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 d83733e..8d5d2ad 100644 (file)
--- a/lustre/obdclass/llog_internal.h
+++ b/lustre/obdclass/llog_internal.h
@@ -1,6 +1,4 @@
-/* -*- 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.
@@ -17,17 +15,15 @@
  *
  * 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.
+ * http://www.gnu.org/licenses/gpl-2.0.html
  *
  * 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, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -45,11 +41,62 @@ struct llog_process_info {
         void               *lpi_cbdata;
         void               *lpi_catdata;
         int                 lpi_rc;
-        struct completion   lpi_completion;
+       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];
 };
 
-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);
+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