-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
+/*
+ * GPL HEADER START
*
- * Copyright (C) 2001-2003 Cluster File Systems, Inc.
- * Author: Andreas Dilger <adilger@clusterfs.com>
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * This file is part of Lustre, http://www.lustre.org.
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
*
- * 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.
+ * This program 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 version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
*
- * 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
+ * version 2 along with this program; If not, see
+ * http://www.gnu.org/licenses/gpl-2.0.html
*
- * 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.
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2015, Intel Corporation.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ *
+ * lustre/ptlrpc/llog_server.c
*
- * remote api for llog - server side
+ * remote api for llog - server side
*
+ * Author: Andreas Dilger <adilger@clusterfs.com>
*/
#define DEBUG_SUBSYSTEM S_LOG
-#ifndef EXPORT_SYMTAB
-#define EXPORT_SYMTAB
-#endif
+#include <obd_class.h>
+#include <lu_target.h>
+#include <lustre_log.h>
+#include <lustre_net.h>
-#ifndef __KERNEL__
-#include <liblustre.h>
-#else
-#include <linux/fs.h>
-#endif
-
-#include <linux/obd_class.h>
-#include <linux/lustre_log.h>
-#include <linux/lustre_net.h>
-#include <portals/list.h>
-#include <linux/lustre_fsfilt.h>
-
-#ifdef __KERNEL__
-
-int llog_origin_handle_open(struct ptlrpc_request *req)
+static int llog_origin_close(const struct lu_env *env, struct llog_handle *lgh)
{
- struct obd_export *exp = req->rq_export;
- struct obd_device *obd = exp->exp_obd;
- struct llog_handle *loghandle;
- struct llogd_body *body;
- struct lvfs_run_ctxt saved;
- struct llog_logid *logid = NULL;
- struct llog_ctxt *ctxt;
- char *name = NULL;
- int rc, rc2, size = sizeof (*body);
- ENTRY;
-
- body = lustre_swab_reqbuf(req, 0, sizeof(*body),
- lustre_swab_llogd_body);
- if (body == NULL) {
- CERROR ("Can't unpack llogd_body\n");
- GOTO(out, rc =-EFAULT);
- }
-
- if (body->lgd_logid.lgl_oid > 0)
- logid = &body->lgd_logid;
-
- if (req->rq_reqmsg->bufcount > 1) {
- name = lustre_msg_string(req->rq_reqmsg, 1, 0);
- if (name == NULL) {
- CERROR("Can't unpack name\n");
- GOTO(out, rc = -EFAULT);
- }
- }
-
- ctxt = llog_get_context(&obd->obd_llogs, body->lgd_ctxt_idx);
- if (ctxt == NULL)
- GOTO(out, rc = -EINVAL);
-
- push_ctxt(&saved, ctxt->loc_lvfs_ctxt, NULL);
-
- rc = llog_open(ctxt, &loghandle, logid, name, body->lgd_llh_flags);
- if (rc)
- GOTO(out_pop, rc);
-
- rc = lustre_pack_reply(req, 1, &size, NULL);
- if (rc)
- GOTO(out_close, rc = -ENOMEM);
-
- body = lustre_msg_buf(req->rq_repmsg, 0, sizeof(*body));
- body->lgd_logid = loghandle->lgh_id;
-
-out_close:
- rc2 = llog_close(loghandle);
- if (!rc)
- rc = rc2;
-out_pop:
- pop_ctxt(&saved, ctxt->loc_lvfs_ctxt, NULL);
-out:
- RETURN(rc);
+ if (lgh->lgh_hdr != NULL && lgh->lgh_hdr->llh_flags & LLOG_F_IS_CAT)
+ return llog_cat_close(env, lgh);
+ else
+ return llog_close(env, lgh);
}
-int llog_origin_handle_prev_block(struct ptlrpc_request *req)
+/* Only open is supported, no new llog can be created remotely */
+int llog_origin_handle_open(struct ptlrpc_request *req)
{
- struct obd_export *exp = req->rq_export;
- struct obd_device *obd = exp->exp_obd;
- struct llog_handle *loghandle;
- struct llogd_body *body;
- struct lvfs_run_ctxt saved;
- struct llog_ctxt *ctxt;
- __u32 flags;
- __u8 *buf;
- void * ptr;
- int rc, rc2, size[] = {sizeof (*body), LLOG_CHUNK_SIZE};
- ENTRY;
-
- body = lustre_swab_reqbuf(req, 0, sizeof(*body),
- lustre_swab_llogd_body);
- if (body == NULL) {
- CERROR ("Can't unpack llogd_body\n");
- GOTO(out, rc =-EFAULT);
- }
-
- OBD_ALLOC(buf, LLOG_CHUNK_SIZE);
- if (!buf)
- GOTO(out, rc = -ENOMEM);
-
- ctxt = llog_get_context(&obd->obd_llogs, body->lgd_ctxt_idx);
- if (ctxt == NULL)
- GOTO(out, rc = -EINVAL);
- push_ctxt(&saved, ctxt->loc_lvfs_ctxt, NULL);
-
- rc = llog_open(ctxt, &loghandle, &body->lgd_logid, NULL, 0);
- if (rc)
- GOTO(out_pop, rc);
-
- flags = body->lgd_llh_flags;
- rc = llog_init_handle(loghandle, flags, NULL);
- if (rc)
- GOTO(out_close, rc);
-
- memset(buf, 0, LLOG_CHUNK_SIZE);
- rc = llog_prev_block(loghandle, body->lgd_index, buf, LLOG_CHUNK_SIZE);
- if (rc)
- GOTO(out_close, rc);
-
-
- rc = lustre_pack_reply(req, 2, size, NULL);
- if (rc)
- GOTO(out_close, rc = -ENOMEM);
-
- ptr = lustre_msg_buf(req->rq_repmsg, 0, sizeof (body));
- memcpy(ptr, body, sizeof(*body));
-
- ptr = lustre_msg_buf(req->rq_repmsg, 1, LLOG_CHUNK_SIZE);
- memcpy(ptr, buf, LLOG_CHUNK_SIZE);
-
-out_close:
- rc2 = llog_close(loghandle);
- if (!rc)
- rc = rc2;
-
-out_pop:
- pop_ctxt(&saved, ctxt->loc_lvfs_ctxt, NULL);
- OBD_FREE(buf, LLOG_CHUNK_SIZE);
-out:
- RETURN(rc);
+ struct obd_export *exp = req->rq_export;
+ struct obd_device *obd = exp->exp_obd;
+ struct llog_handle *loghandle;
+ struct llogd_body *body;
+ struct llog_logid *logid = NULL;
+ struct llog_ctxt *ctxt;
+ char *name = NULL;
+ int rc;
+
+ ENTRY;
+
+ body = req_capsule_client_get(&req->rq_pill, &RMF_LLOGD_BODY);
+ if (body == NULL)
+ RETURN(err_serious(-EFAULT));
+
+ rc = req_capsule_server_pack(&req->rq_pill);
+ if (rc)
+ RETURN(err_serious(-ENOMEM));
+
+ if (ostid_id(&body->lgd_logid.lgl_oi) > 0)
+ logid = &body->lgd_logid;
+
+ if (req_capsule_field_present(&req->rq_pill, &RMF_NAME, RCL_CLIENT)) {
+ name = req_capsule_client_get(&req->rq_pill, &RMF_NAME);
+ if (name == NULL)
+ RETURN(-EFAULT);
+ CDEBUG(D_INFO, "%s: opening log %s\n", obd->obd_name, name);
+ }
+
+ if (body->lgd_ctxt_idx >= LLOG_MAX_CTXTS) {
+ CDEBUG(D_WARNING, "%s: bad ctxt ID: idx=%d name=%s\n",
+ obd->obd_name, body->lgd_ctxt_idx, name);
+ RETURN(-EPROTO);
+ }
+
+ ctxt = llog_get_context(obd, body->lgd_ctxt_idx);
+ if (ctxt == NULL) {
+ CDEBUG(D_WARNING, "%s: no ctxt. group=%p idx=%d name=%s\n",
+ obd->obd_name, &obd->obd_olg, body->lgd_ctxt_idx, name);
+ RETURN(-ENODEV);
+ }
+
+ rc = llog_open(req->rq_svc_thread->t_env, ctxt, &loghandle, logid,
+ name, LLOG_OPEN_EXISTS);
+ if (rc)
+ GOTO(out_ctxt, rc);
+
+ body = req_capsule_server_get(&req->rq_pill, &RMF_LLOGD_BODY);
+ body->lgd_logid = loghandle->lgh_id;
+
+ llog_origin_close(req->rq_svc_thread->t_env, loghandle);
+ EXIT;
+out_ctxt:
+ llog_ctxt_put(ctxt);
+ return rc;
}
int llog_origin_handle_next_block(struct ptlrpc_request *req)
{
- struct obd_export *exp = req->rq_export;
- struct obd_device *obd = exp->exp_obd;
- struct llog_handle *loghandle;
- struct llogd_body *body;
- struct lvfs_run_ctxt saved;
- struct llog_ctxt *ctxt;
- __u32 flags;
- __u8 *buf;
- void * ptr;
- int size[] = {sizeof (*body),
- LLOG_CHUNK_SIZE};
- int rc, rc2;
- ENTRY;
-
- body = lustre_swab_reqbuf(req, 0, sizeof(*body),
- lustre_swab_llogd_body);
- if (body == NULL) {
- CERROR ("Can't unpack llogd_body\n");
- GOTO(out, rc =-EFAULT);
- }
-
- OBD_ALLOC(buf, LLOG_CHUNK_SIZE);
- if (!buf)
- GOTO(out, rc = -ENOMEM);
-
- ctxt = llog_get_context(&obd->obd_llogs, body->lgd_ctxt_idx);
- if (ctxt == NULL)
- GOTO(out, rc = -EINVAL);
- push_ctxt(&saved, ctxt->loc_lvfs_ctxt, NULL);
-
- rc = llog_open(ctxt, &loghandle, &body->lgd_logid, NULL, 0);
- if (rc)
- GOTO(out_pop, rc);
-
- flags = body->lgd_llh_flags;
- rc = llog_init_handle(loghandle, flags, NULL);
- if (rc)
- GOTO(out_close, rc);
-
- memset(buf, 0, LLOG_CHUNK_SIZE);
- rc = llog_next_block(loghandle, &body->lgd_saved_index,
- body->lgd_index,
- &body->lgd_cur_offset, buf, LLOG_CHUNK_SIZE);
- if (rc)
- GOTO(out_close, rc);
-
-
- rc = lustre_pack_reply(req, 2, size, NULL);
- if (rc)
- GOTO(out_close, rc = -ENOMEM);
-
- ptr = lustre_msg_buf(req->rq_repmsg, 0, sizeof (body));
- memcpy(ptr, body, sizeof(*body));
-
- ptr = lustre_msg_buf(req->rq_repmsg, 1, LLOG_CHUNK_SIZE);
- memcpy(ptr, buf, LLOG_CHUNK_SIZE);
-
+ struct llog_handle *loghandle;
+ struct llogd_body *body;
+ struct llogd_body *repbody;
+ struct llog_ctxt *ctxt;
+ __u32 flags;
+ void *ptr;
+ int rc;
+
+ ENTRY;
+
+ body = req_capsule_client_get(&req->rq_pill, &RMF_LLOGD_BODY);
+ if (body == NULL)
+ RETURN(err_serious(-EFAULT));
+
+ req_capsule_set_size(&req->rq_pill, &RMF_EADATA, RCL_SERVER,
+ LLOG_MIN_CHUNK_SIZE);
+ rc = req_capsule_server_pack(&req->rq_pill);
+ if (rc)
+ RETURN(err_serious(-ENOMEM));
+
+ if (body->lgd_ctxt_idx >= LLOG_MAX_CTXTS) {
+ CDEBUG(D_WARNING, "%s: bad ctxt ID: idx=%d\n",
+ req->rq_export->exp_obd->obd_name, body->lgd_ctxt_idx);
+ RETURN(-EPROTO);
+ }
+
+ ctxt = llog_get_context(req->rq_export->exp_obd, body->lgd_ctxt_idx);
+ if (ctxt == NULL)
+ RETURN(-ENODEV);
+
+ rc = llog_open(req->rq_svc_thread->t_env, ctxt, &loghandle,
+ &body->lgd_logid, NULL, LLOG_OPEN_EXISTS);
+ if (rc)
+ GOTO(out_ctxt, rc);
+
+ flags = body->lgd_llh_flags;
+ rc = llog_init_handle(req->rq_svc_thread->t_env, loghandle, flags,
+ NULL);
+ if (rc)
+ GOTO(out_close, rc);
+
+ repbody = req_capsule_server_get(&req->rq_pill, &RMF_LLOGD_BODY);
+ *repbody = *body;
+
+ ptr = req_capsule_server_get(&req->rq_pill, &RMF_EADATA);
+ rc = llog_next_block(req->rq_svc_thread->t_env, loghandle,
+ &repbody->lgd_saved_index, repbody->lgd_index,
+ &repbody->lgd_cur_offset, ptr,
+ LLOG_MIN_CHUNK_SIZE);
+ if (rc)
+ GOTO(out_close, rc);
+ EXIT;
out_close:
- rc2 = llog_close(loghandle);
- if (!rc)
- rc = rc2;
-
-out_pop:
- pop_ctxt(&saved, ctxt->loc_lvfs_ctxt, NULL);
- OBD_FREE(buf, LLOG_CHUNK_SIZE);
-out:
- RETURN(rc);
+ llog_origin_close(req->rq_svc_thread->t_env, loghandle);
+out_ctxt:
+ llog_ctxt_put(ctxt);
+ return rc;
}
-int llog_origin_handle_read_header(struct ptlrpc_request *req)
-{
- struct obd_export *exp = req->rq_export;
- struct obd_device *obd = exp->exp_obd;
- struct llog_handle *loghandle;
- struct llogd_body *body;
- struct llog_log_hdr *hdr;
- struct lvfs_run_ctxt saved;
- struct llog_ctxt *ctxt;
- __u32 flags;
- int size[] = {sizeof (*hdr)};
- int rc, rc2;
- ENTRY;
-
- body = lustre_swab_reqbuf(req, 0, sizeof(*body),
- lustre_swab_llogd_body);
- if (body == NULL) {
- CERROR ("Can't unpack llogd_body\n");
- GOTO(out, rc =-EFAULT);
- }
-
- ctxt = llog_get_context(&obd->obd_llogs, body->lgd_ctxt_idx);
- if (ctxt == NULL)
- GOTO(out, rc = -EINVAL);
- push_ctxt(&saved, ctxt->loc_lvfs_ctxt, NULL);
-
- rc = llog_open(ctxt, &loghandle, &body->lgd_logid, NULL, 0);
- if (rc)
- GOTO(out_pop, rc);
-
- /* init_handle reads the header */
- flags = body->lgd_llh_flags;
- rc = llog_init_handle(loghandle, flags, NULL);
- if (rc)
- GOTO(out_close, rc);
-
- rc = lustre_pack_reply(req, 1, size, NULL);
- if (rc)
- GOTO(out_close, rc = -ENOMEM);
-
- hdr = lustre_msg_buf(req->rq_repmsg, 0, sizeof (*hdr));
- memcpy(hdr, loghandle->lgh_hdr, sizeof(*hdr));
-
-out_close:
- rc2 = llog_close(loghandle);
- if (!rc)
- rc = rc2;
-
-out_pop:
- pop_ctxt(&saved, ctxt->loc_lvfs_ctxt, NULL);
-
-out:
- RETURN(rc);
-}
-
-int llog_origin_handle_close(struct ptlrpc_request *req)
-{
- int rc;
-
- rc = 0;
-
- RETURN(rc);
-}
-
-int llog_origin_handle_cancel(struct ptlrpc_request *req)
-{
- struct obd_device *obd = req->rq_export->exp_obd;
- struct llog_cookie *logcookies;
- struct llog_ctxt *ctxt;
- int num_cookies, rc = 0, err, i;
- struct lvfs_run_ctxt saved;
- struct llog_handle *cathandle;
- struct inode *inode;
- void *handle;
- ENTRY;
-
- logcookies = lustre_msg_buf(req->rq_reqmsg, 0, sizeof(*logcookies));
- num_cookies = req->rq_reqmsg->buflens[0]/sizeof(*logcookies);
- if (logcookies == NULL || num_cookies == 0) {
- DEBUG_REQ(D_HA, req, "no cookies sent");
- RETURN(-EFAULT);
- }
-
- ctxt = llog_get_context(&obd->obd_llogs, logcookies->lgc_subsys);
- if (ctxt == NULL) {
- CWARN("llog subsys not setup or already cleanup\n");
- RETURN(-ENOENT);
- }
-
- push_ctxt(&saved, ctxt->loc_lvfs_ctxt, NULL);
- for (i = 0; i < num_cookies; i++, logcookies++) {
- cathandle = ctxt->loc_handle;
- LASSERT(cathandle != NULL);
- inode = cathandle->lgh_file->f_dentry->d_inode;
-
- handle = llog_fsfilt_start(ctxt, inode,
- FSFILT_OP_CANCEL_UNLINK, NULL);
- if (IS_ERR(handle)) {
- CERROR("fsfilt_start failed: %ld\n", PTR_ERR(handle));
- GOTO(pop_ctxt, rc = PTR_ERR(handle));
- }
-
- rc = llog_cat_cancel_records(cathandle, 1, logcookies);
-
- err = llog_fsfilt_commit(ctxt, inode, handle, 0);
- if (err) {
- CERROR("error committing transaction: %d\n", err);
- if (!rc)
- rc = err;
- GOTO(pop_ctxt, rc);
- }
- }
-pop_ctxt:
- pop_ctxt(&saved, ctxt->loc_lvfs_ctxt, NULL);
- if (rc)
- CERROR("cancel %d llog-records failed: %d\n", num_cookies, rc);
- else
- CDEBUG(D_HA, "cancel %d llog-records\n", num_cookies);
-
- RETURN(rc);
-}
-EXPORT_SYMBOL(llog_origin_handle_cancel);
-
-static int llog_catinfo_config(struct obd_device *obd, char *buf, int buf_len,
- char *client)
-{
- struct mds_obd *mds = &obd->u.mds;
- struct llog_ctxt *ctxt;
- struct lvfs_run_ctxt saved;
- struct llog_handle *handle = NULL;
- char name[4][64];
- int rc, i, l, remains = buf_len;
- char *out = buf;
-
- ctxt = llog_get_context(&obd->obd_llogs, LLOG_CONFIG_ORIG_CTXT);
- if (ctxt == NULL || mds == NULL)
- RETURN(-EOPNOTSUPP);
-
- push_ctxt(&saved, ctxt->loc_lvfs_ctxt, NULL);
-
- sprintf(name[0], "%s", mds->mds_profile);
- sprintf(name[1], "%s-clean", mds->mds_profile);
- sprintf(name[2], "%s", client);
- sprintf(name[3], "%s-clean", client);
-
- for (i = 0; i < 4; i++) {
- int index, uncanceled = 0;
- rc = llog_open(ctxt, &handle, NULL, name[i], 0);
- if (rc)
- GOTO(out_pop, rc);
- rc = llog_init_handle(handle, 0, NULL);
- if (rc) {
- llog_close(handle);
- GOTO(out_pop, rc = -ENOENT);
- }
-
- for (index = 1; index < (LLOG_BITMAP_BYTES * 8); index ++) {
- if (ext2_test_bit(index, handle->lgh_hdr->llh_bitmap))
- uncanceled++;
- }
-
- l = snprintf(out, remains, "[Log Name]: %s\nLog Size: %llu\n"
- "Last Index: %d\nUncanceled Records: %d\n\n",
- name[i],
- handle->lgh_file->f_dentry->d_inode->i_size,
- handle->lgh_last_idx, uncanceled);
- out += l;
- remains -= l;
-
- llog_close(handle);
- if (remains <= 0)
- break;
- }
-out_pop:
- pop_ctxt(&saved, ctxt->loc_lvfs_ctxt, NULL);
- RETURN(rc);
-}
-
-struct cb_data {
- struct llog_ctxt *ctxt;
- char *out;
- int remains;
- int init;
-};
-
-static int llog_catinfo_cb(struct llog_handle *cat,
- struct llog_rec_hdr *rec, void *data)
+int llog_origin_handle_prev_block(struct ptlrpc_request *req)
{
- static char *out = NULL;
- static int remains = 0;
- struct llog_ctxt *ctxt;
- struct llog_handle *handle;
- struct llog_logid *logid;
- struct llog_logid_rec *lir;
- int l, rc, index, count = 0;
- struct cb_data *cbd = (struct cb_data*)data;
-
- if (cbd->init) {
- out = cbd->out;
- remains = cbd->remains;
- cbd->init = 0;
- }
- ctxt = cbd->ctxt;
-
- if (!(cat->lgh_hdr->llh_flags & LLOG_F_IS_CAT))
- RETURN(-EINVAL);
-
- lir = (struct llog_logid_rec *)rec;
- logid = &lir->lid_id;
- rc = llog_open(ctxt, &handle, logid, NULL, 0);
- if (rc)
- RETURN(-EINVAL);
- rc = llog_init_handle(handle, 0, NULL);
- if (rc)
- GOTO(out_close, rc);
-
- for (index = 1; index < (LLOG_BITMAP_BYTES * 8); index++) {
- if (ext2_test_bit(index, handle->lgh_hdr->llh_bitmap))
- count++;
- }
-
- l = snprintf(out, remains, "\t[Log ID]: #"LPX64"#"LPX64"#%08x\n"
- "\tLog Size: %llu\n\tLast Index: %d\n"
- "\tUncanceled Records: %d\n",
- logid->lgl_oid, logid->lgl_ogr, logid->lgl_ogen,
- handle->lgh_file->f_dentry->d_inode->i_size,
- handle->lgh_last_idx, count);
- out += l;
- remains -= l;
- cbd->out = out;
- cbd->remains = remains;
- if (remains <= 0) {
- CWARN("Not enough memory\n");
- rc = -ENOMEM;
- }
-
+ struct llog_handle *loghandle;
+ struct llogd_body *body;
+ struct llogd_body *repbody;
+ struct llog_ctxt *ctxt;
+ __u32 flags;
+ void *ptr;
+ int rc;
+
+ ENTRY;
+
+ body = req_capsule_client_get(&req->rq_pill, &RMF_LLOGD_BODY);
+ if (body == NULL)
+ RETURN(err_serious(-EFAULT));
+
+ req_capsule_set_size(&req->rq_pill, &RMF_EADATA, RCL_SERVER,
+ LLOG_MIN_CHUNK_SIZE);
+ rc = req_capsule_server_pack(&req->rq_pill);
+ if (rc)
+ RETURN(err_serious(-ENOMEM));
+
+ if (body->lgd_ctxt_idx >= LLOG_MAX_CTXTS) {
+ CDEBUG(D_WARNING, "%s: bad ctxt ID: idx=%d\n",
+ req->rq_export->exp_obd->obd_name, body->lgd_ctxt_idx);
+ RETURN(-EPROTO);
+ }
+
+ ctxt = llog_get_context(req->rq_export->exp_obd, body->lgd_ctxt_idx);
+ if (ctxt == NULL)
+ RETURN(-ENODEV);
+
+ rc = llog_open(req->rq_svc_thread->t_env, ctxt, &loghandle,
+ &body->lgd_logid, NULL, LLOG_OPEN_EXISTS);
+ if (rc)
+ GOTO(out_ctxt, rc);
+
+ flags = body->lgd_llh_flags;
+ rc = llog_init_handle(req->rq_svc_thread->t_env, loghandle, flags,
+ NULL);
+ if (rc)
+ GOTO(out_close, rc);
+
+ repbody = req_capsule_server_get(&req->rq_pill, &RMF_LLOGD_BODY);
+ *repbody = *body;
+
+ ptr = req_capsule_server_get(&req->rq_pill, &RMF_EADATA);
+ rc = llog_prev_block(req->rq_svc_thread->t_env, loghandle,
+ body->lgd_index, ptr, LLOG_MIN_CHUNK_SIZE);
+ if (rc)
+ GOTO(out_close, rc);
+
+ EXIT;
out_close:
- llog_close(handle);
- RETURN(rc);
-}
-
-static int llog_catinfo_deletions(struct obd_device *obd, char *buf,
- int buf_len)
-{
- struct mds_obd *mds = &obd->u.mds;
- struct llog_handle *handle;
- struct lvfs_run_ctxt saved;
- int size, i, count;
- struct llog_catid *idarray;
- struct llog_logid *id;
- char name[32] = CATLIST;
- int rc;
- struct cb_data data;
- struct llog_ctxt *ctxt = llog_get_context(&obd->obd_llogs,
- LLOG_CONFIG_ORIG_CTXT);
-
- if (ctxt == NULL || mds == NULL)
- RETURN(-EOPNOTSUPP);
-
- count = mds->mds_lov_desc.ld_tgt_count;
- size = sizeof(*idarray) * count;
-
- OBD_ALLOC(idarray, size);
- if (!idarray)
- RETURN(-ENOMEM);
-
- rc = llog_get_cat_list(&obd->obd_lvfs_ctxt, obd->obd_fsops,
- name, count, idarray);
- if (rc)
- GOTO(out_free, rc);
-
- push_ctxt(&saved, ctxt->loc_lvfs_ctxt, NULL);
-
- data.ctxt = ctxt;
- data.out = buf;
- data.remains = buf_len;
- for (i = 0; i < count; i++) {
- int l, index, uncanceled = 0;
-
- id = &idarray[i].lci_logid;
- rc = llog_open(ctxt, &handle, id, NULL, 0);
- if (rc)
- GOTO(out_pop, rc);
- rc = llog_init_handle(handle, 0, NULL);
- if (rc) {
- llog_close(handle);
- GOTO(out_pop, rc = -ENOENT);
- }
- for (index = 1; index < (LLOG_BITMAP_BYTES * 8); index++) {
- if (ext2_test_bit(index, handle->lgh_hdr->llh_bitmap))
- uncanceled++;
- }
- l = snprintf(data.out, data.remains,
- "\n[Catlog ID]: #"LPX64"#"LPX64"#%08x "
- "[Log Count]: %d\n",
- id->lgl_oid, id->lgl_ogr, id->lgl_ogen,
- uncanceled);
-
- data.out += l;
- data.remains -= l;
- data.init = 1;
-
- llog_process(handle, llog_catinfo_cb, &data, NULL);
- llog_close(handle);
-
- if (data.remains <= 0)
- break;
- }
-out_pop:
- pop_ctxt(&saved, ctxt->loc_lvfs_ctxt, NULL);
-out_free:
- OBD_FREE(idarray, size);
- RETURN(rc);
-}
-
-int llog_catinfo(struct ptlrpc_request *req)
-{
- struct obd_export *exp = req->rq_export;
- struct obd_device *obd = exp->exp_obd;
- char *keyword;
- char *buf, *reply;
- int rc, buf_len = LLOG_CHUNK_SIZE;
-
- OBD_ALLOC(buf, buf_len);
- if (buf == NULL)
- return -ENOMEM;
- memset(buf, 0, buf_len);
-
- keyword = lustre_msg_string(req->rq_reqmsg, 0, 0);
-
- if (strcmp(keyword, "config") == 0) {
- char *client = lustre_msg_string(req->rq_reqmsg, 1, 0);
- rc = llog_catinfo_config(obd, buf, buf_len, client);
- } else if (strcmp(keyword, "deletions") == 0) {
- rc = llog_catinfo_deletions(obd, buf, buf_len);
- } else {
- rc = -EOPNOTSUPP;
- }
-
- rc = lustre_pack_reply(req, 1, &buf_len, NULL);
- if (rc)
- GOTO(out_free, rc = -ENOMEM);
-
- reply = lustre_msg_buf(req->rq_repmsg, 0, buf_len);
- if (strlen(buf) == 0)
- sprintf(buf, "%s", "No log informations\n");
- memcpy(reply, buf, buf_len);
-
-out_free:
- OBD_FREE(buf, buf_len);
- return rc;
+ llog_origin_close(req->rq_svc_thread->t_env, loghandle);
+out_ctxt:
+ llog_ctxt_put(ctxt);
+ return rc;
}
-#else /* !__KERNEL__ */
-int llog_origin_handle_open(struct ptlrpc_request *req)
-{
- LBUG();
- return 0;
-}
-int llog_origin_handle_prev_block(struct ptlrpc_request *req)
-{
- LBUG();
- return 0;
-}
-int llog_origin_handle_next_block(struct ptlrpc_request *req)
-{
- LBUG();
- return 0;
-}
int llog_origin_handle_read_header(struct ptlrpc_request *req)
{
- LBUG();
- return 0;
-}
-int llog_origin_handle_close(struct ptlrpc_request *req)
-{
- LBUG();
- return 0;
-}
-int llog_origin_handle_cancel(struct ptlrpc_request *req)
-{
- LBUG();
- return 0;
+ struct llog_handle *loghandle;
+ struct llogd_body *body;
+ struct llog_log_hdr *hdr;
+ struct llog_ctxt *ctxt;
+ __u32 flags;
+ int rc;
+
+ ENTRY;
+
+ body = req_capsule_client_get(&req->rq_pill, &RMF_LLOGD_BODY);
+ if (body == NULL)
+ RETURN(err_serious(-EFAULT));
+
+ rc = req_capsule_server_pack(&req->rq_pill);
+ if (rc)
+ RETURN(err_serious(-ENOMEM));
+
+ if (body->lgd_ctxt_idx >= LLOG_MAX_CTXTS) {
+ CDEBUG(D_WARNING, "%s: bad ctxt ID: idx=%d\n",
+ req->rq_export->exp_obd->obd_name, body->lgd_ctxt_idx);
+ RETURN(-EPROTO);
+ }
+
+ ctxt = llog_get_context(req->rq_export->exp_obd, body->lgd_ctxt_idx);
+ if (ctxt == NULL)
+ RETURN(-ENODEV);
+
+ rc = llog_open(req->rq_svc_thread->t_env, ctxt, &loghandle,
+ &body->lgd_logid, NULL, LLOG_OPEN_EXISTS);
+ if (rc)
+ GOTO(out_ctxt, rc);
+
+ /*
+ * llog_init_handle() reads the llog header
+ */
+ flags = body->lgd_llh_flags;
+ rc = llog_init_handle(req->rq_svc_thread->t_env, loghandle, flags,
+ NULL);
+ if (rc)
+ GOTO(out_close, rc);
+ flags = loghandle->lgh_hdr->llh_flags;
+
+ hdr = req_capsule_server_get(&req->rq_pill, &RMF_LLOG_LOG_HDR);
+ *hdr = *loghandle->lgh_hdr;
+ EXIT;
+out_close:
+ llog_origin_close(req->rq_svc_thread->t_env, loghandle);
+out_ctxt:
+ llog_ctxt_put(ctxt);
+ return rc;
}
-#endif
git://git.whamcloud.com / fs / lustre-release.git / blobdiff