LU-6838 llog: limit file size of plain logs

[fs/lustre-release.git] / lustre / obdclass / llog_internal.h

diff --git a/lustre/obdclass/llog_internal.h b/lustre/obdclass/llog_internal.h
index d4be19c..8d5d2ad 100644 (file)
--- a/lustre/obdclass/llog_internal.h
+++ b/lustre/obdclass/llog_internal.h
@@ -1,10 +1,102 @@
+/*
+ * 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.gnu.org/licenses/gpl-2.0.html
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ *
+ * Copyright (c) 2012, 2015, Intel Corporation.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ */
+
 #ifndef __LLOG_INTERNAL_H__
 #define __LLOG_INTERNAL_H__
 
-int llog_put_cat_list(struct obd_device *obd, struct obd_device *disk_obd,
-                      char *name, int count, struct llog_catid *idarray);
-int llog_cat_id2handle(struct llog_handle *cathandle, struct llog_handle **res,
-                       struct llog_logid *logid);
-int class_config_dump_handler(struct llog_handle * handle,
-                              struct llog_rec_hdr *rec, void *data);
+#include <lustre_log.h>
+
+struct llog_process_info {
+        struct llog_handle *lpi_loghandle;
+        llog_cb_t           lpi_cb;
+        void               *lpi_cbdata;
+        void               *lpi_catdata;
+        int                 lpi_rc;
+       struct completion       lpi_completion;
+       const struct lu_env     *lpi_env;
+};
+
+struct llog_thread_info {
+       struct lu_attr                   lgi_attr;
+       struct lu_fid                    lgi_fid;
+       struct dt_object_format          lgi_dof;
+       struct lu_buf                    lgi_buf;
+       loff_t                           lgi_off;
+       struct llog_logid_rec            lgi_logid;
+       struct dt_insert_rec             lgi_dt_rec;
+       struct lu_seq_range              lgi_range;
+       struct llog_cookie               lgi_cookie;
+       struct obd_statfs                lgi_statfs;
+       char                             lgi_name[32];
+};
+
+extern struct lu_context_key llog_thread_key;
+
+static inline struct llog_thread_info *llog_info(const struct lu_env *env)
+{
+       struct llog_thread_info *lgi;
+
+       lgi = lu_context_key_get(&env->le_ctx, &llog_thread_key);
+       LASSERT(lgi);
+       return lgi;
+}
+
+static inline void
+lustre_build_llog_lvfs_oid(struct llog_logid *logid, __u64 ino, __u32 gen)
+{
+       ostid_set_seq_llog(&logid->lgl_oi);
+       ostid_set_id(&logid->lgl_oi, ino);
+       logid->lgl_ogen = gen;
+}
+
+int llog_info_init(void);
+void llog_info_fini(void);
+
+void llog_handle_get(struct llog_handle *loghandle);
+void llog_handle_put(struct llog_handle *loghandle);
+int llog_cat_id2handle(const struct lu_env *env, struct llog_handle *cathandle,
+                      struct llog_handle **res, struct llog_logid *logid);
+int class_config_dump_handler(const struct lu_env *env,
+                             struct llog_handle *handle,
+                             struct llog_rec_hdr *rec, void *data);
+int class_config_yaml_output(struct llog_rec_hdr *rec, char *buf, int size);
+int llog_process_or_fork(const struct lu_env *env,
+                        struct llog_handle *loghandle,
+                        llog_cb_t cb, void *data, void *catdata, bool fork);
+int llog_cat_cleanup(const struct lu_env *env, struct llog_handle *cathandle,
+                    struct llog_handle *loghandle, int index);
+
+static inline struct llog_rec_hdr *llog_rec_hdr_next(struct llog_rec_hdr *rec)
+{
+       return (struct llog_rec_hdr *)((char *)rec + rec->lrh_len);
+}
 #endif