X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lustre%2Fptlrpc%2Fllog_server.c;h=7a25f55fc9bd27809d9ea485d37edc70c9ff238f;hb=6e3ec5812ebd1b5ecf7cae584f429b013ffe7431;hp=742b54588de25c1f7f88a2b6ec29099f7bd31a95;hpb=c5050e412572b00cbe93d8517d2d1f767bebfa92;p=fs%2Flustre-release.git diff --git a/lustre/ptlrpc/llog_server.c b/lustre/ptlrpc/llog_server.c index 742b545..7a25f55 100644 --- a/lustre/ptlrpc/llog_server.c +++ b/lustre/ptlrpc/llog_server.c @@ -1,26 +1,43 @@ /* -*- 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 + * GPL HEADER START * - * This file is part of Lustre, http://www.lustre.org. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * - * 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 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 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. + * 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). * - * 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. + * You should have received a copy of the GNU General Public License + * version 2 along with this program; If not, see + * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf * - * remote api for llog - server side + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. * + * GPL HEADER END + */ +/* + * Copyright 2008 Sun Microsystems, Inc. All rights reserved + * Use is subject to license terms. + */ +/* + * 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 + * + * Author: Andreas Dilger */ #define DEBUG_SUBSYSTEM S_LOG @@ -29,103 +46,162 @@ #define EXPORT_SYMTAB #endif -#include -#include -#include -#include -#include +#ifndef __KERNEL__ +#include +#endif + +#include +#include +#include +#include +#include + +#if defined(__KERNEL__) && defined(LUSTRE_LOG_SERVER) int llog_origin_handle_create(struct ptlrpc_request *req) { - struct obd_export *exp = req->rq_export; - struct obd_device *obd = exp->exp_obd; - struct obd_device *disk_obd; - struct llog_handle *loghandle; - struct llogd_body *body; - struct obd_run_ctxt saved; - struct llog_logid *logid = NULL; - struct llog_ctxt *ctxt; - char * name = NULL; - int size = sizeof (*body); - int rc, rc2; + struct obd_export *exp = req->rq_export; + struct obd_device *obd = exp->exp_obd; + struct obd_device *disk_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; 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); - } + body = req_capsule_client_get(&req->rq_pill, &RMF_LLOGD_BODY); + if (body == NULL) + RETURN(-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); - } + 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); } ctxt = llog_get_context(obd, body->lgd_ctxt_idx); - LASSERT(ctxt != NULL); + 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); + } disk_obd = ctxt->loc_exp->exp_obd; - push_ctxt(&saved, &disk_obd->obd_ctxt, NULL); + push_ctxt(&saved, &disk_obd->obd_lvfs_ctxt, NULL); rc = llog_create(ctxt, &loghandle, logid, name); if (rc) GOTO(out_pop, rc); - rc = lustre_pack_reply(req, 1, &size, NULL); + rc = req_capsule_server_pack(&req->rq_pill); if (rc) GOTO(out_close, rc = -ENOMEM); - body = lustre_msg_buf(req->rq_repmsg, 0, sizeof (*body)); + body = req_capsule_server_get(&req->rq_pill, &RMF_LLOGD_BODY); body->lgd_logid = loghandle->lgh_id; + GOTO(out_close, rc); out_close: rc2 = llog_close(loghandle); if (!rc) rc = rc2; out_pop: - pop_ctxt(&saved, &disk_obd->obd_ctxt, NULL); -out: - RETURN(rc); + pop_ctxt(&saved, &disk_obd->obd_lvfs_ctxt, NULL); + llog_ctxt_put(ctxt); + return rc; +} + +int llog_origin_handle_destroy(struct ptlrpc_request *req) +{ + struct obd_export *exp = req->rq_export; + struct obd_device *obd = exp->exp_obd; + struct obd_device *disk_obd; + struct llog_handle *loghandle; + struct llogd_body *body; + struct lvfs_run_ctxt saved; + struct llog_logid *logid = NULL; + struct llog_ctxt *ctxt; + __u32 flags; + int rc; + ENTRY; + + body = req_capsule_client_get(&req->rq_pill, &RMF_LLOGD_BODY); + if (body == NULL) + RETURN(-EFAULT); + + if (body->lgd_logid.lgl_oid > 0) + logid = &body->lgd_logid; + + ctxt = llog_get_context(obd, body->lgd_ctxt_idx); + if (ctxt == NULL) + RETURN(-ENODEV); + + disk_obd = ctxt->loc_exp->exp_obd; + push_ctxt(&saved, &disk_obd->obd_lvfs_ctxt, NULL); + + rc = llog_create(ctxt, &loghandle, logid, NULL); + if (rc) + GOTO(out_pop, rc); + + rc = req_capsule_server_pack(&req->rq_pill); + if (rc) + GOTO(out_close, rc = -ENOMEM); + + body = req_capsule_server_get(&req->rq_pill, &RMF_LLOGD_BODY); + body->lgd_logid = loghandle->lgh_id; + flags = body->lgd_llh_flags; + rc = llog_init_handle(loghandle, LLOG_F_IS_PLAIN, NULL); + if (rc) + GOTO(out_close, rc); + rc = llog_destroy(loghandle); + if (rc) + GOTO(out_close, rc); + llog_free_handle(loghandle); + GOTO(out_close, rc); +out_close: + if (rc) + llog_close(loghandle); +out_pop: + pop_ctxt(&saved, &disk_obd->obd_lvfs_ctxt, NULL); + 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 obd_device *disk_obd; + struct obd_export *exp = req->rq_export; + struct obd_device *obd = exp->exp_obd; + struct obd_device *disk_obd; struct llog_handle *loghandle; - struct llogd_body *body; - struct obd_run_ctxt saved; - struct llog_ctxt *ctxt; - __u32 flags; - __u8 *buf; - void * ptr; - int size[] = {sizeof (*body), - LLOG_CHUNK_SIZE}; - int rc, rc2; + struct llogd_body *body; + struct llogd_body *repbody; + struct lvfs_run_ctxt saved; + struct llog_ctxt *ctxt; + __u32 flags; + __u8 *buf; + void *ptr; + 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); - } + body = req_capsule_client_get(&req->rq_pill, &RMF_LLOGD_BODY); + if (body == NULL) + RETURN(-EFAULT); OBD_ALLOC(buf, LLOG_CHUNK_SIZE); if (!buf) - GOTO(out, rc = -ENOMEM); + RETURN(-ENOMEM); ctxt = llog_get_context(obd, body->lgd_ctxt_idx); - LASSERT(ctxt != NULL); + if (ctxt == NULL) + GOTO(out_free, rc = -ENODEV); disk_obd = ctxt->loc_exp->exp_obd; - push_ctxt(&saved, &disk_obd->obd_ctxt, NULL); + push_ctxt(&saved, &disk_obd->obd_lvfs_ctxt, NULL); rc = llog_create(ctxt, &loghandle, &body->lgd_logid, NULL); if (rc) @@ -143,141 +219,527 @@ int llog_origin_handle_next_block(struct ptlrpc_request *req) if (rc) GOTO(out_close, rc); - - rc = lustre_pack_reply(req, 2, size, NULL); + req_capsule_set_size(&req->rq_pill, &RMF_EADATA, RCL_SERVER, + LLOG_CHUNK_SIZE); + rc = req_capsule_server_pack(&req->rq_pill); if (rc) GOTO(out_close, rc = -ENOMEM); - ptr = lustre_msg_buf(req->rq_repmsg, 0, sizeof (body)); - memcpy(ptr, body, sizeof(*body)); + repbody = req_capsule_server_get(&req->rq_pill, &RMF_LLOGD_BODY); + *repbody = *body; - ptr = lustre_msg_buf(req->rq_repmsg, 1, LLOG_CHUNK_SIZE); + ptr = req_capsule_server_get(&req->rq_pill, &RMF_EADATA); memcpy(ptr, buf, LLOG_CHUNK_SIZE); - + GOTO(out_close, rc); out_close: rc2 = llog_close(loghandle); if (!rc) rc = rc2; - out_pop: - pop_ctxt(&saved, &disk_obd->obd_ctxt, NULL); + pop_ctxt(&saved, &disk_obd->obd_lvfs_ctxt, NULL); + llog_ctxt_put(ctxt); +out_free: OBD_FREE(buf, LLOG_CHUNK_SIZE); -out: - RETURN(rc); + return rc; } -int llog_origin_handle_read_header(struct ptlrpc_request *req) +int llog_origin_handle_prev_block(struct ptlrpc_request *req) { - struct obd_export *exp = req->rq_export; - struct obd_device *obd = exp->exp_obd; - struct obd_device *disk_obd; - struct llog_handle *loghandle; - struct llogd_body *body; - struct llog_log_hdr *hdr; - struct obd_run_ctxt saved; - struct llog_ctxt *ctxt; - __u32 flags; - __u8 *buf; - int size[] = {sizeof (*hdr)}; - int rc, rc2; + struct obd_export *exp = req->rq_export; + struct obd_device *obd = exp->exp_obd; + struct llog_handle *loghandle; + struct llogd_body *body; + struct llogd_body *repbody; + struct obd_device *disk_obd; + struct lvfs_run_ctxt saved; + struct llog_ctxt *ctxt; + __u32 flags; + __u8 *buf; + void *ptr; + 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); - } + body = req_capsule_client_get(&req->rq_pill, &RMF_LLOGD_BODY); + if (body == NULL) + RETURN(-EFAULT); OBD_ALLOC(buf, LLOG_CHUNK_SIZE); if (!buf) - GOTO(out, rc = -ENOMEM); + RETURN(-ENOMEM); ctxt = llog_get_context(obd, body->lgd_ctxt_idx); - LASSERT(ctxt != NULL); + if (ctxt == NULL) + GOTO(out_free, rc = -ENODEV); + disk_obd = ctxt->loc_exp->exp_obd; - push_ctxt(&saved, &disk_obd->obd_ctxt, NULL); + push_ctxt(&saved, &disk_obd->obd_lvfs_ctxt, NULL); rc = llog_create(ctxt, &loghandle, &body->lgd_logid, NULL); 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); + 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, 1, size, NULL); + req_capsule_set_size(&req->rq_pill, &RMF_EADATA, RCL_SERVER, + LLOG_CHUNK_SIZE); + rc = req_capsule_server_pack(&req->rq_pill); if (rc) GOTO(out_close, rc = -ENOMEM); - hdr = lustre_msg_buf(req->rq_repmsg, 0, sizeof (*hdr)); - memcpy(hdr, loghandle->lgh_hdr, sizeof(*hdr)); + repbody = req_capsule_server_get(&req->rq_pill, &RMF_LLOGD_BODY); + *repbody = *body; + ptr = req_capsule_server_get(&req->rq_pill, &RMF_EADATA); + memcpy(ptr, buf, LLOG_CHUNK_SIZE); + GOTO(out_close, rc); out_close: rc2 = llog_close(loghandle); if (!rc) rc = rc2; out_pop: - pop_ctxt(&saved, &disk_obd->obd_ctxt, NULL); + pop_ctxt(&saved, &disk_obd->obd_lvfs_ctxt, NULL); + llog_ctxt_put(ctxt); +out_free: OBD_FREE(buf, LLOG_CHUNK_SIZE); - -out: - RETURN(rc); + return rc; } -int llog_origin_handle_close(struct ptlrpc_request *req) +int llog_origin_handle_read_header(struct ptlrpc_request *req) { - int rc; + struct obd_export *exp = req->rq_export; + struct obd_device *obd = exp->exp_obd; + struct obd_device *disk_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 rc, rc2; + ENTRY; + + body = req_capsule_client_get(&req->rq_pill, &RMF_LLOGD_BODY); + if (body == NULL) + RETURN(-EFAULT); + + ctxt = llog_get_context(obd, body->lgd_ctxt_idx); + if (ctxt == NULL) + RETURN(-ENODEV); + + disk_obd = ctxt->loc_exp->exp_obd; + push_ctxt(&saved, &disk_obd->obd_lvfs_ctxt, NULL); + + rc = llog_create(ctxt, &loghandle, &body->lgd_logid, NULL); + if (rc) + GOTO(out_pop, rc); + + /* + * llog_init_handle() reads the llog header + */ + flags = body->lgd_llh_flags; + rc = llog_init_handle(loghandle, flags, NULL); + if (rc) + GOTO(out_close, rc); - rc = 0; + rc = req_capsule_server_pack(&req->rq_pill); + if (rc) + GOTO(out_close, rc = -ENOMEM); - RETURN(rc); + hdr = req_capsule_server_get(&req->rq_pill, &RMF_LLOG_LOG_HDR); + *hdr = *loghandle->lgh_hdr; + GOTO(out_close, rc); +out_close: + rc2 = llog_close(loghandle); + if (!rc) + rc = rc2; +out_pop: + pop_ctxt(&saved, &disk_obd->obd_lvfs_ctxt, NULL); + llog_ctxt_put(ctxt); + return rc; +} + +int llog_origin_handle_close(struct ptlrpc_request *req) +{ + ENTRY; + /* Nothing to do */ + RETURN(0); } -#ifdef ENABLE_ORPHANS int llog_origin_handle_cancel(struct ptlrpc_request *req) { struct obd_device *obd = req->rq_export->exp_obd; + int num_cookies, rc = 0, err, i, failed = 0; struct obd_device *disk_obd; struct llog_cookie *logcookies; - struct llog_ctxt *ctxt; - int num_cookies, rc = 0; - struct obd_run_ctxt saved; + struct llog_ctxt *ctxt = NULL; + 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); + logcookies = req_capsule_client_get(&req->rq_pill, &RMF_LOGCOOKIES); + num_cookies = req_capsule_get_size(&req->rq_pill, &RMF_LOGCOOKIES, + RCL_CLIENT) / sizeof(*logcookies); if (logcookies == NULL || num_cookies == 0) { - DEBUG_REQ(D_HA, req, "no cookies sent"); + DEBUG_REQ(D_HA, req, "No llog cookies sent"); RETURN(-EFAULT); } ctxt = llog_get_context(obd, logcookies->lgc_subsys); - if (ctxt == NULL) { - CWARN("llog subsys not setup or already cleanup\n"); - RETURN(-ENOENT); - } - down(&ctxt->loc_sem); + if (ctxt == NULL) + RETURN(-ENODEV); + disk_obd = ctxt->loc_exp->exp_obd; - cathandle = ctxt->loc_handle; - LASSERT(cathandle); + push_ctxt(&saved, &disk_obd->obd_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 = fsfilt_start_log(disk_obd, inode, + FSFILT_OP_CANCEL_UNLINK, NULL, 1); + if (IS_ERR(handle)) { + CERROR("fsfilt_start_log() failed: %ld\n", + PTR_ERR(handle)); + GOTO(pop_ctxt, rc = PTR_ERR(handle)); + } - push_ctxt(&saved, &disk_obd->obd_ctxt, NULL); - rc = llog_cat_cancel_records(cathandle, num_cookies, logcookies); - if (rc) - CERROR("cancel %d llog-records failed: %d\n", num_cookies, rc); - else - CWARN("cancel %d llog-records\n", num_cookies); + rc = llog_cat_cancel_records(cathandle, 1, logcookies); + + /* + * Do not raise -ENOENT errors for resent rpcs. This rec already + * might be killed. + */ + if (rc == -ENOENT && + (lustre_msg_get_flags(req->rq_reqmsg) & MSG_RESENT)) { + /* + * Do not change this message, reply-single.sh test_59b + * expects to find this in log. + */ + CDEBUG(D_RPCTRACE, "RESENT cancel req %p - ignored\n", + req); + rc = 0; + } else if (rc == 0) { + CDEBUG(D_RPCTRACE, "Canceled %d llog-records\n", + num_cookies); + } - pop_ctxt(&saved, &disk_obd->obd_ctxt, NULL); - up(&ctxt->loc_sem); + err = fsfilt_commit(disk_obd, inode, handle, 0); + if (err) { + CERROR("Error committing transaction: %d\n", err); + if (!rc) + rc = err; + failed++; + GOTO(pop_ctxt, rc); + } else if (rc) + failed++; + } + GOTO(pop_ctxt, rc); +pop_ctxt: + pop_ctxt(&saved, &disk_obd->obd_lvfs_ctxt, NULL); + if (rc) + CERROR("Cancel %d of %d llog-records failed: %d\n", + failed, num_cookies, rc); - RETURN(rc); + llog_ctxt_put(ctxt); + 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 = llog_get_context(obd, LLOG_CONFIG_ORIG_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; + ENTRY; + + if (ctxt == NULL || mds == NULL) + GOTO(release_ctxt, rc = -ENODEV); + + push_ctxt(&saved, &ctxt->loc_exp->exp_obd->obd_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_create(ctxt, &handle, NULL, name[i]); + 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], + i_size_read(handle->lgh_file->f_dentry->d_inode), + handle->lgh_last_idx, uncanceled); + out += l; + remains -= l; + + llog_close(handle); + if (remains <= 0) + break; + } + GOTO(out_pop, rc); +out_pop: + pop_ctxt(&saved, &ctxt->loc_exp->exp_obd->obd_lvfs_ctxt, NULL); +release_ctxt: + llog_ctxt_put(ctxt); + 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) +{ + static char *out = NULL; + static int remains = 0; + struct llog_ctxt *ctxt = NULL; + 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; + ENTRY; + + if (cbd->init) { + out = cbd->out; + remains = cbd->remains; + cbd->init = 0; + } + + if (!(cat->lgh_hdr->llh_flags & LLOG_F_IS_CAT)) + RETURN(-EINVAL); + + if (!cbd->ctxt) + RETURN(-ENODEV); + + lir = (struct llog_logid_rec *)rec; + logid = &lir->lid_id; + rc = llog_create(ctxt, &handle, logid, NULL); + 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, + i_size_read(handle->lgh_file->f_dentry->d_inode), + 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; + } + 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; + char name[32] = CATLIST; + struct cb_data data; + struct llog_ctxt *ctxt = llog_get_context(obd, LLOG_CONFIG_ORIG_CTXT); + int rc; + ENTRY; + + if (ctxt == NULL || mds == NULL) + GOTO(release_ctxt, rc = -ENODEV); + + count = mds->mds_lov_desc.ld_tgt_count; + size = sizeof(*idarray) * count; + + OBD_VMALLOC(idarray, size); + if (!idarray) + GOTO(release_ctxt, rc = -ENOMEM); + + cfs_mutex_down(&obd->obd_olg.olg_cat_processing); + rc = llog_get_cat_list(obd, name, 0, count, idarray); + if (rc) + GOTO(out_free, rc); + + push_ctxt(&saved, &ctxt->loc_exp->exp_obd->obd_lvfs_ctxt, NULL); + + data.ctxt = ctxt; + data.out = buf; + data.remains = buf_len; + for (i = 0; i < count; i++) { + int l, index, uncanceled = 0; + + rc = llog_create(ctxt, &handle, &idarray[i].lci_logid, NULL); + 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", + idarray[i].lci_logid.lgl_oid, + idarray[i].lci_logid.lgl_ogr, + idarray[i].lci_logid.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; + } + EXIT; +out_pop: + pop_ctxt(&saved, &ctxt->loc_exp->exp_obd->obd_lvfs_ctxt, NULL); +out_free: + cfs_mutex_up(&obd->obd_olg.olg_cat_processing); + OBD_VFREE(idarray, size); +release_ctxt: + llog_ctxt_put(ctxt); + 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; + ENTRY; + + OBD_ALLOC(buf, LLOG_CHUNK_SIZE); + if (buf == NULL) + RETURN(-ENOMEM); + + memset(buf, 0, LLOG_CHUNK_SIZE); + + keyword = req_capsule_client_get(&req->rq_pill, &RMF_NAME); + LASSERT(keyword); + + if (strcmp(keyword, "config") == 0) { + char *client = req_capsule_client_get(&req->rq_pill, + &RMF_STRING); + + LASSERT(client); + rc = llog_catinfo_config(obd, buf, LLOG_CHUNK_SIZE, client); + } else if (strcmp(keyword, "deletions") == 0) { + rc = llog_catinfo_deletions(obd, buf, LLOG_CHUNK_SIZE); + } else { + rc = -EOPNOTSUPP; + } + + req_capsule_set_size(&req->rq_pill, &RMF_STRING, RCL_SERVER, + LLOG_CHUNK_SIZE); + rc = req_capsule_server_pack(&req->rq_pill); + if (rc) + GOTO(out_free, rc = -ENOMEM); + + reply = req_capsule_server_get(&req->rq_pill, &RMF_STRING); + if (strlen(buf) == 0) + sprintf(buf, "%s", "No log informations\n"); + memcpy(reply, buf, LLOG_CHUNK_SIZE); + EXIT; +out_free: + OBD_FREE(buf, LLOG_CHUNK_SIZE); + return rc; +} + +#else /* !__KERNEL__ */ +int llog_origin_handle_create(struct ptlrpc_request *req) +{ + LBUG(); + return 0; +} + +int llog_origin_handle_destroy(struct ptlrpc_request *req) +{ + LBUG(); + return 0; +} + +int llog_origin_handle_next_block(struct ptlrpc_request *req) +{ + LBUG(); + return 0; +} +int llog_origin_handle_prev_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; +} #endif