-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
+/*
+ * GPL HEADER START
*
- * Copyright (C) 2001 Cluster File Systems, Inc. <info@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.sun.com/software/products/lustre/docs/GPLv2.pdf
*
- * 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.
+ * 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.
*
- * Generic infrastructure for managing a collection of logs.
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2007, 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/
+ * Lustre is a trademark of Sun Microsystems, Inc.
*
+ * lustre/include/lustre_log.h
+ *
+ * Generic infrastructure for managing a collection of logs.
* These logs are used for:
*
* - orphan recovery: OST adds record on create
#ifndef _LUSTRE_LOG_H
#define _LUSTRE_LOG_H
+/** \defgroup log log
+ *
+ * @{
+ */
+
#if defined(__linux__)
#include <linux/lustre_log.h>
#elif defined(__APPLE__)
#error Unsupported operating system.
#endif
-#include <obd.h>
+#include <obd_class.h>
#include <obd_ost.h>
#include <lustre/lustre_idl.h>
#define LLOG_EEMPTY 4711
struct plain_handle_data {
- struct list_head phd_entry;
+ cfs_list_t phd_entry;
struct llog_handle *phd_cat_handle;
struct llog_cookie phd_cookie; /* cookie of this log in its cat */
int phd_last_idx;
};
struct cat_handle_data {
- struct list_head chd_head;
+ cfs_list_t chd_head;
struct llog_handle *chd_current_log; /* currently open log */
};
/* In-memory descriptor for a log object or log catalog */
struct llog_handle {
- struct rw_semaphore lgh_lock;
+ cfs_rw_semaphore_t lgh_lock;
struct llog_logid lgh_id; /* id of this log */
struct llog_log_hdr *lgh_hdr;
struct file *lgh_file;
extern void llog_free_handle(struct llog_handle *handle);
int llog_process(struct llog_handle *loghandle, llog_cb_t cb,
void *data, void *catdata);
+int llog_process_flags(struct llog_handle *loghandle, llog_cb_t cb,
+ void *data, void *catdata, int flags);
int llog_reverse_process(struct llog_handle *loghandle, llog_cb_t cb,
void *data, void *catdata);
extern int llog_cancel_rec(struct llog_handle *loghandle, int index);
extern int llog_close(struct llog_handle *cathandle);
extern int llog_get_size(struct llog_handle *loghandle);
-/* llog_cat.c - catalog api */
+/* llog_process flags */
+#define LLOG_FLAG_NODEAMON 0x0001
+
+/* llog_cat.c - catalog api */
struct llog_process_data {
- void *lpd_data;
- llog_cb_t lpd_cb;
+ /**
+ * Any useful data needed while processing catalog. This is
+ * passed later to process callback.
+ */
+ void *lpd_data;
+ /**
+ * Catalog process callback function, called for each record
+ * in catalog.
+ */
+ llog_cb_t lpd_cb;
+ /**
+ * Start processing the catalog from startcat/startidx
+ */
+ int lpd_startcat;
+ int lpd_startidx;
+ int lpd_flags; /** llog_process flags */
};
struct llog_process_cat_data {
- int first_idx;
- int last_idx;
- /* to process catalog across zero record */
+ /**
+ * Temporary stored first_idx while scanning log.
+ */
+ int lpcd_first_idx;
+ /**
+ * Temporary stored last_idx while scanning log.
+ */
+ int lpcd_last_idx;
+};
+
+struct llog_process_cat_args {
+ /**
+ * Llog context used in recovery thread on OST (recov_thread.c)
+ */
+ struct llog_ctxt *lpca_ctxt;
+ /**
+ * Llog callback used in recovery thread on OST (recov_thread.c)
+ */
+ void *lpca_cb;
+ /**
+ * Data pointer for llog callback.
+ */
+ void *lpca_arg;
};
int llog_cat_put(struct llog_handle *cathandle);
struct llog_cookie *reccookie, void *buf);
int llog_cat_cancel_records(struct llog_handle *cathandle, int count,
struct llog_cookie *cookies);
-int llog_cat_process(struct llog_handle *cat_llh, llog_cb_t cb, void *data);
+int llog_cat_process(struct llog_handle *cat_llh, llog_cb_t cb, void *data,
+ int startcat, int startidx);
+int llog_cat_process_flags(struct llog_handle *cat_llh, llog_cb_t cb, void *data,
+ int flags, int startcat, int startidx);
+int llog_cat_process_thread(void *data);
int llog_cat_reverse_process(struct llog_handle *cat_llh, llog_cb_t cb, void *data);
int llog_cat_set_first_idx(struct llog_handle *cathandle, int index);
/* llog_obd.c */
+int llog_setup_named(struct obd_device *obd, struct obd_llog_group *olg,
+ int index, struct obd_device *disk_obd, int count,
+ struct llog_logid *logid, const char *logname,
+ struct llog_operations *op);
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 obd_device *disk_obd, int count, struct llog_logid *logid,
struct llog_operations *op);
int __llog_ctxt_put(struct llog_ctxt *ctxt);
int llog_cleanup(struct llog_ctxt *);
-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 llog_add(struct llog_ctxt *ctxt, struct llog_rec_hdr *rec,
struct lov_stripe_md *lsm, struct llog_cookie *logcookies,
int numcookies);
int llog_cancel(struct llog_ctxt *, struct lov_stripe_md *lsm,
int count, struct llog_cookie *cookies, int flags);
-int llog_obd_origin_setup(struct obd_device *obd, struct obd_llog_group *olg,
+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);
+ struct llog_logid *logid, const char *name);
int llog_obd_origin_cleanup(struct llog_ctxt *ctxt);
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);
-int llog_cat_initialize(struct obd_device *obd, struct obd_llog_group *olg,
- int count, struct obd_uuid *uuid);
-int obd_llog_init(struct obd_device *obd, int group,
- struct obd_device *disk_obd, int count,
- struct llog_catid *logid, struct obd_uuid *uuid);
+int obd_llog_init(struct obd_device *obd, struct obd_llog_group *olg,
+ struct obd_device *disk_obd, int *idx);
int obd_llog_finish(struct obd_device *obd, int count);
/* llog_net.c */
int llog_initiator_connect(struct llog_ctxt *ctxt);
int llog_receptor_accept(struct llog_ctxt *ctxt, struct obd_import *imp);
-int llog_origin_connect(struct llog_ctxt *ctxt, int count,
+int llog_origin_connect(struct llog_ctxt *ctxt,
struct llog_logid *logid, struct llog_gen *gen,
struct obd_uuid *uuid);
int llog_handle_connect(struct ptlrpc_request *req);
int llog_obd_repl_cancel(struct llog_ctxt *ctxt,
struct lov_stripe_md *lsm, int count,
struct llog_cookie *cookies, int flags);
-int llog_obd_repl_sync(struct llog_ctxt *ctxt, struct obd_export *exp);
-int llog_repl_connect(struct llog_ctxt *ctxt, int count,
- struct llog_logid *logid, struct llog_gen *gen,
- struct obd_uuid *uuid);
+int llog_obd_repl_sync(struct llog_ctxt *ctxt, struct obd_export *exp,
+ int flags);
+int llog_obd_repl_connect(struct llog_ctxt *ctxt,
+ struct llog_logid *logid, struct llog_gen *gen,
+ struct obd_uuid *uuid);
struct llog_operations {
int (*lop_write_rec)(struct llog_handle *loghandle,
int (*lop_close)(struct llog_handle *handle);
int (*lop_read_header)(struct llog_handle *handle);
- int (*lop_setup)(struct obd_device *obd, struct obd_llog_group *olg,
+ int (*lop_setup)(struct obd_device *obd, struct obd_llog_group *olg,
int ctxt_idx, struct obd_device *disk_obd, int count,
- struct llog_logid *logid);
- int (*lop_sync)(struct llog_ctxt *ctxt, struct obd_export *exp);
+ struct llog_logid *logid, const char *name);
+ int (*lop_sync)(struct llog_ctxt *ctxt, struct obd_export *exp,
+ int flags);
int (*lop_cleanup)(struct llog_ctxt *ctxt);
int (*lop_add)(struct llog_ctxt *ctxt, struct llog_rec_hdr *rec,
struct lov_stripe_md *lsm,
struct llog_cookie *logcookies, int numcookies);
int (*lop_cancel)(struct llog_ctxt *ctxt, struct lov_stripe_md *lsm,
int count, struct llog_cookie *cookies, int flags);
- int (*lop_connect)(struct llog_ctxt *ctxt, int count,
+ int (*lop_connect)(struct llog_ctxt *ctxt,
struct llog_logid *logid, struct llog_gen *gen,
struct obd_uuid *uuid);
/* XXX add 2 more: commit callbacks and llog recovery functions */
/* llog_lvfs.c */
extern struct llog_operations llog_lvfs_ops;
-int llog_get_cat_list(struct obd_device *obd, struct obd_device *disk_obd,
- char *name, int count, struct llog_catid *idarray);
+int llog_get_cat_list(struct obd_device *disk_obd,
+ char *name, int idx, int count,
+ struct llog_catid *idarray);
+
+int llog_put_cat_list(struct obd_device *disk_obd,
+ char *name, int idx, int count, struct llog_catid *idarray);
+
+#define LLOG_CTXT_FLAG_UNINITIALIZED 0x00000001
+#define LLOG_CTXT_FLAG_STOP 0x00000002
struct llog_ctxt {
int loc_idx; /* my index the obd array of ctxt's */
struct llog_gen loc_gen;
struct obd_device *loc_obd; /* points back to the containing obd*/
- struct obd_llog_group *loc_olg; /* group containing that ctxt */
+ struct obd_llog_group *loc_olg; /* group containing that ctxt */
struct obd_export *loc_exp; /* parent "disk" export (e.g. MDS) */
struct obd_import *loc_imp; /* to use in RPC's: can be backward
pointing import */
struct llog_operations *loc_logops;
struct llog_handle *loc_handle;
- struct llog_canceld_ctxt *loc_llcd;
- struct semaphore loc_sem; /* protects loc_llcd and loc_imp */
- atomic_t loc_refcount;
struct llog_commit_master *loc_lcm;
+ struct llog_canceld_ctxt *loc_llcd;
+ cfs_mutex_t loc_mutex; /* protects loc_llcd and loc_imp */
+ cfs_atomic_t loc_refcount;
void *llog_proc_cb;
+ long loc_flags; /* flags, see above defines */
};
-#ifndef __KERNEL__
+#define LCM_NAME_SIZE 64
+
+struct llog_commit_master {
+ /**
+ * Thread control flags (start, stop, etc.)
+ */
+ long lcm_flags;
+ /**
+ * Number of llcds onthis lcm.
+ */
+ cfs_atomic_t lcm_count;
+ /**
+ * The refcount for lcm
+ */
+ cfs_atomic_t lcm_refcount;
+ /**
+ * Thread control structure. Used for control commit thread.
+ */
+ struct ptlrpcd_ctl lcm_pc;
+ /**
+ * Lock protecting list of llcds.
+ */
+ cfs_spinlock_t lcm_lock;
+ /**
+ * Llcds in flight for debugging purposes.
+ */
+ cfs_list_t lcm_llcds;
+ /**
+ * Commit thread name buffer. Only used for thread start.
+ */
+ char lcm_name[LCM_NAME_SIZE];
+};
-#define cap_raise(c, flag) do {} while(0)
+static inline struct llog_commit_master
+*lcm_get(struct llog_commit_master *lcm)
+{
+ cfs_atomic_inc(&lcm->lcm_refcount);
+ return lcm;
+}
+
+static inline void
+lcm_put(struct llog_commit_master *lcm)
+{
+ LASSERT_ATOMIC_POS(&lcm->lcm_refcount);
+ if (cfs_atomic_dec_and_test(&lcm->lcm_refcount))
+ OBD_FREE_PTR(lcm);
+}
-#define CAP_SYS_RESOURCE 24
+struct llog_canceld_ctxt {
+ /**
+ * Llog context this llcd is attached to. Used for accessing
+ * ->loc_import and others in process of canceling cookies
+ * gathered in this llcd.
+ */
+ struct llog_ctxt *llcd_ctxt;
+ /**
+ * Cancel thread control stucture pointer. Used for accessing
+ * it to see if should stop processing and other needs.
+ */
+ struct llog_commit_master *llcd_lcm;
+ /**
+ * Maximal llcd size. Used in calculations on how much of room
+ * left in llcd to cookie comming cookies.
+ */
+ int llcd_size;
+ /**
+ * Link to lcm llcds list.
+ */
+ cfs_list_t llcd_list;
+ /**
+ * Current llcd size while gathering cookies. This should not be
+ * more than ->llcd_size. Used for determining if we need to
+ * send this llcd (if full) and allocate new one. This is also
+ * used for copying new cookie at the end of buffer.
+ */
+ int llcd_cookiebytes;
+ /**
+ * Pointer to the start of cookies buffer.
+ */
+ struct llog_cookie llcd_cookies[0];
+};
-#endif /* !__KERNEL__ */
+/* ptlrpc/recov_thread.c */
+extern struct llog_commit_master *llog_recov_thread_init(char *name);
+extern void llog_recov_thread_fini(struct llog_commit_master *lcm,
+ int force);
+extern int llog_recov_thread_start(struct llog_commit_master *lcm);
+extern void llog_recov_thread_stop(struct llog_commit_master *lcm,
+ int force);
static inline void llog_gen_init(struct llog_ctxt *ctxt)
{
struct obd_device *obd = ctxt->loc_exp->exp_obd;
- if (!strcmp(obd->obd_type->typ_name, LUSTRE_MDS_NAME))
- ctxt->loc_gen.mnt_cnt = obd->u.mds.mds_mount_count;
- else if (!strstr(obd->obd_type->typ_name, LUSTRE_OST_NAME))
- ctxt->loc_gen.mnt_cnt = obd->u.filter.fo_mount_count;
- else
- ctxt->loc_gen.mnt_cnt = 0;
+ LASSERTF(obd->u.obt.obt_magic == OBT_MAGIC,
+ "%s: wrong obt magic %#x\n",
+ obd->obd_name, obd->u.obt.obt_magic);
+ ctxt->loc_gen.mnt_cnt = obd->u.obt.obt_mount_count;
+ ctxt->loc_gen.conn_cnt++;
}
static inline int llog_gen_lt(struct llog_gen a, struct llog_gen b)
return(a.conn_cnt < b.conn_cnt ? 1 : 0);
}
-#define LLOG_GEN_INC(gen) ((gen).conn_cnt ++)
#define LLOG_PROC_BREAK 0x0001
#define LLOG_DEL_RECORD 0x0002
static inline int llog_data_len(int len)
{
- return size_round(len);
+ return cfs_size_round(len);
}
static inline struct llog_ctxt *llog_ctxt_get(struct llog_ctxt *ctxt)
{
- LASSERT(atomic_read(&ctxt->loc_refcount) > 0);
- atomic_inc(&ctxt->loc_refcount);
+ cfs_atomic_inc(&ctxt->loc_refcount);
CDEBUG(D_INFO, "GETting ctxt %p : new refcount %d\n", ctxt,
- atomic_read(&ctxt->loc_refcount));
+ cfs_atomic_read(&ctxt->loc_refcount));
return ctxt;
}
{
if (ctxt == NULL)
return;
+ LASSERT_ATOMIC_GT_LT(&ctxt->loc_refcount, 0, LI_POISON);
CDEBUG(D_INFO, "PUTting ctxt %p : new refcount %d\n", ctxt,
- atomic_read(&ctxt->loc_refcount) - 1);
- LASSERT(atomic_read(&ctxt->loc_refcount) > 0);
- LASSERT(atomic_read(&ctxt->loc_refcount) < 0x5a5a5a);
+ cfs_atomic_read(&ctxt->loc_refcount) - 1);
__llog_ctxt_put(ctxt);
}
static inline void llog_group_init(struct obd_llog_group *olg, int group)
{
cfs_waitq_init(&olg->olg_waitq);
- spin_lock_init(&olg->olg_lock);
- olg->olg_group = group;
+ cfs_spin_lock_init(&olg->olg_lock);
+ cfs_mutex_init(&olg->olg_cat_processing);
+ olg->olg_seq = group;
}
static inline void llog_group_set_export(struct obd_llog_group *olg,
struct obd_export *exp)
{
LASSERT(exp != NULL);
-
- spin_lock(&olg->olg_lock);
+
+ cfs_spin_lock(&olg->olg_lock);
if (olg->olg_exp != NULL && olg->olg_exp != exp)
CWARN("%s: export for group %d is changed: 0x%p -> 0x%p\n",
- exp->exp_obd->obd_name, olg->olg_group,
+ exp->exp_obd->obd_name, olg->olg_seq,
olg->olg_exp, exp);
olg->olg_exp = exp;
- spin_unlock(&olg->olg_lock);
+ cfs_spin_unlock(&olg->olg_lock);
}
static inline int llog_group_set_ctxt(struct obd_llog_group *olg,
{
LASSERT(index >= 0 && index < LLOG_MAX_CTXTS);
- spin_lock(&olg->olg_lock);
+ cfs_spin_lock(&olg->olg_lock);
if (olg->olg_ctxts[index] != NULL) {
- spin_unlock(&olg->olg_lock);
+ cfs_spin_unlock(&olg->olg_lock);
return -EEXIST;
}
olg->olg_ctxts[index] = ctxt;
- spin_unlock(&olg->olg_lock);
+ cfs_spin_unlock(&olg->olg_lock);
return 0;
}
LASSERT(index >= 0 && index < LLOG_MAX_CTXTS);
- spin_lock(&olg->olg_lock);
+ cfs_spin_lock(&olg->olg_lock);
if (olg->olg_ctxts[index] == NULL) {
ctxt = NULL;
} else {
ctxt = llog_ctxt_get(olg->olg_ctxts[index]);
}
- spin_unlock(&olg->olg_lock);
+ cfs_spin_unlock(&olg->olg_lock);
return ctxt;
}
int numcookies, void *buf, int idx)
{
struct llog_operations *lop;
- __u32 cap;
- int rc, buflen;
+ int raised, rc, buflen;
ENTRY;
rc = llog_handle2ops(handle, &lop);
if (lop->lop_write_rec == NULL)
RETURN(-EOPNOTSUPP);
+ /* FIXME: Why doesn't caller just set the right lrh_len itself? */
if (buf)
buflen = rec->lrh_len + sizeof(struct llog_rec_hdr)
+ sizeof(struct llog_rec_tail);
else
buflen = rec->lrh_len;
- LASSERT(size_round(buflen) == buflen);
+ LASSERT(cfs_size_round(buflen) == buflen);
- cap = current->cap_effective;
- cap_raise(current->cap_effective, CAP_SYS_RESOURCE);
+ raised = cfs_cap_raised(CFS_CAP_SYS_RESOURCE);
+ if (!raised)
+ cfs_cap_raise(CFS_CAP_SYS_RESOURCE);
rc = lop->lop_write_rec(handle, rec, logcookies, numcookies, buf, idx);
- current->cap_effective = cap;
+ if (!raised)
+ cfs_cap_lower(CFS_CAP_SYS_RESOURCE);
RETURN(rc);
}
struct llog_logid *logid, char *name)
{
struct llog_operations *lop;
- __u32 cap;
- int rc;
+ int raised, rc;
ENTRY;
rc = llog_obd2ops(ctxt, &lop);
if (lop->lop_create == NULL)
RETURN(-EOPNOTSUPP);
- cap = current->cap_effective;
- cap_raise(current->cap_effective, CAP_SYS_RESOURCE);
+ raised = cfs_cap_raised(CFS_CAP_SYS_RESOURCE);
+ if (!raised)
+ cfs_cap_raise(CFS_CAP_SYS_RESOURCE);
rc = lop->lop_create(ctxt, res, logid, name);
- current->cap_effective = cap;
+ if (!raised)
+ cfs_cap_lower(CFS_CAP_SYS_RESOURCE);
RETURN(rc);
}
-static inline int llog_connect(struct llog_ctxt *ctxt, int count,
+static inline int llog_connect(struct llog_ctxt *ctxt,
struct llog_logid *logid, struct llog_gen *gen,
struct obd_uuid *uuid)
{
if (lop->lop_connect == NULL)
RETURN(-EOPNOTSUPP);
- rc = lop->lop_connect(ctxt, count, logid, gen, uuid);
+ rc = lop->lop_connect(ctxt, logid, gen, uuid);
RETURN(rc);
}
+int lustre_process_log(struct super_block *sb, char *logname,
+ struct config_llog_instance *cfg);
+int lustre_end_log(struct super_block *sb, char *logname,
+ struct config_llog_instance *cfg);
+
+/** @} log */
+
#endif
git://git.whamcloud.com / fs / lustre-release.git / blobdiff