示例#1
0
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 mdc_rpc_lock *rpc_lock;
        struct obd_device *obd = exp->exp_obd;
        int count = 0, rc;
        __u64 bits;
        ENTRY;

        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);
        }
        mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
	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);
	}

        rpc_lock = obd->u.cli.cl_rpc_lock;

        if (op_data->op_attr.ia_valid & (ATTR_MTIME | ATTR_CTIME))
                CDEBUG(D_INODE, "setting mtime "CFS_TIME_T
                       ", ctime "CFS_TIME_T"\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, rpc_lock, LUSTRE_IMP_FULL);
	if (rc == -ERESTARTSYS)
                rc = 0;

        *request = req;

	RETURN(rc);
}
示例#2
0
int mdc_link(struct obd_export *exp, struct md_op_data *op_data,
             struct ptlrpc_request **request)
{
	struct list_head cancels = LIST_HEAD_INIT(cancels);
        struct ptlrpc_request *req;
        int count = 0, rc;
        ENTRY;

        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);
        }

        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);
}
示例#3
0
int mdc_unlink(struct obd_export *exp, struct md_op_data *op_data,
               struct ptlrpc_request **request)
{
        CFS_LIST_HEAD(cancels);
        struct obd_device *obd = class_exp2obd(exp);
        struct ptlrpc_request *req = *request;
        int count = 0, rc;
        ENTRY;

        LASSERT(req == NULL);

	if ((op_data->op_flags & MF_MDC_CANCEL_FID1) &&
	    (fid_is_sane(&op_data->op_fid1)) &&
	    !OBD_FAIL_CHECK(OBD_FAIL_LDLM_BL_CALLBACK_NET))
		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)) &&
	    !OBD_FAIL_CHECK(OBD_FAIL_LDLM_BL_CALLBACK_NET))
		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 == NULL) {
                ldlm_lock_list_put(&cancels, l_bl_ast, count);
                RETURN(-ENOMEM);
        }
        mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
        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_max_mds_easize);
        req_capsule_set_size(&req->rq_pill, &RMF_LOGCOOKIES, RCL_SERVER,
                             obd->u.cli.cl_max_mds_cookiesize);
        ptlrpc_request_set_replen(req);

        *request = req;

        rc = mdc_reint(req, obd->u.cli.cl_rpc_lock, LUSTRE_IMP_FULL);
        if (rc == -ERESTARTSYS)
                rc = 0;
        RETURN(rc);
}
示例#4
0
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;
}
示例#5
0
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;
}
示例#6
0
文件: mdc_reint.c 项目: DCteam/lustre
int mdc_link(struct obd_export *exp, struct md_op_data *op_data,
             struct ptlrpc_request **request)
{
        CFS_LIST_HEAD(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_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);
        }
        mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
        mdc_set_capa_size(req, &RMF_CAPA2, op_data->op_capa2);
        req_capsule_set_size(&req->rq_pill, &RMF_NAME, RCL_CLIENT,
                             op_data->op_namelen + 1);

        rc = mdc_prep_elc_req(exp, req, &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, obd->u.cli.cl_rpc_lock, LUSTRE_IMP_FULL);
        *request = req;
        if (rc == -ERESTARTSYS)
                rc = 0;

        RETURN(rc);
}
示例#7
0
文件: mdc_reint.c 项目: DCteam/lustre
int mdc_create(struct obd_export *exp, struct md_op_data *op_data,
               const void *data, int datalen, int mode, __u32 uid, __u32 gid,
               cfs_cap_t cap_effective, __u64 rdev,
               struct ptlrpc_request **request)
{
        struct ptlrpc_request *req;
        int level, rc;
        int count = 0;
        CFS_LIST_HEAD(cancels);
        ENTRY;

        /* 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(exp, &op_data->op_fid2, op_data);
                if (rc < 0) {
                        CERROR("Can't alloc new fid, rc %d\n", rc);
                        RETURN(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);

        req = ptlrpc_request_alloc(class_exp2cliimp(exp),
                                   &RQF_MDS_REINT_CREATE_RMT_ACL);
        if (req == NULL) {
                ldlm_lock_list_put(&cancels, l_bl_ast, count);
                RETURN(-ENOMEM);
        }
        mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
        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, &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);

        level = LUSTRE_IMP_FULL;
 resend:
        rc = mdc_reint(req, exp->exp_obd->u.cli.cl_rpc_lock, level);

        /* Resend if we were told to. */
        if (rc == -ERESTARTSYS) {
                level = LUSTRE_IMP_RECOVER;
                goto resend;
        } else if (rc == 0) {
                struct mdt_body *body;
                struct lustre_capa *capa;

                body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
                LASSERT(body);
                if (body->valid & OBD_MD_FLMDSCAPA) {
                        capa = req_capsule_server_get(&req->rq_pill,
                                                      &RMF_CAPA1);
                        if (capa == NULL)
                                rc = -EPROTO;
                }
        }

        *request = req;
        RETURN(rc);
}
示例#8
0
文件: mdc_reint.c 项目: DCteam/lustre
/* 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 md_op_data *op_data,
                void *ea, int ealen, void *ea2, int ea2len,
                struct ptlrpc_request **request, struct md_open_data **mod)
{
        CFS_LIST_HEAD(cancels);
        struct ptlrpc_request *req;
        struct mdc_rpc_lock *rpc_lock;
        struct obd_device *obd = exp->exp_obd;
        int count = 0, rc;
        __u64 bits;
        ENTRY;

        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);
        }
        mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
        if ((op_data->op_flags & (MF_SOM_CHANGE | MF_EPOCH_OPEN)) == 0)
                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,
                             ea2len);

        rc = mdc_prep_elc_req(exp, req, &cancels, count);
        if (rc) {
                ptlrpc_request_free(req);
                RETURN(rc);
        }

        if (op_data->op_attr.ia_valid & ATTR_FROM_OPEN) {
                req->rq_request_portal = MDS_SETATTR_PORTAL;
                ptlrpc_at_set_req_timeout(req);
                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 "CFS_TIME_T
                       ", ctime "CFS_TIME_T"\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, ea2, ea2len);

        ptlrpc_request_set_replen(req);
        if (mod && (op_data->op_flags & MF_EPOCH_OPEN) &&
            req->rq_import->imp_replayable)
        {
                LASSERT(*mod == NULL);

                *mod = obd_mod_alloc();
                if (*mod == NULL) {
                        DEBUG_REQ(D_ERROR, req, "Can't allocate "
                                  "md_open_data");
                } else {
                        req->rq_replay = 1;
                        req->rq_cb_data = *mod;
                        (*mod)->mod_open_req = req;
                        req->rq_commit_cb = mdc_commit_open;
                        /**
                         * Take an extra reference on \var mod, it protects \var
                         * mod from being freed on eviction (commit callback is
                         * called despite rq_replay flag).
                         * Will be put on mdc_done_writing().
                         */
                        obd_mod_get(*mod);
                }
        }

        rc = mdc_reint(req, rpc_lock, LUSTRE_IMP_FULL);

        /* Save the obtained info in the original RPC for the replay case. */
        if (rc == 0 && (op_data->op_flags & MF_EPOCH_OPEN)) {
                struct mdt_ioepoch *epoch;
                struct mdt_body  *body;

                epoch = req_capsule_client_get(&req->rq_pill, &RMF_MDT_EPOCH);
                body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
                LASSERT(epoch != NULL);
                LASSERT(body != NULL);
                epoch->handle = body->handle;
                epoch->ioepoch = body->ioepoch;
                req->rq_replay_cb = mdc_replay_open;
        /** bug 3633, open may be committed and estale answer is not error */
        } else if (rc == -ESTALE && (op_data->op_flags & MF_SOM_CHANGE)) {
                rc = 0;
        } else if (rc == -ERESTARTSYS) {
                rc = 0;
        }
        *request = req;
        if (rc && req->rq_commit_cb) {
                /* Put an extra reference on \var mod on error case. */
                obd_mod_put(*mod);
                req->rq_commit_cb(req);
        }
        RETURN(rc);
}
示例#9
0
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;
	struct list_head cancels = LIST_HEAD_INIT(cancels);
        ENTRY;

	/* 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);
        }

        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, 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 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);
                }
        }

        *request = req;
        RETURN(rc);
}
示例#10
0
int mdc_create(struct obd_export *exp, struct md_op_data *op_data,
               const void *data, int datalen, int mode, __u32 uid, __u32 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;
        CFS_LIST_HEAD(cancels);
        ENTRY;

        /* 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(exp, &op_data->op_fid2, op_data);
                if (rc < 0) {
                        CERROR("Can't alloc new fid, rc %d\n", rc);
                        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_RMT_ACL);
        if (req == NULL) {
                ldlm_lock_list_put(&cancels, l_bl_ast, count);
                RETURN(-ENOMEM);
        }
        mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
        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 = cfs_time_current_sec() + resends;
        }
        level = LUSTRE_IMP_FULL;
 resend:
        rc = mdc_reint(req, exp->exp_obd->u.cli.cl_rpc_lock, 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);
                }
        } else if (rc == 0) {
                struct mdt_body *body;
                struct lustre_capa *capa;

                body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
                LASSERT(body);
                if (body->valid & OBD_MD_FLMDSCAPA) {
                        capa = req_capsule_server_get(&req->rq_pill,
                                                      &RMF_CAPA1);
                        if (capa == NULL)
                                rc = -EPROTO;
                }
        }

        *request = req;
        RETURN(rc);
}