File containing read/write fptr implementations for MDS. To be added to make path...

diff --git a/lustre/mds/lproc_mds.c b/lustre/mds/lproc_mds.c
new file mode 100644 (file)
index 0000000..9302240
--- /dev/null
+++ b/lustre/mds/lproc_mds.c
@@ -0,0 +1,177 @@
+/* -*- 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)
+{
+        struct obd_device* temp=(struct obd_device*)data;
+        int len=0;
+        len+=snprintf(page, count, "%s\n", temp->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 mds_obd *mds=&temp->u.mds;
+        struct statfs mystats;
+        int rc, len=0;
+        
+        rc = vfs_statfs(mds->mds_sb, &mystats);
+        if (rc) {
+                CERROR("mds: 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 mds_obd *mds=&temp->u.mds;
+        struct statfs mystats;
+        int rc, len=0;
+        
+        rc = vfs_statfs(mds->mds_sb, &mystats);
+        if (rc) {
+                CERROR("mds: 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 mds_obd *mds=&temp->u.mds;
+        struct statfs mystats;
+        int rc, len=0;
+        
+        rc = vfs_statfs(mds->mds_sb, &mystats);
+        if (rc) {
+                CERROR("mds: 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 mds_obd *mds=&temp->u.mds;
+        struct statfs mystats;
+        int rc, blk_size, len=0;
+        
+        rc = vfs_statfs(mds->mds_sb, &mystats);
+        if (rc) {
+                CERROR("mds: 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;
+        struct mds_obd *mds=&temp->u.mds;
+        int len=0;
+        len+=snprintf(page, count, "%s\n", mds->mds_fstype); 
+        return len;  
+ 
+}
+
+int rd_ffiles(char* page, char **start, off_t off,
+               int count, int *eof, void *data)
+{
+        struct obd_device* temp=(struct obd_device*)data;
+        struct mds_obd *mds=&temp->u.mds;
+        struct statfs mystats;
+        int rc, len=0;
+        
+        rc = vfs_statfs(mds->mds_sb, &mystats);
+        if (rc) {
+                CERROR("mds: statfs failed: rc %d\n", rc);
+                return 0;
+        }
+        
+        len+=snprintf(page, count, LPU64"\n", \
+                      (__u64)(mystats.f_files));
+        return len;  
+
+        
+}
+
+int rd_inodesfree(char* page, char **start, off_t off,
+                 int count, int *eof, void *data)
+{
+        struct obd_device* temp=(struct obd_device*)data;
+        struct mds_obd *mds=&temp->u.mds;
+        struct statfs mystats;
+        int rc, len=0;
+        
+        rc = vfs_statfs(mds->mds_sb, &mystats);
+        if (rc) {
+                CERROR("mds: statfs failed: rc %d\n", rc);
+                return 0;
+        }
+        
+        len+=snprintf(page, count, LPU64"\n", \
+                      (__u64)(mystats.f_ffree));
+        return len; 
+}
+
+int rd_filesets(char* page, char **start, off_t off,
+                 int count, int *eof, void *data)
+{
+        return 0;
+}
+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},
+        {"snmp/f_files", rd_ffiles, 0},
+        {"snmp/f_inodesfree", rd_inodesfree, 0},
+        {"snmp/f_filesets", rd_filesets, 0},
+        {0}
+};