--- /dev/null
+ /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
+ * Copyright (C) 2002, 2003 Cluster File Systems, Inc.
+ * Author: Phil Schwan <phil@clusterfs.com>
+ * Peter Braam <braam@clusterfs.com>
+ * Mike Shaver <shaver@clusterfs.com>
+ *
+ * This file is part of Lustre, http://www.lustre.org.
+ *
+ * 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.
+ */
+
+#ifndef EXPORT_SYMTAB
+# define EXPORT_SYMTAB
+#endif
+#define DEBUG_SUBSYSTEM S_LOV
+#ifdef __KERNEL__
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/pagemap.h>
+#include <asm/div64.h>
+#else
+#include <liblustre.h>
+#endif
+
+#include <linux/obd_support.h>
+#include <linux/lustre_lib.h>
+#include <linux/lustre_net.h>
+#include <linux/lustre_idl.h>
+#include <linux/lustre_lite.h> /* for LL_IOC_LOV_[GS]ETSTRIPE */
+#include <linux/lustre_dlm.h>
+#include <linux/lustre_mds.h>
+#include <linux/obd_class.h>
+#include <linux/obd_lov.h>
+#include <linux/obd_ost.h>
+#include <linux/seq_file.h>
+#include <linux/lprocfs_status.h>
+
+#include "lov_internal.h"
+
+/* For LOV catalogs, we "nest" catalogs from the parent catalog. What this
+ * means is that the parent catalog has a bunch of log cookies that are
+ * pointing at one catalog for each OSC. The OSC catalogs in turn hold
+ * cookies for actual log files. */
+int lov_llog_open(struct obd_device *obd, struct obd_device *disk_obd,
+ int index, int named, int flags, struct obd_uuid *log_uuid)
+
+{
+ struct lov_obd *lov = &obd->u.lov;
+ int i, rc;
+
+ ENTRY;
+ for (i = 0; i < lov->desc.ld_tgt_count; i++) {
+ struct obd_device *child = lov->tgts[i].ltd_exp->exp_obd;
+ rc = obd_llog_open(child, disk_obd,
+ index, named, flags, log_uuid);
+ CERROR("error lov_llog_open %d\n", i);
+ if (rc)
+ break;
+ }
+ RETURN(rc);
+}
+
+int lov_get_catalogs(struct lov_obd *lov, struct llog_handle *cathandle)
+{
+ struct obd_device *obd = cathandle->lgh_obd;
+ struct lustre_handle conn;
+ struct obd_export *exp;
+ struct obd_uuid cluuid = { "MDS_OSC_UUID" };
+ int rc = 0, i;
+ ENTRY;
+
+ for (i = 0; i < lov->desc.ld_active_tgt_count; i ++) {
+ rc = class_connect(&conn, obd, &cluuid);
+ if (rc) {
+ CERROR("failed %d: \n", rc);
+ GOTO(out, rc);
+ }
+ exp = class_conn2export(&conn);
+ lov->tgts[i].ltd_exp->exp_obd->obd_log_exp = exp;
+ lov->tgts[i].ltd_cathandle = cathandle;
+ }
+
+ lov->lo_catalog_loaded = 1;
+ RETURN(rc);
+
+out:
+ while (--i > 0) {
+ class_disconnect(lov->tgts[i].ltd_exp->exp_obd->obd_log_exp, 0);
+ lov->tgts[i].ltd_cathandle = cathandle;
+ }
+ RETURN(rc);
+}
+
+/* Add log records for each OSC that this object is striped over, and return
+ * cookies for each one. We _would_ have nice abstraction here, except that
+ * we need to keep cookies in stripe order, even if some are NULL, so that
+ * the right cookies are passed back to the right OSTs at the client side.
+ * Unset cookies should be all-zero (which will never occur naturally). */
+int lov_log_add(struct obd_export *exp,
+ struct llog_handle *cathandle,
+ struct llog_rec_hdr *rec, struct lov_stripe_md *lsm,
+ struct llog_cookie *logcookies, int numcookies)
+{
+ struct obd_device *obd = class_exp2obd(exp);
+ struct lov_obd *lov = &obd->u.lov;
+ struct lov_oinfo *loi;
+ int i, rc = 0;
+ ENTRY;
+
+ LASSERT(logcookies && numcookies >= lsm->lsm_stripe_count);
+
+ if (unlikely(!lov->lo_catalog_loaded))
+ lov_get_catalogs(lov, cathandle);
+
+ for (i = 0,loi = lsm->lsm_oinfo; i < lsm->lsm_stripe_count; i++,loi++) {
+ rc += obd_log_add(lov->tgts[loi->loi_ost_idx].ltd_exp,
+ lov->tgts[loi->loi_ost_idx].ltd_cathandle,
+ rec, NULL, logcookies + rc, numcookies - rc);
+ }
+
+ RETURN(rc);
+}
+
+int lov_log_cancel(struct obd_export *exp, struct lov_stripe_md *lsm,
+ int count, struct llog_cookie *cookies, int flags)
+{
+ struct lov_obd *lov;
+ struct lov_oinfo *loi;
+ int rc = 0, i;
+ ENTRY;
+
+ LASSERT(lsm != NULL);
+ if (exp == NULL || exp->exp_obd == NULL)
+ RETURN(-ENODEV);
+
+ LASSERT(count == lsm->lsm_stripe_count);
+
+ loi = lsm->lsm_oinfo;
+ lov = &exp->exp_obd->u.lov;
+ for (i = 0; i < count; i++, cookies++, loi++) {
+ int err;
+
+ err = obd_log_cancel(lov->tgts[loi->loi_ost_idx].ltd_exp,
+ lov->tgts[loi->loi_ost_idx].ltd_cathandle,
+ NULL, 1, cookies, flags);
+
+ if (err && lov->tgts[loi->loi_ost_idx].active) {
+ CERROR("error: objid "LPX64" subobj "LPX64
+ " on OST idx %d: rc = %d\n", lsm->lsm_object_id,
+ loi->loi_id, loi->loi_ost_idx, err);
+ if (!rc)
+ rc = err;
+ }
+ }
+ RETURN(rc);
+}
+
--- /dev/null
+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
+ * lustre/mds/mds_log.c
+ *
+ * Copyright (c) 2001-2003 Cluster File Systems, Inc.
+ * Author: Peter Braam <braam@clusterfs.com>
+ * Author: Andreas Dilger <adilger@clusterfs.com>
+ * Author: Phil Schwan <phil@clusterfs.com>
+ *
+ * This file is part of Lustre, http://www.lustre.org.
+ *
+ * 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.
+ */
+
+#define DEBUG_SUBSYSTEM S_MDS
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/version.h>
+
+#include <portals/list.h>
+#include <linux/obd_class.h>
+#include <linux/lustre_fsfilt.h>
+#include <linux/lustre_commit_confd.h>
+
+#include "mds_internal.h"
+
+
+struct llog_handle *mds_get_catalog(struct obd_device *obd)
+{
+ struct mds_obd *mds = &obd->u.mds;
+ struct mds_server_data *msd = mds->mds_server_data;
+ struct obd_run_ctxt saved;
+ struct llog_handle *cathandle = NULL;
+ struct llog_logid logid;
+ int rc;
+ ENTRY;
+
+ push_ctxt(&saved, &obd->obd_ctxt, NULL);
+ if (msd->msd_catalog_oid) {
+ logid.lgl_oid = le64_to_cpu(msd->msd_catalog_oid);
+ logid.lgl_ogen = le32_to_cpu(msd->msd_catalog_ogen);
+ rc = llog_create(obd, &cathandle, &logid, NULL);
+ if (rc) {
+ CERROR("error opening catalog "LPX64":%x: rc %d\n",
+ logid.lgl_oid, logid.lgl_ogen,
+ (int)PTR_ERR(cathandle));
+ msd->msd_catalog_oid = 0;
+ msd->msd_catalog_ogen = 0;
+ }
+ }
+
+ if (!msd->msd_catalog_oid) {
+ rc = llog_create(obd, &cathandle, NULL, NULL);
+ if (rc) {
+ CERROR("error creating new catalog: rc %d\n", rc);
+ cathandle = ERR_PTR(rc);
+ GOTO(out, cathandle);
+ }
+ logid = cathandle->lgh_id;
+ msd->msd_catalog_oid = cpu_to_le64(logid.lgl_oid);
+ msd->msd_catalog_ogen = cpu_to_le32(logid.lgl_ogen);
+ rc = mds_update_server_data(obd, 0);
+ if (rc) {
+ CERROR("error writing new catalog to disk: rc %d\n",rc);
+ GOTO(out_handle, rc);
+ }
+ }
+
+ //rc = llog_init_handle(cathandle, LLOG_F_IS_CAT, &obd->u.filter.fo_mdc_uuid);
+ rc = llog_init_handle(cathandle, LLOG_F_IS_CAT, &obd->obd_uuid);
+ if (rc)
+ GOTO(out_handle, rc);
+out:
+ pop_ctxt(&saved, &obd->obd_ctxt, NULL);
+ RETURN(cathandle);
+
+out_handle:
+ llog_close(cathandle);
+ cathandle = ERR_PTR(rc);
+ goto out;
+}
+
+
+int mds_log_op_unlink(struct obd_device *obd,
+ struct inode *inode, struct lustre_msg *repmsg,
+ int offset)
+{
+ struct mds_obd *mds = &obd->u.mds;
+ struct lov_stripe_md *lsm = NULL;
+ struct llog_unlink_rec *lur;
+ int rc;
+ ENTRY;
+
+ if (IS_ERR(mds->mds_osc_obd))
+ RETURN(PTR_ERR(mds->mds_osc_obd));
+
+ rc = obd_unpackmd(mds->mds_osc_exp, &lsm,
+ lustre_msg_buf(repmsg, offset, 0),
+ repmsg->buflens[offset]);
+ if (rc < 0)
+ RETURN(rc);
+
+ OBD_ALLOC(lur, sizeof(*lur));
+ if (!lur)
+ RETURN(-ENOMEM);
+ lur->lur_hdr.lrh_len = lur->lur_tail.lrt_len = sizeof(*lur);
+ lur->lur_hdr.lrh_type = MDS_UNLINK_REC;
+ lur->lur_oid = inode->i_ino;
+ lur->lur_ogen = inode->i_generation;
+
+#ifdef ENABLE_ORPHANS
+#if 0
+ rc = obd_log_add(mds->mds_osc_exp, mds->mds_catalog, &lur->lur_hdr,
+ lsm, lustre_msg_buf(repmsg, offset + 1, 0),
+ repmsg->buflens[offset+1]/sizeof(struct llog_cookie),
+ NULL);
+#endif
+ rc = lov_log_add(mds->mds_osc_exp, mds->mds_catalog, &lur->lur_hdr,
+ lsm, lustre_msg_buf(repmsg, offset + 1, 0),
+ repmsg->buflens[offset+1]/sizeof(struct llog_cookie));
+#endif
+
+ obd_free_memmd(mds->mds_osc_exp, &lsm);
+ OBD_FREE(lur, sizeof(*lur));
+
+ RETURN(rc);
+}
--- /dev/null
+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
+ * lustre/mds/mds_orphan.c
+ *
+ * Copyright (c) 2001-2003 Cluster File Systems, Inc.
+ * Author: Peter Braam <braam@clusterfs.com>
+ * Author: Andreas Dilger <adilger@clusterfs.com>
+ * Author: Phil Schwan <phil@clusterfs.com>
+ *
+ * This file is part of Lustre, http://www.lustre.org.
+ *
+ * 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.
+ */
+
+/* code for handling open unlinked files */
+
+#define DEBUG_SUBSYSTEM S_MDS
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/version.h>
+
+#include <portals/list.h>
+#include <linux/obd_class.h>
+#include <linux/lustre_fsfilt.h>
+#include <linux/lustre_commit_confd.h>
+#include <linux/lvfs.h>
+
+#include "mds_internal.h"
+
+
+/* If we are unlinking an open file/dir (i.e. creating an orphan) then
+ * we instead link the inode into the PENDING directory until it is
+ * finally released. We can't simply call mds_reint_rename() or some
+ * part thereof, because we don't have the inode to check for link
+ * count/open status until after it is locked.
+ *
+ * For lock ordering, we always get the PENDING, then pending_child lock
+ * last to avoid deadlocks.
+ */
+
+int mds_open_unlink_rename(struct mds_update_record *rec,
+ struct obd_device *obd, struct dentry *dparent,
+ struct dentry *dchild, void **handle)
+{
+ struct mds_obd *mds = &obd->u.mds;
+ struct inode *pending_dir = mds->mds_pending_dir->d_inode;
+ struct dentry *pending_child;
+ char fidname[LL_FID_NAMELEN];
+ int fidlen = 0, rc;
+ ENTRY;
+
+ LASSERT(!mds_inode_is_orphan(dchild->d_inode));
+
+ down(&pending_dir->i_sem);
+ fidlen = ll_fid2str(fidname, dchild->d_inode->i_ino,
+ dchild->d_inode->i_generation);
+
+ CDEBUG(D_ERROR, "pending destroy of %dx open file %s = %s\n",
+ mds_open_orphan_count(dchild->d_inode),
+ rec->ur_name, fidname);
+
+ pending_child = lookup_one_len(fidname, mds->mds_pending_dir, fidlen);
+ if (IS_ERR(pending_child))
+ GOTO(out_lock, rc = PTR_ERR(pending_child));
+
+ if (pending_child->d_inode != NULL) {
+ CERROR("re-destroying orphan file %s?\n", rec->ur_name);
+ LASSERT(pending_child->d_inode == dchild->d_inode);
+ GOTO(out_dput, rc = 0);
+ }
+
+ *handle = fsfilt_start(obd, pending_dir, FSFILT_OP_RENAME, NULL);
+ if (IS_ERR(*handle))
+ GOTO(out_dput, rc = PTR_ERR(*handle));
+
+ lock_kernel();
+ rc = vfs_rename(dparent->d_inode, dchild, pending_dir, pending_child);
+ unlock_kernel();
+ if (rc)
+ CERROR("error renaming orphan %lu/%s to PENDING: rc = %d\n",
+ dparent->d_inode->i_ino, rec->ur_name, rc);
+ else
+ mds_inode_set_orphan(dchild->d_inode);
+out_dput:
+ dput(pending_child);
+out_lock:
+ up(&pending_dir->i_sem);
+ RETURN(rc);
+}
+
+
+int mds_cleanup_orphans(struct obd_device *obd)
+{
+ struct mds_obd *mds = &obd->u.mds;
+ struct obd_run_ctxt saved;
+ struct file *file;
+ struct dentry *dchild;
+ struct inode *child_inode, *pending_dir = mds->mds_pending_dir->d_inode;
+ struct l_linux_dirent *dirent, *ptr;
+ unsigned int count = pending_dir->i_size;
+ void *handle = NULL;
+ struct lov_mds_md *lmm = NULL;
+ struct lov_stripe_md *lsm = NULL;
+ struct obd_trans_info oti = { 0 };
+ struct obdo *oa;
+ struct ptlrpc_request *req;
+ struct mds_body *body;
+ int lengths[3] = {sizeof(struct mds_body),
+ mds->mds_max_mdsize,
+ mds->mds_max_cookiesize};
+ int rc = 0, rc2 = 0, item = 0;
+ ENTRY;
+
+ push_ctxt(&saved, &obd->obd_ctxt, NULL);
+ dget(mds->mds_pending_dir);
+ mntget(mds->mds_vfsmnt);
+ file = dentry_open(mds->mds_pending_dir, mds->mds_vfsmnt,
+ O_RDONLY | O_LARGEFILE);
+ if (IS_ERR(file))
+ GOTO(err_open, rc2 = PTR_ERR(file));
+
+ OBD_ALLOC(dirent, count);
+ if (dirent == NULL)
+ GOTO(err_alloc_dirent, rc2 = -ENOMEM);
+
+ rc = l_readdir(file, dirent, count);
+ filp_close(file, 0);
+ if (rc < 0)
+ GOTO(err_out, rc2 = rc);
+
+ for (ptr = dirent; (char *)ptr < (char *)dirent + rc;
+ (char *)ptr += ptr->d_reclen) {
+ int namlen = strlen(ptr->d_name);
+
+ if (((namlen == 1) && !strcmp(ptr->d_name, ".")) ||
+ ((namlen == 2) && !strcmp(ptr->d_name, "..")))
+ continue;
+
+ down(&pending_dir->i_sem);
+ dchild = lookup_one_len(ptr->d_name, mds->mds_pending_dir, namlen);
+ if (IS_ERR(dchild)) {
+ up(&pending_dir->i_sem);
+ GOTO(err_out, rc2 = PTR_ERR(dchild));
+ }
+ if (!dchild->d_inode) {
+ CDEBUG(D_ERROR, "orphan %s has been deleted\n", ptr->d_name);
+ GOTO(next, rc2 = 0);
+ }
+
+ child_inode = dchild->d_inode;
+ if (mds_inode_is_orphan(child_inode) &&
+ mds_open_orphan_count(child_inode)) {
+ CDEBUG(D_ERROR, "orphan %s was re-opened during recovery\n",
+ ptr->d_name);
+ GOTO(next, rc2 = 0);
+ }
+
+ CDEBUG(D_ERROR, "cleanup orphan %s start on mds and ost:\n", ptr->d_name);
+
+ LASSERT(mds->mds_osc_obd != NULL);
+
+ OBD_ALLOC(req, sizeof(*req));
+ if (!req) {
+ CERROR("request allocation out of memory\n");
+ GOTO(err_lov_conn, rc2 = -ENOMEM);
+ }
+ rc2 = lustre_pack_msg(3, lengths, NULL, &req->rq_replen,
+ &req->rq_repmsg);
+ if (rc2) {
+ CERROR("cannot pack request %d\n", rc2);
+ OBD_FREE(req, sizeof(*req));
+ GOTO(out_free_req, rc2);
+ }
+ body = lustre_msg_buf(req->rq_repmsg, 0, sizeof(*body));
+ LASSERT(body != NULL);
+
+ mds_pack_inode2body(body, child_inode);
+ mds_pack_md(obd, req->rq_repmsg, 1, body, child_inode);
+ lmm = lustre_msg_buf(req->rq_repmsg, 1, 0);
+
+#ifdef ENABLE_ORPHANS
+ if (mds_log_op_unlink(obd, child_inode,
+ req->rq_repmsg, 1) > 0)
+ oa->o_valid |= OBD_MD_FLCOOKIE;
+#endif
+
+ rc2 = obd_unpackmd(mds->mds_osc_exp, &lsm, lmm, body->eadatasize);
+ if (rc2 < 0) {
+ CERROR("Error unpack md %p\n", lmm);
+ GOTO(out_free_req, rc2 = 0);
+ } else {
+ LASSERT(rc2 >= sizeof(*lsm));
+ rc2 = 0;
+ }
+
+ oa = obdo_alloc();
+ if (oa == NULL)
+ GOTO(err_alloc_oa, rc2 = -ENOMEM);
+
+ oa->o_id = lsm->lsm_object_id;
+ oa->o_mode = child_inode->i_mode & S_IFMT;
+ oa->o_valid = OBD_MD_FLID | OBD_MD_FLTYPE;
+
+#ifdef ENABLE_ORPHANS
+ if (oa->o_valid & OBD_MD_FLCOOKIE) {
+ oti.oti_logcookies =
+ lustre_msg_buf(req->rq_repmsg, 2,
+ sizeof(struct llog_cookie) *
+ lsm->lsm_stripe_count);
+ if (oti.oti_logcookies == NULL)
+ oa->o_valid &= ~OBD_MD_FLCOOKIE;
+ }
+#endif
+
+ rc2 = obd_destroy(mds->mds_osc_exp, oa, lsm, &oti);
+ obdo_free(oa);
+ if (rc2) {
+ CERROR("destroy orphan objid 0x"LPX64" on ost error %d\n",
+ lsm->lsm_object_id, rc2);
+ GOTO(out_free_memmd, rc2 = 0);
+ }
+ item ++;
+
+ CDEBUG(D_ERROR, "removed orphan %s object from ost successlly!\n",
+ ptr->d_name);
+
+ handle = fsfilt_start(obd, pending_dir, FSFILT_OP_UNLINK, NULL);
+ if (IS_ERR(handle)) {
+ rc2 = PTR_ERR(handle);
+ CERROR("error fsfilt_start: %d\n", rc2);
+ handle = NULL;
+ GOTO(err_alloc_oa, rc2);
+ }
+ rc2 = vfs_unlink(pending_dir, dchild);
+ if (rc2) {
+ CERROR("error unlinking orphan from PENDING directory");
+ CERROR("%s: rc %d\n", ptr->d_name, rc2);
+ }
+ if (handle) {
+ int err = fsfilt_commit(obd, pending_dir, handle, 0);
+ if (err) {
+ CERROR("error committing orphan unlink: %d\n", err);
+ rc2 = err;
+ GOTO(err_alloc_oa, rc2);
+ }
+ }
+
+ CDEBUG(D_ERROR, "removed orphan %s from mds successfully!\n",
+ ptr->d_name);
+
+out_free_memmd:
+ obd_free_memmd(mds->mds_osc_exp, &lsm);
+out_free_req:
+ OBD_FREE(req, sizeof(*req));
+next:
+ l_dput(dchild);
+ up(&pending_dir->i_sem);
+ }
+err_out:
+ OBD_FREE(dirent, count);
+err_pop:
+ pop_ctxt(&saved, &obd->obd_ctxt, NULL);
+ if (rc2 == 0)
+ rc2 = item;
+
+ RETURN(rc2);
+
+err_open:
+ mntput(mds->mds_vfsmnt);
+ l_dput(mds->mds_pending_dir);
+ goto err_pop;
+
+err_alloc_dirent:
+ filp_close(file, 0);
+ goto err_pop;
+
+err_alloc_oa:
+ obd_free_memmd(mds->mds_osc_exp, &lsm);
+ OBD_FREE(req, sizeof(*req));
+
+err_lov_conn:
+ l_dput(dchild);
+ up(&pending_dir->i_sem);
+ goto err_out;
+}
--- /dev/null
+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
+ * 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.
+ */
+
+#define DEBUG_SUBSYSTEM S_LOG
+
+#ifndef EXPORT_SYMTAB
+#define EXPORT_SYMTAB
+#endif
+
+#include <linux/fs.h>
+#include <linux/obd_class.h>
+#include <linux/lustre_log.h>
+#include <portals/list.h>
+
+int obd_llog_open(struct obd_device *obd, struct obd_device *disk_obd,
+ int index, int named, int flags, struct obd_uuid *log_uuid)
+{
+ int rc;
+ ENTRY;
+
+
+
+ RETURN(rc);
+}
+EXPORT_SYMBOL(obd_llog_open);
+
+int obd_log_add(struct obd_export *exp, struct llog_handle *cathandle,
+ struct llog_rec_hdr *rec, void *buf,
+ struct llog_cookie *logcookies, int numcookies)
+{
+ struct obd_device *obd = class_exp2obd(exp->exp_obd->obd_log_exp);
+ struct obd_run_ctxt saved;
+ int rc;
+ ENTRY;
+
+ LASSERT(cathandle != NULL);
+ push_ctxt(&saved, &obd->obd_ctxt, NULL);
+ rc = llog_cat_add_rec(cathandle, rec, logcookies, buf);
+ if (rc != 1)
+ CERROR("write one catalog record failed: %d\n", rc);
+ pop_ctxt(&saved, &obd->obd_ctxt, NULL);
+
+ RETURN(rc);
+}
+EXPORT_SYMBOL(obd_log_add);
+
+int obd_log_cancel(struct obd_export *exp, struct llog_handle *cathandle,
+ void *buf, int count, struct llog_cookie *cookies, int flags)
+{
+ struct obd_device *obd = class_exp2obd(exp->exp_obd->obd_log_exp);
+ struct obd_run_ctxt saved;
+ int rc;
+ ENTRY;
+
+ LASSERT(cathandle != NULL);
+ push_ctxt(&saved, &obd->obd_ctxt, NULL);
+ rc = llog_cat_cancel_records(cathandle, count, cookies);
+ if (rc)
+ CERROR("cancel %d catalog record failed: %d\n", count, rc);
+ pop_ctxt(&saved, &obd->obd_ctxt, NULL);
+
+ RETURN(rc);
+}
+EXPORT_SYMBOL(obd_log_cancel);
--- /dev/null
+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
+ * Copyright (C) 2001-2003 Cluster File Systems, Inc.
+ * Author: Andreas Dilger <adilger@clusterfs.com>
+ *
+ * This file is part of Lustre, http://www.lustre.org.
+ *
+ * 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.
+ *
+ * OST<->MDS recovery logging infrastructure.
+ *
+ * Invariants in implementation:
+ * - we do not share logs among different OST<->MDS connections, so that
+ * if an OST or MDS fails it need only look at log(s) relevant to itself
+ */
+
+#define DEBUG_SUBSYSTEM S_LOG
+
+#ifndef EXPORT_SYMTAB
+#define EXPORT_SYMTAB
+#endif
+
+#include <linux/fs.h>
+#include <linux/obd_class.h>
+#include <linux/lustre_log.h>
+#include <portals/list.h>
+#include <linux/lvfs.h>
+
+
+/* This is a callback from the llog_* functions.
+ * Assumes caller has already pushed us into the kernel context. */
+static int llog_net_create(struct obd_device *obd, struct llog_handle **res,
+ struct llog_logid *logid, char *name)
+{
+ struct llog_handle *handle;
+ ENTRY;
+
+ handle = llog_alloc_handle();
+ if (handle == NULL)
+ RETURN(-ENOMEM);
+ *res = handle;
+
+ if (!logid) {
+ CERROR("llog_net_create: must pass logid\n");
+ llog_free_handle(handle);
+ RETURN(-EINVAL);
+ }
+
+ handle->lgh_file = NULL;
+ handle->lgh_obd = obd;
+ handle->lgh_id.lgl_ogr = 1;
+ handle->lgh_id.lgl_oid =
+ handle->lgh_file->f_dentry->d_inode->i_ino;
+ handle->lgh_id.lgl_ogen =
+ handle->lgh_file->f_dentry->d_inode->i_generation;
+
+ RETURN(0);
+}
+
+struct llog_operations llog_net_ops = {
+ //lop_next_block: llog_lvfs_next_block,
+ //lop_read_header: llog_lvfs_read_header,
+ lop_create: llog_net_create,
+};
+
+EXPORT_SYMBOL(llog_lvfs_ops);
git://git.whamcloud.com / fs / lustre-release.git / commitdiff