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[fs/lustre-release.git] / lustre / obdclass / lprocfs_status.c
index c743e47..8787a3e 100644 (file)
@@ -1,23 +1,41 @@
 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
  * vim:expandtab:shiftwidth=8:tabstop=8:
  *
- *  Copyright (C) 2002, 2003 Cluster File Systems, Inc.
- *   Author: Hariharan Thantry <thantry@users.sourceforge.net>
+ * GPL HEADER START
  *
- *   This file is part of Lustre, http://www.lustre.org.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
- *   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.
+ * 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.
  *
- *   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.
+ * 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
- *   along with Lustre; if not, write to the Free Software
- *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * 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.
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright  2008 Sun Microsystems, Inc. All rights reserved
+ * Use is subject to license terms.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ *
+ * lustre/obdclass/lprocfs_status.c
+ *
+ * Author: Hariharan Thantry <thantry@users.sourceforge.net>
  */
 
 #ifndef EXPORT_SYMTAB
 #endif
 #define DEBUG_SUBSYSTEM S_CLASS
 
-#ifdef __KERNEL__
-# include <linux/config.h>
-# include <linux/module.h>
-# include <linux/version.h>
-# include <linux/slab.h>
-# include <linux/types.h>
-# if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
-#  include <asm/statfs.h>
-# endif
-# include <linux/seq_file.h>
-#else /* __KERNEL__ */
+#ifndef __KERNEL__
 # include <liblustre.h>
 #endif
 
-#include <linux/obd_class.h>
-#include <linux/lprocfs_status.h>
-#include <linux/lustre_fsfilt.h>
+#include <obd_class.h>
+#include <lprocfs_status.h>
+#include <lustre_fsfilt.h>
+
+#if defined(LPROCFS)
+
+#define MAX_STRING_SIZE 128
 
-#if defined(LPROCFS) && defined(__KERNEL__)
+/* for bug 10866, global variable */
+DECLARE_RWSEM(_lprocfs_lock);
+EXPORT_SYMBOL(_lprocfs_lock);
+
+int lprocfs_seq_release(struct inode *inode, struct file *file)
+{
+        LPROCFS_EXIT();
+        return seq_release(inode, file);
+}
+EXPORT_SYMBOL(lprocfs_seq_release);
 
 struct proc_dir_entry *lprocfs_srch(struct proc_dir_entry *head,
                                     const char *name)
@@ -52,19 +73,198 @@ struct proc_dir_entry *lprocfs_srch(struct proc_dir_entry *head,
 
         if (head == NULL)
                 return NULL;
+        LPROCFS_ENTRY();
 
         temp = head->subdir;
         while (temp != NULL) {
-                if (strcmp(temp->name, name) == 0)
+                if (strcmp(temp->name, name) == 0) {
+                        LPROCFS_EXIT();
                         return temp;
+                }
 
                 temp = temp->next;
         }
+        LPROCFS_EXIT();
         return NULL;
 }
 
 /* lprocfs API calls */
 
+/* Function that emulates snprintf but also has the side effect of advancing
+   the page pointer for the next write into the buffer, incrementing the total
+   length written to the buffer, and decrementing the size left in the
+   buffer. */
+static int lprocfs_obd_snprintf(char **page, int end, int *len,
+                                const char *format, ...)
+{
+        va_list list;
+        int n;
+
+        if (*len >= end)
+                return 0;
+
+        va_start(list, format);
+        n = vsnprintf(*page, end - *len, format, list);
+        va_end(list);
+
+        *page += n; *len += n;
+        return n;
+}
+
+cfs_proc_dir_entry_t *lprocfs_add_simple(struct proc_dir_entry *root,
+                                         char *name,
+                                         read_proc_t *read_proc,
+                                         write_proc_t *write_proc,
+                                         void *data,
+                                         struct file_operations *fops)
+{
+        cfs_proc_dir_entry_t *proc;
+        mode_t mode = 0;
+
+        if (root == NULL || name == NULL)
+                return ERR_PTR(-EINVAL);
+        if (read_proc)
+                mode = 0444;
+        if (write_proc)
+                mode |= 0200;
+        if (fops)
+                mode = 0644;
+        proc = create_proc_entry(name, mode, root);
+        if (!proc) {
+                CERROR("LprocFS: No memory to create /proc entry %s", name);
+                return ERR_PTR(-ENOMEM);
+        }
+        proc->read_proc = read_proc;
+        proc->write_proc = write_proc;
+        proc->data = data;
+        if (fops)
+                proc->proc_fops = fops;
+        return proc;
+}
+
+struct proc_dir_entry *lprocfs_add_symlink(const char *name,
+                        struct proc_dir_entry *parent, const char *dest)
+{
+        struct proc_dir_entry *entry;
+
+        if (parent == NULL || dest == NULL)
+                return NULL;
+
+        entry = proc_symlink(name, parent, dest);
+        if (entry == NULL)
+                CERROR("LprocFS: Could not create symbolic link from %s to %s",
+                        name, dest);
+        return entry;
+}
+
+static ssize_t lprocfs_fops_read(struct file *f, char __user *buf,
+                                 size_t size, loff_t *ppos)
+{
+        struct proc_dir_entry *dp = PDE(f->f_dentry->d_inode);
+        char *page, *start = NULL;
+        int rc = 0, eof = 1, count;
+
+        if (*ppos >= CFS_PAGE_SIZE)
+                return 0;
+
+        page = (char *)__get_free_page(GFP_KERNEL);
+        if (page == NULL)
+                return -ENOMEM;
+
+        LPROCFS_ENTRY();
+        OBD_FAIL_TIMEOUT(OBD_FAIL_LPROC_REMOVE, 10);
+        if (!dp->deleted && dp->read_proc)
+                rc = dp->read_proc(page, &start, *ppos, CFS_PAGE_SIZE,
+                        &eof, dp->data);
+        LPROCFS_EXIT();
+        if (rc <= 0)
+                goto out;
+
+        /* for lustre proc read, the read count must be less than PAGE_SIZE */
+        LASSERT(eof == 1);
+
+        if (start == NULL) {
+                rc -= *ppos;
+                if (rc < 0)
+                        rc = 0;
+                if (rc == 0)
+                        goto out;
+                start = page + *ppos;
+        } else if (start < page) {
+                start = page;
+        }
+
+        count = (rc < size) ? rc : size;
+        if (copy_to_user(buf, start, count)) {
+                rc = -EFAULT;
+                goto out;
+        }
+        *ppos += count;
+
+out:
+        free_page((unsigned long)page);
+        return rc;
+}
+
+static ssize_t lprocfs_fops_write(struct file *f, const char __user *buf, size_t size, loff_t *ppos)
+{
+        struct proc_dir_entry *dp = PDE(f->f_dentry->d_inode);
+        int rc = -EIO;
+
+        LPROCFS_ENTRY();
+        if (!dp->deleted && dp->write_proc)
+                rc = dp->write_proc(f, buf, size, dp->data);
+        LPROCFS_EXIT();
+        return rc;
+}
+
+static struct file_operations lprocfs_generic_fops = {
+        .owner = THIS_MODULE,
+        .read = lprocfs_fops_read,
+        .write = lprocfs_fops_write,
+};
+
+int lprocfs_evict_client_open(struct inode *inode, struct file *f)
+{
+        struct proc_dir_entry *dp = PDE(f->f_dentry->d_inode);
+        struct obd_device *obd = dp->data;
+
+        atomic_inc(&obd->obd_evict_inprogress);
+
+        return 0;
+}
+
+int lprocfs_evict_client_release(struct inode *inode, struct file *f)
+{
+        struct proc_dir_entry *dp = PDE(f->f_dentry->d_inode);
+        struct obd_device *obd = dp->data;
+
+        atomic_dec(&obd->obd_evict_inprogress);
+        wake_up(&obd->obd_evict_inprogress_waitq);
+
+        return 0;
+}
+
+struct file_operations lprocfs_evict_client_fops = {
+        .owner = THIS_MODULE,
+        .read = lprocfs_fops_read,
+        .write = lprocfs_fops_write,
+        .open = lprocfs_evict_client_open,
+        .release = lprocfs_evict_client_release,
+};
+EXPORT_SYMBOL(lprocfs_evict_client_fops);
+
+/**
+ * Add /proc entries.
+ *
+ * \param root [in]  The parent proc entry on which new entry will be added.
+ * \param list [in]  Array of proc entries to be added.
+ * \param data [in]  The argument to be passed when entries read/write routines
+ *                   are called through /proc file.
+ *
+ * \retval 0   on success
+ *         < 0 on error
+ */
 int lprocfs_add_vars(struct proc_dir_entry *root, struct lprocfs_vars *list,
                      void *data)
 {
@@ -104,10 +304,14 @@ int lprocfs_add_vars(struct proc_dir_entry *root, struct lprocfs_vars *list,
                                             proc_mkdir(cur, cur_root));
                         } else if (proc == NULL) {
                                 mode_t mode = 0;
-                                if (list->read_fptr)
-                                        mode = 0444;
-                                if (list->write_fptr)
-                                        mode |= 0200;
+                                if (list->proc_mode != 0000) {
+                                        mode = list->proc_mode;
+                                } else {
+                                        if (list->read_fptr)
+                                                mode = 0444;
+                                        if (list->write_fptr)
+                                                mode |= 0200;
+                                }
                                 proc = create_proc_entry(cur, mode, cur_root);
                         }
                 }
@@ -121,6 +325,10 @@ int lprocfs_add_vars(struct proc_dir_entry *root, struct lprocfs_vars *list,
                         return -ENOMEM;
                 }
 
+                if (list->fops)
+                        proc->proc_fops = list->fops;
+                else
+                        proc->proc_fops = &lprocfs_generic_fops;
                 proc->read_proc = list->read_fptr;
                 proc->write_proc = list->write_fptr;
                 proc->data = (list->data ? list->data : data);
@@ -129,16 +337,21 @@ int lprocfs_add_vars(struct proc_dir_entry *root, struct lprocfs_vars *list,
         return 0;
 }
 
-void lprocfs_remove(struct proc_dir_entry *root)
+void lprocfs_remove(struct proc_dir_entry **rooth)
 {
+        struct proc_dir_entry *root = *rooth;
         struct proc_dir_entry *temp = root;
         struct proc_dir_entry *rm_entry;
         struct proc_dir_entry *parent;
 
-        LASSERT(root != NULL);
+        if (!root)
+                return;
+        *rooth = NULL;
+
         parent = root->parent;
         LASSERT(parent != NULL);
+        LPROCFS_WRITE_ENTRY(); /* search vs remove race */
+
         while (1) {
                 while (temp->subdir != NULL)
                         temp = temp->subdir;
@@ -152,10 +365,20 @@ void lprocfs_remove(struct proc_dir_entry *root)
                          "0x%p  %s/%s len %d\n", rm_entry, temp->name,
                          rm_entry->name, (int)strlen(rm_entry->name));
 
-                remove_proc_entry(rm_entry->name, rm_entry->parent);
+                /* Now, the rm_entry->deleted flags is protected
+                 * by _lprocfs_lock. */
+                rm_entry->data = NULL;
+                remove_proc_entry(rm_entry->name, temp);
                 if (temp == parent)
                         break;
         }
+        LPROCFS_WRITE_EXIT();
+}
+
+void lprocfs_remove_proc_entry(const char *name, struct proc_dir_entry *parent)
+{
+        LASSERT(parent != NULL);
+        remove_proc_entry(name, parent);
 }
 
 struct proc_dir_entry *lprocfs_register(const char *name,
@@ -175,7 +398,7 @@ struct proc_dir_entry *lprocfs_register(const char *name,
         if (newchild != NULL && list != NULL) {
                 int rc = lprocfs_add_vars(newchild, list, data);
                 if (rc) {
-                        lprocfs_remove(newchild);
+                        lprocfs_remove(&newchild);
                         return ERR_PTR(rc);
                 }
         }
@@ -183,6 +406,31 @@ struct proc_dir_entry *lprocfs_register(const char *name,
 }
 
 /* Generic callbacks */
+int lprocfs_rd_uint(char *page, char **start, off_t off,
+                    int count, int *eof, void *data)
+{
+        unsigned int *temp = (unsigned int *)data;
+        return snprintf(page, count, "%u\n", *temp);
+}
+
+int lprocfs_wr_uint(struct file *file, const char *buffer,
+                    unsigned long count, void *data)
+{
+        unsigned *p = data;
+        char dummy[MAX_STRING_SIZE + 1], *end;
+        unsigned long tmp;
+
+        dummy[MAX_STRING_SIZE] = '\0';
+        if (copy_from_user(dummy, buffer, MAX_STRING_SIZE))
+                return -EFAULT;
+
+        tmp = simple_strtoul(dummy, &end, 0);
+        if (dummy == end)
+                return -EINVAL;
+
+        *p = (unsigned int)tmp;
+        return count;
+}
 
 int lprocfs_rd_u64(char *page, char **start, off_t off,
                    int count, int *eof, void *data)
@@ -192,14 +440,41 @@ int lprocfs_rd_u64(char *page, char **start, off_t off,
         return snprintf(page, count, LPU64"\n", *(__u64 *)data);
 }
 
+int lprocfs_rd_atomic(char *page, char **start, off_t off,
+                   int count, int *eof, void *data)
+{
+        atomic_t *atom = (atomic_t *)data;
+        LASSERT(atom != NULL);
+        *eof = 1;
+        return snprintf(page, count, "%d\n", atomic_read(atom));
+}
+
+int lprocfs_wr_atomic(struct file *file, const char *buffer,
+                      unsigned long count, void *data)
+{
+        atomic_t *atm = data;
+        int val = 0;
+        int rc;
+
+        rc = lprocfs_write_helper(buffer, count, &val);
+        if (rc < 0)
+                return rc;
+
+        if (val <= 0)
+                return -ERANGE;
+
+        atomic_set(atm, val);
+        return count;
+}
+
 int lprocfs_rd_uuid(char *page, char **start, off_t off, int count,
                     int *eof, void *data)
 {
-        struct obd_device *dev = (struct obd_device*)data;
+        struct obd_device *obd = (struct obd_device*)data;
 
-        LASSERT(dev != NULL);
+        LASSERT(obd != NULL);
         *eof = 1;
-        return snprintf(page, count, "%s\n", dev->obd_uuid.uuid);
+        return snprintf(page, count, "%s\n", obd->obd_uuid.uuid);
 }
 
 int lprocfs_rd_name(char *page, char **start, off_t off, int count,
@@ -228,7 +503,8 @@ int lprocfs_rd_blksize(char *page, char **start, off_t off, int count,
                        int *eof, void *data)
 {
         struct obd_statfs osfs;
-        int rc = obd_statfs(data, &osfs, jiffies - HZ);
+        int rc = obd_statfs(data, &osfs, cfs_time_current_64() - HZ,
+                            OBD_STATFS_NODELAY);
         if (!rc) {
                 *eof = 1;
                 rc = snprintf(page, count, "%u\n", osfs.os_bsize);
@@ -240,7 +516,8 @@ int lprocfs_rd_kbytestotal(char *page, char **start, off_t off, int count,
                            int *eof, void *data)
 {
         struct obd_statfs osfs;
-        int rc = obd_statfs(data, &osfs, jiffies - HZ);
+        int rc = obd_statfs(data, &osfs, cfs_time_current_64() - HZ,
+                            OBD_STATFS_NODELAY);
         if (!rc) {
                 __u32 blk_size = osfs.os_bsize >> 10;
                 __u64 result = osfs.os_blocks;
@@ -258,7 +535,8 @@ int lprocfs_rd_kbytesfree(char *page, char **start, off_t off, int count,
                           int *eof, void *data)
 {
         struct obd_statfs osfs;
-        int rc = obd_statfs(data, &osfs, jiffies - HZ);
+        int rc = obd_statfs(data, &osfs, cfs_time_current_64() - HZ,
+                            OBD_STATFS_NODELAY);
         if (!rc) {
                 __u32 blk_size = osfs.os_bsize >> 10;
                 __u64 result = osfs.os_bfree;
@@ -276,7 +554,8 @@ int lprocfs_rd_kbytesavail(char *page, char **start, off_t off, int count,
                            int *eof, void *data)
 {
         struct obd_statfs osfs;
-        int rc = obd_statfs(data, &osfs, jiffies - HZ);
+        int rc = obd_statfs(data, &osfs, cfs_time_current_64() - HZ,
+                            OBD_STATFS_NODELAY);
         if (!rc) {
                 __u32 blk_size = osfs.os_bsize >> 10;
                 __u64 result = osfs.os_bavail;
@@ -294,7 +573,8 @@ int lprocfs_rd_filestotal(char *page, char **start, off_t off, int count,
                           int *eof, void *data)
 {
         struct obd_statfs osfs;
-        int rc = obd_statfs(data, &osfs, jiffies - HZ);
+        int rc = obd_statfs(data, &osfs, cfs_time_current_64() - HZ,
+                            OBD_STATFS_NODELAY);
         if (!rc) {
                 *eof = 1;
                 rc = snprintf(page, count, LPU64"\n", osfs.os_files);
@@ -307,7 +587,8 @@ int lprocfs_rd_filesfree(char *page, char **start, off_t off, int count,
                          int *eof, void *data)
 {
         struct obd_statfs osfs;
-        int rc = obd_statfs(data, &osfs, jiffies - HZ);
+        int rc = obd_statfs(data, &osfs, cfs_time_current_64() - HZ,
+                            OBD_STATFS_NODELAY);
         if (!rc) {
                 *eof = 1;
                 rc = snprintf(page, count, LPU64"\n", osfs.os_ffree);
@@ -315,26 +596,25 @@ int lprocfs_rd_filesfree(char *page, char **start, off_t off, int count,
         return rc;
 }
 
-int lprocfs_rd_filegroups(char *page, char **start, off_t off, int count,
-                          int *eof, void *data)
-{
-        *eof = 1;
-        return snprintf(page, count, "unimplemented\n");
-}
-
 int lprocfs_rd_server_uuid(char *page, char **start, off_t off, int count,
                            int *eof, void *data)
 {
         struct obd_device *obd = (struct obd_device *)data;
         struct obd_import *imp;
         char *imp_state_name = NULL;
-        
+        int rc = 0;
+
         LASSERT(obd != NULL);
+        LPROCFS_CLIMP_CHECK(obd);
         imp = obd->u.cli.cl_import;
         imp_state_name = ptlrpc_import_state_name(imp->imp_state);
         *eof = 1;
-        return snprintf(page, count, "%s\t%s\n",
-                        imp->imp_target_uuid.uuid, imp_state_name);
+        rc = snprintf(page, count, "%s\t%s%s\n",
+                      obd2cli_tgt(obd), imp_state_name,
+                      imp->imp_deactive ? "\tDEACTIVATED" : "");
+
+        LPROCFS_CLIMP_EXIT(obd);
+        return rc;
 }
 
 int lprocfs_rd_conn_uuid(char *page, char **start, off_t off, int count,
@@ -342,12 +622,225 @@ int lprocfs_rd_conn_uuid(char *page, char **start, off_t off, int count,
 {
         struct obd_device *obd = (struct obd_device*)data;
         struct ptlrpc_connection *conn;
+        int rc = 0;
 
         LASSERT(obd != NULL);
+
+        LPROCFS_CLIMP_CHECK(obd);
         conn = obd->u.cli.cl_import->imp_connection;
         LASSERT(conn != NULL);
         *eof = 1;
-        return snprintf(page, count, "%s\n", conn->c_remote_uuid.uuid);
+        if (obd->u.cli.cl_import) {
+                rc = snprintf(page, count, "%s\n",
+                              conn->c_remote_uuid.uuid);
+        } else {
+                rc = snprintf(page, count, "%s\n", "<none>");
+        }
+
+        LPROCFS_CLIMP_EXIT(obd);
+        return rc;
+}
+
+#define flag2str(flag) \
+        if (imp->imp_##flag && max - len > 0) \
+                len += snprintf(str + len, max - len, " " #flag);
+        
+/**
+ * Append a space separated list of current set flags to str.
+ */
+static int obd_import_flags2str(struct obd_import *imp, char *str, 
+                                          int max)
+{
+        int len = 0;
+        
+        if (imp->imp_obd->obd_no_recov)
+                len += snprintf(str, max - len, " no_recov");
+
+        flag2str(invalid);
+        flag2str(deactive);
+        flag2str(replayable);
+        flag2str(pingable);
+        flag2str(recon_bk);
+        flag2str(last_recon);
+        return len;
+}
+#undef flags2str
+
+int lprocfs_rd_import(char *page, char **start, off_t off, int count,
+                      int *eof, void *data)
+{
+        struct obd_device *obd = (struct obd_device *)data;
+        struct obd_import *imp;
+        char *imp_state_name = NULL;
+        int rc = 0;
+
+        LASSERT(obd != NULL);
+        LPROCFS_CLIMP_CHECK(obd);
+        imp = obd->u.cli.cl_import;
+        imp_state_name = ptlrpc_import_state_name(imp->imp_state);
+        *eof = 1;
+
+        rc = snprintf(page, count, 
+                      "import: %s\n"
+                      "    target: %s@%s\n"
+                      "    state: %s\n"
+                      "    inflight: %u\n"
+                      "    conn_cnt: %u\n"
+                      "    generation: %u\n"
+                      "    inval_cnt: %u\n"
+                      "    last_replay_transno: "LPU64"\n"
+                      "    peer_committed_transno: "LPU64"\n"
+                      "    last_trasno_checked: "LPU64"\n"
+                      "    flags:",
+                      obd->obd_name,
+                      obd2cli_tgt(obd), imp->imp_connection->c_remote_uuid.uuid,
+                      imp_state_name,
+                      atomic_read(&imp->imp_inflight),
+                      imp->imp_conn_cnt,
+                      imp->imp_generation,
+                      atomic_read(&imp->imp_inval_count),
+                      imp->imp_last_replay_transno,
+                      imp->imp_peer_committed_transno,
+                      imp->imp_last_transno_checked);
+        rc += obd_import_flags2str(imp, page + rc, count - rc);
+        rc += snprintf(page+rc, count - rc, "\n");
+        LPROCFS_CLIMP_EXIT(obd);
+        return rc;
+}
+
+int lprocfs_at_hist_helper(char *page, int count, int rc,
+                           struct adaptive_timeout *at)
+{
+        int i;
+        for (i = 0; i < AT_BINS; i++)
+                rc += snprintf(page + rc, count - rc, "%3u ", at->at_hist[i]);
+        rc += snprintf(page + rc, count - rc, "\n");
+        return rc;
+}
+
+/* See also ptlrpc_lprocfs_rd_timeouts */
+int lprocfs_rd_timeouts(char *page, char **start, off_t off, int count,
+                        int *eof, void *data)
+{
+        struct obd_device *obd = (struct obd_device *)data;
+        struct obd_import *imp;
+        unsigned int cur, worst;
+        time_t now, worstt;
+        struct dhms ts;
+        int i, rc = 0;
+
+        LASSERT(obd != NULL);
+        LPROCFS_CLIMP_CHECK(obd);
+        imp = obd->u.cli.cl_import;
+        *eof = 1;
+
+        now = cfs_time_current_sec();
+
+        /* Some network health info for kicks */
+        s2dhms(&ts, now - imp->imp_last_reply_time);
+        rc += snprintf(page + rc, count - rc,
+                       "%-10s : %ld, "DHMS_FMT" ago\n",
+                       "last reply", imp->imp_last_reply_time, DHMS_VARS(&ts));
+
+
+        cur = at_get(&imp->imp_at.iat_net_latency);
+        worst = imp->imp_at.iat_net_latency.at_worst_ever;
+        worstt = imp->imp_at.iat_net_latency.at_worst_time;
+        s2dhms(&ts, now - worstt);
+        rc += snprintf(page + rc, count - rc,
+                       "%-10s : cur %3u  worst %3u (at %ld, "DHMS_FMT" ago) ",
+                       "network", cur, worst, worstt, DHMS_VARS(&ts));
+        rc = lprocfs_at_hist_helper(page, count, rc,
+                                    &imp->imp_at.iat_net_latency);
+
+        for(i = 0; i < IMP_AT_MAX_PORTALS; i++) {
+                if (imp->imp_at.iat_portal[i] == 0)
+                        break;
+                cur = at_get(&imp->imp_at.iat_service_estimate[i]);
+                worst = imp->imp_at.iat_service_estimate[i].at_worst_ever;
+                worstt = imp->imp_at.iat_service_estimate[i].at_worst_time;
+                s2dhms(&ts, now - worstt);
+                rc += snprintf(page + rc, count - rc,
+                               "portal %-2d  : cur %3u  worst %3u (at %ld, "
+                               DHMS_FMT" ago) ", imp->imp_at.iat_portal[i],
+                               cur, worst, worstt, DHMS_VARS(&ts));
+                rc = lprocfs_at_hist_helper(page, count, rc,
+                                          &imp->imp_at.iat_service_estimate[i]);
+        }
+
+        LPROCFS_CLIMP_EXIT(obd);
+        return rc;
+}
+
+static const char *obd_connect_names[] = {
+        "read_only",
+        "lov_index",
+        "unused",
+        "write_grant",
+        "server_lock",
+        "version",
+        "request_portal",
+        "acl",
+        "xattr",
+        "create_on_write",
+        "truncate_lock",
+        "initial_transno",
+        "inode_bit_locks",
+        "join_file",
+        "getattr_by_fid",
+        "no_oh_for_devices",
+        "local_client",
+        "remote_client",
+        "max_byte_per_rpc",
+        "64bit_qdata",
+        "mds_capability",
+        "oss_capability",
+        "early_lock_cancel",
+        "size_on_mds",
+        "adaptive_timeouts",
+        "lru_resize",
+        "mds_mds_connection",
+        "real_conn",
+        "change_qunit_size",
+        "alt_checksum_algorithm",
+        "fid_is_enabled",
+        "version_recovery",
+        "pools",
+        NULL
+};
+
+int lprocfs_rd_connect_flags(char *page, char **start, off_t off,
+                             int count, int *eof, void *data)
+{
+        struct obd_device *obd = data;
+        __u64 mask = 1, flags;
+        int i, ret = 0;
+
+        LPROCFS_CLIMP_CHECK(obd);
+        flags = obd->u.cli.cl_import->imp_connect_data.ocd_connect_flags;
+        ret = snprintf(page, count, "flags="LPX64"\n", flags);
+        for (i = 0; obd_connect_names[i] != NULL; i++, mask <<= 1) {
+                if (flags & mask)
+                        ret += snprintf(page + ret, count - ret, "%s\n",
+                                        obd_connect_names[i]);
+        }
+        if (flags & ~(mask - 1))
+                ret += snprintf(page + ret, count - ret,
+                                "unknown flags "LPX64"\n", flags & ~(mask - 1));
+
+        LPROCFS_CLIMP_EXIT(obd);
+        return ret;
+}
+EXPORT_SYMBOL(lprocfs_rd_connect_flags);
+
+int lprocfs_rd_num_exports(char *page, char **start, off_t off, int count,
+                           int *eof,  void *data)
+{
+        struct obd_device *obd = (struct obd_device*)data;
+
+        LASSERT(obd != NULL);
+        *eof = 1;
+        return snprintf(page, count, "%u\n", obd->obd_num_exports);
 }
 
 int lprocfs_rd_numrefs(char *page, char **start, off_t off, int count,
@@ -360,79 +853,192 @@ int lprocfs_rd_numrefs(char *page, char **start, off_t off, int count,
         return snprintf(page, count, "%d\n", class->typ_refcnt);
 }
 
-int lprocfs_obd_attach(struct obd_device *dev, struct lprocfs_vars *list)
+int lprocfs_obd_setup(struct obd_device *obd, struct lprocfs_vars *list)
 {
         int rc = 0;
 
-        LASSERT(dev != NULL);
-        LASSERT(dev->obd_type != NULL);
-        LASSERT(dev->obd_type->typ_procroot != NULL);
-
-        dev->obd_proc_entry = lprocfs_register(dev->obd_name,
-                                               dev->obd_type->typ_procroot,
-                                               list, dev);
-        if (IS_ERR(dev->obd_proc_entry)) {
-                rc = PTR_ERR(dev->obd_proc_entry);
-                dev->obd_proc_entry = NULL;
+        LASSERT(obd != NULL);
+        LASSERT(obd->obd_magic == OBD_DEVICE_MAGIC);
+        LASSERT(obd->obd_type->typ_procroot != NULL);
+
+        obd->obd_proc_entry = lprocfs_register(obd->obd_name,
+                                               obd->obd_type->typ_procroot,
+                                               list, obd);
+        if (IS_ERR(obd->obd_proc_entry)) {
+                rc = PTR_ERR(obd->obd_proc_entry);
+                CERROR("error %d setting up lprocfs for %s\n",rc,obd->obd_name);
+                obd->obd_proc_entry = NULL;
         }
         return rc;
 }
 
-int lprocfs_obd_detach(struct obd_device *dev)
+int lprocfs_obd_cleanup(struct obd_device *obd)
 {
-        if (dev && dev->obd_proc_entry) {
-                lprocfs_remove(dev->obd_proc_entry);
-                dev->obd_proc_entry = NULL;
+        if (!obd)
+                return -EINVAL;
+        if (obd->obd_proc_exports_entry) {
+                /* Should be no exports left */
+                LASSERT(obd->obd_proc_exports_entry->subdir == NULL);
+                lprocfs_remove(&obd->obd_proc_exports_entry);
         }
+        lprocfs_remove(&obd->obd_proc_entry);
         return 0;
 }
 
-struct lprocfs_stats *lprocfs_alloc_stats(unsigned int num)
+static void lprocfs_free_client_stats(struct nid_stat *client_stat)
+{
+        CDEBUG(D_CONFIG, "stat %p - data %p/%p/%p\n", client_stat,
+               client_stat->nid_proc, client_stat->nid_stats,
+               client_stat->nid_brw_stats);
+
+        LASSERTF(client_stat->nid_exp_ref_count == 0, "count %d\n",
+                 client_stat->nid_exp_ref_count);
+
+        hlist_del_init(&client_stat->nid_hash);
+
+        if (client_stat->nid_proc)
+                lprocfs_remove(&client_stat->nid_proc);
+
+        if (client_stat->nid_stats)
+                lprocfs_free_stats(&client_stat->nid_stats);
+
+        if (client_stat->nid_brw_stats)
+                OBD_FREE_PTR(client_stat->nid_brw_stats);
+
+        if (client_stat->nid_ldlm_stats)
+                lprocfs_free_stats(&client_stat->nid_ldlm_stats);
+
+        OBD_FREE_PTR(client_stat);
+        return;
+
+}
+
+void lprocfs_free_per_client_stats(struct obd_device *obd)
+{
+        struct nid_stat *stat;
+        ENTRY;
+
+        /* we need extra list - because hash_exit called to early */
+        /* not need locking because all clients is died */
+        while(!list_empty(&obd->obd_nid_stats)) {
+                stat = list_entry(obd->obd_nid_stats.next,
+                                  struct nid_stat, nid_list);
+                list_del_init(&stat->nid_list);
+                lprocfs_free_client_stats(stat);
+        }
+
+        EXIT;
+}
+
+struct lprocfs_stats *lprocfs_alloc_stats(unsigned int num,
+                                          enum lprocfs_stats_flags flags)
 {
         struct lprocfs_stats *stats;
-        struct lprocfs_percpu *percpu;
         unsigned int percpusize;
-        unsigned int i;
+        unsigned int i, j;
+        unsigned int num_cpu;
 
         if (num == 0)
                 return NULL;
 
-        OBD_ALLOC(stats, offsetof(typeof(*stats), ls_percpu[num_online_cpus()]));
+        if (flags & LPROCFS_STATS_FLAG_NOPERCPU)
+                num_cpu = 1;
+        else
+                num_cpu = num_possible_cpus();
+
+        OBD_ALLOC(stats, offsetof(typeof(*stats), ls_percpu[num_cpu]));
         if (stats == NULL)
                 return NULL;
 
-        percpusize = L1_CACHE_ALIGN(offsetof(typeof(*percpu), lp_cntr[num]));
-        stats->ls_percpu_size = num_online_cpus() * percpusize;
-        OBD_ALLOC(stats->ls_percpu[0], stats->ls_percpu_size);
+        if (flags & LPROCFS_STATS_FLAG_NOPERCPU) {
+                stats->ls_flags = flags;
+                spin_lock_init(&stats->ls_lock);
+                /* Use this lock only if there are no percpu areas */
+        } else {
+                stats->ls_flags = 0;
+        }
+
+        percpusize = offsetof(struct lprocfs_percpu, lp_cntr[num]);
+        if (num_cpu > 1)
+                percpusize = L1_CACHE_ALIGN(percpusize);
+
+        for (i = 0; i < num_cpu; i++) {
+                OBD_ALLOC(stats->ls_percpu[i], percpusize);
+                if (stats->ls_percpu[i] == NULL) {
+                        for (j = 0; j < i; j++) {
+                                OBD_FREE(stats->ls_percpu[j], percpusize);
+                                stats->ls_percpu[j] = NULL;
+                        }
+                        break;
+                }
+        }
         if (stats->ls_percpu[0] == NULL) {
                 OBD_FREE(stats, offsetof(typeof(*stats),
-                                         ls_percpu[num_online_cpus()]));
+                                         ls_percpu[num_cpu]));
                 return NULL;
         }
 
         stats->ls_num = num;
-        for (i = 1; i < num_online_cpus(); i++)
-                stats->ls_percpu[i] = (void *)(stats->ls_percpu[i - 1]) +
-                        percpusize;
-
         return stats;
 }
 
-void lprocfs_free_stats(struct lprocfs_stats *stats)
+void lprocfs_free_stats(struct lprocfs_stats **statsh)
 {
-        if (stats->ls_num == 0)
+        struct lprocfs_stats *stats = *statsh;
+        unsigned int num_cpu;
+        unsigned int percpusize;
+        unsigned int i;
+
+        if (stats == NULL || stats->ls_num == 0)
                 return;
+        *statsh = NULL;
+
+        if (stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU)
+                num_cpu = 1;
+        else
+                num_cpu = num_possible_cpus();
+
+        percpusize = offsetof(struct lprocfs_percpu, lp_cntr[stats->ls_num]);
+        if (num_cpu > 1)
+                percpusize = L1_CACHE_ALIGN(percpusize);
+        for (i = 0; i < num_cpu; i++)
+                OBD_FREE(stats->ls_percpu[i], percpusize);
+        OBD_FREE(stats, offsetof(typeof(*stats), ls_percpu[num_cpu]));
+}
 
-        OBD_FREE(stats->ls_percpu[0], stats->ls_percpu_size);
-        OBD_FREE(stats, offsetof(typeof(*stats), ls_percpu[num_online_cpus()]));
+void lprocfs_clear_stats(struct lprocfs_stats *stats)
+{
+        struct lprocfs_counter *percpu_cntr;
+        int i,j;
+        unsigned int num_cpu;
+
+        num_cpu = lprocfs_stats_lock(stats, LPROCFS_GET_NUM_CPU);
+
+        for (i = 0; i < num_cpu; i++) {
+                for (j = 0; j < stats->ls_num; j++) {
+                        percpu_cntr = &(stats->ls_percpu[i])->lp_cntr[j];
+                        atomic_inc(&percpu_cntr->lc_cntl.la_entry);
+                        percpu_cntr->lc_count = 0;
+                        percpu_cntr->lc_sum = 0;
+                        percpu_cntr->lc_min = LC_MIN_INIT;
+                        percpu_cntr->lc_max = 0;
+                        percpu_cntr->lc_sumsquare = 0;
+                        atomic_inc(&percpu_cntr->lc_cntl.la_exit);
+                }
+        }
+
+        lprocfs_stats_unlock(stats);
 }
 
-/* Reset counter under lock */
-int lprocfs_counter_write(struct file *file, const char *buffer,
-                          unsigned long count, void *data)
+static ssize_t lprocfs_stats_seq_write(struct file *file, const char *buf,
+                                       size_t len, loff_t *off)
 {
-        /* not supported */
-        return 0;
+        struct seq_file *seq = file->private_data;
+        struct lprocfs_stats *stats = seq->private;
+
+        lprocfs_clear_stats(stats);
+
+        return len;
 }
 
 static void *lprocfs_stats_seq_start(struct seq_file *p, loff_t *pos)
@@ -460,8 +1066,9 @@ static int lprocfs_stats_seq_show(struct seq_file *p, void *v)
 {
        struct lprocfs_stats *stats = p->private;
        struct lprocfs_counter  *cntr = v;
-       struct lprocfs_counter  t, ret = { .lc_min = ~(__u64)0 };
-       int i, idx, rc;
+       struct lprocfs_counter  t, ret = { .lc_min = LC_MIN_INIT };
+       int i, idx, rc = 0;
+       unsigned int num_cpu;
 
        if (cntr == &(stats->ls_percpu[0])->lp_cntr[0]) {
                struct timeval now;
@@ -473,7 +1080,12 @@ static int lprocfs_stats_seq_show(struct seq_file *p, void *v)
        }
        idx = cntr - &(stats->ls_percpu[0])->lp_cntr[0];
 
-       for (i = 0; i < num_online_cpus(); i++) {
+       if (stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU)
+               num_cpu = 1;
+       else
+               num_cpu = num_possible_cpus();
+
+       for (i = 0; i < num_cpu; i++) {
                struct lprocfs_counter *percpu_cntr =
                        &(stats->ls_percpu[i])->lp_cntr[idx];
                int centry;
@@ -496,18 +1108,21 @@ static int lprocfs_stats_seq_show(struct seq_file *p, void *v)
                ret.lc_sumsquare += t.lc_sumsquare;
        }
 
-       rc = seq_printf(p, "%-25s "LPU64" samples [%s]", cntr->lc_name,
+       if (ret.lc_count == 0)
+               goto out;
+
+       rc = seq_printf(p, "%-25s "LPD64" samples [%s]", cntr->lc_name,
                        ret.lc_count, cntr->lc_units);
        if (rc < 0)
                goto out;
 
        if ((cntr->lc_config & LPROCFS_CNTR_AVGMINMAX) && (ret.lc_count > 0)) {
-               rc = seq_printf(p, " "LPU64" "LPU64" "LPU64,
+               rc = seq_printf(p, " "LPD64" "LPD64" "LPD64,
                                ret.lc_min, ret.lc_max, ret.lc_sum);
                if (rc < 0)
                        goto out;
                if (cntr->lc_config & LPROCFS_CNTR_STDDEV)
-                       rc = seq_printf(p, " "LPU64, ret.lc_sumsquare);
+                       rc = seq_printf(p, " "LPD64, ret.lc_sumsquare);
                if (rc < 0)
                        goto out;
        }
@@ -529,19 +1144,24 @@ static int lprocfs_stats_seq_open(struct inode *inode, struct file *file)
         struct seq_file *seq;
         int rc;
 
+        LPROCFS_ENTRY_AND_CHECK(dp);
         rc = seq_open(file, &lprocfs_stats_seq_sops);
-        if (rc)
+        if (rc) {
+                LPROCFS_EXIT();
                 return rc;
+        }
         seq = file->private_data;
         seq->private = dp->data;
         return 0;
 }
 
 struct file_operations lprocfs_stats_seq_fops = {
-        open:    lprocfs_stats_seq_open,
-        read:    seq_read,
-        llseek:  seq_lseek,
-        release: seq_release,
+        .owner   = THIS_MODULE,
+        .open    = lprocfs_stats_seq_open,
+        .read    = seq_read,
+        .write   = lprocfs_stats_seq_write,
+        .llseek  = seq_lseek,
+        .release = lprocfs_seq_release,
 };
 
 int lprocfs_register_stats(struct proc_dir_entry *root, const char *name,
@@ -550,12 +1170,11 @@ int lprocfs_register_stats(struct proc_dir_entry *root, const char *name,
         struct proc_dir_entry *entry;
         LASSERT(root != NULL);
 
-        entry = create_proc_entry(name, 0444, root);
+        entry = create_proc_entry(name, 0644, root);
         if (entry == NULL)
                 return -ENOMEM;
         entry->proc_fops = &lprocfs_stats_seq_fops;
         entry->data = (void *)stats;
-        entry->write_proc = lprocfs_counter_write;
         return 0;
 }
 
@@ -564,15 +1183,24 @@ void lprocfs_counter_init(struct lprocfs_stats *stats, int index,
 {
         struct lprocfs_counter *c;
         int i;
+        unsigned int num_cpu;
 
         LASSERT(stats != NULL);
-        for (i = 0; i < num_online_cpus(); i++) {
+
+        num_cpu = lprocfs_stats_lock(stats, LPROCFS_GET_NUM_CPU);
+
+        for (i = 0; i < num_cpu; i++) {
                 c = &(stats->ls_percpu[i]->lp_cntr[index]);
                 c->lc_config = conf;
-                c->lc_min = ~(__u64)0;
+                c->lc_count = 0;
+                c->lc_sum = 0;
+                c->lc_min = LC_MIN_INIT;
+                c->lc_max = 0;
                 c->lc_name = name;
                 c->lc_units = units;
         }
+
+        lprocfs_stats_unlock(stats);
 }
 EXPORT_SYMBOL(lprocfs_counter_init);
 
@@ -583,50 +1211,52 @@ do {                                                                       \
         lprocfs_counter_init(stats, coffset, 0, #op, "reqs");              \
 } while (0)
 
-int lprocfs_alloc_obd_stats(struct obd_device *obd, unsigned num_private_stats)
+void lprocfs_init_ops_stats(int num_private_stats, struct lprocfs_stats *stats)
 {
-        struct lprocfs_stats *stats;
-        unsigned int num_stats;
-        int rc, i;
-
-        LASSERT(obd->obd_stats == NULL);
-        LASSERT(obd->obd_proc_entry != NULL);
-        LASSERT(obd->obd_cntr_base == 0);
-
-        num_stats = 1 + OBD_COUNTER_OFFSET(notify) +
-                num_private_stats;
-        stats = lprocfs_alloc_stats(num_stats);
-        if (stats == NULL)
-                return -ENOMEM;
-
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, iocontrol);
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, get_info);
-        LPROCFS_OBD_OP_INIT(num_private_stats, stats, set_info);
+        LPROCFS_OBD_OP_INIT(num_private_stats, stats, set_info_async);
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, attach);
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, detach);
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, setup);
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, precleanup);
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, cleanup);
+        LPROCFS_OBD_OP_INIT(num_private_stats, stats, process_config);
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, postrecov);
+        LPROCFS_OBD_OP_INIT(num_private_stats, stats, add_conn);
+        LPROCFS_OBD_OP_INIT(num_private_stats, stats, del_conn);
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, connect);
+        LPROCFS_OBD_OP_INIT(num_private_stats, stats, reconnect);
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, disconnect);
+        LPROCFS_OBD_OP_INIT(num_private_stats, stats, fid_init);
+        LPROCFS_OBD_OP_INIT(num_private_stats, stats, fid_fini);
+        LPROCFS_OBD_OP_INIT(num_private_stats, stats, fid_alloc);
+        LPROCFS_OBD_OP_INIT(num_private_stats, stats, fid_delete);
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, statfs);
+        LPROCFS_OBD_OP_INIT(num_private_stats, stats, statfs_async);
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, packmd);
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, unpackmd);
+        LPROCFS_OBD_OP_INIT(num_private_stats, stats, checkmd);
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, preallocate);
+        LPROCFS_OBD_OP_INIT(num_private_stats, stats, precreate);
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, create);
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, destroy);
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, setattr);
+        LPROCFS_OBD_OP_INIT(num_private_stats, stats, setattr_async);
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, getattr);
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, getattr_async);
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, brw);
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, brw_async);
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, prep_async_page);
+        LPROCFS_OBD_OP_INIT(num_private_stats, stats, reget_short_lock);
+        LPROCFS_OBD_OP_INIT(num_private_stats, stats, release_short_lock);
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, queue_async_io);
-        LPROCFS_OBD_OP_INIT(num_private_stats, stats, set_async_flags);
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, queue_group_io);
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, trigger_group_io);
+        LPROCFS_OBD_OP_INIT(num_private_stats, stats, set_async_flags);
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, teardown_async_page);
+        LPROCFS_OBD_OP_INIT(num_private_stats, stats, merge_lvb);
+        LPROCFS_OBD_OP_INIT(num_private_stats, stats, adjust_kms);
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, punch);
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, sync);
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, migrate);
@@ -639,25 +1269,133 @@ int lprocfs_alloc_obd_stats(struct obd_device *obd, unsigned num_private_stats)
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, change_cbdata);
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, cancel);
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, cancel_unused);
-        LPROCFS_OBD_OP_INIT(num_private_stats, stats, san_preprw);
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, init_export);
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, destroy_export);
-        LPROCFS_OBD_OP_INIT(num_private_stats, stats, llog_init); 
-        LPROCFS_OBD_OP_INIT(num_private_stats, stats, llog_finish); 
-        LPROCFS_OBD_OP_INIT(num_private_stats, stats, llog_connect); 
-        LPROCFS_OBD_OP_INIT(num_private_stats, stats, pin); 
+        LPROCFS_OBD_OP_INIT(num_private_stats, stats, extent_calc);
+        LPROCFS_OBD_OP_INIT(num_private_stats, stats, llog_init);
+        LPROCFS_OBD_OP_INIT(num_private_stats, stats, llog_connect);
+        LPROCFS_OBD_OP_INIT(num_private_stats, stats, llog_finish);
+        LPROCFS_OBD_OP_INIT(num_private_stats, stats, pin);
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, unpin);
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, import_event);
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, notify);
-        
+        LPROCFS_OBD_OP_INIT(num_private_stats, stats, health_check);
+        LPROCFS_OBD_OP_INIT(num_private_stats, stats, get_uuid);
+        LPROCFS_OBD_OP_INIT(num_private_stats, stats, quotacheck);
+        LPROCFS_OBD_OP_INIT(num_private_stats, stats, quotactl);
+        LPROCFS_OBD_OP_INIT(num_private_stats, stats, ping);
+        LPROCFS_OBD_OP_INIT(num_private_stats, stats, register_page_removal_cb);
+        LPROCFS_OBD_OP_INIT(num_private_stats,stats,unregister_page_removal_cb);
+        LPROCFS_OBD_OP_INIT(num_private_stats, stats, register_lock_cancel_cb);
+        LPROCFS_OBD_OP_INIT(num_private_stats, stats,unregister_lock_cancel_cb);
+        LPROCFS_OBD_OP_INIT(num_private_stats, stats, pool_new);
+        LPROCFS_OBD_OP_INIT(num_private_stats, stats, pool_rem);
+        LPROCFS_OBD_OP_INIT(num_private_stats, stats, pool_add);
+        LPROCFS_OBD_OP_INIT(num_private_stats, stats, pool_del);
+}
+
+int lprocfs_alloc_obd_stats(struct obd_device *obd, unsigned num_private_stats)
+{
+        struct lprocfs_stats *stats;
+        unsigned int num_stats;
+        int rc, i;
+
+        LASSERT(obd->obd_stats == NULL);
+        LASSERT(obd->obd_proc_entry != NULL);
+        LASSERT(obd->obd_cntr_base == 0);
+
+        num_stats = ((int)sizeof(*obd->obd_type->typ_dt_ops) / sizeof(void *)) +
+                num_private_stats - 1 /* o_owner */;
+        stats = lprocfs_alloc_stats(num_stats, 0);
+        if (stats == NULL)
+                return -ENOMEM;
+
+        lprocfs_init_ops_stats(num_private_stats, stats);
+
         for (i = num_private_stats; i < num_stats; i++) {
                 /* If this LBUGs, it is likely that an obd
                  * operation was added to struct obd_ops in
-                 * <linux/obd.h>, and that the corresponding line item
+                 * <obd.h>, and that the corresponding line item
                  * LPROCFS_OBD_OP_INIT(.., .., opname)
                  * is missing from the list above. */
+                LASSERTF(stats->ls_percpu[0]->lp_cntr[i].lc_name != NULL,
+                         "Missing obd_stat initializer obd_op "
+                         "operation at offset %d.\n", i - num_private_stats);
+        }
+        rc = lprocfs_register_stats(obd->obd_proc_entry, "stats", stats);
+        if (rc < 0) {
+                lprocfs_free_stats(&stats);
+        } else {
+                obd->obd_stats  = stats;
+                obd->obd_cntr_base = num_private_stats;
+        }
+        return rc;
+}
+
+void lprocfs_free_obd_stats(struct obd_device *obd)
+{
+        if (obd->obd_stats)
+                lprocfs_free_stats(&obd->obd_stats);
+}
+
+#define LPROCFS_MD_OP_INIT(base, stats, op)                             \
+do {                                                                    \
+        unsigned int coffset = base + MD_COUNTER_OFFSET(op);            \
+        LASSERT(coffset < stats->ls_num);                               \
+        lprocfs_counter_init(stats, coffset, 0, #op, "reqs");           \
+} while (0)
+
+int lprocfs_alloc_md_stats(struct obd_device *obd,
+                           unsigned num_private_stats)
+{
+        struct lprocfs_stats *stats;
+        unsigned int num_stats;
+        int rc, i;
+
+        LASSERT(obd->md_stats == NULL);
+        LASSERT(obd->obd_proc_entry != NULL);
+        LASSERT(obd->md_cntr_base == 0);
+
+        num_stats = 1 + MD_COUNTER_OFFSET(revalidate_lock) +
+                    num_private_stats;
+        stats = lprocfs_alloc_stats(num_stats, 0);
+        if (stats == NULL)
+                return -ENOMEM;
+
+        LPROCFS_MD_OP_INIT(num_private_stats, stats, getstatus);
+        LPROCFS_MD_OP_INIT(num_private_stats, stats, change_cbdata);
+        LPROCFS_MD_OP_INIT(num_private_stats, stats, close);
+        LPROCFS_MD_OP_INIT(num_private_stats, stats, create);
+        LPROCFS_MD_OP_INIT(num_private_stats, stats, done_writing);
+        LPROCFS_MD_OP_INIT(num_private_stats, stats, enqueue);
+        LPROCFS_MD_OP_INIT(num_private_stats, stats, getattr);
+        LPROCFS_MD_OP_INIT(num_private_stats, stats, getattr_name);
+        LPROCFS_MD_OP_INIT(num_private_stats, stats, intent_lock);
+        LPROCFS_MD_OP_INIT(num_private_stats, stats, link);
+        LPROCFS_MD_OP_INIT(num_private_stats, stats, rename);
+        LPROCFS_MD_OP_INIT(num_private_stats, stats, is_subdir);
+        LPROCFS_MD_OP_INIT(num_private_stats, stats, setattr);
+        LPROCFS_MD_OP_INIT(num_private_stats, stats, sync);
+        LPROCFS_MD_OP_INIT(num_private_stats, stats, readpage);
+        LPROCFS_MD_OP_INIT(num_private_stats, stats, unlink);
+        LPROCFS_MD_OP_INIT(num_private_stats, stats, setxattr);
+        LPROCFS_MD_OP_INIT(num_private_stats, stats, getxattr);
+        LPROCFS_MD_OP_INIT(num_private_stats, stats, init_ea_size);
+        LPROCFS_MD_OP_INIT(num_private_stats, stats, get_lustre_md);
+        LPROCFS_MD_OP_INIT(num_private_stats, stats, free_lustre_md);
+        LPROCFS_MD_OP_INIT(num_private_stats, stats, set_open_replay_data);
+        LPROCFS_MD_OP_INIT(num_private_stats, stats, clear_open_replay_data);
+        LPROCFS_MD_OP_INIT(num_private_stats, stats, set_lock_data);
+        LPROCFS_MD_OP_INIT(num_private_stats, stats, lock_match);
+        LPROCFS_MD_OP_INIT(num_private_stats, stats, cancel_unused);
+        LPROCFS_MD_OP_INIT(num_private_stats, stats, renew_capa);
+        LPROCFS_MD_OP_INIT(num_private_stats, stats, get_remote_perm);
+        LPROCFS_MD_OP_INIT(num_private_stats, stats, intent_getattr_async);
+        LPROCFS_MD_OP_INIT(num_private_stats, stats, revalidate_lock);
+
+        for (i = num_private_stats; i < num_stats; i++) {
                 if (stats->ls_percpu[0]->lp_cntr[i].lc_name == NULL) {
-                        CERROR("Missing obd_stat initializer obd_op "
+                        CERROR("Missing md_stat initializer md_op "
                                "operation at offset %d. Aborting.\n",
                                i - num_private_stats);
                         LBUG();
@@ -665,28 +1403,368 @@ int lprocfs_alloc_obd_stats(struct obd_device *obd, unsigned num_private_stats)
         }
         rc = lprocfs_register_stats(obd->obd_proc_entry, "stats", stats);
         if (rc < 0) {
-                lprocfs_free_stats(stats);
+                lprocfs_free_stats(&stats);
         } else {
-                obd->obd_stats  = stats;
-                obd->obd_cntr_base = num_private_stats;
+                obd->md_stats  = stats;
+                obd->md_cntr_base = num_private_stats;
         }
         return rc;
 }
 
-void lprocfs_free_obd_stats(struct obd_device *obd)
+void lprocfs_free_md_stats(struct obd_device *obd)
 {
-        struct lprocfs_stats *stats = obd->obd_stats;
+        struct lprocfs_stats *stats = obd->md_stats;
 
         if (stats != NULL) {
-                obd->obd_stats = NULL;
-                lprocfs_free_stats(stats);
+                obd->md_stats = NULL;
+                lprocfs_free_stats(&stats);
+        }
+}
+
+void lprocfs_init_ldlm_stats(struct lprocfs_stats *ldlm_stats)
+{
+        lprocfs_counter_init(ldlm_stats,
+                             LDLM_ENQUEUE - LDLM_FIRST_OPC,
+                             0, "ldlm_enqueue", "reqs");
+        lprocfs_counter_init(ldlm_stats,
+                             LDLM_CONVERT - LDLM_FIRST_OPC,
+                             0, "ldlm_convert", "reqs");
+        lprocfs_counter_init(ldlm_stats,
+                             LDLM_CANCEL - LDLM_FIRST_OPC,
+                             0, "ldlm_cancel", "reqs");
+        lprocfs_counter_init(ldlm_stats,
+                             LDLM_BL_CALLBACK - LDLM_FIRST_OPC,
+                             0, "ldlm_bl_callback", "reqs");
+        lprocfs_counter_init(ldlm_stats,
+                             LDLM_CP_CALLBACK - LDLM_FIRST_OPC,
+                             0, "ldlm_cp_callback", "reqs");
+        lprocfs_counter_init(ldlm_stats,
+                             LDLM_GL_CALLBACK - LDLM_FIRST_OPC,
+                             0, "ldlm_gl_callback", "reqs");
+}
+
+int lprocfs_exp_rd_nid(char *page, char **start, off_t off, int count,
+                         int *eof,  void *data)
+{
+        struct obd_export *exp = (struct obd_export*)data;
+        LASSERT(exp != NULL);
+        *eof = 1;
+        return snprintf(page, count, "%s\n", obd_export_nid2str(exp));
+}
+
+struct exp_uuid_cb_data {
+        char                   *page;
+        int                     count;
+        int                    *eof;
+        int                    *len;
+};
+
+static void
+lprocfs_exp_rd_cb_data_init(struct exp_uuid_cb_data *cb_data, char *page,
+                            int count, int *eof, int *len)
+{
+        cb_data->page = page;
+        cb_data->count = count;
+        cb_data->eof = eof;
+        cb_data->len = len;
+}
+
+void lprocfs_exp_print_uuid(void *obj, void *cb_data)
+{
+        struct obd_export *exp = (struct obd_export *)obj;
+        struct exp_uuid_cb_data *data = (struct exp_uuid_cb_data *)cb_data;
+
+        if (exp->exp_nid_stats)
+                *data->len += snprintf((data->page + *data->len),
+                                       data->count, "%s\n",
+                                       obd_uuid2str(&exp->exp_client_uuid));
+}
+
+int lprocfs_exp_rd_uuid(char *page, char **start, off_t off, int count,
+                        int *eof,  void *data)
+{
+        struct nid_stat *stats = (struct nid_stat *)data;
+        struct exp_uuid_cb_data cb_data;
+        struct obd_device *obd = stats->nid_obd;
+        int len = 0;
+
+        *eof = 1;
+        page[0] = '\0';
+        lprocfs_exp_rd_cb_data_init(&cb_data, page, count, eof, &len);
+        lustre_hash_for_each_key(obd->obd_nid_hash, &stats->nid,
+                                 lprocfs_exp_print_uuid, &cb_data);
+        return (*cb_data.len);
+}
+
+void lprocfs_exp_print_hash(void *obj, void *cb_data)
+{
+        struct exp_uuid_cb_data *data = cb_data;
+        struct obd_export       *exp = obj;
+        lustre_hash_t           *lh;
+
+        lh = exp->exp_lock_hash;
+        if (lh) {
+                if (!*data->len)
+                        *data->len += lustre_hash_debug_header(data->page,
+                                                               data->count);
+
+                *data->len += lustre_hash_debug_str(lh, data->page + *data->len,
+                                                    data->count);
+        }
+}
+
+int lprocfs_exp_rd_hash(char *page, char **start, off_t off, int count,
+                        int *eof,  void *data)
+{
+        struct nid_stat *stats = (struct nid_stat *)data;
+        struct exp_uuid_cb_data cb_data;
+        struct obd_device *obd = stats->nid_obd;
+        int len = 0;
+
+        *eof = 1;
+        page[0] = '\0';
+        lprocfs_exp_rd_cb_data_init(&cb_data, page, count, eof, &len);
+
+        lustre_hash_for_each_key(obd->obd_nid_hash, &stats->nid,
+                                 lprocfs_exp_print_hash, &cb_data);
+        return (*cb_data.len);
+}
+
+int lprocfs_nid_stats_clear_read(char *page, char **start, off_t off,
+                                        int count, int *eof,  void *data)
+{
+        *eof = 1;
+        return snprintf(page, count, "%s\n",
+                        "Write into this file to clear all nid stats and "
+                        "stale nid entries");
+}
+EXPORT_SYMBOL(lprocfs_nid_stats_clear_read);
+
+void lprocfs_nid_stats_clear_write_cb(void *obj, void *data)
+{
+        struct nid_stat *stat = obj;
+        int i;
+        ENTRY;
+        /* object has only hash + iterate_all references.
+         * add/delete blocked by hash bucket lock */
+        CDEBUG(D_INFO,"refcnt %d\n", stat->nid_exp_ref_count);
+        if (stat->nid_exp_ref_count == 2) {
+                hlist_del_init(&stat->nid_hash);
+                stat->nid_exp_ref_count--;
+                spin_lock(&stat->nid_obd->obd_nid_lock);
+                list_move(&stat->nid_list, data);
+                spin_unlock(&stat->nid_obd->obd_nid_lock);
+                EXIT;
+                return;
         }
+        /* we has reference to object - only clear data*/
+        if (stat->nid_stats)
+                lprocfs_clear_stats(stat->nid_stats);
+
+        if (stat->nid_brw_stats) {
+                for (i = 0; i < BRW_LAST; i++)
+                        lprocfs_oh_clear(&stat->nid_brw_stats->hist[i]);
+        }
+        EXIT;
+        return;
+}
+
+int lprocfs_nid_stats_clear_write(struct file *file, const char *buffer,
+                                         unsigned long count, void *data)
+{
+        struct obd_device *obd = (struct obd_device *)data;
+        struct nid_stat *client_stat;
+        CFS_LIST_HEAD(free_list);
+
+        lustre_hash_for_each(obd->obd_nid_stats_hash,
+                             lprocfs_nid_stats_clear_write_cb, &free_list);
+
+        while (!list_empty(&free_list)) {
+                client_stat = list_entry(free_list.next, struct nid_stat, nid_list);
+                list_del_init(&client_stat->nid_list);
+                lprocfs_free_client_stats(client_stat);
+        }
+
+        return count;
+}
+EXPORT_SYMBOL(lprocfs_nid_stats_clear_write);
+
+int lprocfs_exp_setup(struct obd_export *exp, lnet_nid_t *nid, int *newnid)
+{
+        struct nid_stat *new_stat, *old_stat;
+        struct nid_stat_uuid *new_ns_uuid;
+        struct obd_device *obd = NULL;
+        cfs_proc_dir_entry_t *entry;
+        int rc = 0;
+        ENTRY;
+
+        *newnid = 0;
+
+        if (!exp || !exp->exp_obd || !exp->exp_obd->obd_proc_exports_entry ||
+            !exp->exp_obd->obd_nid_stats_hash)
+                RETURN(-EINVAL);
+
+        /* not test against zero because eric say:
+         * You may only test nid against another nid, or LNET_NID_ANY.
+         * Anything else is nonsense.*/
+        if (!nid || *nid == LNET_NID_ANY)
+                RETURN(0);
+
+        obd = exp->exp_obd;
+
+        CDEBUG(D_CONFIG, "using hash %p\n", obd->obd_nid_stats_hash);
+
+        OBD_ALLOC_PTR(new_stat);
+        if (new_stat == NULL)
+                RETURN(-ENOMEM);
+
+        OBD_ALLOC_PTR(new_ns_uuid);
+        if (new_ns_uuid == NULL) {
+                OBD_FREE_PTR(new_stat);
+                RETURN(-ENOMEM);
+        }
+        CFS_INIT_LIST_HEAD(&new_ns_uuid->ns_uuid_list);
+        strncpy(new_ns_uuid->ns_uuid.uuid, exp->exp_client_uuid.uuid,
+                sizeof(struct obd_uuid));
+
+        CFS_INIT_LIST_HEAD(&new_stat->nid_uuid_list);
+        new_stat->nid               = *nid;
+        new_stat->nid_obd           = exp->exp_obd;
+        new_stat->nid_exp_ref_count = 1; /* live in hash after destroy export */
+
+       /* protect competitive add to list, not need locking on destroy */
+        spin_lock(&obd->obd_nid_lock);
+        list_add(&new_stat->nid_list, &obd->obd_nid_stats);
+        spin_unlock(&obd->obd_nid_lock);
+
+        old_stat = lustre_hash_findadd_unique(obd->obd_nid_stats_hash,
+                                              nid, &new_stat->nid_hash);
+        CDEBUG(D_INFO, "Found stats %p for nid %s - ref %d\n",
+               old_stat, libcfs_nid2str(*nid), new_stat->nid_exp_ref_count);
+
+        /* Return -EALREADY here so that we know that the /proc
+         * entry already has been created */
+        if (old_stat != new_stat) {
+                struct nid_stat_uuid *tmp_uuid;
+                int found = 0;
+
+                exp->exp_nid_stats = old_stat;
+                /* We need to decrement the refcount if the uuid was
+                 * already in our list */
+                spin_lock(&obd->obd_nid_lock);
+                list_for_each_entry(tmp_uuid, &old_stat->nid_uuid_list,
+                                    ns_uuid_list) {
+                        if (tmp_uuid && obd_uuid_equals(&tmp_uuid->ns_uuid,
+                                                        &exp->exp_client_uuid)){
+                                found = 1;
+                                --old_stat->nid_exp_ref_count;
+                                break;
+                        }
+                }
+
+                if (!found)
+                        list_add(&new_ns_uuid->ns_uuid_list,
+                                 &old_stat->nid_uuid_list);
+                else
+                        OBD_FREE_PTR(new_ns_uuid);
+
+                spin_unlock(&obd->obd_nid_lock);
+
+                GOTO(destroy_new, rc = -EALREADY);
+        }
+        /* not found - create */
+        new_stat->nid_proc = lprocfs_register(libcfs_nid2str(*nid),
+                                              obd->obd_proc_exports_entry,
+                                              NULL, NULL);
+        if (new_stat->nid_proc == NULL) {
+                CERROR("Error making export directory for nid %s\n",
+                       libcfs_nid2str(*nid));
+                GOTO(destroy_new_ns, rc = -ENOMEM);
+        }
+
+        /* Add in uuid to our nid_stats list */
+        spin_lock(&obd->obd_nid_lock);
+        list_add(&new_ns_uuid->ns_uuid_list, &new_stat->nid_uuid_list);
+        spin_unlock(&obd->obd_nid_lock);
+
+        entry = lprocfs_add_simple(new_stat->nid_proc, "uuid",
+                                   lprocfs_exp_rd_uuid, NULL, new_stat, NULL);
+        if (IS_ERR(entry)) {
+                CWARN("Error adding the NID stats file\n");
+                rc = PTR_ERR(entry);
+                GOTO(destroy_new_ns, rc);
+        }
+
+        entry = lprocfs_add_simple(new_stat->nid_proc, "hash",
+                                   lprocfs_exp_rd_hash, NULL, new_stat, NULL);
+        if (IS_ERR(entry)) {
+                CWARN("Error adding the hash file\n");
+                lprocfs_remove(&new_stat->nid_proc);
+                rc = PTR_ERR(entry);
+                GOTO(destroy_new_ns, rc);
+        }
+
+        exp->exp_nid_stats = new_stat;
+        *newnid = 1;
+        RETURN(rc);
+
+destroy_new_ns:
+        lustre_hash_del(obd->obd_nid_stats_hash, nid, &new_stat->nid_hash);
+        OBD_FREE_PTR(new_ns_uuid);
+
+destroy_new:
+        spin_lock(&obd->obd_nid_lock);
+        list_del(&new_stat->nid_list);
+        spin_unlock(&obd->obd_nid_lock);
+        OBD_FREE_PTR(new_stat);
+        RETURN(rc);
+}
+
+int lprocfs_exp_cleanup(struct obd_export *exp)
+{
+        struct nid_stat *stat = exp->exp_nid_stats;
+        struct nid_stat_uuid *cursor, *tmp;
+        int found = 0;
+
+        if(!stat || !exp->exp_obd)
+                RETURN(0);
+
+        spin_lock(&exp->exp_obd->obd_nid_lock);
+        list_for_each_entry_safe(cursor, tmp,
+                                 &stat->nid_uuid_list,
+                                 ns_uuid_list) {
+                if (cursor && obd_uuid_equals(&cursor->ns_uuid,
+                                              &exp->exp_client_uuid)) {
+                        found = 1;
+                        list_del(&cursor->ns_uuid_list);
+                        OBD_FREE_PTR(cursor);
+                        break;
+                }
+        }
+        spin_unlock(&exp->exp_obd->obd_nid_lock);
+        if (!found)
+                CERROR("obd_export's client uuid %s are not found in its "
+                       "nid_stats list\n", exp->exp_client_uuid.uuid);
+
+        stat->nid_exp_ref_count--;
+        CDEBUG(D_INFO, "Put stat %p - %d\n", stat, stat->nid_exp_ref_count);
+
+        exp->exp_nid_stats = NULL;
+        lprocfs_free_md_stats(exp->exp_obd);
+
+        return 0;
 }
 
 int lprocfs_write_helper(const char *buffer, unsigned long count,
                          int *val)
 {
-        char kernbuf[20], *end;
+        return lprocfs_write_frac_helper(buffer, count, val, 1);
+}
+
+int lprocfs_write_frac_helper(const char *buffer, unsigned long count,
+                              int *val, int mult)
+{
+        char kernbuf[20], *end, *pbuf;
 
         if (count > (sizeof(kernbuf) - 1))
                 return -EINVAL;
@@ -695,41 +1773,161 @@ int lprocfs_write_helper(const char *buffer, unsigned long count,
                 return -EFAULT;
 
         kernbuf[count] = '\0';
+        pbuf = kernbuf;
+        if (*pbuf == '-') {
+                mult = -mult;
+                pbuf++;
+        }
 
-        *val = simple_strtol(kernbuf, &end, 0);
-        if (kernbuf == end)
+        *val = (int)simple_strtoul(pbuf, &end, 10) * mult;
+        if (pbuf == end)
                 return -EINVAL;
 
+        if (end != NULL && *end == '.') {
+                int temp_val, pow = 1;
+                int i;
+
+                pbuf = end + 1;
+                if (strlen(pbuf) > 5)
+                        pbuf[5] = '\0'; /*only allow 5bits fractional*/
+
+                temp_val = (int)simple_strtoul(pbuf, &end, 10) * mult;
+
+                if (pbuf < end) {
+                        for (i = 0; i < (end - pbuf); i++)
+                                pow *= 10;
+
+                        *val += temp_val / pow;
+                }
+        }
         return 0;
 }
 
-int lprocfs_write_u64_helper(const char *buffer, unsigned long count,
-                             __u64 *val)
+int lprocfs_read_frac_helper(char *buffer, unsigned long count, long val, int mult)
 {
-        char kernbuf[22], *end;
+        long decimal_val, frac_val;
+        int prtn;
 
-        if (count > (sizeof(kernbuf) - 1))
+        if (count < 10)
+                return -EINVAL;
+
+        decimal_val = val / mult;
+        prtn = snprintf(buffer, count, "%ld", decimal_val);
+        frac_val = val % mult;
+
+        if (prtn < (count - 4) && frac_val > 0) {
+                long temp_frac;
+                int i, temp_mult = 1, frac_bits = 0;
+
+                temp_frac = frac_val * 10;
+                buffer[prtn++] = '.';
+                while (frac_bits < 2 && (temp_frac / mult) < 1 ) { /*only reserved 2bits fraction*/
+                        buffer[prtn++] ='0';
+                        temp_frac *= 10;
+                        frac_bits++;
+                }
+                /*
+                  Need to think these cases :
+                        1. #echo x.00 > /proc/xxx       output result : x
+                        2. #echo x.0x > /proc/xxx       output result : x.0x
+                        3. #echo x.x0 > /proc/xxx       output result : x.x
+                        4. #echo x.xx > /proc/xxx       output result : x.xx
+                        Only reserved 2bits fraction.
+                 */
+                for (i = 0; i < (5 - prtn); i++)
+                        temp_mult *= 10;
+
+                frac_bits = min((int)count - prtn, 3 - frac_bits);
+                prtn += snprintf(buffer + prtn, frac_bits, "%ld", frac_val * temp_mult / mult);
+
+                prtn--;
+                while(buffer[prtn] < '1' || buffer[prtn] > '9') {
+                        prtn--;
+                        if (buffer[prtn] == '.') {
+                                prtn--;
+                                break;
+                        }
+                }
+                prtn++;
+        }
+        buffer[prtn++] ='\n';
+        return prtn;
+}
+
+int lprocfs_write_u64_helper(const char *buffer, unsigned long count,__u64 *val)
+{
+        return lprocfs_write_frac_u64_helper(buffer, count, val, 1);
+}
+
+int lprocfs_write_frac_u64_helper(const char *buffer, unsigned long count,
+                              __u64 *val, int mult)
+{
+        char kernbuf[22], *end, *pbuf;
+        __u64 whole, frac = 0, units;
+        unsigned frac_d = 1;
+
+        if (count > (sizeof(kernbuf) - 1) )
                 return -EINVAL;
 
         if (copy_from_user(kernbuf, buffer, count))
                 return -EFAULT;
 
         kernbuf[count] = '\0';
+        pbuf = kernbuf;
+        if (*pbuf == '-') {
+                mult = -mult;
+                pbuf++;
+        }
 
-        *val = simple_strtoull(kernbuf, &end, 0);
-        if (kernbuf == end)
+        whole = simple_strtoull(pbuf, &end, 10);
+        if (pbuf == end)
                 return -EINVAL;
 
+        if (end != NULL && *end == '.') {
+                int i;
+                pbuf = end + 1;
+
+                /* need to limit frac_d to a __u32 */
+                if (strlen(pbuf) > 10)
+                        pbuf[10] = '\0';
+
+                frac = simple_strtoull(pbuf, &end, 10);
+                /* count decimal places */
+                for (i = 0; i < (end - pbuf); i++)
+                        frac_d *= 10;
+        }
+
+        units = 1;
+        switch(*end) {
+        case 'p': case 'P':
+                units <<= 10;
+        case 't': case 'T':
+                units <<= 10;
+        case 'g': case 'G':
+                units <<= 10;
+        case 'm': case 'M':
+                units <<= 10;
+        case 'k': case 'K':
+                units <<= 10;
+        }
+        /* Specified units override the multiplier */
+        if (units)
+                mult = mult < 0 ? -units : units;
+
+        frac *= mult;
+        do_div(frac, frac_d);
+        *val = whole * mult + frac;
         return 0;
 }
 
-int lprocfs_obd_seq_create(struct obd_device *dev, char *name, mode_t mode,
-                           struct file_operations *seq_fops, void *data)
+int lprocfs_seq_create(cfs_proc_dir_entry_t *parent,
+                       char *name, mode_t mode,
+                       struct file_operations *seq_fops, void *data)
 {
         struct proc_dir_entry *entry;
         ENTRY;
 
-        entry = create_proc_entry(name, mode, dev->obd_proc_entry);
+        entry = create_proc_entry(name, mode, parent);
         if (entry == NULL)
                 RETURN(-ENOMEM);
         entry->proc_fops = seq_fops;
@@ -737,18 +1935,26 @@ int lprocfs_obd_seq_create(struct obd_device *dev, char *name, mode_t mode,
 
         RETURN(0);
 }
+EXPORT_SYMBOL(lprocfs_seq_create);
+
+__inline__ int lprocfs_obd_seq_create(struct obd_device *dev, char *name,
+                                      mode_t mode,
+                                      struct file_operations *seq_fops,
+                                      void *data)
+{
+        return (lprocfs_seq_create(dev->obd_proc_entry, name,
+                                   mode, seq_fops, data));
+}
 EXPORT_SYMBOL(lprocfs_obd_seq_create);
 
 void lprocfs_oh_tally(struct obd_histogram *oh, unsigned int value)
 {
-        unsigned long flags;
-
         if (value >= OBD_HIST_MAX)
                 value = OBD_HIST_MAX - 1;
 
-        spin_lock_irqsave(&oh->oh_lock, flags);
+        spin_lock(&oh->oh_lock);
         oh->oh_buckets[value]++;
-        spin_unlock_irqrestore(&oh->oh_lock, flags);
+        spin_unlock(&oh->oh_lock);
 }
 EXPORT_SYMBOL(lprocfs_oh_tally);
 
@@ -776,42 +1982,205 @@ EXPORT_SYMBOL(lprocfs_oh_sum);
 
 void lprocfs_oh_clear(struct obd_histogram *oh)
 {
-        unsigned long flags;
-        spin_lock_irqsave(&oh->oh_lock, flags);
+        spin_lock(&oh->oh_lock);
         memset(oh->oh_buckets, 0, sizeof(oh->oh_buckets));
-        spin_unlock_irqrestore(&oh->oh_lock, flags);
+        spin_unlock(&oh->oh_lock);
 }
 EXPORT_SYMBOL(lprocfs_oh_clear);
 
-#endif /* LPROCFS*/
+int lprocfs_obd_rd_hash(char *page, char **start, off_t off,
+                        int count, int *eof, void *data)
+{
+        struct obd_device *obd = data;
+        int c = 0;
+
+        if (obd == NULL)
+                return 0;
+
+        c += lustre_hash_debug_header(page, count);
+        c += lustre_hash_debug_str(obd->obd_uuid_hash, page + c, count - c);
+        c += lustre_hash_debug_str(obd->obd_nid_hash, page + c, count - c);
+        c += lustre_hash_debug_str(obd->obd_nid_stats_hash, page+c, count-c);
+
+        return c;
+}
+EXPORT_SYMBOL(lprocfs_obd_rd_hash);
+
+int lprocfs_obd_rd_recovery_status(char *page, char **start, off_t off,
+                                   int count, int *eof, void *data)
+{
+        struct obd_device *obd = data;
+        int len = 0, size;
+
+        LASSERT(obd != NULL);
+        LASSERT(count >= 0);
+
+        /* Set start of user data returned to
+           page + off since the user may have
+           requested to read much smaller than
+           what we need to read */
+        *start = page + off;
+
+        /* We know we are allocated a page here.
+           Also we know that this function will
+           not need to write more than a page
+           so we can truncate at CFS_PAGE_SIZE.  */
+        size = min(count + (int)off + 1, (int)CFS_PAGE_SIZE);
+
+        /* Initialize the page */
+        memset(page, 0, size);
+
+        if (lprocfs_obd_snprintf(&page, size, &len, "status: ") <= 0)
+                goto out;
+        if (obd->obd_max_recoverable_clients == 0) {
+                if (lprocfs_obd_snprintf(&page, size, &len, "INACTIVE\n") <= 0)
+                        goto out;
+
+                goto fclose;
+        }
+
+        /* sampled unlocked, but really... */
+        if (obd->obd_recovering == 0) {
+                if (lprocfs_obd_snprintf(&page, size, &len, "COMPLETE\n") <= 0)
+                        goto out;
+                if (lprocfs_obd_snprintf(&page, size, &len,
+                                         "recovery_start: %lu\n",
+                                         obd->obd_recovery_start) <= 0)
+                        goto out;
+                if (lprocfs_obd_snprintf(&page, size, &len,
+                                         "recovery_duration: %lu\n",
+                                         obd->obd_recovery_end -
+                                         obd->obd_recovery_start) <= 0)
+                        goto out;
+                /* Number of clients that have completed recovery */
+                if (lprocfs_obd_snprintf(&page, size, &len,
+                                         "completed_clients: %d/%d\n",
+                                         obd->obd_max_recoverable_clients -
+                                         obd->obd_recoverable_clients,
+                                         obd->obd_max_recoverable_clients) <= 0)
+                        goto out;
+                if (lprocfs_obd_snprintf(&page, size, &len,
+                                         "replayed_requests: %d\n",
+                                         obd->obd_replayed_requests) <= 0)
+                        goto out;
+                if (lprocfs_obd_snprintf(&page, size, &len,
+                                         "last_transno: "LPD64"\n",
+                                         obd->obd_next_recovery_transno - 1)<=0)
+                        goto out;
+                goto fclose;
+        }
+
+        if (lprocfs_obd_snprintf(&page, size, &len, "RECOVERING\n") <= 0)
+                goto out;
+        if (lprocfs_obd_snprintf(&page, size, &len, "recovery_start: %lu\n",
+                                 obd->obd_recovery_start) <= 0)
+                goto out;
+        if (lprocfs_obd_snprintf(&page, size, &len, "time_remaining: %lu\n",
+                           cfs_time_current_sec() >= obd->obd_recovery_end ? 0 :
+                           obd->obd_recovery_end - cfs_time_current_sec()) <= 0)
+                goto out;
+        if (lprocfs_obd_snprintf(&page, size, &len,"connected_clients: %d/%d\n",
+                                 obd->obd_connected_clients,
+                                 obd->obd_max_recoverable_clients) <= 0)
+                goto out;
+        /* Number of clients that have completed recovery */
+        if (lprocfs_obd_snprintf(&page, size, &len,"completed_clients: %d/%d\n",
+                                 obd->obd_max_recoverable_clients -
+                                 obd->obd_recoverable_clients,
+                                 obd->obd_max_recoverable_clients) <= 0)
+                goto out;
+        if (lprocfs_obd_snprintf(&page, size, &len,"replayed_requests: %d/??\n",
+                                 obd->obd_replayed_requests) <= 0)
+                goto out;
+        if (lprocfs_obd_snprintf(&page, size, &len, "queued_requests: %d\n",
+                                 obd->obd_requests_queued_for_recovery) <= 0)
+                goto out;
+
+        if (lprocfs_obd_snprintf(&page, size, &len, "next_transno: "LPD64"\n",
+                                 obd->obd_next_recovery_transno) <= 0)
+                goto out;
+
+fclose:
+        *eof = 1;
+out:
+        return min(count, len - (int)off);
+}
+EXPORT_SYMBOL(lprocfs_obd_rd_recovery_status);
+
+int lprocfs_obd_rd_recovery_maxtime(char *page, char **start, off_t off,
+                                    int count, int *eof, void *data)
+{
+        struct obd_device *obd = (struct obd_device *)data;
+        LASSERT(obd != NULL);
+
+        return snprintf(page, count, "%lu\n",
+                        obd->obd_recovery_max_time);
+}
+EXPORT_SYMBOL(lprocfs_obd_rd_recovery_maxtime);
+
+int lprocfs_obd_wr_recovery_maxtime(struct file *file, const char *buffer,
+                                    unsigned long count, void *data)
+{
+        struct obd_device *obd = (struct obd_device *)data;
+        int val, rc;
+        LASSERT(obd != NULL);
+
+        rc = lprocfs_write_helper(buffer, count, &val);
+        if (rc)
+                return rc;
+
+        obd->obd_recovery_max_time = val;
+        return count;
+}
+EXPORT_SYMBOL(lprocfs_obd_wr_recovery_maxtime);
 
 EXPORT_SYMBOL(lprocfs_register);
 EXPORT_SYMBOL(lprocfs_srch);
 EXPORT_SYMBOL(lprocfs_remove);
+EXPORT_SYMBOL(lprocfs_remove_proc_entry);
 EXPORT_SYMBOL(lprocfs_add_vars);
-EXPORT_SYMBOL(lprocfs_obd_attach);
-EXPORT_SYMBOL(lprocfs_obd_detach);
+EXPORT_SYMBOL(lprocfs_obd_setup);
+EXPORT_SYMBOL(lprocfs_obd_cleanup);
+EXPORT_SYMBOL(lprocfs_add_simple);
+EXPORT_SYMBOL(lprocfs_add_symlink);
+EXPORT_SYMBOL(lprocfs_free_per_client_stats);
 EXPORT_SYMBOL(lprocfs_alloc_stats);
 EXPORT_SYMBOL(lprocfs_free_stats);
+EXPORT_SYMBOL(lprocfs_clear_stats);
 EXPORT_SYMBOL(lprocfs_register_stats);
+EXPORT_SYMBOL(lprocfs_init_ops_stats);
+EXPORT_SYMBOL(lprocfs_init_ldlm_stats);
 EXPORT_SYMBOL(lprocfs_alloc_obd_stats);
+EXPORT_SYMBOL(lprocfs_alloc_md_stats);
 EXPORT_SYMBOL(lprocfs_free_obd_stats);
+EXPORT_SYMBOL(lprocfs_exp_setup);
+EXPORT_SYMBOL(lprocfs_exp_cleanup);
 
 EXPORT_SYMBOL(lprocfs_rd_u64);
+EXPORT_SYMBOL(lprocfs_rd_atomic);
+EXPORT_SYMBOL(lprocfs_wr_atomic);
+EXPORT_SYMBOL(lprocfs_rd_uint);
+EXPORT_SYMBOL(lprocfs_wr_uint);
 EXPORT_SYMBOL(lprocfs_rd_uuid);
 EXPORT_SYMBOL(lprocfs_rd_name);
 EXPORT_SYMBOL(lprocfs_rd_fstype);
 EXPORT_SYMBOL(lprocfs_rd_server_uuid);
 EXPORT_SYMBOL(lprocfs_rd_conn_uuid);
+EXPORT_SYMBOL(lprocfs_rd_num_exports);
 EXPORT_SYMBOL(lprocfs_rd_numrefs);
-
+EXPORT_SYMBOL(lprocfs_at_hist_helper);
+EXPORT_SYMBOL(lprocfs_rd_import);
+EXPORT_SYMBOL(lprocfs_rd_timeouts);
 EXPORT_SYMBOL(lprocfs_rd_blksize);
 EXPORT_SYMBOL(lprocfs_rd_kbytestotal);
 EXPORT_SYMBOL(lprocfs_rd_kbytesfree);
 EXPORT_SYMBOL(lprocfs_rd_kbytesavail);
 EXPORT_SYMBOL(lprocfs_rd_filestotal);
 EXPORT_SYMBOL(lprocfs_rd_filesfree);
-EXPORT_SYMBOL(lprocfs_rd_filegroups);
 
 EXPORT_SYMBOL(lprocfs_write_helper);
+EXPORT_SYMBOL(lprocfs_write_frac_helper);
+EXPORT_SYMBOL(lprocfs_read_frac_helper);
 EXPORT_SYMBOL(lprocfs_write_u64_helper);
+EXPORT_SYMBOL(lprocfs_write_frac_u64_helper);
+#endif /* LPROCFS*/