Whamcloud - gitweb
LU-3963 Revert bitops changes
[fs/lustre-release.git] / lustre / obdclass / lprocfs_status.c
index 1579559..9956ada 100644 (file)
@@ -41,7 +41,7 @@
 #define DEBUG_SUBSYSTEM S_CLASS
 
 #ifndef __KERNEL__
-# include <liblustre.h>
+#include <liblustre.h>
 #endif
 
 #include <obd_class.h>
@@ -56,24 +56,23 @@ CFS_MODULE_PARM(lprocfs_no_percpu_stats, "i", int, 0644,
 
 #define MAX_STRING_SIZE 128
 
-/* for bug 10866, global variable */
-DECLARE_RWSEM(_lprocfs_lock);
-EXPORT_SYMBOL(_lprocfs_lock);
-
 int lprocfs_single_release(struct inode *inode, struct file *file)
 {
-        LPROCFS_EXIT();
         return single_release(inode, file);
 }
 EXPORT_SYMBOL(lprocfs_single_release);
 
 int lprocfs_seq_release(struct inode *inode, struct file *file)
 {
-        LPROCFS_EXIT();
         return seq_release(inode, file);
 }
 EXPORT_SYMBOL(lprocfs_seq_release);
 
+#ifndef HAVE_ONLY_PROCFS_SEQ
+/* for b=10866, global variable */
+DECLARE_RWSEM(_lprocfs_lock);
+EXPORT_SYMBOL(_lprocfs_lock);
+
 static struct proc_dir_entry *__lprocfs_srch(struct proc_dir_entry *head,
                                              const char *name)
 {
@@ -111,6 +110,7 @@ EXPORT_SYMBOL(lprocfs_srch);
    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. */
+#ifdef HAVE_SERVER_SUPPORT
 static int lprocfs_obd_snprintf(char **page, int end, int *len,
                                 const char *format, ...)
 {
@@ -127,11 +127,15 @@ static int lprocfs_obd_snprintf(char **page, int end, int *len,
         *page += n; *len += n;
         return n;
 }
+#endif /* HAVE_SERVER_SUPPORT */
+#endif /* HAVE_ONLY_PROCFS_SEQ */
 
 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,
+#ifndef HAVE_ONLY_PROCFS_SEQ
+                                        read_proc_t *read_proc,
+                                        write_proc_t *write_proc,
+#endif
                                          void *data,
                                          struct file_operations *fops)
 {
@@ -140,25 +144,40 @@ cfs_proc_dir_entry_t *lprocfs_add_simple(struct proc_dir_entry *root,
 
         if (root == NULL || name == NULL)
                 return ERR_PTR(-EINVAL);
-        if (read_proc)
-                mode = 0444;
-        if (write_proc)
-                mode |= 0200;
-        if (fops)
-                mode = 0644;
-        LPROCFS_WRITE_ENTRY();
-        proc = create_proc_entry(name, mode, root);
-        if (!proc) {
-                CERROR("LprocFS: No memory to create /proc entry %s", name);
-                LPROCFS_WRITE_EXIT();
-                return ERR_PTR(-ENOMEM);
-        }
-        proc->read_proc = read_proc;
-        proc->write_proc = write_proc;
-        proc->data = data;
-        if (fops)
-                proc->proc_fops = fops;
-        LPROCFS_WRITE_EXIT();
+
+       if (!fops) {
+#ifndef HAVE_ONLY_PROCFS_SEQ
+               if (read_proc)
+                       mode = 0444;
+               if (write_proc)
+                       mode |= 0200;
+
+               LPROCFS_WRITE_ENTRY();
+               proc = create_proc_entry(name, mode, root);
+               if (!proc) {
+                       CERROR("LprocFS: No memory to create /proc entry %s", name);
+                       LPROCFS_WRITE_EXIT();
+                       return ERR_PTR(-ENOMEM);
+               }
+               proc->read_proc = read_proc;
+               proc->write_proc = write_proc;
+               proc->data = data;
+               LPROCFS_WRITE_EXIT();
+#else
+               return ERR_PTR(-EINVAL);
+#endif
+       } else {
+               if (fops->read)
+                       mode = 0444;
+               if (fops->write)
+                       mode |= 0200;
+               proc = proc_create_data(name, mode, root, fops, data);
+               if (!proc) {
+                       CERROR("LprocFS: No memory to create /proc entry %s",
+                              name);
+                       return ERR_PTR(-ENOMEM);
+               }
+       }
         return proc;
 }
 EXPORT_SYMBOL(lprocfs_add_simple);
@@ -191,6 +210,7 @@ struct proc_dir_entry *lprocfs_add_symlink(const char *name,
 }
 EXPORT_SYMBOL(lprocfs_add_symlink);
 
+#ifndef HAVE_ONLY_PROCFS_SEQ
 static ssize_t lprocfs_fops_read(struct file *f, char __user *buf,
                                  size_t size, loff_t *ppos)
 {
@@ -205,7 +225,7 @@ static ssize_t lprocfs_fops_read(struct file *f, char __user *buf,
         if (page == NULL)
                 return -ENOMEM;
 
-        if (LPROCFS_ENTRY_AND_CHECK(dp)) {
+       if (LPROCFS_ENTRY_CHECK(dp)) {
                 rc = -ENOENT;
                 goto out;
         }
@@ -214,7 +234,6 @@ static ssize_t lprocfs_fops_read(struct file *f, char __user *buf,
         if (dp->read_proc)
                rc = dp->read_proc(page, &start, *ppos, PAGE_CACHE_SIZE,
                                    &eof, dp->data);
-        LPROCFS_EXIT();
         if (rc <= 0)
                 goto out;
 
@@ -250,11 +269,10 @@ static ssize_t lprocfs_fops_write(struct file *f, const char __user *buf,
         struct proc_dir_entry *dp = PDE(f->f_dentry->d_inode);
         int rc = -EIO;
 
-        if (LPROCFS_ENTRY_AND_CHECK(dp))
+       if (LPROCFS_ENTRY_CHECK(dp))
                 return -ENOENT;
         if (dp->write_proc)
                 rc = dp->write_proc(f, buf, size, dp->data);
-        LPROCFS_EXIT();
         return rc;
 }
 
@@ -263,28 +281,112 @@ static struct file_operations lprocfs_generic_fops = {
         .read = lprocfs_fops_read,
         .write = lprocfs_fops_write,
 };
+#else
+static struct file_operations lprocfs_generic_fops = { };
+#endif
 
+#ifdef HAVE_SERVER_SUPPORT
 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;
-
-        cfs_atomic_inc(&obd->obd_evict_inprogress);
+       struct obd_device *obd = PDE_DATA(f->f_dentry->d_inode);
 
-        return 0;
+       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;
+       struct obd_device *obd = PDE_DATA(f->f_dentry->d_inode);
 
-        cfs_atomic_dec(&obd->obd_evict_inprogress);
-        cfs_waitq_signal(&obd->obd_evict_inprogress_waitq);
+       atomic_dec(&obd->obd_evict_inprogress);
+       wake_up(&obd->obd_evict_inprogress_waitq);
 
-        return 0;
+       return 0;
 }
 
+#define BUFLEN (UUID_MAX + 5)
+
+#ifndef HAVE_ONLY_PROCFS_SEQ
+int lprocfs_wr_evict_client(struct file *file, const char *buffer,
+                           unsigned long count, void *data)
+{
+       struct obd_device *obd = data;
+       char              *kbuf;
+       char              *tmpbuf;
+
+       OBD_ALLOC(kbuf, BUFLEN);
+       if (kbuf == NULL)
+               return -ENOMEM;
+
+       /*
+        * OBD_ALLOC() will zero kbuf, but we only copy BUFLEN - 1
+        * bytes into kbuf, to ensure that the string is NUL-terminated.
+        * UUID_MAX should include a trailing NUL already.
+        */
+       if (copy_from_user(kbuf, buffer,
+                          min_t(unsigned long, BUFLEN - 1, count))) {
+               count = -EFAULT;
+               goto out;
+       }
+       tmpbuf = cfs_firststr(kbuf, min_t(unsigned long, BUFLEN - 1, count));
+       class_incref(obd, __FUNCTION__, current);
+
+       if (strncmp(tmpbuf, "nid:", 4) == 0)
+               obd_export_evict_by_nid(obd, tmpbuf + 4);
+       else if (strncmp(tmpbuf, "uuid:", 5) == 0)
+               obd_export_evict_by_uuid(obd, tmpbuf + 5);
+       else
+               obd_export_evict_by_uuid(obd, tmpbuf);
+
+       class_decref(obd, __FUNCTION__, current);
+out:
+       OBD_FREE(kbuf, BUFLEN);
+       return count;
+}
+EXPORT_SYMBOL(lprocfs_wr_evict_client);
+#endif
+
+ssize_t
+lprocfs_evict_client_seq_write(struct file *file, const char *buffer,
+                              size_t count, loff_t *off)
+{
+       struct obd_device *obd = ((struct seq_file *)file->private_data)->private;
+       char *tmpbuf, *kbuf;
+
+       OBD_ALLOC(kbuf, BUFLEN);
+       if (kbuf == NULL)
+               return -ENOMEM;
+
+       /*
+        * OBD_ALLOC() will zero kbuf, but we only copy BUFLEN - 1
+        * bytes into kbuf, to ensure that the string is NUL-terminated.
+        * UUID_MAX should include a trailing NUL already.
+        */
+       if (copy_from_user(kbuf, buffer,
+                          min_t(unsigned long, BUFLEN - 1, count))) {
+               count = -EFAULT;
+               goto out;
+       }
+       tmpbuf = cfs_firststr(kbuf, min_t(unsigned long, BUFLEN - 1, count));
+       class_incref(obd, __FUNCTION__, current);
+
+       if (strncmp(tmpbuf, "nid:", 4) == 0)
+               obd_export_evict_by_nid(obd, tmpbuf + 4);
+       else if (strncmp(tmpbuf, "uuid:", 5) == 0)
+               obd_export_evict_by_uuid(obd, tmpbuf + 5);
+       else
+               obd_export_evict_by_uuid(obd, tmpbuf);
+
+       class_decref(obd, __FUNCTION__, current);
+
+out:
+       OBD_FREE(kbuf, BUFLEN);
+       return count;
+}
+EXPORT_SYMBOL(lprocfs_evict_client_seq_write);
+
+#undef BUFLEN
+
 struct file_operations lprocfs_evict_client_fops = {
         .owner = THIS_MODULE,
         .read = lprocfs_fops_read,
@@ -293,27 +395,18 @@ struct file_operations lprocfs_evict_client_fops = {
         .release = lprocfs_evict_client_release,
 };
 EXPORT_SYMBOL(lprocfs_evict_client_fops);
+#endif
 
-/**
- * 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)
+#ifndef HAVE_ONLY_PROCFS_SEQ
+static int __lprocfs_add_vars(struct proc_dir_entry *root,
+                             struct lprocfs_vars *list,
+                             void *data)
 {
         int rc = 0;
 
         if (root == NULL || list == NULL)
                 return -EINVAL;
 
-        LPROCFS_WRITE_ENTRY();
         while (list->name != NULL) {
                 struct proc_dir_entry *cur_root, *proc;
                 char *pathcopy, *cur, *next, pathbuf[64];
@@ -378,21 +471,76 @@ int lprocfs_add_vars(struct proc_dir_entry *root, struct lprocfs_vars *list,
                 list++;
         }
 out:
-        LPROCFS_WRITE_EXIT();
         return rc;
 }
+
+int lprocfs_add_vars(struct proc_dir_entry *root, struct lprocfs_vars *list,
+                    void *data)
+{
+       int rc = 0;
+
+       LPROCFS_WRITE_ENTRY();
+       rc = __lprocfs_add_vars(root, list, data);
+       LPROCFS_WRITE_EXIT();
+
+       return rc;
+}
 EXPORT_SYMBOL(lprocfs_add_vars);
 
-void lprocfs_remove_nolock(struct proc_dir_entry **rooth)
+#endif
+
+/**
+ * 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_seq_add_vars(struct proc_dir_entry *root, struct lprocfs_seq_vars *list,
+                    void *data)
+{
+       if (root == NULL || list == NULL)
+               return -EINVAL;
+
+       while (list->name != NULL) {
+               struct proc_dir_entry *proc;
+               mode_t mode = 0;
+
+               if (list->proc_mode != 0000) {
+                       mode = list->proc_mode;
+               } else if (list->fops) {
+                       if (list->fops->read)
+                               mode = 0444;
+                       if (list->fops->write)
+                               mode |= 0200;
+               }
+               proc = proc_create_data(list->name, mode, root,
+                                       list->fops ?: &lprocfs_generic_fops,
+                                       list->data ?: data);
+               if (proc == NULL)
+                       return -ENOMEM;
+               list++;
+       }
+       return 0;
+}
+EXPORT_SYMBOL(lprocfs_seq_add_vars);
+
+#ifndef HAVE_ONLY_PROCFS_SEQ
+void lprocfs_remove_nolock(struct proc_dir_entry **proot)
 {
-        struct proc_dir_entry *root = *rooth;
-        struct proc_dir_entry *temp = root;
-        struct proc_dir_entry *rm_entry;
-        struct proc_dir_entry *parent;
+       struct proc_dir_entry *root = *proot;
+       struct proc_dir_entry *temp = root;
+       struct proc_dir_entry *rm_entry;
+       struct proc_dir_entry *parent;
 
-        if (!root)
-                return;
-        *rooth = NULL;
+       *proot = NULL;
+       if (root == NULL || IS_ERR(root))
+               return;
 
         parent = root->parent;
         LASSERT(parent != NULL);
@@ -415,12 +563,18 @@ void lprocfs_remove_nolock(struct proc_dir_entry **rooth)
                         break;
         }
 }
+#endif
 
 void lprocfs_remove(struct proc_dir_entry **rooth)
 {
+#ifndef HAVE_ONLY_PROCFS_SEQ
        LPROCFS_WRITE_ENTRY(); /* search vs remove race */
        lprocfs_remove_nolock(rooth);
        LPROCFS_WRITE_EXIT();
+#else
+       proc_remove(*rooth);
+       *rooth = NULL;
+#endif
 }
 EXPORT_SYMBOL(lprocfs_remove);
 
@@ -431,6 +585,7 @@ void lprocfs_remove_proc_entry(const char *name, struct proc_dir_entry *parent)
 }
 EXPORT_SYMBOL(lprocfs_remove_proc_entry);
 
+#ifndef HAVE_ONLY_PROCFS_SEQ
 void lprocfs_try_remove_proc_entry(const char *name,
                                   struct proc_dir_entry *parent)
 {
@@ -478,38 +633,61 @@ void lprocfs_try_remove_proc_entry(const char *name,
 EXPORT_SYMBOL(lprocfs_try_remove_proc_entry);
 
 struct proc_dir_entry *lprocfs_register(const char *name,
-                                        struct proc_dir_entry *parent,
-                                        struct lprocfs_vars *list, void *data)
+                                       struct proc_dir_entry *parent,
+                                       struct lprocfs_vars *list, void *data)
 {
-        struct proc_dir_entry *newchild;
+       struct proc_dir_entry *entry;
+       int rc;
 
-        newchild = lprocfs_srch(parent, name);
-        if (newchild != NULL) {
-                CERROR(" Lproc: Attempting to register %s more than once \n",
-                       name);
-                return ERR_PTR(-EALREADY);
-        }
+       LPROCFS_WRITE_ENTRY();
+       entry = __lprocfs_srch(parent, name);
+       if (entry != NULL) {
+               CERROR("entry '%s' already registered\n", name);
+               GOTO(out, entry = ERR_PTR(-EALREADY));
+       }
 
-        newchild = proc_mkdir(name, parent);
-        if (newchild != NULL && list != NULL) {
-                int rc = lprocfs_add_vars(newchild, list, data);
-                if (rc) {
-                        lprocfs_remove(&newchild);
-                        return ERR_PTR(rc);
-                }
-        }
-        return newchild;
+       entry = proc_mkdir(name, parent);
+       if (entry == NULL)
+               GOTO(out, entry = ERR_PTR(-ENOMEM));
+
+       if (list != NULL) {
+               rc = __lprocfs_add_vars(entry, list, data);
+               if (rc != 0) {
+                       lprocfs_remove_nolock(&entry);
+                       GOTO(out, entry = ERR_PTR(rc));
+               }
+       }
+out:
+       LPROCFS_WRITE_EXIT();
+       return entry;
 }
 EXPORT_SYMBOL(lprocfs_register);
+#endif
+
+struct proc_dir_entry *
+lprocfs_seq_register(const char *name, struct proc_dir_entry *parent,
+                    struct lprocfs_seq_vars *list, void *data)
+{
+       struct proc_dir_entry *newchild;
+
+       newchild = proc_mkdir(name, parent);
+       if (newchild != NULL && list != NULL) {
+               int rc = lprocfs_seq_add_vars(newchild, list, data);
+               if (rc) {
+                       lprocfs_remove(&newchild);
+                       return ERR_PTR(rc);
+               }
+       }
+       return newchild;
+}
+EXPORT_SYMBOL(lprocfs_seq_register);
 
 /* Generic callbacks */
-int lprocfs_rd_uint(char *page, char **start, off_t off,
-                    int count, int *eof, void *data)
+int lprocfs_uint_seq_show(struct seq_file *m, void *data)
 {
-        unsigned int *temp = data;
-        return snprintf(page, count, "%u\n", *temp);
+       return seq_printf(m, "%u\n", *(unsigned int *)data);
 }
-EXPORT_SYMBOL(lprocfs_rd_uint);
+EXPORT_SYMBOL(lprocfs_uint_seq_show);
 
 int lprocfs_wr_uint(struct file *file, const char *buffer,
                     unsigned long count, void *data)
@@ -531,6 +709,677 @@ int lprocfs_wr_uint(struct file *file, const char *buffer,
 }
 EXPORT_SYMBOL(lprocfs_wr_uint);
 
+ssize_t lprocfs_uint_seq_write(struct file *file, const char *buffer,
+                              size_t count, loff_t *off)
+{
+       int *data = ((struct seq_file *)file->private_data)->private;
+       int val = 0, rc;
+
+       rc = lprocfs_write_helper(buffer, count, &val);
+       if (rc < 0)
+               return rc;
+
+       return lprocfs_wr_uint(file, buffer, count, data);
+}
+EXPORT_SYMBOL(lprocfs_uint_seq_write);
+
+int lprocfs_u64_seq_show(struct seq_file *m, void *data)
+{
+       LASSERT(data != NULL);
+       return seq_printf(m, LPU64"\n", *(__u64 *)data);
+}
+EXPORT_SYMBOL(lprocfs_u64_seq_show);
+
+int lprocfs_atomic_seq_show(struct seq_file *m, void *data)
+{
+       atomic_t *atom = data;
+       LASSERT(atom != NULL);
+       return seq_printf(m, "%d\n", atomic_read(atom));
+}
+EXPORT_SYMBOL(lprocfs_atomic_seq_show);
+
+ssize_t
+lprocfs_atomic_seq_write(struct file *file, const char *buffer,
+                       size_t count, loff_t *off)
+{
+       atomic_t *atm = ((struct seq_file *)file->private_data)->private;
+       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;
+}
+EXPORT_SYMBOL(lprocfs_atomic_seq_write);
+
+int lprocfs_uuid_seq_show(struct seq_file *m, void *data)
+{
+       struct obd_device *obd = data;
+
+       LASSERT(obd != NULL);
+       return seq_printf(m, "%s\n", obd->obd_uuid.uuid);
+}
+EXPORT_SYMBOL(lprocfs_uuid_seq_show);
+
+int lprocfs_name_seq_show(struct seq_file *m, void *data)
+{
+       struct obd_device *dev = data;
+
+       LASSERT(dev != NULL);
+       return seq_printf(m, "%s\n", dev->obd_name);
+}
+EXPORT_SYMBOL(lprocfs_name_seq_show);
+
+int lprocfs_blksize_seq_show(struct seq_file *m, void *data)
+{
+       struct obd_device *obd = data;
+       struct obd_statfs  osfs;
+       int rc = obd_statfs(NULL, obd->obd_self_export, &osfs,
+                           cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
+                           OBD_STATFS_NODELAY);
+       if (!rc)
+               rc = seq_printf(m, "%u\n", osfs.os_bsize);
+       return rc;
+}
+EXPORT_SYMBOL(lprocfs_blksize_seq_show);
+
+int lprocfs_kbytestotal_seq_show(struct seq_file *m, void *data)
+{
+       struct obd_device *obd = data;
+       struct obd_statfs  osfs;
+       int rc = obd_statfs(NULL, obd->obd_self_export, &osfs,
+                           cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
+                           OBD_STATFS_NODELAY);
+       if (!rc) {
+               __u32 blk_size = osfs.os_bsize >> 10;
+               __u64 result = osfs.os_blocks;
+
+               while (blk_size >>= 1)
+                       result <<= 1;
+
+               rc = seq_printf(m, LPU64"\n", result);
+       }
+       return rc;
+}
+EXPORT_SYMBOL(lprocfs_kbytestotal_seq_show);
+
+int lprocfs_kbytesfree_seq_show(struct seq_file *m, void *data)
+{
+       struct obd_device *obd = data;
+       struct obd_statfs  osfs;
+       int rc = obd_statfs(NULL, obd->obd_self_export, &osfs,
+                           cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
+                           OBD_STATFS_NODELAY);
+       if (!rc) {
+               __u32 blk_size = osfs.os_bsize >> 10;
+               __u64 result = osfs.os_bfree;
+
+               while (blk_size >>= 1)
+                       result <<= 1;
+
+               rc = seq_printf(m, LPU64"\n", result);
+       }
+       return rc;
+}
+EXPORT_SYMBOL(lprocfs_kbytesfree_seq_show);
+
+int lprocfs_kbytesavail_seq_show(struct seq_file *m, void *data)
+{
+       struct obd_device *obd = data;
+       struct obd_statfs  osfs;
+       int rc = obd_statfs(NULL, obd->obd_self_export, &osfs,
+                           cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
+                           OBD_STATFS_NODELAY);
+       if (!rc) {
+               __u32 blk_size = osfs.os_bsize >> 10;
+               __u64 result = osfs.os_bavail;
+
+               while (blk_size >>= 1)
+                       result <<= 1;
+
+               rc = seq_printf(m, LPU64"\n", result);
+       }
+       return rc;
+}
+EXPORT_SYMBOL(lprocfs_kbytesavail_seq_show);
+
+int lprocfs_filestotal_seq_show(struct seq_file *m, void *data)
+{
+       struct obd_device *obd = data;
+       struct obd_statfs  osfs;
+       int rc = obd_statfs(NULL, obd->obd_self_export, &osfs,
+                           cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
+                           OBD_STATFS_NODELAY);
+       if (!rc)
+               rc = seq_printf(m, LPU64"\n", osfs.os_files);
+       return rc;
+}
+EXPORT_SYMBOL(lprocfs_filestotal_seq_show);
+
+int lprocfs_filesfree_seq_show(struct seq_file *m, void *data)
+{
+       struct obd_device *obd = data;
+       struct obd_statfs  osfs;
+       int rc = obd_statfs(NULL, obd->obd_self_export, &osfs,
+                           cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
+                           OBD_STATFS_NODELAY);
+       if (!rc)
+               rc = seq_printf(m, LPU64"\n", osfs.os_ffree);
+       return rc;
+}
+EXPORT_SYMBOL(lprocfs_filesfree_seq_show);
+
+int lprocfs_server_uuid_seq_show(struct seq_file *m, void *data)
+{
+       struct obd_device *obd = 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);
+       rc = seq_printf(m, "%s\t%s%s\n", obd2cli_tgt(obd), imp_state_name,
+                       imp->imp_deactive ? "\tDEACTIVATED" : "");
+
+       LPROCFS_CLIMP_EXIT(obd);
+       return rc;
+}
+EXPORT_SYMBOL(lprocfs_server_uuid_seq_show);
+
+int lprocfs_conn_uuid_seq_show(struct seq_file *m, void *data)
+{
+       struct obd_device *obd = data;
+       struct ptlrpc_connection *conn;
+       int rc = 0;
+
+       LASSERT(obd != NULL);
+
+       LPROCFS_CLIMP_CHECK(obd);
+       conn = obd->u.cli.cl_import->imp_connection;
+       if (conn && obd->u.cli.cl_import)
+               rc = seq_printf(m, "%s\n", conn->c_remote_uuid.uuid);
+       else
+               rc = seq_printf(m, "%s\n", "<none>");
+
+       LPROCFS_CLIMP_EXIT(obd);
+       return rc;
+}
+EXPORT_SYMBOL(lprocfs_conn_uuid_seq_show);
+
+/** add up per-cpu counters */
+void lprocfs_stats_collect(struct lprocfs_stats *stats, int idx,
+                          struct lprocfs_counter *cnt)
+{
+       unsigned int                    num_entry;
+       struct lprocfs_counter          *percpu_cntr;
+       int                             i;
+       unsigned long                   flags = 0;
+
+       memset(cnt, 0, sizeof(*cnt));
+
+       if (stats == NULL) {
+               /* set count to 1 to avoid divide-by-zero errs in callers */
+               cnt->lc_count = 1;
+               return;
+       }
+
+       cnt->lc_min = LC_MIN_INIT;
+
+       num_entry = lprocfs_stats_lock(stats, LPROCFS_GET_NUM_CPU, &flags);
+
+       for (i = 0; i < num_entry; i++) {
+               if (stats->ls_percpu[i] == NULL)
+                       continue;
+               percpu_cntr = lprocfs_stats_counter_get(stats, i, idx);
+
+               cnt->lc_count += percpu_cntr->lc_count;
+               cnt->lc_sum += percpu_cntr->lc_sum;
+               if (percpu_cntr->lc_min < cnt->lc_min)
+                       cnt->lc_min = percpu_cntr->lc_min;
+               if (percpu_cntr->lc_max > cnt->lc_max)
+                       cnt->lc_max = percpu_cntr->lc_max;
+               cnt->lc_sumsquare += percpu_cntr->lc_sumsquare;
+       }
+
+       lprocfs_stats_unlock(stats, LPROCFS_GET_NUM_CPU, &flags);
+}
+EXPORT_SYMBOL(lprocfs_stats_collect);
+
+/**
+ * Append a space separated list of current set flags to str.
+ */
+#define flag2seqstr(flag)                                              \
+       do {                                                            \
+               if (imp->imp_##flag)                                    \
+                       seq_printf(m, "%s" #flag, first ? "" : ", ");   \
+       } while (0)
+static int obd_import_flags2seqstr(struct obd_import *imp, struct seq_file *m)
+{
+       bool first = true;
+
+       if (imp->imp_obd->obd_no_recov) {
+               seq_printf(m, "no_recov");
+               first = false;
+       }
+
+       flag2seqstr(invalid);
+       flag2seqstr(deactive);
+       flag2seqstr(replayable);
+       flag2seqstr(pingable);
+       return 0;
+}
+#undef flags2seqstr
+
+static const char *obd_connect_names[] = {
+       "read_only",
+       "lov_index",
+       "connect_from_mds",
+       "write_grant",
+       "server_lock",
+       "version",
+       "request_portal",
+       "acl",
+       "xattr",
+       "create_on_write",
+       "truncate_lock",
+       "initial_transno",
+       "inode_bit_locks",
+       "join_file(obsolete)",
+       "getattr_by_fid",
+       "no_oh_for_devices",
+       "remote_client",
+       "remote_client_by_force",
+       "max_byte_per_rpc",
+       "64bit_qdata",
+       "mds_capability",
+       "oss_capability",
+       "early_lock_cancel",
+       "som",
+       "adaptive_timeouts",
+       "lru_resize",
+       "mds_mds_connection",
+       "real_conn",
+       "change_qunit_size",
+       "alt_checksum_algorithm",
+       "fid_is_enabled",
+       "version_recovery",
+       "pools",
+       "grant_shrink",
+       "skip_orphan",
+       "large_ea",
+       "full20",
+       "layout_lock",
+       "64bithash",
+       "object_max_bytes",
+       "imp_recov",
+       "jobstats",
+       "umask",
+       "einprogress",
+       "grant_param",
+       "flock_owner",
+       "lvb_type",
+       "nanoseconds_times",
+       "lightweight_conn",
+       "short_io",
+       "pingless",
+       "flock_deadlock",
+       "disp_stripe",
+       "unknown",
+       NULL
+};
+
+static void obd_connect_seq_flags2str(struct seq_file *m, __u64 flags, char *sep)
+{
+       bool first = true;
+       __u64 mask = 1;
+       int i;
+
+       for (i = 0; obd_connect_names[i] != NULL; i++, mask <<= 1) {
+               if (flags & mask) {
+                       seq_printf(m, "%s%s",
+                                  first ? "" : sep, obd_connect_names[i]);
+                       first = false;
+               }
+       }
+       if (flags & ~(mask - 1))
+               seq_printf(m, "%sunknown flags "LPX64,
+                          first ? "" : sep, flags & ~(mask - 1));
+}
+
+int obd_connect_flags2str(char *page, int count, __u64 flags, char *sep)
+{
+       __u64 mask = 1;
+       int i, ret = 0;
+
+       for (i = 0; obd_connect_names[i] != NULL; i++, mask <<= 1) {
+               if (flags & mask)
+                       ret += snprintf(page + ret, count - ret, "%s%s",
+                                       ret ? sep : "", obd_connect_names[i]);
+       }
+       if (flags & ~(mask - 1))
+               ret += snprintf(page + ret, count - ret,
+                               "%sunknown flags "LPX64,
+                               ret ? sep : "", flags & ~(mask - 1));
+       return ret;
+}
+EXPORT_SYMBOL(obd_connect_flags2str);
+
+static void obd_connect_data_seqprint(struct seq_file *m,
+                                     struct obd_connect_data *ocd)
+{
+       int flags;
+
+       LASSERT(ocd != NULL);
+       flags = ocd->ocd_connect_flags;
+
+       seq_printf(m, "    connect_data:\n"
+                     "       flags: "LPX64"\n"
+                     "       instance: %u\n",
+                     ocd->ocd_connect_flags,
+                     ocd->ocd_instance);
+       if (flags & OBD_CONNECT_VERSION)
+               seq_printf(m, "       target_version: %u.%u.%u.%u\n",
+                             OBD_OCD_VERSION_MAJOR(ocd->ocd_version),
+                             OBD_OCD_VERSION_MINOR(ocd->ocd_version),
+                             OBD_OCD_VERSION_PATCH(ocd->ocd_version),
+                             OBD_OCD_VERSION_FIX(ocd->ocd_version));
+       if (flags & OBD_CONNECT_MDS)
+               seq_printf(m, "       mdt_index: %d\n", ocd->ocd_group);
+       if (flags & OBD_CONNECT_GRANT)
+               seq_printf(m, "       initial_grant: %d\n", ocd->ocd_grant);
+       if (flags & OBD_CONNECT_INDEX)
+               seq_printf(m, "       target_index: %u\n", ocd->ocd_index);
+       if (flags & OBD_CONNECT_BRW_SIZE)
+               seq_printf(m, "       max_brw_size: %d\n", ocd->ocd_brw_size);
+       if (flags & OBD_CONNECT_IBITS)
+               seq_printf(m, "       ibits_known: "LPX64"\n",
+                               ocd->ocd_ibits_known);
+       if (flags & OBD_CONNECT_GRANT_PARAM)
+               seq_printf(m, "       grant_block_size: %d\n"
+                             "       grant_inode_size: %d\n"
+                             "       grant_extent_overhead: %d\n",
+                             ocd->ocd_blocksize,
+                             ocd->ocd_inodespace,
+                             ocd->ocd_grant_extent);
+       if (flags & OBD_CONNECT_TRANSNO)
+               seq_printf(m, "       first_transno: "LPX64"\n",
+                               ocd->ocd_transno);
+       if (flags & OBD_CONNECT_CKSUM)
+               seq_printf(m, "       cksum_types: %#x\n",
+                             ocd->ocd_cksum_types);
+       if (flags & OBD_CONNECT_MAX_EASIZE)
+               seq_printf(m, "       max_easize: %d\n", ocd->ocd_max_easize);
+       if (flags & OBD_CONNECT_MAXBYTES)
+               seq_printf(m, "       max_object_bytes: "LPU64"\n",
+                             ocd->ocd_maxbytes);
+}
+
+int lprocfs_import_seq_show(struct seq_file *m, void *data)
+{
+       struct lprocfs_counter          ret;
+       struct lprocfs_counter_header   *header;
+       struct obd_device               *obd    = (struct obd_device *)data;
+       struct obd_import               *imp;
+       struct obd_import_conn          *conn;
+       struct obd_connect_data         *ocd;
+       int                             j;
+       int                             k;
+       int                             rw      = 0;
+
+       LASSERT(obd != NULL);
+       LPROCFS_CLIMP_CHECK(obd);
+       imp = obd->u.cli.cl_import;
+       ocd = &imp->imp_connect_data;
+
+       seq_printf(m, "import:\n"
+                     "    name: %s\n"
+                     "    target: %s\n"
+                     "    state: %s\n"
+                     "    connect_flags: [",
+                     obd->obd_name,
+                     obd2cli_tgt(obd),
+                     ptlrpc_import_state_name(imp->imp_state));
+       obd_connect_seq_flags2str(m, imp->imp_connect_data.ocd_connect_flags,
+                                       ", ");
+       seq_printf(m, "]\n");
+       obd_connect_data_seqprint(m, ocd);
+       seq_printf(m, "    import_flags: [");
+       obd_import_flags2seqstr(imp, m);
+
+       seq_printf(m, "]\n"
+                     "    connection:\n"
+                     "       failover_nids: [");
+       spin_lock(&imp->imp_lock);
+       j = 0;
+       list_for_each_entry(conn, &imp->imp_conn_list, oic_item) {
+               seq_printf(m, "%s%s", j ? ", " : "",
+                          libcfs_nid2str(conn->oic_conn->c_peer.nid));
+               j++;
+       }
+       seq_printf(m, "]\n"
+                     "       current_connection: %s\n"
+                     "       connection_attempts: %u\n"
+                     "       generation: %u\n"
+                     "       in-progress_invalidations: %u\n",
+                     imp->imp_connection == NULL ? "<none>" :
+                             libcfs_nid2str(imp->imp_connection->c_peer.nid),
+                     imp->imp_conn_cnt,
+                     imp->imp_generation,
+                     atomic_read(&imp->imp_inval_count));
+       spin_unlock(&imp->imp_lock);
+
+       if (obd->obd_svc_stats == NULL)
+               goto out_climp;
+
+       header = &obd->obd_svc_stats->ls_cnt_header[PTLRPC_REQWAIT_CNTR];
+       lprocfs_stats_collect(obd->obd_svc_stats, PTLRPC_REQWAIT_CNTR, &ret);
+       if (ret.lc_count != 0) {
+               /* first argument to do_div MUST be __u64 */
+               __u64 sum = ret.lc_sum;
+               do_div(sum, ret.lc_count);
+               ret.lc_sum = sum;
+       } else
+               ret.lc_sum = 0;
+       seq_printf(m, "    rpcs:\n"
+                     "       inflight: %u\n"
+                     "       unregistering: %u\n"
+                     "       timeouts: %u\n"
+                     "       avg_waittime: "LPU64" %s\n",
+                     atomic_read(&imp->imp_inflight),
+                     atomic_read(&imp->imp_unregistering),
+                     atomic_read(&imp->imp_timeouts),
+                     ret.lc_sum, header->lc_units);
+
+       k = 0;
+       for(j = 0; j < IMP_AT_MAX_PORTALS; j++) {
+               if (imp->imp_at.iat_portal[j] == 0)
+                       break;
+               k = max_t(unsigned int, k,
+                         at_get(&imp->imp_at.iat_service_estimate[j]));
+       }
+       seq_printf(m, "    service_estimates:\n"
+                     "       services: %u sec\n"
+                     "       network: %u sec\n",
+                     k,
+                     at_get(&imp->imp_at.iat_net_latency));
+
+       seq_printf(m, "    transactions:\n"
+                     "       last_replay: "LPU64"\n"
+                     "       peer_committed: "LPU64"\n"
+                     "       last_checked: "LPU64"\n",
+                     imp->imp_last_replay_transno,
+                     imp->imp_peer_committed_transno,
+                     imp->imp_last_transno_checked);
+
+       /* avg data rates */
+       for (rw = 0; rw <= 1; rw++) {
+               lprocfs_stats_collect(obd->obd_svc_stats,
+                                     PTLRPC_LAST_CNTR + BRW_READ_BYTES + rw,
+                                     &ret);
+               if (ret.lc_sum > 0 && ret.lc_count > 0) {
+                       /* first argument to do_div MUST be __u64 */
+                       __u64 sum = ret.lc_sum;
+                       do_div(sum, ret.lc_count);
+                       ret.lc_sum = sum;
+                       seq_printf(m, "    %s_data_averages:\n"
+                                     "       bytes_per_rpc: "LPU64"\n",
+                                     rw ? "write" : "read",
+                                     ret.lc_sum);
+               }
+               k = (int)ret.lc_sum;
+               j = opcode_offset(OST_READ + rw) + EXTRA_MAX_OPCODES;
+               header = &obd->obd_svc_stats->ls_cnt_header[j];
+               lprocfs_stats_collect(obd->obd_svc_stats, j, &ret);
+               if (ret.lc_sum > 0 && ret.lc_count != 0) {
+                       /* first argument to do_div MUST be __u64 */
+                       __u64 sum = ret.lc_sum;
+                       do_div(sum, ret.lc_count);
+                       ret.lc_sum = sum;
+                       seq_printf(m, "       %s_per_rpc: "LPU64"\n",
+                                       header->lc_units, ret.lc_sum);
+                       j = (int)ret.lc_sum;
+                       if (j > 0)
+                               seq_printf(m, "       MB_per_sec: %u.%.02u\n",
+                                               k / j, (100 * k / j) % 100);
+               }
+       }
+
+out_climp:
+       LPROCFS_CLIMP_EXIT(obd);
+       return 0;
+}
+EXPORT_SYMBOL(lprocfs_import_seq_show);
+
+int lprocfs_state_seq_show(struct seq_file *m, void *data)
+{
+       struct obd_device *obd = (struct obd_device *)data;
+       struct obd_import *imp;
+       int j, k;
+
+       LASSERT(obd != NULL);
+       LPROCFS_CLIMP_CHECK(obd);
+       imp = obd->u.cli.cl_import;
+
+       seq_printf(m, "current_state: %s\n",
+                  ptlrpc_import_state_name(imp->imp_state));
+       seq_printf(m, "state_history:\n");
+       k = imp->imp_state_hist_idx;
+       for (j = 0; j < IMP_STATE_HIST_LEN; j++) {
+               struct import_state_hist *ish =
+                       &imp->imp_state_hist[(k + j) % IMP_STATE_HIST_LEN];
+               if (ish->ish_state == 0)
+                       continue;
+               seq_printf(m, " - ["CFS_TIME_T", %s]\n",
+                          ish->ish_time,
+               ptlrpc_import_state_name(ish->ish_state));
+       }
+
+       LPROCFS_CLIMP_EXIT(obd);
+       return 0;
+}
+EXPORT_SYMBOL(lprocfs_state_seq_show);
+
+int lprocfs_seq_at_hist_helper(struct seq_file *m, struct adaptive_timeout *at)
+{
+       int i;
+       for (i = 0; i < AT_BINS; i++)
+               seq_printf(m, "%3u ", at->at_hist[i]);
+       seq_printf(m, "\n");
+       return 0;
+}
+EXPORT_SYMBOL(lprocfs_seq_at_hist_helper);
+
+/* See also ptlrpc_lprocfs_timeouts_show_seq */
+int lprocfs_timeouts_seq_show(struct seq_file *m, 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;
+
+       LASSERT(obd != NULL);
+       LPROCFS_CLIMP_CHECK(obd);
+       imp = obd->u.cli.cl_import;
+
+       now = cfs_time_current_sec();
+
+       /* Some network health info for kicks */
+       s2dhms(&ts, now - imp->imp_last_reply_time);
+       seq_printf(m, "%-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);
+       seq_printf(m, "%-10s : cur %3u  worst %3u (at %ld, "DHMS_FMT" ago) ",
+                  "network", cur, worst, worstt, DHMS_VARS(&ts));
+       lprocfs_seq_at_hist_helper(m, &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);
+               seq_printf(m, "portal %-2d  : cur %3u  worst %3u (at %ld, "
+                          DHMS_FMT" ago) ", imp->imp_at.iat_portal[i],
+                          cur, worst, worstt, DHMS_VARS(&ts));
+               lprocfs_seq_at_hist_helper(m, &imp->imp_at.iat_service_estimate[i]);
+       }
+
+       LPROCFS_CLIMP_EXIT(obd);
+       return 0;
+}
+EXPORT_SYMBOL(lprocfs_timeouts_seq_show);
+
+int lprocfs_connect_flags_seq_show(struct seq_file *m, void *data)
+{
+       struct obd_device *obd = data;
+       __u64 flags;
+
+       LPROCFS_CLIMP_CHECK(obd);
+       flags = obd->u.cli.cl_import->imp_connect_data.ocd_connect_flags;
+       seq_printf(m, "flags="LPX64"\n", flags);
+       obd_connect_seq_flags2str(m, flags, "\n");
+       seq_printf(m, "\n");
+       LPROCFS_CLIMP_EXIT(obd);
+       return 0;
+}
+EXPORT_SYMBOL(lprocfs_connect_flags_seq_show);
+
+#ifdef HAVE_SERVER_SUPPORT
+int lprocfs_num_exports_seq_show(struct seq_file *m, void *data)
+{
+       struct obd_device *obd = data;
+
+       LASSERT(obd != NULL);
+       return seq_printf(m, "%u\n", obd->obd_num_exports);
+}
+EXPORT_SYMBOL(lprocfs_num_exports_seq_show);
+#endif
+
+#ifndef HAVE_ONLY_PROCFS_SEQ
+
+int lprocfs_rd_uint(char *page, char **start, off_t off,
+                   int count, int *eof, void *data)
+{
+       unsigned int *temp = data;
+       return snprintf(page, count, "%u\n", *temp);
+}
+EXPORT_SYMBOL(lprocfs_rd_uint);
+
 int lprocfs_rd_u64(char *page, char **start, off_t off,
                    int count, int *eof, void *data)
 {
@@ -543,17 +1392,17 @@ EXPORT_SYMBOL(lprocfs_rd_u64);
 int lprocfs_rd_atomic(char *page, char **start, off_t off,
                    int count, int *eof, void *data)
 {
-        cfs_atomic_t *atom = data;
+       atomic_t *atom = data;
         LASSERT(atom != NULL);
         *eof = 1;
-        return snprintf(page, count, "%d\n", cfs_atomic_read(atom));
+       return snprintf(page, count, "%d\n", atomic_read(atom));
 }
 EXPORT_SYMBOL(lprocfs_rd_atomic);
 
 int lprocfs_wr_atomic(struct file *file, const char *buffer,
                       unsigned long count, void *data)
 {
-        cfs_atomic_t *atm = data;
+       atomic_t *atm = data;
         int val = 0;
         int rc;
 
@@ -564,7 +1413,7 @@ int lprocfs_wr_atomic(struct file *file, const char *buffer,
         if (val <= 0)
                 return -ERANGE;
 
-        cfs_atomic_set(atm, val);
+       atomic_set(atm, val);
         return count;
 }
 EXPORT_SYMBOL(lprocfs_wr_atomic);
@@ -733,65 +1582,24 @@ int lprocfs_rd_conn_uuid(char *page, char **start, off_t off, int count,
 {
         struct obd_device *obd = data;
         struct ptlrpc_connection *conn;
-        int rc = 0;
-
-        LASSERT(obd != NULL);
-
-        LPROCFS_CLIMP_CHECK(obd);
-        conn = obd->u.cli.cl_import->imp_connection;
-        *eof = 1;
-        if (conn && 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;
-}
-EXPORT_SYMBOL(lprocfs_rd_conn_uuid);
-
-/** add up per-cpu counters */
-void lprocfs_stats_collect(struct lprocfs_stats *stats, int idx,
-                          struct lprocfs_counter *cnt)
-{
-       unsigned int                    num_entry;
-       struct lprocfs_counter          *percpu_cntr;
-       struct lprocfs_counter_header   *cntr_header;
-       int                             i;
-       unsigned long                   flags = 0;
-
-       memset(cnt, 0, sizeof(*cnt));
-
-       if (stats == NULL) {
-               /* set count to 1 to avoid divide-by-zero errs in callers */
-               cnt->lc_count = 1;
-               return;
-       }
-
-       cnt->lc_min = LC_MIN_INIT;
-
-       num_entry = lprocfs_stats_lock(stats, LPROCFS_GET_NUM_CPU, &flags);
-
-       for (i = 0; i < num_entry; i++) {
-               if (stats->ls_percpu[i] == NULL)
-                       continue;
-               cntr_header = &stats->ls_cnt_header[idx];
-               percpu_cntr = lprocfs_stats_counter_get(stats, i, idx);
-
-               cnt->lc_count += percpu_cntr->lc_count;
-               cnt->lc_sum += percpu_cntr->lc_sum;
-               if (percpu_cntr->lc_min < cnt->lc_min)
-                       cnt->lc_min = percpu_cntr->lc_min;
-               if (percpu_cntr->lc_max > cnt->lc_max)
-                       cnt->lc_max = percpu_cntr->lc_max;
-               cnt->lc_sumsquare += percpu_cntr->lc_sumsquare;
-       }
+        int rc = 0;
 
-       lprocfs_stats_unlock(stats, LPROCFS_GET_NUM_CPU, &flags);
+        LASSERT(obd != NULL);
+
+        LPROCFS_CLIMP_CHECK(obd);
+        conn = obd->u.cli.cl_import->imp_connection;
+        *eof = 1;
+        if (conn && 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;
 }
-EXPORT_SYMBOL(lprocfs_stats_collect);
+EXPORT_SYMBOL(lprocfs_rd_conn_uuid);
 
 /**
  * Append a space separated list of current set flags to str.
@@ -814,80 +1622,6 @@ static int obd_import_flags2str(struct obd_import *imp, char *str, int max)
 }
 #undef flags2str
 
-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(obsolete)",
-        "getattr_by_fid",
-        "no_oh_for_devices",
-        "remote_client",
-        "remote_client_by_force",
-        "max_byte_per_rpc",
-        "64bit_qdata",
-        "mds_capability",
-        "oss_capability",
-        "early_lock_cancel",
-        "som",
-        "adaptive_timeouts",
-        "lru_resize",
-        "mds_mds_connection",
-        "real_conn",
-        "change_qunit_size",
-        "alt_checksum_algorithm",
-        "fid_is_enabled",
-        "version_recovery",
-        "pools",
-        "grant_shrink",
-        "skip_orphan",
-        "large_ea",
-        "full20",
-        "layout_lock",
-        "64bithash",
-        "object_max_bytes",
-        "imp_recov",
-        "jobstats",
-        "umask",
-        "einprogress",
-        "grant_param",
-       "flock_owner",
-       "lvb_type",
-       "nanoseconds_times",
-       "lightweight_conn",
-       "short_io",
-       "pingless",
-       "unknown",
-        NULL
-};
-
-int obd_connect_flags2str(char *page, int count, __u64 flags, char *sep)
-{
-        __u64 mask = 1;
-        int i, ret = 0;
-
-        for (i = 0; obd_connect_names[i] != NULL; i++, mask <<= 1) {
-                if (flags & mask)
-                        ret += snprintf(page + ret, count - ret, "%s%s",
-                                        ret ? sep : "", obd_connect_names[i]);
-        }
-        if (flags & ~(mask - 1))
-                ret += snprintf(page + ret, count - ret,
-                                "%sunknown flags "LPX64,
-                                ret ? sep : "", flags & ~(mask - 1));
-        return ret;
-}
-EXPORT_SYMBOL(obd_connect_flags2str);
-
 int lprocfs_rd_import(char *page, char **start, off_t off, int count,
                       int *eof, void *data)
 {
@@ -946,7 +1680,7 @@ int lprocfs_rd_import(char *page, char **start, off_t off, int count,
                              libcfs_nid2str(imp->imp_connection->c_peer.nid),
                      imp->imp_conn_cnt,
                      imp->imp_generation,
-                     cfs_atomic_read(&imp->imp_inval_count));
+                     atomic_read(&imp->imp_inval_count));
        spin_unlock(&imp->imp_lock);
 
        if (obd->obd_svc_stats == NULL)
@@ -967,9 +1701,9 @@ int lprocfs_rd_import(char *page, char **start, off_t off, int count,
                       "       unregistering: %u\n"
                       "       timeouts: %u\n"
                       "       avg_waittime: "LPU64" %s\n",
-                      cfs_atomic_read(&imp->imp_inflight),
-                      cfs_atomic_read(&imp->imp_unregistering),
-                      cfs_atomic_read(&imp->imp_timeouts),
+                     atomic_read(&imp->imp_inflight),
+                     atomic_read(&imp->imp_unregistering),
+                     atomic_read(&imp->imp_timeouts),
                      ret.lc_sum, header->lc_units);
 
         k = 0;
@@ -1151,6 +1885,7 @@ int lprocfs_rd_connect_flags(char *page, char **start, off_t off,
 }
 EXPORT_SYMBOL(lprocfs_rd_connect_flags);
 
+#ifdef HAVE_SERVER_SUPPORT
 int lprocfs_rd_num_exports(char *page, char **start, off_t off, int count,
                            int *eof,  void *data)
 {
@@ -1161,6 +1896,7 @@ int lprocfs_rd_num_exports(char *page, char **start, off_t off, int count,
         return snprintf(page, count, "%u\n", obd->obd_num_exports);
 }
 EXPORT_SYMBOL(lprocfs_rd_num_exports);
+#endif
 
 int lprocfs_rd_numrefs(char *page, char **start, off_t off, int count,
                        int *eof, void *data)
@@ -1175,23 +1911,46 @@ EXPORT_SYMBOL(lprocfs_rd_numrefs);
 
 int lprocfs_obd_setup(struct obd_device *obd, struct lprocfs_vars *list)
 {
-        int rc = 0;
+       int rc = 0;
 
-        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;
+       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;
 }
 EXPORT_SYMBOL(lprocfs_obd_setup);
+#endif
+
+int
+lprocfs_seq_obd_setup(struct obd_device *obd)
+{
+       int rc = 0;
+
+       LASSERT(obd != NULL);
+       LASSERT(obd->obd_vars != NULL);
+       LASSERT(obd->obd_magic == OBD_DEVICE_MAGIC);
+       LASSERT(obd->obd_type->typ_procroot != NULL);
+
+       obd->obd_proc_entry = lprocfs_seq_register(obd->obd_name,
+                                                  obd->obd_type->typ_procroot,
+                                                  obd->obd_vars, 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;
+}
+EXPORT_SYMBOL(lprocfs_seq_obd_setup);
 
 int lprocfs_obd_cleanup(struct obd_device *obd)
 {
@@ -1199,7 +1958,6 @@ int lprocfs_obd_cleanup(struct obd_device *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);
                 obd->obd_proc_exports_entry = NULL;
         }
@@ -1216,7 +1974,7 @@ static void lprocfs_free_client_stats(struct nid_stat *client_stat)
        CDEBUG(D_CONFIG, "stat %p - data %p/%p\n", client_stat,
               client_stat->nid_proc, client_stat->nid_stats);
 
-        LASSERTF(cfs_atomic_read(&client_stat->nid_exp_ref_count) == 0,
+       LASSERTF(atomic_read(&client_stat->nid_exp_ref_count) == 0,
                  "nid %s:count %d\n", libcfs_nid2str(client_stat->nid),
                  atomic_read(&client_stat->nid_exp_ref_count));
 
@@ -1253,6 +2011,44 @@ void lprocfs_free_per_client_stats(struct obd_device *obd)
 }
 EXPORT_SYMBOL(lprocfs_free_per_client_stats);
 
+int lprocfs_stats_alloc_one(struct lprocfs_stats *stats, unsigned int cpuid)
+{
+       struct lprocfs_counter  *cntr;
+       unsigned int            percpusize;
+       int                     rc = -ENOMEM;
+       unsigned long           flags = 0;
+       int                     i;
+
+       LASSERT(stats->ls_percpu[cpuid] == NULL);
+       LASSERT((stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU) == 0);
+
+       percpusize = lprocfs_stats_counter_size(stats);
+       LIBCFS_ALLOC_ATOMIC(stats->ls_percpu[cpuid], percpusize);
+       if (stats->ls_percpu[cpuid] != NULL) {
+               rc = 0;
+               if (unlikely(stats->ls_biggest_alloc_num <= cpuid)) {
+                       if (stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE)
+                               spin_lock_irqsave(&stats->ls_lock, flags);
+                       else
+                               spin_lock(&stats->ls_lock);
+                       if (stats->ls_biggest_alloc_num <= cpuid)
+                               stats->ls_biggest_alloc_num = cpuid + 1;
+                       if (stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE) {
+                               spin_unlock_irqrestore(&stats->ls_lock, flags);
+                       } else {
+                               spin_unlock(&stats->ls_lock);
+                       }
+               }
+               /* initialize the ls_percpu[cpuid] non-zero counter */
+               for (i = 0; i < stats->ls_num; ++i) {
+                       cntr = lprocfs_stats_counter_get(stats, cpuid, i);
+                       cntr->lc_min = LC_MIN_INIT;
+               }
+       }
+       return rc;
+}
+EXPORT_SYMBOL(lprocfs_stats_alloc_one);
+
 struct lprocfs_stats *lprocfs_alloc_stats(unsigned int num,
                                           enum lprocfs_stats_flags flags)
 {
@@ -1270,7 +2066,7 @@ struct lprocfs_stats *lprocfs_alloc_stats(unsigned int num,
        if (flags & LPROCFS_STATS_FLAG_NOPERCPU)
                num_entry = 1;
        else
-               num_entry = cfs_num_possible_cpus();
+               num_entry = num_possible_cpus();
 
        /* alloc percpu pointers for all possible cpu slots */
        LIBCFS_ALLOC(stats, offsetof(typeof(*stats), ls_percpu[num_entry]));
@@ -1323,7 +2119,7 @@ void lprocfs_free_stats(struct lprocfs_stats **statsh)
        if (stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU)
                num_entry = 1;
        else
-               num_entry = cfs_num_possible_cpus();
+               num_entry = num_possible_cpus();
 
        percpusize = lprocfs_stats_counter_size(stats);
        for (i = 0; i < num_entry; i++)
@@ -1339,7 +2135,6 @@ EXPORT_SYMBOL(lprocfs_free_stats);
 void lprocfs_clear_stats(struct lprocfs_stats *stats)
 {
        struct lprocfs_counter          *percpu_cntr;
-       struct lprocfs_counter_header   *header;
        int                             i;
        int                             j;
        unsigned int                    num_entry;
@@ -1351,7 +2146,6 @@ void lprocfs_clear_stats(struct lprocfs_stats *stats)
                if (stats->ls_percpu[i] == NULL)
                        continue;
                for (j = 0; j < stats->ls_num; j++) {
-                       header = &stats->ls_cnt_header[j];
                        percpu_cntr = lprocfs_stats_counter_get(stats, i, j);
                        percpu_cntr->lc_count           = 0;
                        percpu_cntr->lc_min             = LC_MIN_INIT;
@@ -1408,7 +2202,7 @@ static int lprocfs_stats_seq_show(struct seq_file *p, void *v)
        if (idx == 0) {
                struct timeval now;
 
-               cfs_gettimeofday(&now);
+               do_gettimeofday(&now);
                rc = seq_printf(p, "%-25s %lu.%lu secs.usecs\n",
                                "snapshot_time", now.tv_sec, now.tv_usec);
                if (rc < 0)
@@ -1450,21 +2244,19 @@ struct seq_operations lprocfs_stats_seq_sops = {
 
 static int lprocfs_stats_seq_open(struct inode *inode, struct file *file)
 {
-        struct proc_dir_entry *dp = PDE(inode);
-        struct seq_file *seq;
-        int rc;
-
-        if (LPROCFS_ENTRY_AND_CHECK(dp))
-                return -ENOENT;
+       struct seq_file *seq;
+       int rc;
 
-        rc = seq_open(file, &lprocfs_stats_seq_sops);
-        if (rc) {
-                LPROCFS_EXIT();
-                return rc;
-        }
-        seq = file->private_data;
-        seq->private = dp->data;
-        return 0;
+#ifndef HAVE_ONLY_PROCFS_SEQ
+       if (LPROCFS_ENTRY_CHECK(PDE(inode)))
+               return -ENOENT;
+#endif
+       rc = seq_open(file, &lprocfs_stats_seq_sops);
+       if (rc)
+               return rc;
+       seq = file->private_data;
+       seq->private = PDE_DATA(inode);
+       return 0;
 }
 
 struct file_operations lprocfs_stats_seq_fops = {
@@ -1479,22 +2271,14 @@ struct file_operations lprocfs_stats_seq_fops = {
 int lprocfs_register_stats(struct proc_dir_entry *root, const char *name,
                            struct lprocfs_stats *stats)
 {
-        struct proc_dir_entry *entry;
-        LASSERT(root != NULL);
+       struct proc_dir_entry *entry;
+       LASSERT(root != NULL);
 
-        LPROCFS_WRITE_ENTRY();
-        entry = create_proc_entry(name, 0644, root);
-        if (entry) {
-                entry->proc_fops = &lprocfs_stats_seq_fops;
-                entry->data = stats;
-        }
-
-        LPROCFS_WRITE_EXIT();
-
-        if (entry == NULL)
-                return -ENOMEM;
-
-        return 0;
+       entry = proc_create_data(name, 0644, root,
+                                &lprocfs_stats_seq_fops, stats);
+       if (entry == NULL)
+               return -ENOMEM;
+       return 0;
 }
 EXPORT_SYMBOL(lprocfs_register_stats);
 
@@ -1565,8 +2349,6 @@ void lprocfs_init_ops_stats(int num_private_stats, struct lprocfs_stats *stats)
         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, 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, create_async);
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, destroy);
@@ -1574,24 +2356,12 @@ void lprocfs_init_ops_stats(int num_private_stats, struct lprocfs_stats *stats)
         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, 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);
-        LPROCFS_OBD_OP_INIT(num_private_stats, stats, copy);
-        LPROCFS_OBD_OP_INIT(num_private_stats, stats, iterate);
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, preprw);
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, commitrw);
-        LPROCFS_OBD_OP_INIT(num_private_stats, stats, enqueue);
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, change_cbdata);
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, find_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, init_export);
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, destroy_export);
-        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);
@@ -1610,6 +2380,8 @@ void lprocfs_init_ops_stats(int num_private_stats, struct lprocfs_stats *stats)
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, pool_del);
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, getref);
         LPROCFS_OBD_OP_INIT(num_private_stats, stats, putref);
+
+       CLASSERT(NUM_OBD_STATS == OBD_COUNTER_OFFSET(putref) + 1);
 }
 EXPORT_SYMBOL(lprocfs_init_ops_stats);
 
@@ -1623,8 +2395,7 @@ int lprocfs_alloc_obd_stats(struct obd_device *obd, unsigned num_private_stats)
         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 */;
+       num_stats = NUM_OBD_STATS + num_private_stats;
         stats = lprocfs_alloc_stats(num_stats, 0);
         if (stats == NULL)
                 return -ENOMEM;
@@ -1659,12 +2430,18 @@ void lprocfs_free_obd_stats(struct obd_device *obd)
 }
 EXPORT_SYMBOL(lprocfs_free_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)
+/* Note that we only init md counters for ops whose offset is less
+ * than NUM_MD_STATS. This is explained in a comment in the definition
+ * of struct md_ops. */
+#define LPROCFS_MD_OP_INIT(base, stats, op)                                   \
+       do {                                                                   \
+               unsigned int _idx = base + MD_COUNTER_OFFSET(op);              \
+                                                                              \
+               if (MD_COUNTER_OFFSET(op) < NUM_MD_STATS) {                    \
+                       LASSERT(_idx < stats->ls_num);                         \
+                       lprocfs_counter_init(stats, _idx, 0, #op, "reqs");     \
+               }                                                              \
+       } while (0)
 
 void lprocfs_init_mps_stats(int num_private_stats, struct lprocfs_stats *stats)
 {
@@ -1682,14 +2459,17 @@ void lprocfs_init_mps_stats(int num_private_stats, struct lprocfs_stats *stats)
         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, fsync);
         LPROCFS_MD_OP_INIT(num_private_stats, stats, readpage);
+       LPROCFS_MD_OP_INIT(num_private_stats, stats, read_entry);
         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, update_lsm_md);
+       LPROCFS_MD_OP_INIT(num_private_stats, stats, merge_attr);
         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);
@@ -1704,52 +2484,65 @@ void lprocfs_init_mps_stats(int num_private_stats, struct lprocfs_stats *stats)
 EXPORT_SYMBOL(lprocfs_init_mps_stats);
 
 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);
+                          unsigned int num_private_stats)
+{
+       struct lprocfs_stats *stats;
+       unsigned int num_stats;
+       int rc, i;
+
+       CLASSERT(offsetof(struct md_ops, MD_STATS_FIRST_OP) == 0);
+       CLASSERT(_MD_COUNTER_OFFSET(MD_STATS_FIRST_OP) == 0);
+       CLASSERT(_MD_COUNTER_OFFSET(MD_STATS_LAST_OP) > 0);
+
+       /* TODO Ensure that this function is only used where
+        * appropriate by adding an assertion to the effect that
+        * obd->obd_type->typ_md_ops is not NULL. We can't do this now
+        * because mdt_procfs_init() uses this function to allocate
+        * the stats backing /proc/fs/lustre/mdt/.../md_stats but the
+        * mdt layer does not use the md_ops interface. This is
+        * confusing and a waste of memory. See LU-2484.
+        */
+       LASSERT(obd->obd_proc_entry != NULL);
+       LASSERT(obd->obd_md_stats == NULL);
+       LASSERT(obd->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;
+       num_stats = NUM_MD_STATS + num_private_stats;
+       stats = lprocfs_alloc_stats(num_stats, 0);
+       if (stats == NULL)
+               return -ENOMEM;
 
-        lprocfs_init_mps_stats(num_private_stats, stats);
+       lprocfs_init_mps_stats(num_private_stats, stats);
 
-        for (i = num_private_stats; i < num_stats; i++) {
+       for (i = num_private_stats; i < num_stats; i++) {
                if (stats->ls_cnt_header[i].lc_name == NULL) {
-                        CERROR("Missing md_stat initializer md_op "
-                               "operation at offset %d. Aborting.\n",
-                               i - num_private_stats);
-                        LBUG();
-                }
-        }
-        rc = lprocfs_register_stats(obd->obd_proc_entry, "md_stats", stats);
-        if (rc < 0) {
-                lprocfs_free_stats(&stats);
-        } else {
-                obd->md_stats  = stats;
-                obd->md_cntr_base = num_private_stats;
-        }
-        return rc;
+                       CERROR("Missing md_stat initializer md_op "
+                              "operation at offset %d. Aborting.\n",
+                              i - num_private_stats);
+                       LBUG();
+               }
+       }
+
+       rc = lprocfs_register_stats(obd->obd_proc_entry, "md_stats", stats);
+       if (rc < 0) {
+               lprocfs_free_stats(&stats);
+       } else {
+               obd->obd_md_stats = stats;
+               obd->obd_md_cntr_base = num_private_stats;
+       }
+
+       return rc;
 }
 EXPORT_SYMBOL(lprocfs_alloc_md_stats);
 
 void lprocfs_free_md_stats(struct obd_device *obd)
 {
-        struct lprocfs_stats *stats = obd->md_stats;
+       struct lprocfs_stats *stats = obd->obd_md_stats;
 
-        if (stats != NULL) {
-                obd->md_stats = NULL;
-                obd->md_cntr_base = 0;
-                lprocfs_free_stats(&stats);
-        }
+       if (stats != NULL) {
+               obd->obd_md_stats = NULL;
+               obd->obd_md_cntr_base = 0;
+               lprocfs_free_stats(&stats);
+       }
 }
 EXPORT_SYMBOL(lprocfs_free_md_stats);
 
@@ -1776,6 +2569,111 @@ void lprocfs_init_ldlm_stats(struct lprocfs_stats *ldlm_stats)
 }
 EXPORT_SYMBOL(lprocfs_init_ldlm_stats);
 
+#ifdef HAVE_SERVER_SUPPORT
+int lprocfs_exp_nid_seq_show(struct seq_file *m, void *data)
+{
+       struct obd_export *exp = m->private;
+       LASSERT(exp != NULL);
+       return seq_printf(m, "%s\n", obd_export_nid2str(exp));
+}
+
+int lprocfs_exp_print_uuid_seq(cfs_hash_t *hs, cfs_hash_bd_t *bd,
+                               cfs_hlist_node_t *hnode, void *cb_data)
+
+{
+       struct obd_export *exp = cfs_hash_object(hs, hnode);
+       struct seq_file *m = cb_data;
+
+       if (exp->exp_nid_stats)
+               seq_printf(m, "%s\n", obd_uuid2str(&exp->exp_client_uuid));
+       return 0;
+}
+
+int lprocfs_exp_uuid_seq_show(struct seq_file *m, void *data)
+{
+       struct nid_stat *stats = m->private;
+       struct obd_device *obd = stats->nid_obd;
+
+       cfs_hash_for_each_key(obd->obd_nid_hash, &stats->nid,
+                               lprocfs_exp_print_uuid_seq, m);
+       return 0;
+}
+LPROC_SEQ_FOPS_RO(lprocfs_exp_uuid);
+
+int lprocfs_exp_print_hash_seq(cfs_hash_t *hs, cfs_hash_bd_t *bd,
+                               cfs_hlist_node_t *hnode, void *cb_data)
+
+{
+       struct seq_file *m = cb_data;
+       struct obd_export *exp = cfs_hash_object(hs, hnode);
+
+       if (exp->exp_lock_hash != NULL) {
+               cfs_hash_debug_header_seq(m);
+               cfs_hash_debug_str_seq(hs, m);
+       }
+       return 0;
+}
+
+int lprocfs_exp_hash_seq_show(struct seq_file *m, void *data)
+{
+       struct nid_stat *stats = m->private;
+       struct obd_device *obd = stats->nid_obd;
+
+       cfs_hash_for_each_key(obd->obd_nid_hash, &stats->nid,
+                               lprocfs_exp_print_hash_seq, m);
+       return 0;
+}
+LPROC_SEQ_FOPS_RO(lprocfs_exp_hash);
+
+int lprocfs_nid_stats_clear_seq_show(struct seq_file *m, void *data)
+{
+       return seq_printf(m, "%s\n", "Write into this file to clear all nid "
+                               "stats and stale nid entries");
+}
+EXPORT_SYMBOL(lprocfs_nid_stats_clear_seq_show);
+
+static int lprocfs_nid_stats_clear_write_cb(void *obj, void *data)
+{
+       struct nid_stat *stat = obj;
+       ENTRY;
+
+       CDEBUG(D_INFO,"refcnt %d\n", atomic_read(&stat->nid_exp_ref_count));
+       if (atomic_read(&stat->nid_exp_ref_count) == 1) {
+               /* object has only hash references. */
+               spin_lock(&stat->nid_obd->obd_nid_lock);
+               cfs_list_move(&stat->nid_list, data);
+               spin_unlock(&stat->nid_obd->obd_nid_lock);
+               RETURN(1);
+       }
+       /* we has reference to object - only clear data*/
+       if (stat->nid_stats)
+               lprocfs_clear_stats(stat->nid_stats);
+
+       RETURN(0);
+}
+
+ssize_t
+lprocfs_nid_stats_clear_seq_write(struct file *file, const char *buffer,
+                                       size_t count, loff_t *off)
+{
+       struct obd_device *obd = ((struct seq_file *)file->private_data)->private;
+       struct nid_stat *client_stat;
+       CFS_LIST_HEAD(free_list);
+
+       cfs_hash_cond_del(obd->obd_nid_stats_hash,
+                               lprocfs_nid_stats_clear_write_cb, &free_list);
+
+       while (!cfs_list_empty(&free_list)) {
+               client_stat = cfs_list_entry(free_list.next, struct nid_stat,
+                                               nid_list);
+               cfs_list_del_init(&client_stat->nid_list);
+               lprocfs_free_client_stats(client_stat);
+       }
+       return count;
+}
+EXPORT_SYMBOL(lprocfs_nid_stats_clear_seq_write);
+
+#ifndef HAVE_ONLY_PROCFS_SEQ
 int lprocfs_exp_rd_nid(char *page, char **start, off_t off, int count,
                          int *eof,  void *data)
 {
@@ -1786,10 +2684,10 @@ int lprocfs_exp_rd_nid(char *page, char **start, off_t off, int count,
 }
 
 struct exp_uuid_cb_data {
-        char                   *page;
-        int                     count;
-        int                    *eof;
-        int                    *len;
+       char                   *page;
+       int                     count;
+       int                    *eof;
+       int                    *len;
 };
 
 static void
@@ -1878,26 +2776,6 @@ int lprocfs_nid_stats_clear_read(char *page, char **start, off_t off,
 }
 EXPORT_SYMBOL(lprocfs_nid_stats_clear_read);
 
-static int lprocfs_nid_stats_clear_write_cb(void *obj, void *data)
-{
-        struct nid_stat *stat = obj;
-        ENTRY;
-
-        CDEBUG(D_INFO,"refcnt %d\n", cfs_atomic_read(&stat->nid_exp_ref_count));
-        if (cfs_atomic_read(&stat->nid_exp_ref_count) == 1) {
-                /* object has only hash references. */
-               spin_lock(&stat->nid_obd->obd_nid_lock);
-               cfs_list_move(&stat->nid_list, data);
-               spin_unlock(&stat->nid_obd->obd_nid_lock);
-                RETURN(1);
-        }
-        /* we has reference to object - only clear data*/
-        if (stat->nid_stats)
-                lprocfs_clear_stats(stat->nid_stats);
-
-        RETURN(0);
-}
-
 int lprocfs_nid_stats_clear_write(struct file *file, const char *buffer,
                                   unsigned long count, void *data)
 {
@@ -1918,6 +2796,7 @@ int lprocfs_nid_stats_clear_write(struct file *file, const char *buffer,
         return count;
 }
 EXPORT_SYMBOL(lprocfs_nid_stats_clear_write);
+#endif
 
 int lprocfs_exp_setup(struct obd_export *exp, lnet_nid_t *nid, int *newnid)
 {
@@ -1940,6 +2819,13 @@ int lprocfs_exp_setup(struct obd_export *exp, lnet_nid_t *nid, int *newnid)
         if (!nid || *nid == LNET_NID_ANY)
                 RETURN(0);
 
+       spin_lock(&exp->exp_lock);
+       if (exp->exp_nid_stats != NULL) {
+               spin_unlock(&exp->exp_lock);
+               RETURN(-EALREADY);
+       }
+       spin_unlock(&exp->exp_lock);
+
         obd = exp->exp_obd;
 
         CDEBUG(D_CONFIG, "using hash %p\n", obd->obd_nid_stats_hash);
@@ -1951,61 +2837,80 @@ int lprocfs_exp_setup(struct obd_export *exp, lnet_nid_t *nid, int *newnid)
         new_stat->nid               = *nid;
         new_stat->nid_obd           = exp->exp_obd;
         /* we need set default refcount to 1 to balance obd_disconnect */
-        cfs_atomic_set(&new_stat->nid_exp_ref_count, 1);
+       atomic_set(&new_stat->nid_exp_ref_count, 1);
 
         old_stat = cfs_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),
-               cfs_atomic_read(&new_stat->nid_exp_ref_count));
-
-        /* We need to release old stats because lprocfs_exp_cleanup() hasn't
-         * been and will never be called. */
-        if (exp->exp_nid_stats) {
-                nidstat_putref(exp->exp_nid_stats);
-                exp->exp_nid_stats = NULL;
-        }
-
-        /* Return -EALREADY here so that we know that the /proc
-         * entry already has been created */
-        if (old_stat != new_stat) {
-                exp->exp_nid_stats = old_stat;
-                GOTO(destroy_new, rc = -EALREADY);
-        }
+              atomic_read(&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) {
+               spin_lock(&exp->exp_lock);
+               if (exp->exp_nid_stats) {
+                       LASSERT(exp->exp_nid_stats == old_stat);
+                       nidstat_putref(exp->exp_nid_stats);
+               }
+               exp->exp_nid_stats = old_stat;
+               spin_unlock(&exp->exp_lock);
+               GOTO(destroy_new, rc = -EALREADY);
+       }
         /* not found - create */
         OBD_ALLOC(buffer, LNET_NIDSTR_SIZE);
         if (buffer == NULL)
                 GOTO(destroy_new, rc = -ENOMEM);
 
-        memcpy(buffer, libcfs_nid2str(*nid), LNET_NIDSTR_SIZE);
+       memcpy(buffer, libcfs_nid2str(*nid), LNET_NIDSTR_SIZE);
+#ifndef HAVE_ONLY_PROCFS_SEQ
         new_stat->nid_proc = lprocfs_register(buffer,
-                                              obd->obd_proc_exports_entry,
-                                              NULL, NULL);
-        OBD_FREE(buffer, LNET_NIDSTR_SIZE);
-
-        if (new_stat->nid_proc == NULL) {
-                CERROR("Error making export directory for nid %s\n",
-                       libcfs_nid2str(*nid));
-                GOTO(destroy_new_ns, rc = -ENOMEM);
-        }
+                                               obd->obd_proc_exports_entry,
+                                               NULL, NULL);
+#else
+       new_stat->nid_proc = lprocfs_seq_register(buffer,
+                                               obd->obd_proc_exports_entry,
+                                               NULL, NULL);
+#endif
+       OBD_FREE(buffer, LNET_NIDSTR_SIZE);
+
+       if (IS_ERR(new_stat->nid_proc)) {
+               rc = PTR_ERR(new_stat->nid_proc);
+               new_stat->nid_proc = NULL;
+               CERROR("%s: cannot create proc entry for export %s: rc = %d\n",
+                      obd->obd_name, libcfs_nid2str(*nid), rc);
+               GOTO(destroy_new_ns, rc);
+       }
 
+#ifndef HAVE_ONLY_PROCFS_SEQ
         entry = lprocfs_add_simple(new_stat->nid_proc, "uuid",
                                    lprocfs_exp_rd_uuid, NULL, new_stat, NULL);
+#else
+       entry = lprocfs_add_simple(new_stat->nid_proc, "uuid",
+                                       new_stat, &lprocfs_exp_uuid_fops);
+#endif
         if (IS_ERR(entry)) {
                 CWARN("Error adding the NID stats file\n");
                 rc = PTR_ERR(entry);
                 GOTO(destroy_new_ns, rc);
         }
 
+#ifndef HAVE_ONLY_PROCFS_SEQ
         entry = lprocfs_add_simple(new_stat->nid_proc, "hash",
                                    lprocfs_exp_rd_hash, NULL, new_stat, NULL);
+#else
+       entry = lprocfs_add_simple(new_stat->nid_proc, "hash",
+                                       new_stat, &lprocfs_exp_hash_fops);
+#endif
         if (IS_ERR(entry)) {
                 CWARN("Error adding the hash file\n");
                 rc = PTR_ERR(entry);
                 GOTO(destroy_new_ns, rc);
         }
 
-        exp->exp_nid_stats = new_stat;
+       spin_lock(&exp->exp_lock);
+       exp->exp_nid_stats = new_stat;
+       spin_unlock(&exp->exp_lock);
         *newnid = 1;
         /* protect competitive add to list, not need locking on destroy */
        spin_lock(&obd->obd_nid_lock);
@@ -2025,6 +2930,7 @@ destroy_new:
         RETURN(rc);
 }
 EXPORT_SYMBOL(lprocfs_exp_setup);
+#endif
 
 int lprocfs_exp_cleanup(struct obd_export *exp)
 {
@@ -2040,6 +2946,47 @@ int lprocfs_exp_cleanup(struct obd_export *exp)
 }
 EXPORT_SYMBOL(lprocfs_exp_cleanup);
 
+__s64 lprocfs_read_helper(struct lprocfs_counter *lc,
+                         struct lprocfs_counter_header *header,
+                         enum lprocfs_stats_flags flags,
+                         enum lprocfs_fields_flags field)
+{
+       __s64 ret = 0;
+
+       if (lc == NULL || header == NULL)
+               RETURN(0);
+
+       switch (field) {
+               case LPROCFS_FIELDS_FLAGS_CONFIG:
+                       ret = header->lc_config;
+                       break;
+               case LPROCFS_FIELDS_FLAGS_SUM:
+                       ret = lc->lc_sum;
+                       if ((flags & LPROCFS_STATS_FLAG_IRQ_SAFE) != 0)
+                               ret += lc->lc_sum_irq;
+                       break;
+               case LPROCFS_FIELDS_FLAGS_MIN:
+                       ret = lc->lc_min;
+                       break;
+               case LPROCFS_FIELDS_FLAGS_MAX:
+                       ret = lc->lc_max;
+                       break;
+               case LPROCFS_FIELDS_FLAGS_AVG:
+                       ret = (lc->lc_max - lc->lc_min) / 2;
+                       break;
+               case LPROCFS_FIELDS_FLAGS_SUMSQUARE:
+                       ret = lc->lc_sumsquare;
+                       break;
+               case LPROCFS_FIELDS_FLAGS_COUNT:
+                       ret = lc->lc_count;
+                       break;
+               default:
+                       break;
+       };
+       RETURN(ret);
+}
+EXPORT_SYMBOL(lprocfs_read_helper);
+
 int lprocfs_write_helper(const char *buffer, unsigned long count,
                          int *val)
 {
@@ -2145,6 +3092,31 @@ int lprocfs_read_frac_helper(char *buffer, unsigned long count, long val,
 }
 EXPORT_SYMBOL(lprocfs_read_frac_helper);
 
+int lprocfs_seq_read_frac_helper(struct seq_file *m, long val, int mult)
+{
+       long decimal_val, frac_val;
+
+       decimal_val = val / mult;
+       seq_printf(m, "%ld", decimal_val);
+       frac_val = val % mult;
+
+       if (frac_val > 0) {
+               frac_val *= 100;
+               frac_val /= mult;
+       }
+       if (frac_val > 0) {
+               /* Three cases: x0, xx, 0x */
+               if ((frac_val % 10) != 0)
+                       seq_printf(m, ".%ld", frac_val);
+               else
+                       seq_printf(m, ".%ld", frac_val / 10);
+       }
+
+       seq_printf(m, "\n");
+       return 0;
+}
+EXPORT_SYMBOL(lprocfs_seq_read_frac_helper);
+
 int lprocfs_write_u64_helper(const char *buffer, unsigned long count,__u64 *val)
 {
         return lprocfs_write_frac_u64_helper(buffer, count, val, 1);
@@ -2190,18 +3162,20 @@ int lprocfs_write_frac_u64_helper(const char *buffer, unsigned long count,
         }
 
         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;
-        }
+       if (end != NULL) {
+               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;
@@ -2235,7 +3209,7 @@ static char *lprocfs_strnstr(const char *s1, const char *s2, size_t len)
  * If \a name is not found the original \a buffer is returned.
  */
 char *lprocfs_find_named_value(const char *buffer, const char *name,
-                               unsigned long *count)
+                               size_t *count)
 {
        char *val;
        size_t buflen = *count;
@@ -2265,24 +3239,18 @@ int lprocfs_seq_create(cfs_proc_dir_entry_t *parent,
                       const struct file_operations *seq_fops,
                       void *data)
 {
-        struct proc_dir_entry *entry;
-        ENTRY;
+       struct proc_dir_entry *entry;
+       ENTRY;
 
        /* Disallow secretly (un)writable entries. */
        LASSERT((seq_fops->write == NULL) == ((mode & 0222) == 0));
 
-        LPROCFS_WRITE_ENTRY();
-        entry = create_proc_entry(name, mode, parent);
-        if (entry) {
-                entry->proc_fops = seq_fops;
-                entry->data = data;
-        }
-        LPROCFS_WRITE_EXIT();
+       entry = proc_create_data(name, mode, parent, seq_fops, data);
 
-        if (entry == NULL)
-                RETURN(-ENOMEM);
+       if (entry == NULL)
+               RETURN(-ENOMEM);
 
-        RETURN(0);
+       RETURN(0);
 }
 EXPORT_SYMBOL(lprocfs_seq_create);
 
@@ -2310,12 +3278,12 @@ EXPORT_SYMBOL(lprocfs_oh_tally);
 
 void lprocfs_oh_tally_log2(struct obd_histogram *oh, unsigned int value)
 {
-        unsigned int val;
+       unsigned int val = 0;
 
-        for (val = 0; ((1 << val) < value) && (val <= OBD_HIST_MAX); val++)
-                ;
+       if (likely(value != 0))
+               val = min(fls(value - 1), OBD_HIST_MAX);
 
-        lprocfs_oh_tally(oh, val);
+       lprocfs_oh_tally(oh, val);
 }
 EXPORT_SYMBOL(lprocfs_oh_tally_log2);
 
@@ -2338,6 +3306,181 @@ void lprocfs_oh_clear(struct obd_histogram *oh)
 }
 EXPORT_SYMBOL(lprocfs_oh_clear);
 
+#ifdef HAVE_SERVER_SUPPORT
+int lprocfs_hash_seq_show(struct seq_file *m, void *data)
+{
+       struct obd_device *obd = m->private;
+       int c = 0;
+
+       if (obd == NULL)
+               return 0;
+
+       c += cfs_hash_debug_header_seq(m);
+       c += cfs_hash_debug_str_seq(obd->obd_uuid_hash, m);
+       c += cfs_hash_debug_str_seq(obd->obd_nid_hash, m);
+       c += cfs_hash_debug_str_seq(obd->obd_nid_stats_hash, m);
+       return c;
+}
+EXPORT_SYMBOL(lprocfs_hash_seq_show);
+
+int lprocfs_recovery_status_seq_show(struct seq_file *m, void *data)
+{
+       struct obd_device *obd = m->private;
+
+       LASSERT(obd != NULL);
+
+       seq_printf(m, "status: \n");
+       if (obd->obd_max_recoverable_clients == 0) {
+               seq_printf(m, "INACTIVE\n");
+               goto out;
+       }
+
+       /* sampled unlocked, but really... */
+       if (obd->obd_recovering == 0) {
+               seq_printf(m, "COMPLETE\n");
+               seq_printf(m, "recovery_start: %lu\n", obd->obd_recovery_start);
+               seq_printf(m, "recovery_duration: %lu\n",
+                               obd->obd_recovery_end - obd->obd_recovery_start);
+               /* Number of clients that have completed recovery */
+               seq_printf(m, "completed_clients: %d/%d\n",
+                               obd->obd_max_recoverable_clients -
+                               obd->obd_stale_clients,
+                               obd->obd_max_recoverable_clients);
+               seq_printf(m, "replayed_requests: %d\n",
+                               obd->obd_replayed_requests);
+               seq_printf(m, "last_transno: "LPD64"\n",
+                               obd->obd_next_recovery_transno - 1);
+               seq_printf(m, "VBR: %s\n", obd->obd_version_recov ?
+                               "ENABLED" : "DISABLED");
+               seq_printf(m, "IR: %s\n", obd->obd_no_ir ?
+                               "DISABLED" : "ENABLED");
+               goto out;
+       }
+
+       seq_printf(m, "RECOVERING\n");
+       seq_printf(m, "recovery_start: %lu\n", obd->obd_recovery_start);
+       seq_printf(m, "time_remaining: %lu\n",
+                       cfs_time_current_sec() >=
+                       obd->obd_recovery_start +
+                       obd->obd_recovery_timeout ? 0 :
+                       obd->obd_recovery_start +
+                       obd->obd_recovery_timeout -
+                       cfs_time_current_sec());
+       seq_printf(m, "connected_clients: %d/%d\n",
+                       atomic_read(&obd->obd_connected_clients),
+                       obd->obd_max_recoverable_clients);
+       /* Number of clients that have completed recovery */
+       seq_printf(m, "req_replay_clients: %d\n",
+                       atomic_read(&obd->obd_req_replay_clients));
+       seq_printf(m, "lock_repay_clients: %d\n",
+                       atomic_read(&obd->obd_lock_replay_clients));
+       seq_printf(m, "completed_clients: %d\n",
+                       atomic_read(&obd->obd_connected_clients) -
+                       atomic_read(&obd->obd_lock_replay_clients));
+       seq_printf(m, "evicted_clients: %d\n", obd->obd_stale_clients);
+       seq_printf(m, "replayed_requests: %d\n", obd->obd_replayed_requests);
+       seq_printf(m, "queued_requests: %d\n",
+                       obd->obd_requests_queued_for_recovery);
+       seq_printf(m, "next_transno: "LPD64"\n",
+                       obd->obd_next_recovery_transno);
+out:
+       return 0;
+}
+EXPORT_SYMBOL(lprocfs_recovery_status_seq_show);
+
+int lprocfs_ir_factor_seq_show(struct seq_file *m, void *data)
+{
+       struct obd_device *obd = m->private;
+
+       LASSERT(obd != NULL);
+       return seq_printf(m, "%d\n", obd->obd_recovery_ir_factor);
+}
+EXPORT_SYMBOL(lprocfs_ir_factor_seq_show);
+
+ssize_t
+lprocfs_ir_factor_seq_write(struct file *file, const char *buffer,
+                               size_t count, loff_t *off)
+{
+       struct obd_device *obd = ((struct seq_file *)file->private_data)->private;
+       int val, rc;
+
+       LASSERT(obd != NULL);
+       rc = lprocfs_write_helper(buffer, count, &val);
+       if (rc)
+               return rc;
+
+       if (val < OBD_IR_FACTOR_MIN || val > OBD_IR_FACTOR_MAX)
+               return -EINVAL;
+
+       obd->obd_recovery_ir_factor = val;
+       return count;
+}
+EXPORT_SYMBOL(lprocfs_ir_factor_seq_write);
+
+int lprocfs_recovery_time_soft_seq_show(struct seq_file *m, void *data)
+{
+       struct obd_device *obd = m->private;
+
+       LASSERT(obd != NULL);
+       return seq_printf(m, "%d\n", obd->obd_recovery_timeout);
+}
+EXPORT_SYMBOL(lprocfs_recovery_time_soft_seq_show);
+
+ssize_t
+lprocfs_recovery_time_soft_seq_write(struct file *file, const char *buffer,
+                                       size_t count, loff_t *off)
+{
+       struct obd_device *obd = ((struct seq_file *)file->private_data)->private;
+       int val, rc;
+
+       LASSERT(obd != NULL);
+       rc = lprocfs_write_helper(buffer, count, &val);
+       if (rc)
+               return rc;
+
+       obd->obd_recovery_timeout = val;
+       return count;
+}
+EXPORT_SYMBOL(lprocfs_recovery_time_soft_seq_write);
+
+int lprocfs_recovery_time_hard_seq_show(struct seq_file *m, void *data)
+{
+       struct obd_device *obd = m->private;
+
+       LASSERT(obd != NULL);
+       return seq_printf(m, "%u\n", obd->obd_recovery_time_hard);
+}
+EXPORT_SYMBOL(lprocfs_recovery_time_hard_seq_show);
+
+ssize_t
+lprocfs_recovery_time_hard_seq_write(struct file *file, const char *buffer,
+                                       size_t count, loff_t *off)
+{
+       struct obd_device *obd = ((struct seq_file *)file->private_data)->private;
+       int val, rc;
+
+       LASSERT(obd != NULL);
+       rc = lprocfs_write_helper(buffer, count, &val);
+       if (rc)
+               return rc;
+
+       obd->obd_recovery_time_hard = val;
+       return count;
+}
+EXPORT_SYMBOL(lprocfs_recovery_time_hard_seq_write);
+
+int lprocfs_target_instance_seq_show(struct seq_file *m, void *data)
+{
+       struct obd_device *obd = m->private;
+       struct obd_device_target *target = &obd->u.obt;
+
+       LASSERT(obd != NULL);
+       LASSERT(target->obt_magic == OBT_MAGIC);
+       return seq_printf(m, "%u\n", obd->u.obt.obt_instance);
+}
+EXPORT_SYMBOL(lprocfs_target_instance_seq_show);
+
+#ifndef HAVE_ONLY_PROCFS_SEQ
 int lprocfs_obd_rd_hash(char *page, char **start, off_t off,
                         int count, int *eof, void *data)
 {
@@ -2444,21 +3587,21 @@ int lprocfs_obd_rd_recovery_status(char *page, char **start, off_t off,
                                  cfs_time_current_sec()) <= 0)
                 goto out;
         if (lprocfs_obd_snprintf(&page, size, &len,"connected_clients: %d/%d\n",
-                                 cfs_atomic_read(&obd->obd_connected_clients),
+                                atomic_read(&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,"req_replay_clients: %d\n",
-                                 cfs_atomic_read(&obd->obd_req_replay_clients))
+                                atomic_read(&obd->obd_req_replay_clients))
                 <= 0)
                 goto out;
         if (lprocfs_obd_snprintf(&page, size, &len,"lock_repay_clients: %d\n",
-                                 cfs_atomic_read(&obd->obd_lock_replay_clients))
+                                atomic_read(&obd->obd_lock_replay_clients))
                 <=0)
                 goto out;
         if (lprocfs_obd_snprintf(&page, size, &len,"completed_clients: %d\n",
-                                 cfs_atomic_read(&obd->obd_connected_clients) -
-                                 cfs_atomic_read(&obd->obd_lock_replay_clients))
+                                atomic_read(&obd->obd_connected_clients) -
+                                atomic_read(&obd->obd_lock_replay_clients))
                 <=0)
                 goto out;
         if (lprocfs_obd_snprintf(&page, size, &len,"evicted_clients: %d\n",
@@ -2565,6 +3708,21 @@ int lprocfs_obd_wr_recovery_time_hard(struct file *file, const char *buffer,
 }
 EXPORT_SYMBOL(lprocfs_obd_wr_recovery_time_hard);
 
+int lprocfs_target_rd_instance(char *page, char **start, off_t off,
+                              int count, int *eof, void *data)
+{
+       struct obd_device *obd = (struct obd_device *)data;
+       struct obd_device_target *target = &obd->u.obt;
+
+       LASSERT(obd != NULL);
+       LASSERT(target->obt_magic == OBT_MAGIC);
+       *eof = 1;
+       return snprintf(page, count, "%u\n", obd->u.obt.obt_instance);
+}
+EXPORT_SYMBOL(lprocfs_target_rd_instance);
+#endif /* HAVE_ONLY_PROCFS_SEQ */
+#endif /* HAVE_SERVER_SUPPORT */
+
 int lprocfs_obd_rd_max_pages_per_rpc(char *page, char **start, off_t off,
                                      int count, int *eof, void *data)
 {
@@ -2579,18 +3737,16 @@ int lprocfs_obd_rd_max_pages_per_rpc(char *page, char **start, off_t off,
 }
 EXPORT_SYMBOL(lprocfs_obd_rd_max_pages_per_rpc);
 
-#ifdef HAVE_SERVER_SUPPORT
-int lprocfs_target_rd_instance(char *page, char **start, off_t off,
-                               int count, int *eof, void *data)
+int lprocfs_obd_max_pages_per_rpc_seq_show(struct seq_file *m, void *data)
 {
-        struct obd_device *obd = (struct obd_device *)data;
-        struct obd_device_target *target = &obd->u.obt;
+       struct obd_device *dev = data;
+       struct client_obd *cli = &dev->u.cli;
+       int rc;
 
-        LASSERT(obd != NULL);
-        LASSERT(target->obt_magic == OBT_MAGIC);
-        *eof = 1;
-        return snprintf(page, count, "%u\n", obd->u.obt.obt_instance);
+       client_obd_list_lock(&cli->cl_loi_list_lock);
+       rc = seq_printf(m, "%d\n", cli->cl_max_pages_per_rpc);
+       client_obd_list_unlock(&cli->cl_loi_list_lock);
+       return rc;
 }
-EXPORT_SYMBOL(lprocfs_target_rd_instance);
-#endif
+EXPORT_SYMBOL(lprocfs_obd_max_pages_per_rpc_seq_show);
 #endif /* LPROCFS*/