-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
+/*
+ * GPL HEADER START
*
- * Copyright (C) 2001-2003 Cluster File Systems, Inc.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * This file is part of Lustre, http://www.sf.net/projects/lustre/
+ * 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.
*
- * Lustre is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License 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).
*
- * Lustre 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 for more details.
+ * 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
*
- * You should have received a copy of the GNU General Public License
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ *
+ * Copyright (c) 2012, 2017, Intel Corporation.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
*/
-#ifndef EXPORT_SYMTAB
-# define EXPORT_SYMTAB
-#endif
#define DEBUG_SUBSYSTEM S_MDC
-#ifdef __KERNEL__
-# include <linux/config.h>
-# include <linux/module.h>
-# include <linux/kernel.h>
-#else
-# include <liblustre.h>
-#endif
-
-#include <linux/obd_class.h>
-#include <linux/lustre_mds.h>
-#include <linux/lustre_acl.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+
+#include <obd_class.h>
#include "mdc_internal.h"
+#include <lustre_fid.h>
-/* this function actually sends request to desired target. */
-static int mdc_reint(struct ptlrpc_request *request,
- struct mdc_rpc_lock *rpc_lock,
- int level)
+/* mdc_setattr does its own semaphore handling */
+static int mdc_reint(struct ptlrpc_request *request, int level)
{
int rc;
request->rq_send_state = level;
-
- if (rpc_lock)
- mdc_get_rpc_lock(rpc_lock, NULL);
-
- rc = ptlrpc_queue_wait(request);
-
- if (rpc_lock)
- mdc_put_rpc_lock(rpc_lock, NULL);
+
+ 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 (!lustre_swab_repbuf(request, 0, sizeof(struct mds_body),
- lustre_swab_mds_body)) {
- CERROR ("Can't unpack mds_body\n");
+ else if (!req_capsule_server_get(&request->rq_pill, &RMF_MDT_BODY)) {
rc = -EPROTO;
}
return rc;
}
-/* If mdc_setattr is called with an 'iattr', then it is a normal RPC that should
- * take the normal semaphore and go to the normal portal.
- *
- * If it is called with iattr->ia_valid & ATTR_FROM_OPEN, then it is a magic
- * open-path setattr that should take the setattr semaphore and go to the
- * setattr portal. */
-int mdc_setattr(struct obd_export *exp, struct mdc_op_data *data,
- struct iattr *iattr, void *ea, int ealen, void *ea2,
- int ea2len, void *ea3, int ea3len,
- struct ptlrpc_request **request)
+/* 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_res(struct obd_export *exp,
+ struct ldlm_res_id *res_id,
+ struct list_head *cancels,
+ enum ldlm_mode mode, __u64 bits)
{
+ struct ldlm_namespace *ns = exp->exp_obd->obd_namespace;
+ union ldlm_policy_data policy = { { 0 } };
+ struct ldlm_resource *res;
+ int count;
+
+ ENTRY;
+
+ /* 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);
+
+ res = ldlm_resource_get(ns, 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_resource_get_unused(struct obd_export *exp, const struct lu_fid *fid,
+ struct list_head *cancels, enum ldlm_mode mode,
+ __u64 bits)
+{
+ struct ldlm_res_id res_id;
+
+ fid_build_reg_res_name(fid, &res_id);
+ return mdc_resource_get_unused_res(exp, &res_id, cancels, mode, bits);
+}
+
+int mdc_setattr(struct obd_export *exp, struct md_op_data *op_data,
+ void *ea, size_t ealen, struct ptlrpc_request **request)
+{
+ struct list_head cancels = LIST_HEAD_INIT(cancels);
struct ptlrpc_request *req;
- struct mds_rec_setattr *rec;
- struct mdc_rpc_lock *rpc_lock;
- struct obd_device *obd = exp->exp_obd;
- int rc, bufcount = 2, size[5] = {0, sizeof(*rec), ealen, ea2len,
- ea3len};
+ int count = 0, rc;
+ __u64 bits;
ENTRY;
- LASSERT(iattr != NULL);
-
- size[0] = lustre_secdesc_size();
- if (ealen > 0) {
- bufcount++;
- if (ea2len > 0)
- bufcount++;
- if (ea3len > 0)
- bufcount++;
+ LASSERT(op_data != NULL);
+
+ 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 == NULL) {
+ ldlm_lock_list_put(&cancels, l_bl_ast, count);
+ RETURN(-ENOMEM);
}
- req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION,
- MDS_REINT, bufcount, size, NULL);
- if (req == NULL)
- 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);
- lustre_pack_secdesc(req, size[0]);
+ rc = mdc_prep_elc_req(exp, req, MDS_REINT, &cancels, count);
+ if (rc) {
+ ptlrpc_request_free(req);
+ RETURN(rc);
+ }
- if (iattr->ia_valid & ATTR_FROM_OPEN) {
- req->rq_request_portal = MDS_SETATTR_PORTAL; //XXX FIXME bug 249
- rpc_lock = obd->u.cli.cl_setattr_lock;
- } else {
- rpc_lock = obd->u.cli.cl_rpc_lock;
- }
+ if (op_data->op_attr.ia_valid & (ATTR_MTIME | ATTR_CTIME))
+ CDEBUG(D_INODE, "setting mtime %lld, ctime %lld\n",
+ (s64)op_data->op_attr.ia_mtime.tv_sec,
+ (s64)op_data->op_attr.ia_ctime.tv_sec);
+ mdc_setattr_pack(req, op_data, ea, ealen);
- if (iattr->ia_valid & (ATTR_MTIME | ATTR_CTIME))
- CDEBUG(D_INODE, "setting mtime %lu, ctime %lu\n",
- LTIME_S(iattr->ia_mtime), LTIME_S(iattr->ia_ctime));
- mdc_setattr_pack(req->rq_reqmsg, 1, data, iattr, ea, ealen,
- ea2, ea2len, ea3, ea3len);
+ req_capsule_set_size(&req->rq_pill, &RMF_ACL, RCL_SERVER, 0);
- /* prepare the reply buffer
- */
- bufcount = 1;
- size[0] = sizeof(struct mds_body);
-
- /* This is a hack for setfacl remotely. XXX */
- if (ealen == sizeof(XATTR_NAME_LUSTRE_ACL) &&
- !strncmp((char *) ea, XATTR_NAME_LUSTRE_ACL, ealen)) {
- size[bufcount++] = LUSTRE_ACL_SIZE_MAX;
- } else if (iattr->ia_valid & ATTR_SIZE) {
- size[bufcount++] = sizeof(struct lustre_capa);
- }
+ ptlrpc_request_set_replen(req);
- req->rq_replen = lustre_msg_size(bufcount, size);
+ rc = mdc_reint(req, LUSTRE_IMP_FULL);
+ if (rc == -ERESTARTSYS)
+ rc = 0;
- rc = mdc_reint(req, rpc_lock, LUSTRE_IMP_FULL);
*request = req;
- if (rc == -ERESTARTSYS)
- rc = 0;
- RETURN(rc);
+ RETURN(rc);
}
-int mdc_create(struct obd_export *exp, struct mdc_op_data *op_data,
- const void *data, int datalen, int mode, __u32 uid,
- __u32 gid, __u64 rdev, struct ptlrpc_request **request)
+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 obd_device *obd = exp->exp_obd;
struct ptlrpc_request *req;
- int rc, size[4] = {0, sizeof(struct mds_rec_create),
- op_data->namelen + 1};
- int level, bufcount = 3;
+ int level, rc;
+ int count, resends = 0;
+ struct obd_import *import = exp->exp_obd->u.cli.cl_import;
+ int generation = import->imp_generation;
+ struct list_head cancels = LIST_HEAD_INIT(cancels);
ENTRY;
- size[0] = lustre_secdesc_size();
- if (data && datalen) {
- size[bufcount] = datalen;
- bufcount++;
- }
-
- req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION,
- MDS_REINT, bufcount, size, NULL);
- if (req == NULL)
+ /* 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 == NULL) {
+ ldlm_lock_list_put(&cancels, l_bl_ast, count);
RETURN(-ENOMEM);
+ }
- lustre_pack_secdesc(req, size[0]);
+ 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);
+
+ req_capsule_set_size(&req->rq_pill, &RMF_FILE_SECCTX_NAME,
+ RCL_CLIENT, op_data->op_file_secctx_name != NULL ?
+ strlen(op_data->op_file_secctx_name) + 1 : 0);
+
+ req_capsule_set_size(&req->rq_pill, &RMF_FILE_SECCTX, RCL_CLIENT,
+ op_data->op_file_secctx_size);
+
+ /* get SELinux policy info if any */
+ rc = sptlrpc_get_sepol(req);
+ if (rc < 0) {
+ ptlrpc_request_free(req);
+ RETURN(rc);
+ }
+ req_capsule_set_size(&req->rq_pill, &RMF_SELINUX_POL, RCL_CLIENT,
+ strlen(req->rq_sepol) ?
+ strlen(req->rq_sepol) + 1 : 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->rq_reqmsg, 1, op_data, mode, rdev, data, datalen);
+ mdc_create_pack(req, op_data, data, datalen, mode, uid,
+ gid, cap_effective, rdev);
- size[0] = sizeof(struct mds_body);
- req->rq_replen = lustre_msg_size(1, size);
+ 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, obd->u.cli.cl_rpc_lock, level);
+ rc = mdc_reint(req, level);
- /* resend if we were told to. */
+ /* 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 or interrupted. */
+ ptlrpc_req_finished(req);
+ if (generation == import->imp_generation) {
+ if (signal_pending(current))
+ RETURN(-EINTR);
+
+ 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));
+ goto rebuild;
+ } else {
+ CDEBUG(D_HA, "resend cross eviction\n");
+ RETURN(-EIO);
+ }
}
- if (!rc)
- mdc_store_inode_generation(exp, req, MDS_REQ_REC_OFF, 0);
-
*request = req;
RETURN(rc);
}
-int mdc_unlink(struct obd_export *exp, struct mdc_op_data *data,
+int mdc_unlink(struct obd_export *exp, struct md_op_data *op_data,
struct ptlrpc_request **request)
{
+ struct list_head cancels = LIST_HEAD_INIT(cancels);
struct obd_device *obd = class_exp2obd(exp);
struct ptlrpc_request *req = *request;
- int rc, size[4] = {0, sizeof(struct mds_rec_unlink),
- data->namelen + 1,
- obd->u.cli.cl_max_mds_cookiesize};
+ int count = 0, rc;
ENTRY;
- LASSERT(req == NULL);
- size[0] = lustre_secdesc_size();
+ LASSERT(req == NULL);
- req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION,
- MDS_REINT, 4, size, NULL);
- if (req == NULL)
+ 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)))
+ /* don't cancel DoM lock which may cause data flush */
+ count += mdc_resource_get_unused(exp, &op_data->op_fid3,
+ &cancels, LCK_EX,
+ MDS_INODELOCK_ELC);
+ req = ptlrpc_request_alloc(class_exp2cliimp(exp),
+ &RQF_MDS_REINT_UNLINK);
+ if (req == NULL) {
+ ldlm_lock_list_put(&cancels, l_bl_ast, count);
RETURN(-ENOMEM);
+ }
- lustre_pack_secdesc(req, size[0]);
- *request = req;
+ req_capsule_set_size(&req->rq_pill, &RMF_NAME, RCL_CLIENT,
+ op_data->op_namelen + 1);
- size[0] = sizeof(struct mds_body);
- size[1] = obd->u.cli.cl_max_mds_easize;
- size[2] = obd->u.cli.cl_max_mds_cookiesize;
+ /* get SELinux policy info if any */
+ rc = sptlrpc_get_sepol(req);
+ if (rc < 0) {
+ ptlrpc_request_free(req);
+ RETURN(rc);
+ }
+ req_capsule_set_size(&req->rq_pill, &RMF_SELINUX_POL, RCL_CLIENT,
+ strlen(req->rq_sepol) ?
+ strlen(req->rq_sepol) + 1 : 0);
- req->rq_replen = lustre_msg_size(3, size);
+ rc = mdc_prep_elc_req(exp, req, MDS_REINT, &cancels, count);
+ if (rc) {
+ ptlrpc_request_free(req);
+ RETURN(rc);
+ }
- mdc_unlink_pack(req->rq_reqmsg, 1, data);
+ 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, obd->u.cli.cl_rpc_lock, LUSTRE_IMP_FULL);
+ rc = mdc_reint(req, LUSTRE_IMP_FULL);
if (rc == -ERESTARTSYS)
rc = 0;
RETURN(rc);
}
-int mdc_link(struct obd_export *exp, struct mdc_op_data *data,
+int mdc_link(struct obd_export *exp, struct md_op_data *op_data,
struct ptlrpc_request **request)
{
- struct obd_device *obd = exp->exp_obd;
+ struct list_head cancels = LIST_HEAD_INIT(cancels);
struct ptlrpc_request *req;
- int rc, size[3] = {0, sizeof(struct mds_rec_link), data->namelen + 1};
+ int count = 0, rc;
ENTRY;
- size[0] = lustre_secdesc_size();
-
- req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION,
- MDS_REINT, 3, size, NULL);
- if (req == NULL)
+ 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 == NULL) {
+ ldlm_lock_list_put(&cancels, l_bl_ast, count);
RETURN(-ENOMEM);
+ }
- lustre_pack_secdesc(req, size[0]);
-
- mdc_link_pack(req->rq_reqmsg, 1, data);
-
- size[0] = sizeof(struct mds_body);
- req->rq_replen = lustre_msg_size(1, size);
-
- rc = mdc_reint(req, obd->u.cli.cl_rpc_lock, LUSTRE_IMP_FULL);
+ req_capsule_set_size(&req->rq_pill, &RMF_NAME, RCL_CLIENT,
+ op_data->op_namelen + 1);
+
+ /* get SELinux policy info if any */
+ rc = sptlrpc_get_sepol(req);
+ if (rc < 0) {
+ ptlrpc_request_free(req);
+ RETURN(rc);
+ }
+ req_capsule_set_size(&req->rq_pill, &RMF_SELINUX_POL, RCL_CLIENT,
+ strlen(req->rq_sepol) ?
+ strlen(req->rq_sepol) + 1 : 0);
+
+ 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 mdc_op_data *data,
- const char *old, int oldlen, const char *new, int newlen,
- struct ptlrpc_request **request)
+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)
{
- struct obd_device *obd = exp->exp_obd;
- struct ptlrpc_request *req;
- int rc, size[5] = {0, sizeof(struct mds_rec_rename), oldlen + 1,
- newlen + 1, obd->u.cli.cl_max_mds_cookiesize};
- ENTRY;
-
- size[0] = lustre_secdesc_size();
-
- req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION,
- MDS_REINT, 5, size, NULL);
- if (req == NULL)
- RETURN(-ENOMEM);
-
- lustre_pack_secdesc(req, size[0]);
-
- mdc_rename_pack(req->rq_reqmsg, 1, data, old, oldlen, new, newlen);
-
- size[0] = sizeof(struct mds_body);
- size[1] = obd->u.cli.cl_max_mds_easize;
- size[2] = obd->u.cli.cl_max_mds_cookiesize;
- req->rq_replen = lustre_msg_size(3, size);
-
- rc = mdc_reint(req, obd->u.cli.cl_rpc_lock, LUSTRE_IMP_FULL);
- *request = req;
- if (rc == -ERESTARTSYS)
- rc = 0;
+ struct list_head cancels = LIST_HEAD_INIT(cancels);
+ struct obd_device *obd = exp->exp_obd;
+ struct ptlrpc_request *req;
+ int count = 0, rc;
+
+ ENTRY;
+
+ 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_ELC);
+
+ req = ptlrpc_request_alloc(class_exp2cliimp(exp),
+ op_data->op_cli_flags & CLI_MIGRATE ?
+ &RQF_MDS_REINT_MIGRATE : &RQF_MDS_REINT_RENAME);
+ if (req == NULL) {
+ 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);
+ if (op_data->op_cli_flags & CLI_MIGRATE)
+ req_capsule_set_size(&req->rq_pill, &RMF_EADATA, RCL_CLIENT,
+ op_data->op_data_size);
+
+ /* get SELinux policy info if any */
+ rc = sptlrpc_get_sepol(req);
+ if (rc < 0) {
+ ptlrpc_request_free(req);
+ RETURN(rc);
+ }
+ req_capsule_set_size(&req->rq_pill, &RMF_SELINUX_POL, RCL_CLIENT,
+ strlen(req->rq_sepol) ?
+ strlen(req->rq_sepol) + 1 : 0);
+
+ rc = mdc_prep_elc_req(exp, req, MDS_REINT, &cancels, count);
+ if (rc) {
+ ptlrpc_request_free(req);
+ RETURN(rc);
+ }
+
+ if (exp_connect_cancelset(exp) && req)
+ ldlm_cli_cancel_list(&cancels, count, req, 0);
+
+ if (op_data->op_cli_flags & CLI_MIGRATE)
+ mdc_migrate_pack(req, op_data, old, oldlen);
+ else
+ 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);
+}
- RETURN(rc);
+int mdc_file_resync(struct obd_export *exp, struct md_op_data *op_data)
+{
+ struct list_head cancels = LIST_HEAD_INIT(cancels);
+ struct ptlrpc_request *req;
+ struct ldlm_lock *lock;
+ struct mdt_rec_resync *rec;
+ int count = 0, rc;
+ ENTRY;
+
+ 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_LAYOUT);
+
+ req = ptlrpc_request_alloc(class_exp2cliimp(exp),
+ &RQF_MDS_REINT_RESYNC);
+ if (req == NULL) {
+ ldlm_lock_list_put(&cancels, l_bl_ast, count);
+ RETURN(-ENOMEM);
+ }
+
+ rc = mdc_prep_elc_req(exp, req, MDS_REINT, &cancels, count);
+ if (rc) {
+ ptlrpc_request_free(req);
+ RETURN(rc);
+ }
+
+ CLASSERT(sizeof(*rec) == sizeof(struct mdt_rec_reint));
+ rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
+ rec->rs_opcode = REINT_RESYNC;
+ rec->rs_fsuid = op_data->op_fsuid;
+ rec->rs_fsgid = op_data->op_fsgid;
+ rec->rs_cap = op_data->op_cap;
+ rec->rs_fid = op_data->op_fid1;
+ rec->rs_bias = op_data->op_bias;
+ rec->rs_mirror_id = op_data->op_mirror_id;
+
+ lock = ldlm_handle2lock(&op_data->op_lease_handle);
+ if (lock != NULL) {
+ rec->rs_lease_handle = lock->l_remote_handle;
+ LDLM_LOCK_PUT(lock);
+ }
+
+ ptlrpc_request_set_replen(req);
+
+ rc = mdc_reint(req, LUSTRE_IMP_FULL);
+ if (rc == -ERESTARTSYS)
+ rc = 0;
+
+ ptlrpc_req_finished(req);
+ RETURN(rc);
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff