-/* -*- 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, Whamcloud, Inc.
*/
/*
* 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
return NULL;
ctxt->loc_obd = obd;
- atomic_set(&ctxt->loc_refcount, 1);
+ cfs_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;
}
LASSERT(ctxt->loc_llcd == NULL);
OBD_FREE_PTR(ctxt);
- return;
}
int __llog_ctxt_put(struct llog_ctxt *ctxt)
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);
+ cfs_spin_lock(&olg->olg_lock);
+ if (!cfs_atomic_dec_and_test(&ctxt->loc_refcount)) {
+ cfs_spin_unlock(&olg->olg_lock);
return rc;
}
olg->olg_ctxts[ctxt->loc_idx] = NULL;
- spin_unlock(&olg->olg_lock);
+ cfs_spin_unlock(&olg->olg_lock);
+
+ if (ctxt->loc_lcm)
+ lcm_put(ctxt->loc_lcm);
obd = ctxt->loc_obd;
- spin_lock(&obd->obd_dev_lock);
- spin_unlock(&obd->obd_dev_lock); /* sync with llog ctxt user thread */
+ cfs_spin_lock(&obd->obd_dev_lock);
+ /* sync with llog ctxt user thread */
+ cfs_spin_unlock(&obd->obd_dev_lock);
/* obd->obd_starting is needed for the case of cleanup
* in error case while obd is starting up. */
rc = CTXTP(ctxt, cleanup)(ctxt);
llog_ctxt_destroy(ctxt);
- wake_up(&olg->olg_waitq);
+ cfs_waitq_signal(&olg->olg_waitq);
return rc;
}
EXPORT_SYMBOL(__llog_ctxt_put);
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(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 */
+ /*
+ * Try to free the ctxt.
+ */
rc = __llog_ctxt_put(ctxt);
if (rc)
CERROR("Error %d while cleaning up ctxt %p\n",
struct llog_logid *logid, const char *logname,
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);
+ cfs_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,
- logname);
- if (rc) {
- CERROR("obd %s ctxt %d lop_setup=%p failed %d\n",
- obd->obd_name, index, op->lop_setup, rc);
- llog_ctxt_put(ctxt);
- }
+ if (OBD_FAIL_CHECK(OBD_FAIL_OBD_LLOG_SETUP)) {
+ rc = -ENOTSUPP;
+ } else {
+ if (op->lop_setup)
+ rc = op->lop_setup(obd, olg, index, disk_obd, count,
+ logid, logname);
}
-out:
+
+ if (rc) {
+ CERROR("obd %s ctxt %d lop_setup=%p failed %d\n",
+ obd->obd_name, index, op->lop_setup, rc);
+ llog_ctxt_put(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_named);
}
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);
}
RETURN(-ENODEV);
}
+ if (ctxt->loc_flags & LLOG_CTXT_FLAG_UNINITIALIZED)
+ RETURN(-ENXIO);
+
+
CTXT_CHECK_OP(ctxt, add, -EOPNOTSUPP);
raised = cfs_cap_raised(CFS_CAP_SYS_RESOURCE);
if (!raised)
if (rc) {
CERROR("Cannot find handle for log "LPX64"\n",
lir->lid_id.lgl_oid);
+ if (rc == -ENOENT) {
+ index = rec->lrh_index;
+ goto cat_cleanup;
+ }
RETURN(rc);
}
index = loghandle->u.phd.phd_cookie.lgc_index;
llog_free_handle(loghandle);
+cat_cleanup:
LASSERT(index);
llog_cat_set_first_idx(cathandle, index);
rc = llog_cancel_rec(cathandle, index);
LASSERT(olg != NULL);
ctxt = llog_group_get_ctxt(olg, index);
-
- LASSERT(ctxt);
- llog_gen_init(ctxt);
+ if (!ctxt)
+ RETURN(-ENODEV);
if (logid && logid->lgl_oid) {
rc = llog_create(ctxt, &handle, logid, NULL);
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);
+ CERROR("llog_process() with cat_cancel_cb failed: %d\n", rc);
+ GOTO(out, rc);
out:
llog_ctxt_put(ctxt);
- RETURN(rc);
+ return rc;
}
EXPORT_SYMBOL(llog_obd_origin_setup);
cathandle = ctxt->loc_handle;
if (cathandle) {
- list_for_each_entry_safe(loghandle, n,
- &cathandle->u.chd.chd_head,
- u.phd.phd_entry) {
+ cfs_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) &&
cathandle = ctxt->loc_handle;
LASSERT(cathandle != NULL);
rc = llog_cat_add_rec(cathandle, rec, logcookies, NULL);
- if ((rc < 0) || (!logcookies && rc))
+ if (rc != 0 && 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, "%s: Init llog for %s/%d - catid "LPX64"/"LPX64":%x\n",
- obd->obd_name, 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)
+ struct obd_device *disk_obd, int *index)
{
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);
+ rc = OBP(obd, llog_init)(obd, olg, disk_obd, index);
RETURN(rc);
}
EXPORT_SYMBOL(obd_llog_init);
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);
+}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff