X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lustre%2Fobdclass%2Fllog_obd.c;h=ded9dc633dc6ee7c2881f9c7b5f2d228cafc73bf;hb=369e02e84f39565195e08f043ab0421d2d3bd185;hp=259bcbce25c4446058c948c003f8cad04d20e541;hpb=fbb7ead129258897f5a5d5c9ce28d31fbbe5bca2;p=fs%2Flustre-release.git diff --git a/lustre/obdclass/llog_obd.c b/lustre/obdclass/llog_obd.c index 259bcbc..ded9dc6 100644 --- a/lustre/obdclass/llog_obd.c +++ b/lustre/obdclass/llog_obd.c @@ -1,242 +1,322 @@ - -/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*- - * vim:expandtab:shiftwidth=8:tabstop=8: +/* + * GPL HEADER START + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * 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. + * + * 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 + * version 2 along with this program; If not, see + * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf + * + * 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. * - * 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) 2012, 2013, Intel Corporation. + */ +/* + * This file is part of Lustre, http://www.lustre.org/ + * Lustre is a trademark of Sun Microsystems, Inc. */ #define DEBUG_SUBSYSTEM S_LOG -#ifndef EXPORT_SYMTAB -#define EXPORT_SYMTAB -#endif - -#ifdef __KERNEL__ -#include -#else +#ifndef __KERNEL__ #include #endif -#include -#include -#include -#include +#include +#include +#include "llog_internal.h" /* helper functions for calling the llog obd methods */ -int obd_llog_setup(struct obd_device *obd, struct obd_llogs *llogs, - int index, struct obd_device *disk_obd, int count, - struct llog_logid *logid, struct llog_operations *op) +static struct llog_ctxt* llog_new_ctxt(struct obd_device *obd) { struct llog_ctxt *ctxt; - int rc = 0; - ENTRY; - - LASSERT(llogs); - - if (index < 0 || index >= LLOG_MAX_CTXTS) - RETURN(-EFAULT); - OBD_ALLOC(ctxt, sizeof(*ctxt)); + OBD_ALLOC_PTR(ctxt); if (!ctxt) - RETURN(-ENOMEM); + return NULL; - llogs->llog_ctxt[index] = ctxt; - obd->obd_llog_ctxt[index] = ctxt; - ctxt->loc_logops = op; ctxt->loc_obd = obd; - ctxt->loc_llogs = llogs; - ctxt->loc_idx = index; - ctxt->loc_alone = 0; - ctxt->loc_exp = class_export_get(disk_obd->obd_self_export); - sema_init(&ctxt->loc_sem, 1); - - if (op->lop_close == llog_lvfs_ops.lop_close) { - ctxt->loc_fsops = disk_obd->obd_fsops; - ctxt->loc_lvfs_ctxt = &disk_obd->obd_lvfs_ctxt; - if (!strcmp(disk_obd->obd_type->typ_name, LUSTRE_MDS_NAME)) { - struct mds_obd *mds = &disk_obd->u.mds; - ctxt->loc_objects_dir = mds->mds_objects_dir; - ctxt->loc_logs_dir = mds->mds_logs_dir; - } else if (!strcmp(disk_obd->obd_type->typ_name, "confobd")) { - struct conf_obd *confobd = &disk_obd->u.conf; - ctxt->loc_objects_dir = confobd->cfobd_objects_dir; - ctxt->loc_logs_dir = confobd->cfobd_logs_dir; - } - } + cfs_atomic_set(&ctxt->loc_refcount, 1); - if (op->lop_setup) - rc = op->lop_setup(obd, llogs, index, disk_obd, count, logid); - if (ctxt && rc) { - obd->obd_llog_ctxt[index] = NULL; - OBD_FREE(ctxt, sizeof(*ctxt)); - } + return ctxt; +} - RETURN(rc); +static void llog_ctxt_destroy(struct llog_ctxt *ctxt) +{ + if (ctxt->loc_exp) { + class_export_put(ctxt->loc_exp); + ctxt->loc_exp = NULL; + } + if (ctxt->loc_imp) { + class_import_put(ctxt->loc_imp); + ctxt->loc_imp = NULL; + } + OBD_FREE_PTR(ctxt); } -EXPORT_SYMBOL(obd_llog_setup); -int obd_llog_cleanup(struct llog_ctxt *ctxt) +int __llog_ctxt_put(const struct lu_env *env, struct llog_ctxt *ctxt) { + struct obd_llog_group *olg = ctxt->loc_olg; + struct obd_device *obd; int rc = 0; + + spin_lock(&olg->olg_lock); + if (!cfs_atomic_dec_and_test(&ctxt->loc_refcount)) { + spin_unlock(&olg->olg_lock); + return rc; + } + olg->olg_ctxts[ctxt->loc_idx] = NULL; + spin_unlock(&olg->olg_lock); + + obd = ctxt->loc_obd; + spin_lock(&obd->obd_dev_lock); + /* sync with llog ctxt user thread */ + spin_unlock(&obd->obd_dev_lock); + + /* obd->obd_starting is needed for the case of cleanup + * in error case while obd is starting up. */ + LASSERTF(obd->obd_starting == 1 || + obd->obd_stopping == 1 || obd->obd_set_up == 0, + "wrong obd state: %d/%d/%d\n", !!obd->obd_starting, + !!obd->obd_stopping, !!obd->obd_set_up); + + /* cleanup the llog ctxt here */ + if (CTXTP(ctxt, cleanup)) + rc = CTXTP(ctxt, cleanup)(env, ctxt); + + llog_ctxt_destroy(ctxt); + wake_up(&olg->olg_waitq); + return rc; +} +EXPORT_SYMBOL(__llog_ctxt_put); + +int llog_cleanup(const struct lu_env *env, struct llog_ctxt *ctxt) +{ + struct l_wait_info lwi = LWI_INTR(LWI_ON_SIGNAL_NOOP, NULL); + struct obd_llog_group *olg; + int rc, idx; ENTRY; - if (ctxt == NULL) - RETURN(0); + LASSERT(ctxt != NULL); + LASSERT(ctxt != LP_POISON); + + olg = ctxt->loc_olg; + LASSERT(olg != NULL); + LASSERT(olg != LP_POISON); + + idx = ctxt->loc_idx; + + /* + * Banlance the ctxt get when calling llog_cleanup() + */ + LASSERT(cfs_atomic_read(&ctxt->loc_refcount) < LI_POISON); + LASSERT(cfs_atomic_read(&ctxt->loc_refcount) > 1); + llog_ctxt_put(ctxt); + + /* + * Try to free the ctxt. + */ + rc = __llog_ctxt_put(env, ctxt); + if (rc) + CERROR("Error %d while cleaning up ctxt %p\n", + rc, ctxt); + + l_wait_event(olg->olg_waitq, + llog_group_ctxt_null(olg, idx), &lwi); - if (CTXTP(ctxt, cleanup)) - rc = CTXTP(ctxt, cleanup)(ctxt); - - ctxt->loc_obd->obd_llog_ctxt[ctxt->loc_idx] = NULL; - ctxt->loc_llogs->llog_ctxt[ctxt->loc_idx] = NULL; - class_export_put(ctxt->loc_exp); - ctxt->loc_exp = NULL; - OBD_FREE(ctxt, sizeof(*ctxt)); RETURN(rc); } -EXPORT_SYMBOL(obd_llog_cleanup); +EXPORT_SYMBOL(llog_cleanup); -/* callback func for llog_process in llog_obd_origin_setup */ -static int cat_cancel_cb(struct llog_handle *cathandle, - struct llog_rec_hdr *rec, void *data) +int llog_setup(const struct lu_env *env, struct obd_device *obd, + struct obd_llog_group *olg, int index, + struct obd_device *disk_obd, struct llog_operations *op) { - struct llog_logid_rec *lir = (struct llog_logid_rec *)rec; - struct llog_handle *loghandle; - int rc; + struct llog_ctxt *ctxt; + int rc = 0; ENTRY; - if (rec->lrh_type != LLOG_LOGID_MAGIC) { - CERROR("invalid record in catalog\n"); + if (index < 0 || index >= LLOG_MAX_CTXTS) RETURN(-EINVAL); - } - CDEBUG(D_HA, "processing log "LPX64":%x at index %u of catalog "LPX64"\n", - lir->lid_id.lgl_oid, lir->lid_id.lgl_ogen, - rec->lrh_index, cathandle->lgh_id.lgl_oid); - rc = llog_cat_id2handle(cathandle, &loghandle, &lir->lid_id); + LASSERT(olg != NULL); + + ctxt = llog_new_ctxt(obd); + if (!ctxt) + RETURN(-ENOMEM); + + ctxt->loc_obd = obd; + ctxt->loc_olg = olg; + ctxt->loc_idx = index; + ctxt->loc_logops = op; + mutex_init(&ctxt->loc_mutex); + ctxt->loc_exp = class_export_get(disk_obd->obd_self_export); + ctxt->loc_flags = LLOG_CTXT_FLAG_UNINITIALIZED; + + rc = llog_group_set_ctxt(olg, ctxt, index); if (rc) { - CERROR("Cannot find handle for log "LPX64"\n", - lir->lid_id.lgl_oid); + llog_ctxt_destroy(ctxt); + if (rc == -EEXIST) { + ctxt = llog_group_get_ctxt(olg, index); + if (ctxt) { + /* + * mds_lov_update_desc() might call here multiple + * times. So if the llog is already set up then + * don't to do it again. + */ + CDEBUG(D_CONFIG, "obd %s ctxt %d already set up\n", + obd->obd_name, index); + LASSERT(ctxt->loc_olg == olg); + LASSERT(ctxt->loc_obd == obd); + LASSERT(ctxt->loc_exp == disk_obd->obd_self_export); + LASSERT(ctxt->loc_logops == op); + llog_ctxt_put(ctxt); + } + rc = 0; + } RETURN(rc); } - if (cathandle->lgh_last_idx == loghandle->u.phd.phd_cookie.lgc_index) - cathandle->u.chd.chd_current_log = loghandle; + if (op->lop_setup) { + if (OBD_FAIL_CHECK(OBD_FAIL_OBD_LLOG_SETUP)) + rc = -EOPNOTSUPP; + else + rc = op->lop_setup(env, obd, olg, index, disk_obd); + } + + if (rc) { + CERROR("%s: ctxt %d lop_setup=%p failed: rc = %d\n", + obd->obd_name, index, op->lop_setup, rc); + llog_group_clear_ctxt(olg, index); + llog_ctxt_destroy(ctxt); + } else { + CDEBUG(D_CONFIG, "obd %s ctxt %d is initialized\n", + obd->obd_name, index); + ctxt->loc_flags &= ~LLOG_CTXT_FLAG_UNINITIALIZED; + } RETURN(rc); } +EXPORT_SYMBOL(llog_setup); -/* lop_setup method for filter/osc */ -// XXX how to set exports -int llog_obd_origin_setup(struct obd_device *obd, struct obd_llogs *llogs, - int index, struct obd_device *disk_obd, int count, - struct llog_logid *logid) +int llog_sync(struct llog_ctxt *ctxt, struct obd_export *exp, int flags) { - struct llog_ctxt *ctxt; - struct llog_handle *handle; - struct lvfs_run_ctxt saved; - int rc; + int rc = 0; ENTRY; - if (count == 0) + if (!ctxt) RETURN(0); - LASSERT(count == 1); + if (CTXTP(ctxt, sync)) + rc = CTXTP(ctxt, sync)(ctxt, exp, flags); - ctxt = llog_get_context(llogs, index); - LASSERT(ctxt); - llog_gen_init(ctxt); - - if (logid->lgl_oid) { - rc = llog_open(ctxt, &handle, logid, NULL, 0); - } else { - rc = llog_open(ctxt, &handle, NULL, NULL, 0); - if (!rc) - *logid = handle->lgh_id; - } - if (rc) - RETURN(rc); - - ctxt->loc_handle = handle; - push_ctxt(&saved, &disk_obd->obd_lvfs_ctxt, NULL); - rc = llog_init_handle(handle, LLOG_F_IS_CAT, NULL); - pop_ctxt(&saved, &disk_obd->obd_lvfs_ctxt, NULL); - if (rc) - RETURN(rc); + RETURN(rc); +} +EXPORT_SYMBOL(llog_sync); - rc = llog_process(handle, (llog_cb_t)cat_cancel_cb, NULL, NULL); - if (rc) - CERROR("llog_process with cat_cancel_cb failed: %d\n", rc); +int llog_obd_add(const struct lu_env *env, struct llog_ctxt *ctxt, + struct llog_rec_hdr *rec, struct lov_stripe_md *lsm, + struct llog_cookie *logcookies, int numcookies) +{ + int raised, rc; + ENTRY; - if (ctxt && rc) { - llogs->llog_ctxt[index] = NULL; - OBD_FREE(ctxt, sizeof(*ctxt)); + if (!ctxt) { + CERROR("No ctxt\n"); + RETURN(-ENODEV); } + + if (ctxt->loc_flags & LLOG_CTXT_FLAG_UNINITIALIZED) + RETURN(-ENXIO); + + CTXT_CHECK_OP(ctxt, obd_add, -EOPNOTSUPP); + raised = cfs_cap_raised(CFS_CAP_SYS_RESOURCE); + if (!raised) + cfs_cap_raise(CFS_CAP_SYS_RESOURCE); + rc = CTXTP(ctxt, obd_add)(env, ctxt, rec, lsm, logcookies, + numcookies); + if (!raised) + cfs_cap_lower(CFS_CAP_SYS_RESOURCE); RETURN(rc); } -EXPORT_SYMBOL(llog_obd_origin_setup); +EXPORT_SYMBOL(llog_obd_add); -int obd_llog_cat_initialize(struct obd_device *obd, struct obd_llogs *llogs, - int count, const char *name) +int llog_cancel(const struct lu_env *env, struct llog_ctxt *ctxt, + struct lov_stripe_md *lsm, int count, + struct llog_cookie *cookies, int flags) { - struct llog_catid *idarray; - int size = sizeof(*idarray) * count; int rc; ENTRY; - 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) { - CERROR("rc: %d\n", rc); - GOTO(out, rc); - } - - rc = obd_llog_init(obd, llogs, obd, count, idarray); - if (rc) { - CERROR("rc: %d\n", rc); - GOTO(out, rc); - } - - rc = llog_put_cat_list(&obd->obd_lvfs_ctxt, obd->obd_fsops, - name, count, idarray); - if (rc) { - CERROR("rc: %d\n", rc); - GOTO(out, rc); + if (!ctxt) { + CERROR("No ctxt\n"); + RETURN(-ENODEV); } - out: - OBD_FREE(idarray, size); + CTXT_CHECK_OP(ctxt, cancel, -EOPNOTSUPP); + rc = CTXTP(ctxt, cancel)(env, ctxt, lsm, count, cookies, flags); RETURN(rc); } -EXPORT_SYMBOL(obd_llog_cat_initialize); +EXPORT_SYMBOL(llog_cancel); -int obd_llog_init(struct obd_device *obd, struct obd_llogs *llogs, - struct obd_device *disk_obd, int count, - struct llog_catid *logid) +int obd_llog_init(struct obd_device *obd, struct obd_llog_group *olg, + struct obd_device *disk_obd, int *index) { int rc; ENTRY; - OBD_CHECK_OP(obd, llog_init, 0); + OBD_CHECK_DT_OP(obd, llog_init, 0); OBD_COUNTER_INCREMENT(obd, llog_init); - rc = OBP(obd, llog_init)(obd, llogs, disk_obd, count, logid); + rc = OBP(obd, llog_init)(obd, olg, disk_obd, index); RETURN(rc); } EXPORT_SYMBOL(obd_llog_init); -int obd_llog_finish(struct obd_device *obd, struct obd_llogs *llogs, int count) +int obd_llog_finish(struct obd_device *obd, int count) { int rc; ENTRY; - OBD_CHECK_OP(obd, llog_finish, 0); + OBD_CHECK_DT_OP(obd, llog_finish, 0); OBD_COUNTER_INCREMENT(obd, llog_finish); - rc = OBP(obd, llog_finish)(obd, llogs, count); + rc = OBP(obd, llog_finish)(obd, count); RETURN(rc); } EXPORT_SYMBOL(obd_llog_finish); + +/* context key constructor/destructor: llog_key_init, llog_key_fini */ +LU_KEY_INIT_FINI(llog, struct llog_thread_info); +/* context key: llog_thread_key */ +LU_CONTEXT_KEY_DEFINE(llog, LCT_MD_THREAD | LCT_MG_THREAD | LCT_LOCAL); +LU_KEY_INIT_GENERIC(llog); +EXPORT_SYMBOL(llog_thread_key); + +int llog_info_init(void) +{ + llog_key_init_generic(&llog_thread_key, NULL); + lu_context_key_register(&llog_thread_key); + return 0; +} + +void llog_info_fini(void) +{ + lu_context_key_degister(&llog_thread_key); +}