X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Fmdc%2Fmdc_reint.c;h=63bbb0c7863b985f43d4d823778991839569b558;hp=9249d890646b4a22a71b21342c9f45e1816d47c0;hb=d2d56f38da01001c92a09afc6b52b5acbd9bc13c;hpb=3293f5b9676e5336d92950f7210823c54c36c784 diff --git a/lustre/mdc/mdc_reint.c b/lustre/mdc/mdc_reint.c index 9249d89..63bbb0c 100644 --- a/lustre/mdc/mdc_reint.c +++ b/lustre/mdc/mdc_reint.c @@ -1,191 +1,310 @@ /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*- * vim:expandtab:shiftwidth=8:tabstop=8: * - * Copyright (C) 2001, 2002 Cluster File Systems, Inc. + * Copyright (C) 2001-2003 Cluster File Systems, Inc. * - * This file is part of Portals, http://www.sf.net/projects/lustre/ + * This file is part of the Lustre file system, http://www.lustre.org + * Lustre is a trademark of Cluster File Systems, Inc. * - * Portals 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. + * You may have signed or agreed to another license before downloading + * this software. If so, you are bound by the terms and conditions + * of that agreement, and the following does not apply to you. See the + * LICENSE file included with this distribution for more information. * - * Portals 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 - * along with Portals; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * If you did not agree to a different license, then this copy of Lustre + * is open source 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. * + * In either case, 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 + * license text for more details. */ -#define EXPORT_SYMTAB +#ifndef EXPORT_SYMTAB +# define EXPORT_SYMTAB +#endif +#define DEBUG_SUBSYSTEM S_MDC -#include -#include -#include -#include -#include -#include -#include -#include -#include +#ifdef __KERNEL__ +#ifdef HAVE_KERNEL_CONFIG_H +# include +#endif +# include +# include +#else +# include +#endif + +#include +#include "mdc_internal.h" + +/* mdc_setattr does its own semaphore handling */ +static int mdc_reint(struct ptlrpc_request *request, + struct mdc_rpc_lock *rpc_lock, int level) +{ + int rc; + + request->rq_send_state = level; + + mdc_get_rpc_lock(rpc_lock, NULL); + rc = ptlrpc_queue_wait(request); + mdc_put_rpc_lock(rpc_lock, NULL); + if (rc) + CDEBUG(D_INFO, "error in handling %d\n", rc); + else if (!lustre_swab_repbuf(request, REPLY_REC_OFF, + sizeof(struct mdt_body), + lustre_swab_mdt_body)) { + CERROR ("Can't unpack mdt_body\n"); + rc = -EPROTO; + } + return rc; +} -#include -#include -#include +/* 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 ptlrpc_request *req; + struct mdt_rec_setattr *rec; + struct mdc_rpc_lock *rpc_lock; + struct obd_device *obd = exp->exp_obd; + int size[6] = { sizeof(struct ptlrpc_body), + sizeof(*rec), 0, 0, ealen, ea2len }; + int bufcount = 4, rc; + ENTRY; -#include -#include -#include -#include -#include + LASSERT(op_data != NULL); -#define DEBUG_SUBSYSTEM S_MDC + size[REQ_REC_OFF + 1] = op_data->op_capa1 ? + sizeof(struct lustre_capa) : 0; -#include -#include -#include -#include -#include + if (op_data->op_flags & (MF_SOM_CHANGE | MF_EPOCH_OPEN)) + size[REQ_REC_OFF + 2] = sizeof(struct mdt_epoch); -extern int mdc_reint(struct ptlrpc_client *peer, struct ptlrpc_request *request); + if (ealen > 0) { + bufcount++; + if (ea2len > 0) + bufcount++; + } -int mdc_setattr(struct ptlrpc_client *peer, - struct inode *inode, struct iattr *iattr, - struct ptlrpc_request **request) -{ - int rc; - struct mds_rec_setattr *rec; - ENTRY; + req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION, + MDS_REINT, bufcount, size, NULL); + if (req == NULL) + RETURN(-ENOMEM); - *request = ptlrpc_prep_req(peer, MDS_REINT, 0, NULL, sizeof(*rec), NULL); - if (!(*request)) { - CERROR("mdc request: cannot pack\n"); - return -ENOMEM; - } + if (op_data->op_attr.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; + } - rec = mds_req_tgt((*request)->rq_req.mds); - mds_setattr_pack(rec, inode, iattr); - (*request)->rq_req.mds->opcode = HTON__u32(REINT_SETATTR); - (*request)->rq_replen = - sizeof(struct ptlrep_hdr) + sizeof(struct mds_rep); + if (op_data->op_attr.ia_valid & (ATTR_MTIME | ATTR_CTIME)) + CDEBUG(D_INODE, "setting mtime %lu, ctime %lu\n", + LTIME_S(op_data->op_attr.ia_mtime), + LTIME_S(op_data->op_attr.ia_ctime)); + mdc_setattr_pack(req, REQ_REC_OFF, op_data, ea, ealen, ea2, ea2len); - rc = mdc_reint(peer, *request); + size[REPLY_REC_OFF] = sizeof(struct mdt_body); + size[REPLY_REC_OFF + 1] = sizeof(struct lustre_capa); + ptlrpc_req_set_repsize(req, 3, size); - EXIT; - return rc; + rc = mdc_reint(req, rpc_lock, LUSTRE_IMP_FULL); + *request = req; + if (rc == -ERESTARTSYS) + rc = 0; + + RETURN(rc); } -int mdc_create(struct ptlrpc_client *peer, - struct inode *dir, const char *name, int namelen, - const char *tgt, int tgtlen, - int mode, __u64 id, __u32 uid, __u32 gid, __u64 time, - struct ptlrpc_request **request) +int mdc_create(struct obd_export *exp, struct md_op_data *op_data, + const void *data, int datalen, int mode, __u32 uid, __u32 gid, + __u32 cap_effective, __u64 rdev, struct ptlrpc_request **request) { - int rc; - struct mds_rec_create *rec; + int size[5] = { sizeof(struct ptlrpc_body), + sizeof(struct mdt_rec_create), + 0, op_data->op_namelen + 1 }; + struct obd_device *obd = exp->exp_obd; + int level, bufcount = 4, rc; + struct ptlrpc_request *req; ENTRY; - (*request) = ptlrpc_prep_req(peer, MDS_REINT, 0, NULL, - sizeof(*rec) + size_round0(namelen) + - size_round0(tgtlen), NULL); - if (!(*request)) { - CERROR("mdc_create: cannot pack\n"); - return -ENOMEM; - } - - (*request)->rq_replen = - sizeof(struct ptlrep_hdr) + sizeof(struct mds_rep); - - rec = mds_req_tgt((*request)->rq_req.mds); - mds_create_pack(rec, dir, name, namelen, mode, id, uid, gid, time, - tgt, tgtlen); - - rc = mdc_reint(peer, (*request)); - - EXIT; - return rc; + /* 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); + } + } + + size[REQ_REC_OFF + 1] = op_data->op_capa1 ? + sizeof(struct lustre_capa) : 0; + + 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) + RETURN(-ENOMEM); + + /* + * 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, REQ_REC_OFF, op_data, data, datalen, mode, uid, + gid, cap_effective, rdev); + + size[REPLY_REC_OFF] = sizeof(struct mdt_body); + size[REPLY_REC_OFF + 1] = sizeof(struct lustre_capa); + ptlrpc_req_set_repsize(req, 3, size); + + level = LUSTRE_IMP_FULL; + resend: + rc = mdc_reint(req, 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 = lustre_msg_buf(req->rq_repmsg, REPLY_REC_OFF, + sizeof(*body)); + LASSERT(body); + if (body->valid & OBD_MD_FLMDSCAPA) { + capa = lustre_unpack_capa(req->rq_repmsg, + REPLY_REC_OFF + 1); + if (capa == NULL) { + CERROR("Missing/short MDS capability\n"); + rc = -EPROTO; + } + } + } + + *request = req; + RETURN(rc); } -int mdc_unlink(struct ptlrpc_client *peer, - struct inode *dir, const char *name, int namelen, +int mdc_unlink(struct obd_export *exp, struct md_op_data *op_data, struct ptlrpc_request **request) { - int rc; - struct mds_rec_unlink *rec; + struct obd_device *obd = class_exp2obd(exp); + struct ptlrpc_request *req = *request; + int size[4] = { sizeof(struct ptlrpc_body), + sizeof(struct mdt_rec_unlink), + 0, op_data->op_namelen + 1 }; + int rc; + ENTRY; + + LASSERT(req == NULL); - (*request) = ptlrpc_prep_req(peer, MDS_REINT, 0, NULL, - sizeof(*rec) + size_round0(namelen), NULL); - if (!(*request)) { - CERROR("mdc_unlink: cannot pack\n"); - return -ENOMEM; - } + size[REQ_REC_OFF + 1] = op_data->op_capa1 ? + sizeof(struct lustre_capa) : 0; - (*request)->rq_replen = - sizeof(struct ptlrep_hdr) + sizeof(struct mds_rep); + req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION, + MDS_REINT, 4, size, NULL); + if (req == NULL) + RETURN(-ENOMEM); + *request = req; - rec = mds_req_tgt((*request)->rq_req.mds); - mds_unlink_pack(rec, dir, name, namelen); + size[REPLY_REC_OFF] = sizeof(struct mdt_body); + size[REPLY_REC_OFF + 1] = obd->u.cli.cl_max_mds_easize; + size[REPLY_REC_OFF + 2] = obd->u.cli.cl_max_mds_cookiesize; + ptlrpc_req_set_repsize(req, 4, size); - rc = mdc_reint(peer, (*request)); + mdc_unlink_pack(req, REQ_REC_OFF, op_data); - EXIT; - return rc; + rc = mdc_reint(req, obd->u.cli.cl_rpc_lock, LUSTRE_IMP_FULL); + if (rc == -ERESTARTSYS) + rc = 0; + RETURN(rc); } -int mdc_link(struct ptlrpc_client *peer, struct dentry *src, - struct inode *dir, const char *name, int namelen, +int mdc_link(struct obd_export *exp, struct md_op_data *op_data, struct ptlrpc_request **request) { - int rc; - struct mds_rec_link *rec; + struct obd_device *obd = exp->exp_obd; + struct ptlrpc_request *req; + int size[5] = { sizeof(struct ptlrpc_body), + sizeof(struct mdt_rec_link), + 0, 0, op_data->op_namelen + 1 }; + int rc; ENTRY; - (*request) = ptlrpc_prep_req(peer, MDS_REINT, 0, NULL, - sizeof(*rec) + size_round0(namelen), NULL); - if (!(*request)) { - CERROR("mdc_link: cannot pack\n"); - return -ENOMEM; - } + size[REQ_REC_OFF + 1] = op_data->op_capa1 ? + sizeof(struct lustre_capa) : 0; + size[REQ_REC_OFF + 2] = op_data->op_capa2 ? + sizeof(struct lustre_capa) : 0; + + req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION, + MDS_REINT, 5, size, NULL); + if (req == NULL) + RETURN(-ENOMEM); - (*request)->rq_replen = - sizeof(struct ptlrep_hdr) + sizeof(struct mds_rep); + mdc_link_pack(req, REQ_REC_OFF, op_data); - rec = mds_req_tgt((*request)->rq_req.mds); - mds_link_pack(rec, src->d_inode, dir, name, namelen); + size[REPLY_REC_OFF] = sizeof(struct mdt_body); + ptlrpc_req_set_repsize(req, 2, size); - rc = mdc_reint(peer, (*request)); - EXIT; - return rc; + rc = mdc_reint(req, obd->u.cli.cl_rpc_lock, LUSTRE_IMP_FULL); + *request = req; + if (rc == -ERESTARTSYS) + rc = 0; + + RETURN(rc); } -int mdc_rename(struct ptlrpc_client *peer, struct inode *src, - struct inode *tgt, const char *old, int oldlen, - const char *new, int newlen, +int mdc_rename(struct obd_export *exp, struct md_op_data *op_data, + const char *old, int oldlen, const char *new, int newlen, struct ptlrpc_request **request) { - int rc; - struct mds_rec_rename *rec; + struct obd_device *obd = exp->exp_obd; + struct ptlrpc_request *req; + int size[6] = { sizeof(struct ptlrpc_body), + sizeof(struct mdt_rec_rename), + 0, 0, oldlen + 1, newlen + 1 }; + int rc; ENTRY; - (*request) = ptlrpc_prep_req(peer, MDS_REINT, 0, NULL, - sizeof(*rec) + size_round0(oldlen) - + size_round0(newlen), NULL); - if (!(*request)) { - CERROR("mdc_link: cannot pack\n"); - return -ENOMEM; - } + size[REQ_REC_OFF + 1] = op_data->op_capa1 ? + sizeof(struct lustre_capa) : 0; + size[REQ_REC_OFF + 2] = op_data->op_capa2 ? + sizeof(struct lustre_capa) : 0; + + req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION, + MDS_REINT, 6, size, NULL); + if (req == NULL) + RETURN(-ENOMEM); - (*request)->rq_replen = - sizeof(struct ptlrep_hdr) + sizeof(struct mds_rep); + mdc_rename_pack(req, REQ_REC_OFF, op_data, old, oldlen, new, newlen); - rec = mds_req_tgt((*request)->rq_req.mds); - mds_rename_pack(rec, src, tgt, old, oldlen, new, newlen); + size[REPLY_REC_OFF] = sizeof(struct mdt_body); + size[REPLY_REC_OFF + 1] = obd->u.cli.cl_max_mds_easize; + size[REPLY_REC_OFF + 2] = obd->u.cli.cl_max_mds_cookiesize; + ptlrpc_req_set_repsize(req, 4, size); - rc = mdc_reint(peer, (*request)); + rc = mdc_reint(req, obd->u.cli.cl_rpc_lock, LUSTRE_IMP_FULL); + *request = req; + if (rc == -ERESTARTSYS) + rc = 0; - EXIT; - return rc; + RETURN(rc); }