
-static __be32 *
-__read_object_cred(__be32 *p, struct pnfs_osd_object_cred *comp)
-{
-	p = _osd_xdr_decode_objid(p, &comp->oc_object_id);
-	comp->oc_osd_version = be32_to_cpup(p++);
-	comp->oc_cap_key_sec = be32_to_cpup(p++);
-
-	p = __read_opaque_cred(p, &comp->oc_cap_key);
-	p = __read_opaque_cred(p, &comp->oc_cap);
-	return p;
-}
-
-void pnfs_osd_xdr_decode_deviceaddr(
-	struct pnfs_osd_deviceaddr *deviceaddr, __be32 *p)
-{
-	p = __read_targetid(p, &deviceaddr->oda_targetid);
-
-	p = __read_targetaddr(p, &deviceaddr->oda_targetaddr);
-
-	p = xdr_decode_opaque_fixed(p, deviceaddr->oda_lun,
-				    sizeof(deviceaddr->oda_lun));
-
-	p = __read_u8_opaque(p, &deviceaddr->oda_systemid);
-
-	p = __read_object_cred(p, &deviceaddr->oda_root_obj_cred);
-
-	p = __read_u8_opaque(p, &deviceaddr->oda_osdname);
-
-	/* libosd likes this terminated in dbg. It's last, so no problems */
-	deviceaddr->oda_osdname.data[deviceaddr->oda_osdname.len] = 0;
-}
-
-/*
- * struct pnfs_osd_layoutupdate {
- *	u32	dsu_valid;
- *	s64	dsu_delta;
- *	u32	olu_ioerr_flag;
- * }; xdr size 4 + 8 + 4
- */
-int
-pnfs_osd_xdr_encode_layoutupdate(struct xdr_stream *xdr,
-				 struct pnfs_osd_layoutupdate *lou)
-{
-	__be32 *p = xdr_reserve_space(xdr,  4 + 8 + 4);
-
-	if (!p)
-		return -E2BIG;
-
-	*p++ = cpu_to_be32(lou->dsu_valid);
-	if (lou->dsu_valid)
-		p = xdr_encode_hyper(p, lou->dsu_delta);
-	*p++ = cpu_to_be32(lou->olu_ioerr_flag);
-	return 0;
-}
-
-/*
- * struct pnfs_osd_objid {
- *	struct nfs4_deviceid	oid_device_id;
- *	u64			oid_partition_id;
- *	u64			oid_object_id;
- * }; // xdr size 32 bytes
- */
-static inline __be32 *
-pnfs_osd_xdr_encode_objid(__be32 *p, struct pnfs_osd_objid *object_id)
-{
-	p = xdr_encode_opaque_fixed(p, &object_id->oid_device_id.data,
-				    sizeof(object_id->oid_device_id.data));
-	p = xdr_encode_hyper(p, object_id->oid_partition_id);
-	p = xdr_encode_hyper(p, object_id->oid_object_id);
-
-	return p;
-}
-
-/*
- * struct pnfs_osd_ioerr {
- *	struct pnfs_osd_objid	oer_component;
- *	u64			oer_comp_offset;
- *	u64			oer_comp_length;
- *	u32			oer_iswrite;
- *	u32			oer_errno;
- * }; // xdr size 32 + 24 bytes
- */
-void pnfs_osd_xdr_encode_ioerr(__be32 *p, struct pnfs_osd_ioerr *ioerr)
-{
-	p = pnfs_osd_xdr_encode_objid(p, &ioerr->oer_component);
-	p = xdr_encode_hyper(p, ioerr->oer_comp_offset);
-	p = xdr_encode_hyper(p, ioerr->oer_comp_length);
-	*p++ = cpu_to_be32(ioerr->oer_iswrite);
-	*p   = cpu_to_be32(ioerr->oer_errno);
-}
-
-__be32 *pnfs_osd_xdr_ioerr_reserve_space(struct xdr_stream *xdr)
-{
-	__be32 *p;
-
-	p = xdr_reserve_space(xdr, 32 + 24);
-	if (unlikely(!p))
-		dprintk("%s: out of xdr space\n", __func__);
-
-	return p;
-}