1 files changed, 0 insertions, 419 deletions

diff --git a/drivers/staging/lustre/lustre/mdc/mdc_reint.c b/drivers/staging/lustre/lustre/mdc/mdc_reint.c
deleted file mode 100644
index 488b98007558..000000000000
--- a/drivers/staging/lustre/lustre/mdc/mdc_reint.c
+++ /dev/null
@@ -1,419 +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) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2015, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#define DEBUG_SUBSYSTEM S_MDC
-
-# include <linux/module.h>
-# include <linux/kernel.h>
-
-#include <obd_class.h>
-#include "mdc_internal.h"
-#include <lustre_fid.h>
-
-/* mdc_setattr does its own semaphore handling */
-static int mdc_reint(struct ptlrpc_request *request, int level)
-{
-	int rc;
-
-	request->rq_send_state = level;
-
-	mdc_get_mod_rpc_slot(request, NULL);
-	rc = ptlrpc_queue_wait(request);
-	mdc_put_mod_rpc_slot(request, NULL);
-	if (rc)
-		CDEBUG(D_INFO, "error in handling %d\n", rc);
-	else if (!req_capsule_server_get(&request->rq_pill, &RMF_MDT_BODY))
-		rc = -EPROTO;
-
-	return rc;
-}
-
-/* Find and cancel locally locks matched by inode @bits & @mode in the resource
- * found by @fid. Found locks are added into @cancel list. Returns the amount of
- * locks added to @cancels list.
- */
-int mdc_resource_get_unused(struct obd_export *exp, const struct lu_fid *fid,
-			    struct list_head *cancels, enum ldlm_mode mode,
-			    __u64 bits)
-{
-	struct ldlm_namespace *ns = exp->exp_obd->obd_namespace;
-	union ldlm_policy_data policy = {};
-	struct ldlm_res_id res_id;
-	struct ldlm_resource *res;
-	int count;
-
-	/* Return, i.e. cancel nothing, only if ELC is supported (flag in
-	 * export) but disabled through procfs (flag in NS).
-	 *
-	 * This distinguishes from a case when ELC is not supported originally,
-	 * when we still want to cancel locks in advance and just cancel them
-	 * locally, without sending any RPC.
-	 */
-	if (exp_connect_cancelset(exp) && !ns_connect_cancelset(ns))
-		return 0;
-
-	fid_build_reg_res_name(fid, &res_id);
-	res = ldlm_resource_get(exp->exp_obd->obd_namespace,
-				NULL, &res_id, 0, 0);
-	if (IS_ERR(res))
-		return 0;
-	LDLM_RESOURCE_ADDREF(res);
-	/* Initialize ibits lock policy. */
-	policy.l_inodebits.bits = bits;
-	count = ldlm_cancel_resource_local(res, cancels, &policy,
-					   mode, 0, 0, NULL);
-	LDLM_RESOURCE_DELREF(res);
-	ldlm_resource_putref(res);
-	return count;
-}
-
-int mdc_setattr(struct obd_export *exp, struct md_op_data *op_data,
-		void *ea, size_t ealen, struct ptlrpc_request **request)
-{
-	LIST_HEAD(cancels);
-	struct ptlrpc_request *req;
-	int count = 0, rc;
-	__u64 bits;
-
-	bits = MDS_INODELOCK_UPDATE;
-	if (op_data->op_attr.ia_valid & (ATTR_MODE | ATTR_UID | ATTR_GID))
-		bits |= MDS_INODELOCK_LOOKUP;
-	if ((op_data->op_flags & MF_MDC_CANCEL_FID1) &&
-	    (fid_is_sane(&op_data->op_fid1)))
-		count = mdc_resource_get_unused(exp, &op_data->op_fid1,
-						&cancels, LCK_EX, bits);
-	req = ptlrpc_request_alloc(class_exp2cliimp(exp),
-				   &RQF_MDS_REINT_SETATTR);
-	if (!req) {
-		ldlm_lock_list_put(&cancels, l_bl_ast, count);
-		return -ENOMEM;
-	}
-	req_capsule_set_size(&req->rq_pill, &RMF_MDT_EPOCH, RCL_CLIENT, 0);
-	req_capsule_set_size(&req->rq_pill, &RMF_EADATA, RCL_CLIENT, ealen);
-	req_capsule_set_size(&req->rq_pill, &RMF_LOGCOOKIES, RCL_CLIENT, 0);
-
-	rc = mdc_prep_elc_req(exp, req, MDS_REINT, &cancels, count);
-	if (rc) {
-		ptlrpc_request_free(req);
-		return rc;
-	}
-
-	if (op_data->op_attr.ia_valid & (ATTR_MTIME | ATTR_CTIME))
-		CDEBUG(D_INODE, "setting mtime %ld, ctime %ld\n",
-		       LTIME_S(op_data->op_attr.ia_mtime),
-		       LTIME_S(op_data->op_attr.ia_ctime));
-	mdc_setattr_pack(req, op_data, ea, ealen);
-
-	ptlrpc_request_set_replen(req);
-
-	rc = mdc_reint(req, LUSTRE_IMP_FULL);
-
-	if (rc == -ERESTARTSYS)
-		rc = 0;
-
-	*request = req;
-
-	return rc;
-}
-
-int mdc_create(struct obd_export *exp, struct md_op_data *op_data,
-	       const void *data, size_t datalen, umode_t mode,
-	       uid_t uid, gid_t gid, cfs_cap_t cap_effective,
-	       __u64 rdev, struct ptlrpc_request **request)
-{
-	struct ptlrpc_request *req;
-	int level, rc;
-	int count, resends = 0;
-	struct obd_import *import = exp->exp_obd->u.cli.cl_import;
-	int generation = import->imp_generation;
-	LIST_HEAD(cancels);
-
-	/* For case if upper layer did not alloc fid, do it now. */
-	if (!fid_is_sane(&op_data->op_fid2)) {
-		/*
-		 * mdc_fid_alloc() may return errno 1 in case of switch to new
-		 * sequence, handle this.
-		 */
-		rc = mdc_fid_alloc(NULL, exp, &op_data->op_fid2, op_data);
-		if (rc < 0)
-			return rc;
-	}
-
-rebuild:
-	count = 0;
-	if ((op_data->op_flags & MF_MDC_CANCEL_FID1) &&
-	    (fid_is_sane(&op_data->op_fid1)))
-		count = mdc_resource_get_unused(exp, &op_data->op_fid1,
-						&cancels, LCK_EX,
-						MDS_INODELOCK_UPDATE);
-
-	req = ptlrpc_request_alloc(class_exp2cliimp(exp),
-				   &RQF_MDS_REINT_CREATE_ACL);
-	if (!req) {
-		ldlm_lock_list_put(&cancels, l_bl_ast, count);
-		return -ENOMEM;
-	}
-	req_capsule_set_size(&req->rq_pill, &RMF_NAME, RCL_CLIENT,
-			     op_data->op_namelen + 1);
-	req_capsule_set_size(&req->rq_pill, &RMF_EADATA, RCL_CLIENT,
-			     data && datalen ? datalen : 0);
-
-	rc = mdc_prep_elc_req(exp, req, MDS_REINT, &cancels, count);
-	if (rc) {
-		ptlrpc_request_free(req);
-		return rc;
-	}
-
-	/*
-	 * mdc_create_pack() fills msg->bufs[1] with name and msg->bufs[2] with
-	 * tgt, for symlinks or lov MD data.
-	 */
-	mdc_create_pack(req, op_data, data, datalen, mode, uid,
-			gid, cap_effective, rdev);
-
-	ptlrpc_request_set_replen(req);
-
-	/* ask ptlrpc not to resend on EINPROGRESS since we have our own retry
-	 * logic here
-	 */
-	req->rq_no_retry_einprogress = 1;
-
-	if (resends) {
-		req->rq_generation_set = 1;
-		req->rq_import_generation = generation;
-		req->rq_sent = ktime_get_real_seconds() + resends;
-	}
-	level = LUSTRE_IMP_FULL;
- resend:
-	rc = mdc_reint(req, level);
-
-	/* Resend if we were told to. */
-	if (rc == -ERESTARTSYS) {
-		level = LUSTRE_IMP_RECOVER;
-		goto resend;
-	} else if (rc == -EINPROGRESS) {
-		/* Retry create infinitely until succeed or get other
-		 * error code.
-		 */
-		ptlrpc_req_finished(req);
-		resends++;
-
-		CDEBUG(D_HA, "%s: resend:%d create on " DFID "/" DFID "\n",
-		       exp->exp_obd->obd_name, resends,
-		       PFID(&op_data->op_fid1), PFID(&op_data->op_fid2));
-
-		if (generation == import->imp_generation) {
-			goto rebuild;
-		} else {
-			CDEBUG(D_HA, "resend cross eviction\n");
-			return -EIO;
-		}
-	}
-
-	*request = req;
-	return rc;
-}
-
-int mdc_unlink(struct obd_export *exp, struct md_op_data *op_data,
-	       struct ptlrpc_request **request)
-{
-	LIST_HEAD(cancels);
-	struct obd_device *obd = class_exp2obd(exp);
-	struct ptlrpc_request *req = *request;
-	int count = 0, rc;
-
-	LASSERT(!req);
-
-	if ((op_data->op_flags & MF_MDC_CANCEL_FID1) &&
-	    (fid_is_sane(&op_data->op_fid1)))
-		count = mdc_resource_get_unused(exp, &op_data->op_fid1,
-						&cancels, LCK_EX,
-						MDS_INODELOCK_UPDATE);
-	if ((op_data->op_flags & MF_MDC_CANCEL_FID3) &&
-	    (fid_is_sane(&op_data->op_fid3)))
-		count += mdc_resource_get_unused(exp, &op_data->op_fid3,
-						 &cancels, LCK_EX,
-						 MDS_INODELOCK_FULL);
-	req = ptlrpc_request_alloc(class_exp2cliimp(exp),
-				   &RQF_MDS_REINT_UNLINK);
-	if (!req) {
-		ldlm_lock_list_put(&cancels, l_bl_ast, count);
-		return -ENOMEM;
-	}
-	req_capsule_set_size(&req->rq_pill, &RMF_NAME, RCL_CLIENT,
-			     op_data->op_namelen + 1);
-
-	rc = mdc_prep_elc_req(exp, req, MDS_REINT, &cancels, count);
-	if (rc) {
-		ptlrpc_request_free(req);
-		return rc;
-	}
-
-	mdc_unlink_pack(req, op_data);
-
-	req_capsule_set_size(&req->rq_pill, &RMF_MDT_MD, RCL_SERVER,
-			     obd->u.cli.cl_default_mds_easize);
-	ptlrpc_request_set_replen(req);
-
-	*request = req;
-
-	rc = mdc_reint(req, LUSTRE_IMP_FULL);
-	if (rc == -ERESTARTSYS)
-		rc = 0;
-	return rc;
-}
-
-int mdc_link(struct obd_export *exp, struct md_op_data *op_data,
-	     struct ptlrpc_request **request)
-{
-	LIST_HEAD(cancels);
-	struct ptlrpc_request *req;
-	int count = 0, rc;
-
-	if ((op_data->op_flags & MF_MDC_CANCEL_FID2) &&
-	    (fid_is_sane(&op_data->op_fid2)))
-		count = mdc_resource_get_unused(exp, &op_data->op_fid2,
-						&cancels, LCK_EX,
-						MDS_INODELOCK_UPDATE);
-	if ((op_data->op_flags & MF_MDC_CANCEL_FID1) &&
-	    (fid_is_sane(&op_data->op_fid1)))
-		count += mdc_resource_get_unused(exp, &op_data->op_fid1,
-						 &cancels, LCK_EX,
-						 MDS_INODELOCK_UPDATE);
-
-	req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_REINT_LINK);
-	if (!req) {
-		ldlm_lock_list_put(&cancels, l_bl_ast, count);
-		return -ENOMEM;
-	}
-	req_capsule_set_size(&req->rq_pill, &RMF_NAME, RCL_CLIENT,
-			     op_data->op_namelen + 1);
-
-	rc = mdc_prep_elc_req(exp, req, MDS_REINT, &cancels, count);
-	if (rc) {
-		ptlrpc_request_free(req);
-		return rc;
-	}
-
-	mdc_link_pack(req, op_data);
-	ptlrpc_request_set_replen(req);
-
-	rc = mdc_reint(req, LUSTRE_IMP_FULL);
-	*request = req;
-	if (rc == -ERESTARTSYS)
-		rc = 0;
-
-	return rc;
-}
-
-int mdc_rename(struct obd_export *exp, struct md_op_data *op_data,
-	       const char *old, size_t oldlen, const char *new, size_t newlen,
-	       struct ptlrpc_request **request)
-{
-	LIST_HEAD(cancels);
-	struct obd_device *obd = exp->exp_obd;
-	struct ptlrpc_request *req;
-	int count = 0, rc;
-
-	if ((op_data->op_flags & MF_MDC_CANCEL_FID1) &&
-	    (fid_is_sane(&op_data->op_fid1)))
-		count = mdc_resource_get_unused(exp, &op_data->op_fid1,
-						&cancels, LCK_EX,
-						MDS_INODELOCK_UPDATE);
-	if ((op_data->op_flags & MF_MDC_CANCEL_FID2) &&
-	    (fid_is_sane(&op_data->op_fid2)))
-		count += mdc_resource_get_unused(exp, &op_data->op_fid2,
-						 &cancels, LCK_EX,
-						 MDS_INODELOCK_UPDATE);
-	if ((op_data->op_flags & MF_MDC_CANCEL_FID3) &&
-	    (fid_is_sane(&op_data->op_fid3)))
-		count += mdc_resource_get_unused(exp, &op_data->op_fid3,
-						 &cancels, LCK_EX,
-						 MDS_INODELOCK_LOOKUP);
-	if ((op_data->op_flags & MF_MDC_CANCEL_FID4) &&
-	    (fid_is_sane(&op_data->op_fid4)))
-		count += mdc_resource_get_unused(exp, &op_data->op_fid4,
-						 &cancels, LCK_EX,
-						 MDS_INODELOCK_FULL);
-
-	req = ptlrpc_request_alloc(class_exp2cliimp(exp),
-				   op_data->op_cli_flags & CLI_MIGRATE ?
-				   &RQF_MDS_REINT_MIGRATE : &RQF_MDS_REINT_RENAME);
-	if (!req) {
-		ldlm_lock_list_put(&cancels, l_bl_ast, count);
-		return -ENOMEM;
-	}
-
-	req_capsule_set_size(&req->rq_pill, &RMF_NAME, RCL_CLIENT, oldlen + 1);
-	req_capsule_set_size(&req->rq_pill, &RMF_SYMTGT, RCL_CLIENT,
-			     newlen + 1);
-
-	rc = mdc_prep_elc_req(exp, req, MDS_REINT, &cancels, count);
-	if (rc) {
-		ptlrpc_request_free(req);
-		return rc;
-	}
-
-	if (op_data->op_cli_flags & CLI_MIGRATE && op_data->op_data) {
-		struct md_open_data *mod = op_data->op_data;
-
-		LASSERTF(mod->mod_open_req &&
-			 mod->mod_open_req->rq_type != LI_POISON,
-			 "POISONED open %p!\n", mod->mod_open_req);
-
-		DEBUG_REQ(D_HA, mod->mod_open_req, "matched open");
-		/*
-		 * We no longer want to preserve this open for replay even
-		 * though the open was committed. b=3632, b=3633
-		 */
-		spin_lock(&mod->mod_open_req->rq_lock);
-		mod->mod_open_req->rq_replay = 0;
-		spin_unlock(&mod->mod_open_req->rq_lock);
-	}
-
-	if (exp_connect_cancelset(exp) && req)
-		ldlm_cli_cancel_list(&cancels, count, req, 0);
-
-	mdc_rename_pack(req, op_data, old, oldlen, new, newlen);
-
-	req_capsule_set_size(&req->rq_pill, &RMF_MDT_MD, RCL_SERVER,
-			     obd->u.cli.cl_default_mds_easize);
-	ptlrpc_request_set_replen(req);
-
-	rc = mdc_reint(req, LUSTRE_IMP_FULL);
-	*request = req;
-	if (rc == -ERESTARTSYS)
-		rc = 0;
-
-	return rc;
-}