File containing read/write fptr implementations for OBDFILTER device. To be added...

diff --git a/lustre/obdfilter/lproc_obdfilter.c b/lustre/obdfilter/lproc_obdfilter.c
new file mode 100644 (file)
index 0000000..a97605d
--- /dev/null
+++ b/lustre/obdfilter/lproc_obdfilter.c
@@ -0,0 +1,133 @@
+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
+ *  Copyright (C) 2002 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_CLASS
+#include <linux/obd_support.h>
+#include <linux/obd_class.h>
+#include <linux/lprocfs.h>
+#include <linux/string.h>
+#include <linux/lustre_lib.h>
+
+int rd_uuid(char* page, char **start, off_t off,
+               int count, int *eof, void *data)
+{
+        int len=0;
+        struct obd_device* dev=(struct obd_device*)data;
+        len+=snprintf(page, count, "%s\n", dev->obd_uuid);
+        return len;
+
+        
+
+}
+int rd_blksize(char* page, char **start, off_t off,
+               int count, int *eof, void *data)
+{
+        struct obd_device* temp=(struct obd_device*)data;
+        struct statfs mystats;
+
+        int rc, len=0;
+
+        rc = vfs_statfs(temp->u.filter.fo_sb, &mystats);
+        if (rc) {
+                CERROR("obdfilter: statfs failed: rc %d\n", rc);
+                return 0;
+        }
+        len+=snprintf(page, count, LPU64"\n", (__u64)(mystats.f_bsize)); 
+        return len;
+        
+
+}
+int rd_blktotal(char* page, char **start, off_t off,
+                int count, int *eof, void *data)
+{
+        struct obd_device* temp=(struct obd_device*)data;
+        struct statfs mystats;
+
+        int rc, len=0;
+
+        rc = vfs_statfs(temp->u.filter.fo_sb, &mystats);
+        if (rc) {
+                CERROR("obdfilter: statfs failed: rc %d\n", rc);
+                return 0;
+        }
+        len+=snprintf(page, count, LPU64"\n", (__u64)(mystats.f_blocks)); 
+        return len;   
+}
+
+int rd_blkfree(char* page, char **start, off_t off,
+               int count, int *eof, void *data)
+{
+        struct obd_device* temp=(struct obd_device*)data;
+        struct statfs mystats;
+
+        int rc, len=0;
+
+        rc = vfs_statfs(temp->u.filter.fo_sb, &mystats);
+        if (rc) {
+                CERROR("obdfilter: statfs failed: rc %d\n", rc);
+                return 0;
+        }
+        len+=snprintf(page, count, LPU64"\n", (__u64)(mystats.f_bfree)); 
+        return len;     
+}
+
+int rd_kbfree(char* page, char **start, off_t off,
+              int count, int *eof, void *data)
+{ 
+        struct obd_device* temp=(struct obd_device*)data;
+        struct statfs mystats;
+
+        int rc, len=0, blk_size=0;
+
+        rc = vfs_statfs(temp->u.filter.fo_sb, &mystats);
+        if (rc) {
+                CERROR("obdfilter: statfs failed: rc %d\n", rc);
+                return 0;
+        }
+        blk_size=mystats.f_bsize;
+
+        len+=snprintf(page, count, LPU64"\n", \
+                      (__u64)((mystats.f_bfree)/(blk_size*1024))); 
+        return len;
+                
+}
+
+int rd_fstype(char* page, char **start, off_t off,
+                  int count, int *eof, void *data)
+{
+        
+        struct obd_device* temp=(struct obd_device*)data;
+        int len=0;
+        
+        len+=snprintf(page, count, "%s\n", temp->u.filter.fo_fstype);
+        return len;
+        
+}
+
+lprocfs_vars_t snmp_var_nm_1[]={
+        {"snmp/uuid", rd_uuid, 0},
+        {"snmp/f_blocksize",rd_blksize, 0},
+        {"snmp/f_blockstotal",rd_blktotal, 0},
+        {"snmp/f_blocksfree",rd_blkfree, 0},
+        {"snmp/f_kbytesfree", rd_kbfree, 0},
+        {"snmp/f_fstype", rd_fstype, 0},
+        {0}
+};