1 files changed, 0 insertions, 338 deletions
diff --git a/drivers/staging/lustre/lustre/ptlrpc/llog_client.c b/drivers/staging/lustre/lustre/ptlrpc/llog_client.c
deleted file mode 100644
index 946d538121de..000000000000
--- a/drivers/staging/lustre/lustre/ptlrpc/llog_client.c
+++ /dev/null
@@ -1,338 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.gnu.org/licenses/gpl-2.0.html
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, 2015, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/ptlrpc/llog_client.c
- *
- * remote api for llog - client side
- *
- * Author: Andreas Dilger <adilger@clusterfs.com>
- */
-
-#define DEBUG_SUBSYSTEM S_LOG
-
-#include <obd_class.h>
-#include <lustre_log.h>
-#include <lustre_net.h>
-#include <linux/list.h>
-
-#define LLOG_CLIENT_ENTRY(ctxt, imp) do {				\
-	mutex_lock(&ctxt->loc_mutex);					\
-	if (ctxt->loc_imp) {						\
-		imp = class_import_get(ctxt->loc_imp);			\
-	} else {							\
-		CERROR("ctxt->loc_imp == NULL for context idx %d."	\
-		       "Unable to complete MDS/OSS recovery,"		\
-		       "but I'll try again next time.  Not fatal.\n",	\
-		       ctxt->loc_idx);					\
-		imp = NULL;						\
-		mutex_unlock(&ctxt->loc_mutex);				\
-		return (-EINVAL);					\
-	}								\
-	mutex_unlock(&ctxt->loc_mutex);					\
-} while (0)
-
-#define LLOG_CLIENT_EXIT(ctxt, imp) do {				\
-	mutex_lock(&ctxt->loc_mutex);					\
-	if (ctxt->loc_imp != imp)					\
-		CWARN("loc_imp has changed from %p to %p\n",		\
-		       ctxt->loc_imp, imp);				\
-	class_import_put(imp);						\
-	mutex_unlock(&ctxt->loc_mutex);					\
-} while (0)
-
-/* This is a callback from the llog_* functions.
- * Assumes caller has already pushed us into the kernel context.
- */
-static int llog_client_open(const struct lu_env *env,
-			    struct llog_handle *lgh, struct llog_logid *logid,
-			    char *name, enum llog_open_param open_param)
-{
-	struct obd_import *imp;
-	struct llogd_body *body;
-	struct llog_ctxt *ctxt = lgh->lgh_ctxt;
-	struct ptlrpc_request *req = NULL;
-	int rc;
-
-	LLOG_CLIENT_ENTRY(ctxt, imp);
-
-	/* client cannot create llog */
-	LASSERTF(open_param != LLOG_OPEN_NEW, "%#x\n", open_param);
-	LASSERT(lgh);
-
-	req = ptlrpc_request_alloc(imp, &RQF_LLOG_ORIGIN_HANDLE_CREATE);
-	if (!req) {
-		rc = -ENOMEM;
-		goto out;
-	}
-
-	if (name)
-		req_capsule_set_size(&req->rq_pill, &RMF_NAME, RCL_CLIENT,
-				     strlen(name) + 1);
-
-	rc = ptlrpc_request_pack(req, LUSTRE_LOG_VERSION,
-				 LLOG_ORIGIN_HANDLE_CREATE);
-	if (rc) {
-		ptlrpc_request_free(req);
-		req = NULL;
-		goto out;
-	}
-	ptlrpc_request_set_replen(req);
-
-	body = req_capsule_client_get(&req->rq_pill, &RMF_LLOGD_BODY);
-	if (logid)
-		body->lgd_logid = *logid;
-	body->lgd_ctxt_idx = ctxt->loc_idx - 1;
-
-	if (name) {
-		char *tmp;
-
-		tmp = req_capsule_client_sized_get(&req->rq_pill, &RMF_NAME,
-						   strlen(name) + 1);
-		LASSERT(tmp);
-		strcpy(tmp, name);
-	}
-
-	rc = ptlrpc_queue_wait(req);
-	if (rc)
-		goto out;
-
-	body = req_capsule_server_get(&req->rq_pill, &RMF_LLOGD_BODY);
-	if (!body) {
-		rc = -EFAULT;
-		goto out;
-	}
-
-	lgh->lgh_id = body->lgd_logid;
-	lgh->lgh_ctxt = ctxt;
-out:
-	LLOG_CLIENT_EXIT(ctxt, imp);
-	ptlrpc_req_finished(req);
-	return rc;
-}
-
-static int llog_client_next_block(const struct lu_env *env,
-				  struct llog_handle *loghandle,
-				  int *cur_idx, int next_idx,
-				  __u64 *cur_offset, void *buf, int len)
-{
-	struct obd_import *imp;
-	struct ptlrpc_request *req = NULL;
-	struct llogd_body *body;
-	void *ptr;
-	int rc;
-
-	LLOG_CLIENT_ENTRY(loghandle->lgh_ctxt, imp);
-	req = ptlrpc_request_alloc_pack(imp, &RQF_LLOG_ORIGIN_HANDLE_NEXT_BLOCK,
-					LUSTRE_LOG_VERSION,
-					LLOG_ORIGIN_HANDLE_NEXT_BLOCK);
-	if (!req) {
-		rc = -ENOMEM;
-		goto err_exit;
-	}
-
-	body = req_capsule_client_get(&req->rq_pill, &RMF_LLOGD_BODY);
-	body->lgd_logid = loghandle->lgh_id;
-	body->lgd_ctxt_idx = loghandle->lgh_ctxt->loc_idx - 1;
-	body->lgd_llh_flags = loghandle->lgh_hdr->llh_flags;
-	body->lgd_index = next_idx;
-	body->lgd_saved_index = *cur_idx;
-	body->lgd_len = len;
-	body->lgd_cur_offset = *cur_offset;
-
-	req_capsule_set_size(&req->rq_pill, &RMF_EADATA, RCL_SERVER, len);
-	ptlrpc_request_set_replen(req);
-	rc = ptlrpc_queue_wait(req);
-	if (rc)
-		goto out;
-
-	body = req_capsule_server_get(&req->rq_pill, &RMF_LLOGD_BODY);
-	if (!body) {
-		rc = -EFAULT;
-		goto out;
-	}
-
-	/* The log records are swabbed as they are processed */
-	ptr = req_capsule_server_get(&req->rq_pill, &RMF_EADATA);
-	if (!ptr) {
-		rc = -EFAULT;
-		goto out;
-	}
-
-	*cur_idx = body->lgd_saved_index;
-	*cur_offset = body->lgd_cur_offset;
-
-	memcpy(buf, ptr, len);
-out:
-	ptlrpc_req_finished(req);
-err_exit:
-	LLOG_CLIENT_EXIT(loghandle->lgh_ctxt, imp);
-	return rc;
-}
-
-static int llog_client_prev_block(const struct lu_env *env,
-				  struct llog_handle *loghandle,
-				  int prev_idx, void *buf, int len)
-{
-	struct obd_import *imp;
-	struct ptlrpc_request *req = NULL;
-	struct llogd_body *body;
-	void *ptr;
-	int rc;
-
-	LLOG_CLIENT_ENTRY(loghandle->lgh_ctxt, imp);
-	req = ptlrpc_request_alloc_pack(imp, &RQF_LLOG_ORIGIN_HANDLE_PREV_BLOCK,
-					LUSTRE_LOG_VERSION,
-					LLOG_ORIGIN_HANDLE_PREV_BLOCK);
-	if (!req) {
-		rc = -ENOMEM;
-		goto err_exit;
-	}
-
-	body = req_capsule_client_get(&req->rq_pill, &RMF_LLOGD_BODY);
-	body->lgd_logid = loghandle->lgh_id;
-	body->lgd_ctxt_idx = loghandle->lgh_ctxt->loc_idx - 1;
-	body->lgd_llh_flags = loghandle->lgh_hdr->llh_flags;
-	body->lgd_index = prev_idx;
-	body->lgd_len = len;
-
-	req_capsule_set_size(&req->rq_pill, &RMF_EADATA, RCL_SERVER, len);
-	ptlrpc_request_set_replen(req);
-
-	rc = ptlrpc_queue_wait(req);
-	if (rc)
-		goto out;
-
-	body = req_capsule_server_get(&req->rq_pill, &RMF_LLOGD_BODY);
-	if (!body) {
-		rc = -EFAULT;
-		goto out;
-	}
-
-	ptr = req_capsule_server_get(&req->rq_pill, &RMF_EADATA);
-	if (!ptr) {
-		rc = -EFAULT;
-		goto out;
-	}
-
-	memcpy(buf, ptr, len);
-out:
-	ptlrpc_req_finished(req);
-err_exit:
-	LLOG_CLIENT_EXIT(loghandle->lgh_ctxt, imp);
-	return rc;
-}
-
-static int llog_client_read_header(const struct lu_env *env,
-				   struct llog_handle *handle)
-{
-	struct obd_import *imp;
-	struct ptlrpc_request *req = NULL;
-	struct llogd_body *body;
-	struct llog_log_hdr *hdr;
-	struct llog_rec_hdr *llh_hdr;
-	int rc;
-
-	LLOG_CLIENT_ENTRY(handle->lgh_ctxt, imp);
-	req = ptlrpc_request_alloc_pack(imp, &RQF_LLOG_ORIGIN_HANDLE_READ_HEADER,
-					LUSTRE_LOG_VERSION,
-					LLOG_ORIGIN_HANDLE_READ_HEADER);
-	if (!req) {
-		rc = -ENOMEM;
-		goto err_exit;
-	}
-
-	body = req_capsule_client_get(&req->rq_pill, &RMF_LLOGD_BODY);
-	body->lgd_logid = handle->lgh_id;
-	body->lgd_ctxt_idx = handle->lgh_ctxt->loc_idx - 1;
-	body->lgd_llh_flags = handle->lgh_hdr->llh_flags;
-
-	ptlrpc_request_set_replen(req);
-	rc = ptlrpc_queue_wait(req);
-	if (rc)
-		goto out;
-
-	hdr = req_capsule_server_get(&req->rq_pill, &RMF_LLOG_LOG_HDR);
-	if (!hdr) {
-		rc = -EFAULT;
-		goto out;
-	}
-
-	if (handle->lgh_hdr_size < hdr->llh_hdr.lrh_len) {
-		rc = -EFAULT;
-		goto out;
-	}
-
-	memcpy(handle->lgh_hdr, hdr, hdr->llh_hdr.lrh_len);
-	handle->lgh_last_idx = LLOG_HDR_TAIL(handle->lgh_hdr)->lrt_index;
-
-	/* sanity checks */
-	llh_hdr = &handle->lgh_hdr->llh_hdr;
-	if (llh_hdr->lrh_type != LLOG_HDR_MAGIC) {
-		CERROR("bad log header magic: %#x (expecting %#x)\n",
-		       llh_hdr->lrh_type, LLOG_HDR_MAGIC);
-		rc = -EIO;
-	} else if (llh_hdr->lrh_len !=
-		   LLOG_HDR_TAIL(handle->lgh_hdr)->lrt_len ||
-		   (llh_hdr->lrh_len & (llh_hdr->lrh_len - 1)) ||
-		   llh_hdr->lrh_len < LLOG_MIN_CHUNK_SIZE ||
-		   llh_hdr->lrh_len > handle->lgh_hdr_size) {
-		CERROR("incorrectly sized log header: %#x (expecting %#x) (power of two > 8192)\n",
-		       llh_hdr->lrh_len,
-		       LLOG_HDR_TAIL(handle->lgh_hdr)->lrt_len);
-		CERROR("you may need to re-run lconf --write_conf.\n");
-		rc = -EIO;
-	}
-out:
-	ptlrpc_req_finished(req);
-err_exit:
-	LLOG_CLIENT_EXIT(handle->lgh_ctxt, imp);
-	return rc;
-}
-
-static int llog_client_close(const struct lu_env *env,
-			     struct llog_handle *handle)
-{
-	/* this doesn't call LLOG_ORIGIN_HANDLE_CLOSE because
-	 *  the servers all close the file at the end of every
-	 * other LLOG_ RPC.
-	 */
-	return 0;
-}
-
-struct llog_operations llog_client_ops = {
-	.lop_next_block		= llog_client_next_block,
-	.lop_prev_block		= llog_client_prev_block,
-	.lop_read_header	= llog_client_read_header,
-	.lop_open		= llog_client_open,
-	.lop_close		= llog_client_close,
-};
-EXPORT_SYMBOL(llog_client_ops);