-/* -*- 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.
* GPL HEADER END
*/
/*
- * Copyright 2008 Sun Microsystems, Inc. All rights reserved
+ * 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/
#define DEBUG_SUBSYSTEM S_LOG
-#ifndef EXPORT_SYMTAB
-#define EXPORT_SYMTAB
-#endif
-
-#ifndef __KERNEL__
-#include <liblustre.h>
-#endif
#include <obd_class.h>
#include <lustre_log.h>
-#include <libcfs/list.h>
#include "llog_internal.h"
/* helper functions for calling the llog obd methods */
return NULL;
ctxt->loc_obd = obd;
- atomic_set(&ctxt->loc_refcount, 1);
+ atomic_set(&ctxt->loc_refcount, 1);
return ctxt;
}
static void llog_ctxt_destroy(struct llog_ctxt *ctxt)
{
- if (ctxt->loc_exp)
+ 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);
- return;
}
-int __llog_ctxt_put(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 (!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);
+ spin_lock(&olg->olg_lock);
+ if (!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);
- obd = ctxt->loc_obd;
- spin_lock(&obd->obd_dev_lock);
- spin_unlock(&obd->obd_dev_lock); /* sync with llog ctxt user thread */
- LASSERT(obd->obd_stopping == 1 || obd->obd_set_up == 0);
/* cleanup the llog ctxt here */
if (CTXTP(ctxt, cleanup))
- rc = CTXTP(ctxt, cleanup)(ctxt);
+ rc = CTXTP(ctxt, cleanup)(env, ctxt);
- llog_ctxt_destroy(ctxt);
- wake_up(&olg->olg_waitq);
- return rc;
+ llog_ctxt_destroy(ctxt);
+ wake_up(&olg->olg_waitq);
+ return rc;
}
EXPORT_SYMBOL(__llog_ctxt_put);
-int llog_cleanup(struct llog_ctxt *ctxt)
+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) {
- CERROR("No ctxt\n");
- RETURN(-ENODEV);
- }
+ 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(atomic_read(&ctxt->loc_refcount) > 1);
+ /*
+ * Banlance the ctxt get when calling llog_cleanup()
+ */
+ LASSERT(atomic_read(&ctxt->loc_refcount) < LI_POISON);
+ LASSERT(atomic_read(&ctxt->loc_refcount) > 1);
llog_ctxt_put(ctxt);
- /* try to free the ctxt */
- rc = __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",
+ CERROR("Error %d while cleaning up ctxt %p\n",
rc, ctxt);
l_wait_event(olg->olg_waitq,
}
EXPORT_SYMBOL(llog_cleanup);
-int llog_setup(struct obd_device *obd, struct obd_llog_group *olg, int index,
- struct obd_device *disk_obd, int count, struct llog_logid *logid,
- struct llog_operations *op)
+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)
{
- int rc = 0;
struct llog_ctxt *ctxt;
+ int rc = 0;
ENTRY;
if (index < 0 || index >= LLOG_MAX_CTXTS)
- RETURN(-EFAULT);
+ RETURN(-EINVAL);
LASSERT(olg != NULL);
ctxt = llog_new_ctxt(obd);
if (!ctxt)
- GOTO(out, rc = -ENOMEM);
+ RETURN(-ENOMEM);
ctxt->loc_obd = obd;
- ctxt->loc_exp = class_export_get(disk_obd->obd_self_export);
ctxt->loc_olg = olg;
ctxt->loc_idx = index;
ctxt->loc_logops = op;
- sema_init(&ctxt->loc_sem, 1);
+ 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) {
llog_ctxt_destroy(ctxt);
if (rc == -EEXIST) {
- /* sanity check */
ctxt = llog_group_get_ctxt(olg, index);
-
- /* mds_lov_update_mds 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);
+ 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;
}
- GOTO(out, rc);
+ RETURN(rc);
}
- if (op->lop_setup)
- rc = op->lop_setup(obd, olg, index, disk_obd, count, logid);
-
- if (rc) {
- llog_ctxt_destroy(ctxt);
+ 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;
}
-out:
+
RETURN(rc);
}
EXPORT_SYMBOL(llog_setup);
-int llog_sync(struct llog_ctxt *ctxt, struct obd_export *exp)
+int llog_sync(struct llog_ctxt *ctxt, struct obd_export *exp, int flags)
{
int rc = 0;
ENTRY;
RETURN(0);
if (CTXTP(ctxt, sync))
- rc = CTXTP(ctxt, sync)(ctxt, exp);
+ rc = CTXTP(ctxt, sync)(ctxt, exp, flags);
RETURN(rc);
}
EXPORT_SYMBOL(llog_sync);
-int llog_add(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) {
- CERROR("No ctxt\n");
- RETURN(-ENODEV);
- }
-
- CTXT_CHECK_OP(ctxt, add, -EOPNOTSUPP);
- raised = cfs_cap_raised(CFS_CAP_SYS_RESOURCE);
- if (!raised)
- cfs_cap_raise(CFS_CAP_SYS_RESOURCE);
- rc = CTXTP(ctxt, add)(ctxt, rec, lsm, logcookies, numcookies);
- if (!raised)
- cfs_cap_lower(CFS_CAP_SYS_RESOURCE);
- RETURN(rc);
-}
-EXPORT_SYMBOL(llog_add);
-
-int llog_cancel(struct llog_ctxt *ctxt, struct lov_stripe_md *lsm,
- int count, struct llog_cookie *cookies, int flags)
+int llog_cancel(const struct lu_env *env, struct llog_ctxt *ctxt,
+ struct llog_cookie *cookies, int flags)
{
int rc;
ENTRY;
CERROR("No ctxt\n");
RETURN(-ENODEV);
}
-
+
CTXT_CHECK_OP(ctxt, cancel, -EOPNOTSUPP);
- rc = CTXTP(ctxt, cancel)(ctxt, lsm, count, cookies, flags);
+ rc = CTXTP(ctxt, cancel)(env, ctxt, cookies, flags);
RETURN(rc);
}
EXPORT_SYMBOL(llog_cancel);
-/* 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)
-{
- struct llog_logid_rec *lir = (struct llog_logid_rec *)rec;
- struct llog_handle *loghandle;
- struct llog_log_hdr *llh;
- int rc, index;
- ENTRY;
-
- if (rec->lrh_type != LLOG_LOGID_MAGIC) {
- CERROR("invalid record in catalog\n");
- 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);
+/* 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);
- rc = llog_cat_id2handle(cathandle, &loghandle, &lir->lid_id);
- if (rc) {
- CERROR("Cannot find handle for log "LPX64"\n",
- lir->lid_id.lgl_oid);
- RETURN(rc);
- }
-
- llh = loghandle->lgh_hdr;
- if ((llh->llh_flags & LLOG_F_ZAP_WHEN_EMPTY) &&
- (llh->llh_count == 1)) {
- rc = llog_destroy(loghandle);
- if (rc)
- CERROR("failure destroying log in postsetup: %d\n", rc);
-
- index = loghandle->u.phd.phd_cookie.lgc_index;
- llog_free_handle(loghandle);
-
- LASSERT(index);
- llog_cat_set_first_idx(cathandle, index);
- rc = llog_cancel_rec(cathandle, index);
- if (rc == 0)
- CDEBUG(D_HA, "cancel 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);
- }
-
- RETURN(rc);
-}
-
-/* lop_setup method for filter/osc */
-// XXX how to set exports
-int llog_obd_origin_setup(struct obd_device *obd, struct obd_llog_group *olg,
- int index, struct obd_device *disk_obd, int count,
- struct llog_logid *logid)
+int llog_info_init(void)
{
- struct llog_ctxt *ctxt;
- struct llog_handle *handle;
- struct lvfs_run_ctxt saved;
- int rc;
- ENTRY;
-
- if (count == 0)
- RETURN(0);
-
- LASSERT(count == 1);
-
- LASSERT(olg != NULL);
- ctxt = llog_group_get_ctxt(olg, index);
-
- LASSERT(ctxt);
- llog_gen_init(ctxt);
-
- if (logid->lgl_oid)
- rc = llog_create(ctxt, &handle, logid, NULL);
- else {
- rc = llog_create(ctxt, &handle, NULL, NULL);
- if (!rc)
- *logid = handle->lgh_id;
- }
- if (rc)
- GOTO(out, 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)
- GOTO(out, rc);
-
- 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);
-out:
- llog_ctxt_put(ctxt);
- RETURN(rc);
+ llog_key_init_generic(&llog_thread_key, NULL);
+ lu_context_key_register(&llog_thread_key);
+ return 0;
}
-EXPORT_SYMBOL(llog_obd_origin_setup);
-int llog_obd_origin_cleanup(struct llog_ctxt *ctxt)
+void llog_info_fini(void)
{
- struct llog_handle *cathandle, *n, *loghandle;
- struct llog_log_hdr *llh;
- int rc, index;
- ENTRY;
-
- if (!ctxt)
- RETURN(0);
-
- cathandle = ctxt->loc_handle;
- if (cathandle) {
- list_for_each_entry_safe(loghandle, n,
- &cathandle->u.chd.chd_head,
- u.phd.phd_entry) {
- llh = loghandle->lgh_hdr;
- if ((llh->llh_flags &
- LLOG_F_ZAP_WHEN_EMPTY) &&
- (llh->llh_count == 1)) {
- rc = llog_destroy(loghandle);
- if (rc)
- CERROR("failure destroying log during "
- "cleanup: %d\n", rc);
-
- index = loghandle->u.phd.phd_cookie.lgc_index;
- llog_free_handle(loghandle);
-
- LASSERT(index);
- llog_cat_set_first_idx(cathandle, index);
- rc = llog_cancel_rec(cathandle, index);
- if (rc == 0)
- CDEBUG(D_RPCTRACE, "cancel plain log at"
- "index %u of catalog "LPX64"\n",
- index,cathandle->lgh_id.lgl_oid);
- }
- }
- llog_cat_put(ctxt->loc_handle);
- }
- RETURN(0);
-}
-EXPORT_SYMBOL(llog_obd_origin_cleanup);
-
-/* add for obdfilter/sz and mds/unlink */
-int llog_obd_origin_add(struct llog_ctxt *ctxt,
- struct llog_rec_hdr *rec, struct lov_stripe_md *lsm,
- struct llog_cookie *logcookies, int numcookies)
-{
- struct llog_handle *cathandle;
- int rc;
- ENTRY;
-
- cathandle = ctxt->loc_handle;
- LASSERT(cathandle != NULL);
- rc = llog_cat_add_rec(cathandle, rec, logcookies, NULL);
- if (rc != 1)
- CERROR("write one catalog record failed: %d\n", rc);
- RETURN(rc);
-}
-EXPORT_SYMBOL(llog_obd_origin_add);
-
-int llog_cat_initialize(struct obd_device *obd, struct obd_llog_group *olg,
- int idx, struct obd_uuid *uuid)
-{
- char name[32] = CATLIST;
- struct llog_catid idarray;
- int rc;
- ENTRY;
-
- mutex_down(&olg->olg_cat_processing);
- rc = llog_get_cat_list(obd, obd, name, idx, 1, &idarray);
- if (rc) {
- CERROR("rc: %d\n", rc);
- GOTO(out, rc);
- }
-
- CDEBUG(D_INFO, "init llog for %s/%d - catid "LPX64"/"LPX64"/%x\n",
- uuid->uuid, idx, idarray.lci_logid.lgl_oid,
- idarray.lci_logid.lgl_ogr, idarray.lci_logid.lgl_ogen);
-
- rc = obd_llog_init(obd, olg, obd, 1, &idarray, uuid);
- if (rc) {
- CERROR("rc: %d\n", rc);
- GOTO(out, rc);
- }
-
- rc = llog_put_cat_list(obd, obd, name, idx, 1, &idarray);
- if (rc) {
- CERROR("rc: %d\n", rc);
- GOTO(out, rc);
- }
-
- out:
- mutex_up(&olg->olg_cat_processing);
-
- RETURN(rc);
-}
-EXPORT_SYMBOL(llog_cat_initialize);
-
-int obd_llog_init(struct obd_device *obd, struct obd_llog_group *olg,
- struct obd_device *disk_obd, int count,
- struct llog_catid *logid, struct obd_uuid *uuid)
-{
- int rc;
- ENTRY;
- OBD_CHECK_DT_OP(obd, llog_init, 0);
- OBD_COUNTER_INCREMENT(obd, llog_init);
-
- rc = OBP(obd, llog_init)(obd, olg, disk_obd, count, logid, uuid);
- RETURN(rc);
-}
-EXPORT_SYMBOL(obd_llog_init);
-
-int obd_llog_finish(struct obd_device *obd, int count)
-{
- int rc;
- ENTRY;
- OBD_CHECK_DT_OP(obd, llog_finish, 0);
- OBD_COUNTER_INCREMENT(obd, llog_finish);
-
- rc = OBP(obd, llog_finish)(obd, count);
- RETURN(rc);
+ lu_context_key_degister(&llog_thread_key);
}
-EXPORT_SYMBOL(obd_llog_finish);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff