X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lustre%2Fmdc%2Fmdc_reint.c;h=d09227029db1d6c815f2323acd6343d3104cb392;hb=363a4d1ecce3145878170e9f80b9302f1d010a37;hp=181b8fa14c08aaac06a3581034d83c8ea1374342;hpb=6448914cb7fe16217a2368748e0d7fa008486520;p=fs%2Flustre-release.git diff --git a/lustre/mdc/mdc_reint.c b/lustre/mdc/mdc_reint.c index 181b8fa..d092270 100644 --- a/lustre/mdc/mdc_reint.c +++ b/lustre/mdc/mdc_reint.c @@ -1,183 +1,238 @@ /* -*- 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 Lustre, http://www.sf.net/projects/lustre/ * - * Portals is free software; you can redistribute it and/or + * 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. * - * Portals is distributed in the hope that it will be useful, + * 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 Portals; if not, write to the Free Software + * along with Lustre; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * */ -#define EXPORT_SYMTAB - -#include -#include -#include - +#ifndef EXPORT_SYMTAB +# define EXPORT_SYMTAB +#endif #define DEBUG_SUBSYSTEM S_MDC +#ifdef __KERNEL__ +# include +# include +# include +#else +# include +#endif + #include #include +#include "mdc_internal.h" -static int mdc_reint(struct ptlrpc_client *cl, struct ptlrpc_request *request) +/* 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; + int rc; + - rc = ptlrpc_queue_wait(cl, request); - if (rc) - CERROR("error in handling %d\n", rc); + request->rq_send_state = level; - return rc; + 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, 0, sizeof(struct mds_body), + lustre_swab_mds_body)) { + CERROR ("Can't unpack mds_body\n"); + rc = -EPROTO; + } + return rc; } -int mdc_setattr(struct ptlrpc_client *peer, - struct inode *inode, struct iattr *iattr, - struct ptlrpc_request **request) +/* 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, + struct ptlrpc_request **request) { - int rc; - struct mds_rec_setattr *rec; + 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 = 1, size[3] = {sizeof(*rec), ealen, ea2len}; ENTRY; - *request = ptlrpc_prep_req(peer, MDS_REINT, 0, NULL, - sizeof(*rec), NULL); - if (!(*request)) { - CERROR("cannot pack\n"); - EXIT; - return -ENOMEM; - } + LASSERT(iattr != NULL); - 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 (ealen > 0) { + bufcount = 2; + if (ea2len > 0) + bufcount = 3; + } - rc = mdc_reint(peer, *request); + req = ptlrpc_prep_req(class_exp2cliimp(exp), MDS_REINT, bufcount, + size, NULL); + if (req == NULL) + RETURN(-ENOMEM); - EXIT; - 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; + } -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 rc; - struct mds_rec_create *rec; - ENTRY; + 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, data, iattr, ea, ealen, ea2, ea2len); - (*request) = ptlrpc_prep_req(peer, MDS_REINT, 0, NULL, - sizeof(*rec) + size_round0(namelen) + - size_round0(tgtlen), NULL); - if (!(*request)) { - CERROR("cannot pack\n"); - return -ENOMEM; - } + size[0] = sizeof(struct mds_body); + req->rq_replen = lustre_msg_size(1, size); - (*request)->rq_replen = - sizeof(struct ptlrep_hdr) + sizeof(struct mds_rep); + rc = mdc_reint(req, rpc_lock, LUSTRE_IMP_FULL); + *request = req; + if (rc == -ERESTARTSYS) + rc = 0; - rec = mds_req_tgt((*request)->rq_req.mds); - mds_create_pack(rec, dir, name, namelen, mode, id, uid, gid, time, - tgt, tgtlen); + RETURN(rc); +} - rc = mdc_reint(peer, (*request)); +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) +{ + struct obd_device *obd = exp->exp_obd; + struct ptlrpc_request *req; + int rc, size[3] = {sizeof(struct mds_rec_create), op_data->namelen + 1}; + int level, bufcount = 2; + ENTRY; - EXIT; - return rc; + if (data && datalen) { + size[bufcount] = datalen; + bufcount++; + } + + req = ptlrpc_prep_req(class_exp2cliimp(exp), 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, 0, op_data, mode, rdev, data, datalen); + + size[0] = sizeof(struct mds_body); + req->rq_replen = lustre_msg_size(1, 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; + } + + if (!rc) + mdc_store_inode_generation(req, 0, 0); + + *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 mdc_op_data *data, struct ptlrpc_request **request) { - int rc; - struct mds_rec_unlink *rec; - - (*request) = ptlrpc_prep_req(peer, MDS_REINT, 0, NULL, - sizeof(*rec) + size_round0(namelen), NULL); - if (!(*request)) { - CERROR("cannot pack\n"); - return -ENOMEM; - } + struct obd_device *obddev = class_exp2obd(exp); + struct ptlrpc_request *req = *request; + int rc, size[2] = {sizeof(struct mds_rec_unlink), data->namelen + 1}; + ENTRY; - (*request)->rq_replen = - sizeof(struct ptlrep_hdr) + sizeof(struct mds_rep); + LASSERT(req == NULL); + req = ptlrpc_prep_req(class_exp2cliimp(exp), MDS_REINT, 2, 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[0] = sizeof(struct mds_body); + size[1] = obddev->u.cli.cl_max_mds_easize; + size[2] = obddev->u.cli.cl_max_mds_cookiesize; + req->rq_replen = lustre_msg_size(3, size); - rc = mdc_reint(peer, (*request)); + mdc_unlink_pack(req, 0, data); - EXIT; - return rc; + rc = mdc_reint(req, obddev->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 mdc_op_data *data, struct ptlrpc_request **request) { - int rc; - struct mds_rec_link *rec; + struct obd_device *obd = exp->exp_obd; + struct ptlrpc_request *req; + int rc, size[2] = {sizeof(struct mds_rec_link), data->namelen + 1}; ENTRY; - (*request) = ptlrpc_prep_req(peer, MDS_REINT, 0, NULL, - sizeof(*rec) + size_round0(namelen), NULL); - if (!(*request)) { - CERROR("cannot pack\n"); - return -ENOMEM; - } + req = ptlrpc_prep_req(class_exp2cliimp(exp), MDS_REINT, 2, size, + NULL); + if (req == NULL) + RETURN(-ENOMEM); + + mdc_link_pack(req, 0, data); - (*request)->rq_replen = - sizeof(struct ptlrep_hdr) + sizeof(struct mds_rep); + size[0] = sizeof(struct mds_body); + req->rq_replen = lustre_msg_size(1, size); - rec = mds_req_tgt((*request)->rq_req.mds); - mds_link_pack(rec, src->d_inode, dir, name, namelen); + rc = mdc_reint(req, obd->u.cli.cl_rpc_lock, LUSTRE_IMP_FULL); + *request = req; + if (rc == -ERESTARTSYS) + rc = 0; - rc = mdc_reint(peer, (*request)); - EXIT; - return rc; + 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 mdc_op_data *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 rc, size[3] = {sizeof(struct mds_rec_rename), oldlen + 1, + newlen + 1}; ENTRY; - (*request) = ptlrpc_prep_req(peer, MDS_REINT, 0, NULL, - sizeof(*rec) + size_round0(oldlen) - + size_round0(newlen), NULL); - if (!(*request)) { - CERROR("cannot pack\n"); - return -ENOMEM; - } + req = ptlrpc_prep_req(class_exp2cliimp(exp), MDS_REINT, 3, size, + NULL); + if (req == NULL) + RETURN(-ENOMEM); - (*request)->rq_replen = - sizeof(struct ptlrep_hdr) + sizeof(struct mds_rep); + mdc_rename_pack(req, 0, data, old, oldlen, new, newlen); - rec = mds_req_tgt((*request)->rq_req.mds); - mds_rename_pack(rec, src, tgt, old, oldlen, new, newlen); + size[0] = sizeof(struct mds_body); + size[1] = obd->u.cli.cl_max_mds_easize; + req->rq_replen = lustre_msg_size(2, 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); }