X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lustre%2Fmdc%2Fmdc_reint.c;h=90ef7e59204ad1c5e9c9de351c46fecc5d1de33b;hb=37391a643dffc94f92e7e502f0d5f410d9a098d6;hp=9f67163fdbb7c4874e8dc36ca25debc66b9db4fb;hpb=a93f57342d4ab3f77a1f8519ef0e659a10c1e4b2;p=fs%2Flustre-release.git diff --git a/lustre/mdc/mdc_reint.c b/lustre/mdc/mdc_reint.c index 9f67163..90ef7e5 100644 --- a/lustre/mdc/mdc_reint.c +++ b/lustre/mdc/mdc_reint.c @@ -1,5 +1,22 @@ -/* - * Copryright (C) 2001 Cluster File Systems, Inc. +/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*- + * vim:expandtab:shiftwidth=8:tabstop=8: + * + * Copyright (C) 2001, 2002 Cluster File Systems, Inc. + * + * This file is part of Lustre, http://www.sf.net/projects/lustre/ + * + * 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. + * + * 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. * */ @@ -8,90 +25,189 @@ #include #include #include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include -#include -#include -#include -#include +#define DEBUG_SUBSYSTEM S_MDC -#include -#include -#include +#include #include +#include + +static int mdc_reint(struct ptlrpc_request *request, int level) +{ + int rc; + request->rq_level = level; + + rc = ptlrpc_queue_wait(request); + rc = ptlrpc_check_status(request, rc); + + if (rc) + CERROR("error in handling %d\n", rc); + + return rc; +} + +int mdc_setattr(struct lustre_handle *conn, + struct inode *inode, struct iattr *iattr, + struct ptlrpc_request **request) +{ + struct ptlrpc_request *req; + struct mds_rec_setattr *rec; + int rc, size = sizeof(*rec); + ENTRY; + + req = ptlrpc_prep_req(class_conn2cliimp(conn), MDS_REINT, 1, &size, + NULL); + if (!req) + RETURN(-ENOMEM); + + mds_setattr_pack(req, 0, inode, iattr, NULL, 0); + + size = sizeof(struct mds_body); + req->rq_replen = lustre_msg_size(1, &size); + + rc = mdc_reint(req, LUSTRE_CONN_FULL); + *request = req; + if (rc == -ERESTARTSYS ) + rc = 0; + + RETURN(rc); +} -extern int mdc_reint(struct mds_request *request); -extern struct mds_request *mds_prep_req(int opcode, int namelen, char *name, int tgtlen, char *tgt); +int mdc_create(struct lustre_handle *conn, + struct inode *dir, const char *name, int namelen, + const char *tgt, int tgtlen, int mode, __u32 uid, + __u32 gid, __u64 time, __u64 rdev, struct lov_stripe_md *smd, + struct ptlrpc_request **request) +{ + struct mds_rec_create *rec; + struct ptlrpc_request *req; + int rc, size[3] = {sizeof(struct mds_rec_create), namelen + 1, 0}; + char *tmp; + int level, bufcount = 2; + ENTRY; + + if (S_ISREG(mode)) { + if (!smd) { + CERROR("File create, but no md (%ld, %*s)\n", + dir->i_ino, namelen, name); + LBUG(); + } + size[2] = smd->lmd_easize; + bufcount = 3; + } else if (S_ISLNK(mode)) { + size[2] = tgtlen + 1; + bufcount = 3; + } + + req = ptlrpc_prep_req(class_conn2cliimp(conn), MDS_REINT, bufcount, size, + NULL); + if (!req) + RETURN(-ENOMEM); + + /* mds_create_pack fills msg->bufs[1] with name */ + rec = lustre_msg_buf(req->rq_reqmsg, 0); + mds_create_pack(req, 0, dir, mode, rdev, uid, gid, time, + name, namelen, NULL, 0); + + if (S_ISREG(mode)) { + lov_packmd(lustre_msg_buf(req->rq_reqmsg, 2), smd); + } else if (S_ISLNK(mode)) { + tmp = lustre_msg_buf(req->rq_reqmsg, 2); + LOGL0(tgt, tgtlen, tmp); + } + + size[0] = sizeof(struct mds_body); + req->rq_replen = lustre_msg_size(1, size); + + level = LUSTRE_CONN_FULL; + resend: + rc = mdc_reint(req, level); + if (rc == -ERESTARTSYS) { + __u32 *opcode = lustre_msg_buf(req->rq_reqmsg, 0); + level = LUSTRE_CONN_RECOVD; + CERROR("Lost reply: re-create rep.\n"); + req->rq_flags = 0; + *opcode = NTOH__u32(REINT_RECREATE); + goto resend; + } + + *request = req; + RETURN(rc); +} + +int mdc_unlink(struct lustre_handle *conn, struct inode *dir, + struct inode *child, __u32 mode, const char *name, int namelen, + struct ptlrpc_request **request) +{ + struct ptlrpc_request *req; + int rc, size[2] = {sizeof(struct mds_rec_unlink), namelen + 1}; + ENTRY; + + req = ptlrpc_prep_req(class_conn2cliimp(conn), MDS_REINT, 2, size, NULL); + if (!req) + RETURN(-ENOMEM); + + mds_unlink_pack(req, 0, dir, child, mode, name, namelen); + + size[0] = sizeof(struct mds_body); + req->rq_replen = lustre_msg_size(1, size); + + rc = mdc_reint(req, LUSTRE_CONN_FULL); + *request = req; + if (rc == -ERESTARTSYS) + rc = 0; + + RETURN(rc); +} -int mdc_setattr(struct inode *inode, struct iattr *iattr, - struct mds_rep **rep, struct mds_rep_hdr **hdr) +int mdc_link(struct lustre_handle *conn, + struct dentry *src, struct inode *dir, const char *name, + int namelen, struct ptlrpc_request **request) { - int rc; - struct mds_request *request; - struct mds_rec_setattr *rec; - - request = mds_prep_req(MDS_REINT, 0, NULL, sizeof(*rec), NULL); - if (!request) { - printk("mdc request: cannot pack\n"); - return -ENOMEM; - } - - rec = mds_req_tgt(request->rq_req); - mds_setattr_pack(rec, inode, iattr); - request->rq_req->opcode = HTON__u32(REINT_SETATTR); - - rc = mdc_reint(request); - - if (rep) { - *rep = request->rq_rep; - } - if (hdr) { - *hdr = request->rq_rephdr; - } - - kfree(request); - return rc; + struct ptlrpc_request *req; + int rc, size[2] = {sizeof(struct mds_rec_link), namelen + 1}; + ENTRY; + + req = ptlrpc_prep_req(class_conn2cliimp(conn), MDS_REINT, 2, size, NULL); + if (!req) + RETURN(-ENOMEM); + + mds_link_pack(req, 0, src->d_inode, dir, name, namelen); + + size[0] = sizeof(struct mds_body); + req->rq_replen = lustre_msg_size(1, size); + + rc = mdc_reint(req, LUSTRE_CONN_FULL); + *request = req; + if (rc == -ERESTARTSYS ) + rc = 0; + + RETURN(rc); } -int mdc_create(struct inode *dir, const char *name, int namelen, - int mode, __u64 id, __u32 uid, __u32 gid, __u64 time, - struct mds_rep **rep, struct mds_rep_hdr **hdr) +int mdc_rename(struct lustre_handle *conn, + struct inode *src, struct inode *tgt, const char *old, + int oldlen, const char *new, int newlen, + struct ptlrpc_request **request) { - int rc; - struct mds_request *request; - struct mds_rec_create *rec; - - request = mds_prep_req(MDS_REINT, 0, NULL, - sizeof(*rec) + size_round(namelen + 1), - NULL); - if (!request) { - printk("mdc_create: cannot pack\n"); - return -ENOMEM; - } - - rec = mds_req_tgt(request->rq_req); - mds_create_pack(rec, dir, name, namelen, mode, id, uid, gid, time); - - rc = mdc_reint(request); - - if (rep) { - *rep = request->rq_rep; - } - if (hdr) { - *hdr = request->rq_rephdr; - } - - kfree(request); - return rc; + struct ptlrpc_request *req; + int rc, size[3] = {sizeof(struct mds_rec_rename), oldlen + 1, + newlen + 1}; + ENTRY; + + req = ptlrpc_prep_req(class_conn2cliimp(conn), MDS_REINT, 3, size, NULL); + if (!req) + RETURN(-ENOMEM); + + mds_rename_pack(req, 0, src, tgt, old, oldlen, new, newlen); + + size[0] = sizeof(struct mds_body); + req->rq_replen = lustre_msg_size(1, size); + + rc = mdc_reint(req, LUSTRE_CONN_FULL); + *request = req; + if (rc == -ERESTARTSYS ) + rc = 0; + + RETURN(rc); }