X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Fmdc%2Fmdc_reint.c;h=63bbb0c7863b985f43d4d823778991839569b558;hp=58eb55a9e8f9cb4832f773fb772dee5f1d1c4ba9;hb=d2d56f38da01001c92a09afc6b52b5acbd9bc13c;hpb=06fb20cfda6b2fe1c3b3e909d1448548505d033a diff --git a/lustre/mdc/mdc_reint.c b/lustre/mdc/mdc_reint.c index 58eb55a..63bbb0c 100644 --- a/lustre/mdc/mdc_reint.c +++ b/lustre/mdc/mdc_reint.c @@ -1,197 +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 Lustre, 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. * - * 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. + * 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. * - * 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 - * along with Lustre; 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 - -#include -#include -#include - +#ifndef EXPORT_SYMTAB +# define EXPORT_SYMTAB +#endif #define DEBUG_SUBSYSTEM S_MDC -#include -#include - -static int mdc_reint(struct ptlrpc_client *cl, struct ptlrpc_request *request) +#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; - rc = ptlrpc_queue_wait(cl, request); - rc = ptlrpc_check_status(request, rc); - if (rc) - CERROR("error in handling %d\n", 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; } -int mdc_setattr(struct ptlrpc_client *cl, struct lustre_peer *peer, - struct inode *inode, struct iattr *iattr, +/* 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 mds_rec_setattr *rec; struct ptlrpc_request *req; - int rc, size = sizeof(*rec); + 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; - req = ptlrpc_prep_req(cl, peer, MDS_REINT, 1, &size, NULL); - if (!req) + LASSERT(op_data != NULL); + + size[REQ_REC_OFF + 1] = op_data->op_capa1 ? + sizeof(struct lustre_capa) : 0; + + if (op_data->op_flags & (MF_SOM_CHANGE | MF_EPOCH_OPEN)) + size[REQ_REC_OFF + 2] = sizeof(struct mdt_epoch); + + if (ealen > 0) { + bufcount++; + if (ea2len > 0) + bufcount++; + } + + req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION, + MDS_REINT, bufcount, size, NULL); + if (req == NULL) RETURN(-ENOMEM); - rec = lustre_msg_buf(req->rq_reqmsg, 0); - mds_setattr_pack(rec, inode, iattr); + 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; + } - size = sizeof(struct mds_body); - req->rq_replen = lustre_msg_size(1, &size); + 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(cl, req); + size[REPLY_REC_OFF] = sizeof(struct mdt_body); + size[REPLY_REC_OFF + 1] = sizeof(struct lustre_capa); + ptlrpc_req_set_repsize(req, 3, size); + + rc = mdc_reint(req, rpc_lock, LUSTRE_IMP_FULL); *request = req; + if (rc == -ERESTARTSYS) + rc = 0; RETURN(rc); } -int mdc_create(struct ptlrpc_client *cl, struct lustre_peer *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) { - 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; - int rc, size[3] = {sizeof(*rec), namelen + 1, tgtlen + 1}; - char *tmp; ENTRY; - req = ptlrpc_prep_req(cl, peer, MDS_REINT, 3, size, NULL); - if (!req) - RETURN(-ENOMEM); + /* 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); + } + } - rec = lustre_msg_buf(req->rq_reqmsg, 0); - mds_create_pack(rec, dir, mode, id, uid, gid, time); + size[REQ_REC_OFF + 1] = op_data->op_capa1 ? + sizeof(struct lustre_capa) : 0; + + if (data && datalen) { + size[bufcount] = datalen; + bufcount++; + } - tmp = lustre_msg_buf(req->rq_reqmsg, 1); - LOGL0(name, namelen, tmp); + req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION, + MDS_REINT, bufcount, size, NULL); + if (req == NULL) + RETURN(-ENOMEM); - if (tgt) { - tmp = lustre_msg_buf(req->rq_reqmsg, 2); - LOGL0(tgt, tgtlen, tmp); + /* + * 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; + } + } } - size[0] = sizeof(struct mds_body); - req->rq_replen = lustre_msg_size(1, size); - - rc = mdc_reint(cl, req); *request = req; - RETURN(rc); } -int mdc_unlink(struct ptlrpc_client *cl, struct lustre_peer *peer, - struct inode *dir, struct inode *child, const char *name, - int namelen, struct ptlrpc_request **request) +int mdc_unlink(struct obd_export *exp, struct md_op_data *op_data, + struct ptlrpc_request **request) { - struct mds_rec_unlink *rec; - struct ptlrpc_request *req; - int rc, size[2] = {sizeof(*rec), namelen + 1}; - char *tmp; + 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; - req = ptlrpc_prep_req(cl, peer, MDS_REINT, 2, size, NULL); - if (!req) - RETURN(-ENOMEM); + LASSERT(req == NULL); - rec = lustre_msg_buf(req->rq_reqmsg, 0); - mds_unlink_pack(rec, dir, child); + size[REQ_REC_OFF + 1] = op_data->op_capa1 ? + sizeof(struct lustre_capa) : 0; - tmp = lustre_msg_buf(req->rq_reqmsg, 1); - LOGL0(name, namelen, tmp); + req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION, + MDS_REINT, 4, size, NULL); + if (req == NULL) + RETURN(-ENOMEM); + *request = req; - size[0] = sizeof(struct mds_body); - req->rq_replen = lustre_msg_size(1, size); + 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(cl, req); - *request = req; + mdc_unlink_pack(req, REQ_REC_OFF, op_data); + 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 *cl, struct lustre_peer *peer, - struct dentry *src, struct inode *dir, const char *name, - int namelen, struct ptlrpc_request **request) +int mdc_link(struct obd_export *exp, struct md_op_data *op_data, + struct ptlrpc_request **request) { - struct mds_rec_link *rec; + struct obd_device *obd = exp->exp_obd; struct ptlrpc_request *req; - int rc, size[2] = {sizeof(*rec), namelen + 1}; - char *tmp; + int size[5] = { sizeof(struct ptlrpc_body), + sizeof(struct mdt_rec_link), + 0, 0, op_data->op_namelen + 1 }; + int rc; ENTRY; - req = ptlrpc_prep_req(cl, peer, MDS_REINT, 2, size, NULL); - if (!req) - 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; - rec = lustre_msg_buf(req->rq_reqmsg, 0); - mds_link_pack(rec, src->d_inode, dir); + req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION, + MDS_REINT, 5, size, NULL); + if (req == NULL) + RETURN(-ENOMEM); - tmp = lustre_msg_buf(req->rq_reqmsg, 1); - LOGL0(name, namelen, tmp); + mdc_link_pack(req, REQ_REC_OFF, op_data); - size[0] = sizeof(struct mds_body); - req->rq_replen = lustre_msg_size(1, size); + size[REPLY_REC_OFF] = sizeof(struct mdt_body); + ptlrpc_req_set_repsize(req, 2, size); - rc = mdc_reint(cl, req); + 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 *cl, struct lustre_peer *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) { - struct mds_rec_rename *rec; + struct obd_device *obd = exp->exp_obd; struct ptlrpc_request *req; - int rc, size[3] = {sizeof(*rec), oldlen + 1, newlen + 1}; - char *tmp; + int size[6] = { sizeof(struct ptlrpc_body), + sizeof(struct mdt_rec_rename), + 0, 0, oldlen + 1, newlen + 1 }; + int rc; ENTRY; - req = ptlrpc_prep_req(cl, peer, MDS_REINT, 3, size, NULL); - if (!req) - RETURN(-ENOMEM); - - rec = lustre_msg_buf(req->rq_reqmsg, 0); - mds_rename_pack(rec, src, tgt); + 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; - tmp = lustre_msg_buf(req->rq_reqmsg, 1); - LOGL0(old, oldlen, tmp); + req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_MDS_VERSION, + MDS_REINT, 6, size, NULL); + if (req == NULL) + RETURN(-ENOMEM); - if (tgt) { - tmp = lustre_msg_buf(req->rq_reqmsg, 2); - LOGL0(new, newlen, tmp); - } + mdc_rename_pack(req, REQ_REC_OFF, op_data, old, oldlen, new, newlen); - size[0] = sizeof(struct mds_body); - req->rq_replen = lustre_msg_size(1, size); + 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(cl, req); + rc = mdc_reint(req, obd->u.cli.cl_rpc_lock, LUSTRE_IMP_FULL); *request = req; + if (rc == -ERESTARTSYS) + rc = 0; RETURN(rc); }