b=7049

[fs/lustre-release.git] / lustre / smfs / smfs_llog.c

diff --git a/lustre/smfs/smfs_llog.c b/lustre/smfs/smfs_llog.c
index a661e56..c2d315c 100644 (file)
--- a/lustre/smfs/smfs_llog.c
+++ b/lustre/smfs/smfs_llog.c
@@ -1,27 +1,101 @@
-/*
- * llog.c
+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
+ *  lustre/smfs/smfs_llog.c
+ *  Lustre filesystem abstraction routines
+ *
+ *  Copyright (C) 2004 Cluster File Systems, Inc.
+ *
+ *   This file is part of Lustre, http://www.lustre.org.
+ *
+ *   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.
+ *
+ *   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
+ *   along with Lustre; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
+
 #define DEBUG_SUBSYSTEM S_SM
 
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-#include <linux/stat.h>
-#include <linux/unistd.h>
-#include <linux/lustre_idl.h> 
+#include <linux/lustre_log.h>
+#include <linux/lustre_fsfilt.h>
+#include <linux/lustre_smfs.h>
+#include <linux/lvfs.h>
 
 #include "smfs_internal.h"
-
-int smfs_llog_setup(struct llog_ctxt **p_ctxt)
+int smfs_llog_setup(struct dentry **logs, struct dentry **objects)
 {
-       int rc = 0;
-    
+        struct dentry *dentry = NULL;
+        int rc = 0;
+        ENTRY;
+
+        /* create OBJECTS and LOGS for writing logs */
+        dentry = simple_mkdir(current->fs->pwd, "LOGS", 0777, 1);
+        if (IS_ERR(dentry)) {
+                CERROR("cannot create LOGS directory: rc = %d\n",
+                       (int)PTR_ERR(dentry));
+                RETURN(rc);
+        }
+        *logs = dentry;
+        
+        dentry = simple_mkdir(current->fs->pwd, "OBJECTS", 0777, 1);
+        if (IS_ERR(dentry)) {
+                CERROR("cannot create OBJECTS directory: rc = %d\n",
+                       (int)PTR_ERR(dentry));
+                RETURN(rc);
+        }
+        *objects = dentry;
+        
         RETURN(rc);
-}      
+}
 
+int smfs_llog_cleanup(struct smfs_super_info *smb)
+{
+        ENTRY;
 
+        /*
+        if (SMFS_CACHE_HOOK(S2SMI(sb)))
+                rc = cache_space_hook_cleanup();
 
+        if (SMFS_DO_REC(S2SMI(sb))) {
+                rc2 = llog_catalog_cleanup(ctxt);
+                OBD_FREE(ctxt, sizeof(*ctxt));
+                if (!rc)
+                        rc = rc2;
+        }
+        */
+        if (smb->smsi_logs_dir) {
+                l_dput(smb->smsi_logs_dir);
+                smb->smsi_logs_dir = NULL;
+        }
+        if (smb->smsi_objects_dir) {
+                l_dput(smb->smsi_objects_dir);
+                smb->smsi_objects_dir = NULL;
+        }
+        RETURN(0);
+}
 
+int smfs_llog_add_rec(struct smfs_super_info *smb, void *data, int data_size)
+{
+        struct llog_rec_hdr rec;
+        int rc = 0;
+        
+        ENTRY;
+        rec.lrh_len = size_round(data_size);
+        rec.lrh_type = SMFS_UPDATE_REC;
 
+        rc = llog_catalog_add(smb->smsi_kml_log, &rec, data, NULL, 0, NULL, NULL, NULL);
+        if (rc != 1) {
+                CERROR("error adding kml rec: %d\n", rc);
+                RETURN(-EINVAL);
+        }
+        RETURN(0);
+}