/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
*
- * Copyright (C) 2002 Cluster File Systems, Inc.
+ * Copyright (C) 2002, 2003 Cluster File Systems, Inc.
+ * Author: Hariharan Thantry <thantry@users.sourceforge.net>
*
- * This file is part of Lustre, http://www.lustre.org.
+ * This file is part of the Lustre file system, http://www.lustre.org
+ * Lustre is a trademark of Cluster File Systems, Inc.
*
- * Lustre is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
+ * You may have signed or agreed to another license before downloading
+ * this software. If so, you are bound by the terms and conditions
+ * of that agreement, and the following does not apply to you. See the
+ * LICENSE file included with this distribution for more information.
*
- * Lustre is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * If you did not agree to a different license, then this copy of Lustre
+ * is open source software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
*
+ * In either case, Lustre is distributed in the hope that it will be
+ * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * license text for more details.
*/
-#define EXPORT_SYMTAB
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/version.h>
-#include <linux/proc_fs.h>
-#include <linux/slab.h>
-#include <linux/types.h>
-
+#ifndef EXPORT_SYMTAB
+# define EXPORT_SYMTAB
+#endif
#define DEBUG_SUBSYSTEM S_CLASS
-#define MAX_STRING_SIZE 100
-#include <linux/lustre_lite.h>
-#include <linux/lprocfs_status.h>
+#ifndef __KERNEL__
+# include <liblustre.h>
+#endif
-#ifdef LPROC_SNMP
+#include <obd_class.h>
+#include <lprocfs_status.h>
+#include <lustre_fsfilt.h>
-#define DEFAULT_MODE 0444
-/*
- * Tokenizer array. Change this array to include special
- * characters for string tokenizing
- */
-const char tok[] = {'/', '\0'};
+#if defined(LPROCFS)
-/*
- * Externs
- */
-extern struct proc_dir_entry proc_root; /* Defined in proc/root.c */
+#define MAX_STRING_SIZE 128
-/*
- * Globals
- */
-struct proc_dir_entry *proc_lustre_root;
-struct proc_dir_entry *proc_lustre_dev_root;
-struct proc_dir_entry *proc_lustre_fs_root;
+/* for bug 10866, global variable */
+DECLARE_RWSEM(_lprocfs_lock);
+EXPORT_SYMBOL(_lprocfs_lock);
-struct proc_dir_entry* lprocfs_mkdir(const char* dname,
- struct proc_dir_entry *parent)
+int lprocfs_seq_release(struct inode *inode, struct file *file)
{
- struct proc_dir_entry *child_dir_entry;
-
- child_dir_entry = proc_mkdir(dname, parent);
-
- if (!child_dir_entry)
- CERROR("lustre: failed to create /proc entry %s\n", dname);
-
- return child_dir_entry;
+ LPROCFS_EXIT();
+ return seq_release(inode, file);
}
+EXPORT_SYMBOL(lprocfs_seq_release);
-struct proc_dir_entry* lprocfs_srch(struct proc_dir_entry* head,
- const char* name)
+struct proc_dir_entry *lprocfs_srch(struct proc_dir_entry *head,
+ const char *name)
{
- struct proc_dir_entry* temp;
+ struct proc_dir_entry *temp;
- if (!head)
+ if (head == NULL)
return NULL;
temp = head->subdir;
while (temp != NULL) {
- if (!strcmp(temp->name, name))
+ if (strcmp(temp->name, name) == 0)
return temp;
+
temp = temp->next;
}
-
return NULL;
}
-void lprocfs_remove_all(struct proc_dir_entry* root)
+/* lprocfs API calls */
+
+/* Function that emulates snprintf but also has the side effect of advancing
+ the page pointer for the next write into the buffer, incrementing the total
+ length written to the buffer, and decrementing the size left in the
+ buffer. */
+static int lprocfs_obd_snprintf(char **page, int end, int *len,
+ const char *format, ...)
+{
+ va_list list;
+ int n;
+
+ if (*len >= end)
+ return 0;
+
+ va_start(list, format);
+ n = vsnprintf(*page, end - *len, format, list);
+ va_end(list);
+
+ *page += n; *len += n;
+ return n;
+}
+
+int lprocfs_add_simple(struct proc_dir_entry *root, char *name,
+ read_proc_t *read_proc, write_proc_t *write_proc,
+ void *data)
+{
+ struct proc_dir_entry *proc;
+ mode_t mode = 0;
+
+ if (root == NULL || name == NULL)
+ return -EINVAL;
+ if (read_proc)
+ mode = 0444;
+ if (write_proc)
+ mode |= 0200;
+ proc = create_proc_entry(name, mode, root);
+ if (!proc) {
+ CERROR("LprocFS: No memory to create /proc entry %s", name);
+ return -ENOMEM;
+ }
+ proc->read_proc = read_proc;
+ proc->write_proc = write_proc;
+ proc->data = data;
+ return 0;
+}
+
+static ssize_t lprocfs_fops_read(struct file *f, char __user *buf,
+ size_t size, loff_t *ppos)
+{
+ struct proc_dir_entry *dp = PDE(f->f_dentry->d_inode);
+ char *page, *start = NULL;
+ int rc = 0, eof = 1, count;
+
+ if (*ppos >= CFS_PAGE_SIZE)
+ return 0;
+
+ page = (char *)__get_free_page(GFP_KERNEL);
+ if (page == NULL)
+ return -ENOMEM;
+
+ LPROCFS_ENTRY();
+ OBD_FAIL_TIMEOUT(OBD_FAIL_LPROC_REMOVE, 10);
+ if (!dp->deleted && dp->read_proc)
+ rc = dp->read_proc(page, &start, *ppos, CFS_PAGE_SIZE,
+ &eof, dp->data);
+ LPROCFS_EXIT();
+ if (rc <= 0)
+ goto out;
+
+ /* for lustre proc read, the read count must be less than PAGE_SIZE */
+ LASSERT(eof == 1);
+
+ if (start == NULL) {
+ rc -= *ppos;
+ if (rc < 0)
+ rc = 0;
+ if (rc == 0)
+ goto out;
+ start = page + *ppos;
+ } else if (start < page) {
+ start = page;
+ }
+
+ count = (rc < size) ? rc : size;
+ if (copy_to_user(buf, start, count)) {
+ rc = -EFAULT;
+ goto out;
+ }
+ *ppos += count;
+
+out:
+ free_page((unsigned long)page);
+ return rc;
+}
+
+static ssize_t lprocfs_fops_write(struct file *f, const char __user *buf, size_t size, loff_t *ppos)
+{
+ struct proc_dir_entry *dp = PDE(f->f_dentry->d_inode);
+ int rc = 0;
+
+ LPROCFS_ENTRY();
+ if (!dp->deleted && dp->write_proc)
+ rc = dp->write_proc(f, buf, size, dp->data);
+ LPROCFS_EXIT();
+ return rc;
+}
+
+static struct file_operations lprocfs_generic_fops = {
+ .owner = THIS_MODULE,
+ .read = lprocfs_fops_read,
+ .write = lprocfs_fops_write,
+};
+
+int lprocfs_evict_client_open(struct inode *inode, struct file *f)
+{
+ struct proc_dir_entry *dp = PDE(f->f_dentry->d_inode);
+ struct obd_device *obd = dp->data;
+
+ atomic_inc(&obd->obd_evict_inprogress);
+
+ return 0;
+}
+
+int lprocfs_evict_client_release(struct inode *inode, struct file *f)
+{
+ struct proc_dir_entry *dp = PDE(f->f_dentry->d_inode);
+ struct obd_device *obd = dp->data;
+
+ atomic_dec(&obd->obd_evict_inprogress);
+ wake_up(&obd->obd_evict_inprogress_waitq);
+
+ return 0;
+}
+
+struct file_operations lprocfs_evict_client_fops = {
+ .owner = THIS_MODULE,
+ .read = lprocfs_fops_read,
+ .write = lprocfs_fops_write,
+ .open = lprocfs_evict_client_open,
+ .release = lprocfs_evict_client_release,
+};
+EXPORT_SYMBOL(lprocfs_evict_client_fops);
+
+int lprocfs_add_vars(struct proc_dir_entry *root, struct lprocfs_vars *list,
+ void *data)
{
+ if (root == NULL || list == NULL)
+ return -EINVAL;
+
+ while (list->name != NULL) {
+ struct proc_dir_entry *cur_root, *proc;
+ char *pathcopy, *cur, *next, pathbuf[64];
+ int pathsize = strlen(list->name) + 1;
+
+ proc = NULL;
+ cur_root = root;
+
+ /* need copy of path for strsep */
+ if (strlen(list->name) > sizeof(pathbuf) - 1) {
+ OBD_ALLOC(pathcopy, pathsize);
+ if (pathcopy == NULL)
+ return -ENOMEM;
+ } else {
+ pathcopy = pathbuf;
+ }
+
+ next = pathcopy;
+ strcpy(pathcopy, list->name);
+
+ while (cur_root != NULL && (cur = strsep(&next, "/"))) {
+ if (*cur =='\0') /* skip double/trailing "/" */
+ continue;
+
+ proc = lprocfs_srch(cur_root, cur);
+ CDEBUG(D_OTHER, "cur_root=%s, cur=%s, next=%s, (%s)\n",
+ cur_root->name, cur, next,
+ (proc ? "exists" : "new"));
+ if (next != NULL) {
+ cur_root = (proc ? proc :
+ proc_mkdir(cur, cur_root));
+ } else if (proc == NULL) {
+ mode_t mode = 0;
+ if (list->read_fptr)
+ mode = 0444;
+ if (list->write_fptr)
+ mode |= 0200;
+ proc = create_proc_entry(cur, mode, cur_root);
+ }
+ }
+
+ if (pathcopy != pathbuf)
+ OBD_FREE(pathcopy, pathsize);
+
+ if (cur_root == NULL || proc == NULL) {
+ CERROR("LprocFS: No memory to create /proc entry %s",
+ list->name);
+ return -ENOMEM;
+ }
+
+ if (list->fops)
+ proc->proc_fops = list->fops;
+ else
+ proc->proc_fops = &lprocfs_generic_fops;
+ proc->read_proc = list->read_fptr;
+ proc->write_proc = list->write_fptr;
+ proc->data = (list->data ? list->data : data);
+ list++;
+ }
+ return 0;
+}
+
+void lprocfs_remove(struct proc_dir_entry **rooth)
+{
+ struct proc_dir_entry *root = *rooth;
struct proc_dir_entry *temp = root;
struct proc_dir_entry *rm_entry;
- struct proc_dir_entry *parent = root->parent;
+ struct proc_dir_entry *parent;
+
+ if (!root)
+ return;
+ *rooth = NULL;
+ parent = root->parent;
+ LASSERT(parent != NULL);
+
while (1) {
- while (temp->subdir)
+ while (temp->subdir != NULL)
temp = temp->subdir;
rm_entry = temp;
temp = temp->parent;
+
+ /* Memory corruption once caused this to fail, and
+ without this LASSERT we would loop here forever. */
+ LASSERTF(strlen(rm_entry->name) == rm_entry->namelen,
+ "0x%p %s/%s len %d\n", rm_entry, temp->name,
+ rm_entry->name, (int)strlen(rm_entry->name));
+
+ /* Now, the rm_entry->deleted flags is protected
+ * by _lprocfs_lock. */
+ down_write(&_lprocfs_lock);
+ rm_entry->data = NULL;
remove_proc_entry(rm_entry->name, rm_entry->parent);
- if (temp == parent) break;
- }
-}
-
-struct proc_dir_entry* lprocfs_new_dir(struct proc_dir_entry* root,
- const char* string, const char* tok)
-{
- struct proc_dir_entry* new_root = 0;
- struct proc_dir_entry* temp_entry = 0;
- char temp_string[MAX_STRING_SIZE];
- char* my_str;
- char* mover_str;
-
- strncpy(temp_string, string, MAX_STRING_SIZE-1);
- temp_string[strlen(string) + 1] = '\0';
-
- new_root = root;
- mover_str = temp_string;
- while ((my_str = strsep(&mover_str, tok))) {
- if(!*my_str)
- continue;
- CDEBUG(D_OTHER, "SEARCH= %s\t, ROOT=%s\n", my_str,
- new_root->name);
- temp_entry = lprocfs_srch(new_root, my_str);
- if (temp_entry == 0) {
- CDEBUG(D_OTHER, "Adding: %s\n", my_str);
- temp_entry = lprocfs_mkdir(my_str, new_root);
- if (temp_entry == 0) {
- CDEBUG(D_OTHER,
- "! Did not create new dir %s !!\n",
- my_str);
- return 0;
- }
+ up_write(&_lprocfs_lock);
+ if (temp == parent)
+ break;
+ }
+}
+
+struct proc_dir_entry *lprocfs_register(const char *name,
+ struct proc_dir_entry *parent,
+ struct lprocfs_vars *list, void *data)
+{
+ struct proc_dir_entry *newchild;
+
+ newchild = lprocfs_srch(parent, name);
+ if (newchild != NULL) {
+ CERROR(" Lproc: Attempting to register %s more than once \n",
+ name);
+ return 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);
}
- new_root = temp_entry;
}
+ return newchild;
+}
- return new_root;
+/* Generic callbacks */
+int lprocfs_rd_uint(char *page, char **start, off_t off,
+ int count, int *eof, void *data)
+{
+ unsigned int *temp = (unsigned int *)data;
+ return snprintf(page, count, "%u\n", *temp);
}
-int lprocfs_new_vars(struct proc_dir_entry* root, struct lprocfs_vars* list,
- const char* tok, void* data)
+int lprocfs_wr_uint(struct file *file, const char *buffer,
+ unsigned long count, void *data)
{
- struct proc_dir_entry *temp_root;
- struct proc_dir_entry *new_leaf;
- struct proc_dir_entry *new_parent;
- char temp_string[MAX_STRING_SIZE];
+ unsigned *p = data;
+ char dummy[MAX_STRING_SIZE + 1], *end;
+ unsigned long tmp;
- if (!list)
- return 0;
+ dummy[MAX_STRING_SIZE] = '\0';
+ if (copy_from_user(dummy, buffer, MAX_STRING_SIZE))
+ return -EFAULT;
- while (list->name) {
- temp_root = lprocfs_new_dir(root, list->name, tok);
+ tmp = simple_strtoul(dummy, &end, 0);
+ if (dummy == end)
+ return -EINVAL;
- if (!temp_root) {
- CDEBUG(D_OTHER, "!LProcFS: Mods: No root!");
- return -EINVAL;
- }
+ *p = (unsigned int)tmp;
+ return count;
+}
- /* Convert the last element into a leaf-node */
- strncpy(temp_string, temp_root->name, MAX_STRING_SIZE-1);
- temp_string[strlen(temp_root->name) + 1] = '\0';
- new_parent = temp_root->parent;
- remove_proc_entry(temp_root->name, new_parent);
-
- new_leaf = create_proc_entry(temp_string, DEFAULT_MODE,
- new_parent);
- new_leaf->read_proc = list->read_fptr;
- new_leaf->write_proc = list->write_fptr;
- new_leaf->data = data;
- list++;
+int lprocfs_rd_u64(char *page, char **start, off_t off,
+ int count, int *eof, void *data)
+{
+ LASSERT(data != NULL);
+ *eof = 1;
+ return snprintf(page, count, LPU64"\n", *(__u64 *)data);
+}
+
+int lprocfs_rd_atomic(char *page, char **start, off_t off,
+ int count, int *eof, void *data)
+{
+ atomic_t *atom = (atomic_t *)data;
+ LASSERT(atom != NULL);
+ *eof = 1;
+ return snprintf(page, count, "%d\n", atomic_read(atom));
+}
+
+int lprocfs_wr_atomic(struct file *file, const char *buffer,
+ unsigned long count, void *data)
+{
+ atomic_t *atm = data;
+ int val = 0;
+ int rc;
+
+ rc = lprocfs_write_helper(buffer, count, &val);
+ if (rc < 0)
+ return rc;
+
+ if (val <= 0)
+ return -ERANGE;
+
+ atomic_set(atm, val);
+ return count;
+}
+
+int lprocfs_rd_uuid(char *page, char **start, off_t off, int count,
+ int *eof, void *data)
+{
+ struct obd_device *obd = (struct obd_device*)data;
+
+ LASSERT(obd != NULL);
+ *eof = 1;
+ return snprintf(page, count, "%s\n", obd->obd_uuid.uuid);
+}
+
+int lprocfs_rd_name(char *page, char **start, off_t off, int count,
+ int *eof, void* data)
+{
+ struct obd_device *dev = (struct obd_device *)data;
+
+ LASSERT(dev != NULL);
+ LASSERT(dev->obd_name != NULL);
+ *eof = 1;
+ return snprintf(page, count, "%s\n", dev->obd_name);
+}
+
+int lprocfs_rd_fstype(char *page, char **start, off_t off, int count, int *eof,
+ void *data)
+{
+ struct obd_device *obd = (struct obd_device *)data;
+
+ LASSERT(obd != NULL);
+ LASSERT(obd->obd_fsops != NULL);
+ LASSERT(obd->obd_fsops->fs_type != NULL);
+ return snprintf(page, count, "%s\n", obd->obd_fsops->fs_type);
+}
+
+int lprocfs_rd_blksize(char *page, char **start, off_t off, int count,
+ int *eof, void *data)
+{
+ struct obd_statfs osfs;
+ int rc = obd_statfs(data, &osfs, cfs_time_current_64() - HZ);
+ if (!rc) {
+ *eof = 1;
+ rc = snprintf(page, count, "%u\n", osfs.os_bsize);
}
- return 0;
+ return rc;
}
-/*
- * API implementations
- */
-int lprocfs_add_vars(struct proc_dir_entry *root, struct lprocfs_vars *var,
- void *data)
+int lprocfs_rd_kbytestotal(char *page, char **start, off_t off, int count,
+ int *eof, void *data)
{
- return lprocfs_new_vars(root, var, (const char*) tok, data);
+ struct obd_statfs osfs;
+ int rc = obd_statfs(data, &osfs, cfs_time_current_64() - HZ);
+ if (!rc) {
+ __u32 blk_size = osfs.os_bsize >> 10;
+ __u64 result = osfs.os_blocks;
+
+ while (blk_size >>= 1)
+ result <<= 1;
+
+ *eof = 1;
+ rc = snprintf(page, count, LPU64"\n", result);
+ }
+ return rc;
}
-int lprocfs_reg_obd(struct obd_device *device, struct lprocfs_vars *list,
- void *data)
+int lprocfs_rd_kbytesfree(char *page, char **start, off_t off, int count,
+ int *eof, void *data)
{
- int retval = 0;
- struct proc_dir_entry* this_dev_root = 0;
+ struct obd_statfs osfs;
+ int rc = obd_statfs(data, &osfs, cfs_time_current_64() - HZ);
+ if (!rc) {
+ __u32 blk_size = osfs.os_bsize >> 10;
+ __u64 result = osfs.os_bfree;
+
+ while (blk_size >>= 1)
+ result <<= 1;
- /* Obtain this device root */
- this_dev_root = lprocfs_mkdir(device->obd_name,
- device->obd_type->typ_procroot);
+ *eof = 1;
+ rc = snprintf(page, count, LPU64"\n", result);
+ }
+ return rc;
+}
+
+int lprocfs_rd_kbytesavail(char *page, char **start, off_t off, int count,
+ int *eof, void *data)
+{
+ struct obd_statfs osfs;
+ int rc = obd_statfs(data, &osfs, cfs_time_current_64() - HZ);
+ if (!rc) {
+ __u32 blk_size = osfs.os_bsize >> 10;
+ __u64 result = osfs.os_bavail;
- device->obd_proc_entry = this_dev_root;
- retval = lprocfs_add_vars(this_dev_root, list, data);
+ while (blk_size >>= 1)
+ result <<= 1;
- return retval;
+ *eof = 1;
+ rc = snprintf(page, count, LPU64"\n", result);
+ }
+ return rc;
}
-int lprocfs_dereg_obd(struct obd_device* device)
+int lprocfs_rd_filestotal(char *page, char **start, off_t off, int count,
+ int *eof, void *data)
{
- CDEBUG(D_OTHER, "LPROCFS removing device = %s\n", device->obd_name);
+ struct obd_statfs osfs;
+ int rc = obd_statfs(data, &osfs, cfs_time_current_64() - HZ);
+ if (!rc) {
+ *eof = 1;
+ rc = snprintf(page, count, LPU64"\n", osfs.os_files);
+ }
- if (!device) {
- CDEBUG(D_OTHER, "! LProcfs: Null pointer !\n");
- return 0;
+ return rc;
+}
+
+int lprocfs_rd_filesfree(char *page, char **start, off_t off, int count,
+ int *eof, void *data)
+{
+ struct obd_statfs osfs;
+ int rc = obd_statfs(data, &osfs, cfs_time_current_64() - HZ);
+ if (!rc) {
+ *eof = 1;
+ rc = snprintf(page, count, LPU64"\n", osfs.os_ffree);
+ }
+ return rc;
+}
+
+int lprocfs_rd_server_uuid(char *page, char **start, off_t off, int count,
+ int *eof, void *data)
+{
+ struct obd_device *obd = (struct obd_device *)data;
+ struct obd_import *imp;
+ char *imp_state_name = NULL;
+ int rc = 0;
+
+ LASSERT(obd != NULL);
+ LPROCFS_CLIMP_CHECK(obd);
+ imp = obd->u.cli.cl_import;
+ imp_state_name = ptlrpc_import_state_name(imp->imp_state);
+ *eof = 1;
+ rc = snprintf(page, count, "%s\t%s%s\n",
+ obd2cli_tgt(obd), imp_state_name,
+ imp->imp_deactive ? "\tDEACTIVATED" : "");
+
+ LPROCFS_CLIMP_EXIT(obd);
+ return rc;
+}
+
+int lprocfs_rd_conn_uuid(char *page, char **start, off_t off, int count,
+ int *eof, void *data)
+{
+ struct obd_device *obd = (struct obd_device*)data;
+ struct ptlrpc_connection *conn;
+ int rc = 0;
+
+ LASSERT(obd != NULL);
+
+ LPROCFS_CLIMP_CHECK(obd);
+ conn = obd->u.cli.cl_import->imp_connection;
+ LASSERT(conn != NULL);
+ *eof = 1;
+ if (obd->u.cli.cl_import) {
+ rc = snprintf(page, count, "%s\n",
+ conn->c_remote_uuid.uuid);
+ } else {
+ rc = snprintf(page, count, "%s\n", "<none>");
}
- lprocfs_remove_all(device->obd_proc_entry);
+ LPROCFS_CLIMP_EXIT(obd);
+ return rc;
+}
+
+static const char *obd_connect_names[] = {
+ "read_only",
+ "lov_index",
+ "unused",
+ "write_grant",
+ "server_lock",
+ "version",
+ "request_portal",
+ "acl",
+ "xattr",
+ "create_on_write",
+ "truncate_lock",
+ "initial_transno",
+ "inode_bit_locks",
+ "join_file",
+ "getattr_by_fid",
+ "no_oh_for_devices",
+ "local_client",
+ "remote_client",
+ "max_byte_per_rpc",
+ "64bit_qdata",
+ "mds_capability",
+ "oss_capability",
+ "early_lock_cancel",
+ "size_on_mds",
+ "adaptive_timeouts",
+ "lru_resize",
+ "mds_mds_connection",
+ "real_conn",
+ "change_qunit_size",
+ "alt_checksum_algorithm",
+ NULL
+};
- if (device->counters)
- OBD_FREE(device->counters, device->cntr_mem_size);
+int lprocfs_rd_connect_flags(char *page, char **start, off_t off,
+ int count, int *eof, void *data)
+{
+ struct obd_device *obd = data;
+ __u64 mask = 1, flags;
+ int i, ret = 0;
+
+ LPROCFS_CLIMP_CHECK(obd);
+ flags = obd->u.cli.cl_import->imp_connect_data.ocd_connect_flags;
+ ret = snprintf(page, count, "flags="LPX64"\n", flags);
+ for (i = 0; obd_connect_names[i] != NULL; i++, mask <<= 1) {
+ if (flags & mask)
+ ret += snprintf(page + ret, count - ret, "%s\n",
+ obd_connect_names[i]);
+ }
+ if (flags & ~(mask - 1))
+ ret += snprintf(page + ret, count - ret,
+ "unknown flags "LPX64"\n", flags & ~(mask - 1));
+
+ LPROCFS_CLIMP_EXIT(obd);
+ return ret;
+}
+EXPORT_SYMBOL(lprocfs_rd_connect_flags);
+
+int lprocfs_rd_num_exports(char *page, char **start, off_t off, int count,
+ int *eof, void *data)
+{
+ struct obd_device *obd = (struct obd_device*)data;
+
+ LASSERT(obd != NULL);
+ *eof = 1;
+ return snprintf(page, count, "%u\n", obd->obd_num_exports);
+}
+
+int lprocfs_rd_numrefs(char *page, char **start, off_t off, int count,
+ int *eof, void *data)
+{
+ struct obd_type *class = (struct obd_type*) data;
+ LASSERT(class != NULL);
+ *eof = 1;
+ return snprintf(page, count, "%d\n", class->typ_refcnt);
+}
+
+int lprocfs_obd_setup(struct obd_device *obd, struct lprocfs_vars *list)
+{
+ 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;
+}
+
+int lprocfs_obd_cleanup(struct obd_device *obd)
+{
+ if (!obd)
+ return -EINVAL;
+ if (obd->obd_proc_exports) {
+ /* Should be no exports left */
+ LASSERT(obd->obd_proc_exports->subdir == NULL);
+ lprocfs_remove(&obd->obd_proc_exports);
+ }
+ lprocfs_remove(&obd->obd_proc_entry);
return 0;
}
-struct proc_dir_entry* lprocfs_reg_mnt(char* mnt_name)
+struct lprocfs_stats *lprocfs_alloc_stats(unsigned int num,
+ enum lprocfs_stats_flags flags)
+{
+ struct lprocfs_stats *stats;
+ struct lprocfs_percpu *percpu;
+ unsigned int percpusize;
+ unsigned int i;
+ unsigned int num_cpu;
+
+ if (num == 0)
+ return NULL;
+
+ if (flags & LPROCFS_STATS_FLAG_NOPERCPU)
+ num_cpu = 1;
+ else
+ num_cpu = num_possible_cpus();
+
+ OBD_ALLOC(stats, offsetof(typeof(*stats), ls_percpu[num_cpu]));
+ if (stats == NULL)
+ return NULL;
+
+ if (flags & LPROCFS_STATS_FLAG_NOPERCPU) {
+ stats->ls_flags = flags;
+ spin_lock_init(&stats->ls_lock);
+ /* Use this lock only if there are no percpu areas */
+ } else {
+ stats->ls_flags = 0;
+ }
+
+ percpusize = offsetof(typeof(*percpu), lp_cntr[num]);
+ if (num_cpu > 1)
+ percpusize = L1_CACHE_ALIGN(percpusize);
+
+ stats->ls_percpu_size = num_cpu * percpusize;
+ OBD_ALLOC(stats->ls_percpu[0], stats->ls_percpu_size);
+ if (stats->ls_percpu[0] == NULL) {
+ OBD_FREE(stats, offsetof(typeof(*stats),
+ ls_percpu[num_cpu]));
+ return NULL;
+ }
+
+ stats->ls_num = num;
+ for (i = 1; i < num_cpu; i++)
+ stats->ls_percpu[i] = (void *)(stats->ls_percpu[i - 1]) +
+ percpusize;
+
+ return stats;
+}
+
+void lprocfs_free_stats(struct lprocfs_stats **statsh)
+{
+ struct lprocfs_stats *stats = *statsh;
+ unsigned int num_cpu;
+
+ if (stats == NULL || stats->ls_num == 0)
+ return;
+ *statsh = NULL;
+
+ if (stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU)
+ num_cpu = 1;
+ else
+ num_cpu = num_possible_cpus();
+
+ OBD_FREE(stats->ls_percpu[0], stats->ls_percpu_size);
+ OBD_FREE(stats, offsetof(typeof(*stats), ls_percpu[num_cpu]));
+}
+
+void lprocfs_clear_stats(struct lprocfs_stats *stats)
{
- return lprocfs_mkdir(mnt_name, proc_lustre_fs_root);
+ struct lprocfs_counter *percpu_cntr;
+ int i,j;
+ unsigned int num_cpu;
+
+ num_cpu = lprocfs_stats_lock(stats, LPROCFS_GET_NUM_CPU);
+
+ for (i = 0; i < num_cpu; i++) {
+ for (j = 0; j < stats->ls_num; j++) {
+ percpu_cntr = &(stats->ls_percpu[i])->lp_cntr[j];
+ atomic_inc(&percpu_cntr->lc_cntl.la_entry);
+ percpu_cntr->lc_count = 0;
+ percpu_cntr->lc_sum = 0;
+ percpu_cntr->lc_min = ~(__u64)0;
+ percpu_cntr->lc_max = 0;
+ percpu_cntr->lc_sumsquare = 0;
+ atomic_inc(&percpu_cntr->lc_cntl.la_exit);
+ }
+ }
+
+ lprocfs_stats_unlock(stats);
+}
+
+static ssize_t lprocfs_stats_seq_write(struct file *file, const char *buf,
+ size_t len, loff_t *off)
+{
+ struct seq_file *seq = file->private_data;
+ struct lprocfs_stats *stats = seq->private;
+
+ lprocfs_clear_stats(stats);
+
+ return len;
+}
+
+static void *lprocfs_stats_seq_start(struct seq_file *p, loff_t *pos)
+{
+ struct lprocfs_stats *stats = p->private;
+ /* return 1st cpu location */
+ return (*pos >= stats->ls_num) ? NULL :
+ &(stats->ls_percpu[0]->lp_cntr[*pos]);
+}
+
+static void lprocfs_stats_seq_stop(struct seq_file *p, void *v)
+{
+}
+
+static void *lprocfs_stats_seq_next(struct seq_file *p, void *v, loff_t *pos)
+{
+ struct lprocfs_stats *stats = p->private;
+ ++*pos;
+ return (*pos >= stats->ls_num) ? NULL :
+ &(stats->ls_percpu[0]->lp_cntr[*pos]);
+}
+
+/* seq file export of one lprocfs counter */
+static int lprocfs_stats_seq_show(struct seq_file *p, void *v)
+{
+ struct lprocfs_stats *stats = p->private;
+ struct lprocfs_counter *cntr = v;
+ struct lprocfs_counter t, ret = { .lc_min = ~(__u64)0 };
+ int i, idx, rc;
+ unsigned int num_cpu;
+
+ if (cntr == &(stats->ls_percpu[0])->lp_cntr[0]) {
+ struct timeval 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)
+ return rc;
+ }
+ idx = cntr - &(stats->ls_percpu[0])->lp_cntr[0];
+
+ if (stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU)
+ num_cpu = 1;
+ else
+ num_cpu = num_possible_cpus();
+
+ for (i = 0; i < num_cpu; i++) {
+ struct lprocfs_counter *percpu_cntr =
+ &(stats->ls_percpu[i])->lp_cntr[idx];
+ int centry;
+
+ do {
+ centry = atomic_read(&percpu_cntr->lc_cntl.la_entry);
+ t.lc_count = percpu_cntr->lc_count;
+ t.lc_sum = percpu_cntr->lc_sum;
+ t.lc_min = percpu_cntr->lc_min;
+ t.lc_max = percpu_cntr->lc_max;
+ t.lc_sumsquare = percpu_cntr->lc_sumsquare;
+ } while (centry != atomic_read(&percpu_cntr->lc_cntl.la_entry) &&
+ centry != atomic_read(&percpu_cntr->lc_cntl.la_exit));
+ ret.lc_count += t.lc_count;
+ ret.lc_sum += t.lc_sum;
+ if (t.lc_min < ret.lc_min)
+ ret.lc_min = t.lc_min;
+ if (t.lc_max > ret.lc_max)
+ ret.lc_max = t.lc_max;
+ ret.lc_sumsquare += t.lc_sumsquare;
+ }
+
+ rc = seq_printf(p, "%-25s "LPU64" samples [%s]", cntr->lc_name,
+ ret.lc_count, cntr->lc_units);
+ if (rc < 0)
+ goto out;
+
+ if ((cntr->lc_config & LPROCFS_CNTR_AVGMINMAX) && (ret.lc_count > 0)) {
+ rc = seq_printf(p, " "LPU64" "LPU64" "LPU64,
+ ret.lc_min, ret.lc_max, ret.lc_sum);
+ if (rc < 0)
+ goto out;
+ if (cntr->lc_config & LPROCFS_CNTR_STDDEV)
+ rc = seq_printf(p, " "LPU64, ret.lc_sumsquare);
+ if (rc < 0)
+ goto out;
+ }
+ rc = seq_printf(p, "\n");
+ out:
+ return (rc < 0) ? rc : 0;
+}
+
+struct seq_operations lprocfs_stats_seq_sops = {
+ start: lprocfs_stats_seq_start,
+ stop: lprocfs_stats_seq_stop,
+ next: lprocfs_stats_seq_next,
+ show: lprocfs_stats_seq_show,
+};
+
+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;
+
+ LPROCFS_ENTRY_AND_CHECK(dp);
+ rc = seq_open(file, &lprocfs_stats_seq_sops);
+ if (rc) {
+ LPROCFS_EXIT();
+ return rc;
+ }
+ seq = file->private_data;
+ seq->private = dp->data;
+ return 0;
}
-int lprocfs_dereg_mnt(struct proc_dir_entry* root)
+struct file_operations lprocfs_stats_seq_fops = {
+ .owner = THIS_MODULE,
+ .open = lprocfs_stats_seq_open,
+ .read = seq_read,
+ .write = lprocfs_stats_seq_write,
+ .llseek = seq_lseek,
+ .release = lprocfs_seq_release,
+};
+
+int lprocfs_register_stats(struct proc_dir_entry *root, const char *name,
+ struct lprocfs_stats *stats)
{
- lprocfs_remove_all(root);
+ struct proc_dir_entry *entry;
+ LASSERT(root != NULL);
+
+ entry = create_proc_entry(name, 0644, root);
+ if (entry == NULL)
+ return -ENOMEM;
+ entry->proc_fops = &lprocfs_stats_seq_fops;
+ entry->data = (void *)stats;
return 0;
}
-int lprocfs_reg_class(struct obd_type* type, struct lprocfs_vars* list,
- void* data)
+void lprocfs_counter_init(struct lprocfs_stats *stats, int index,
+ unsigned conf, const char *name, const char *units)
{
- struct proc_dir_entry* root;
- int retval;
+ struct lprocfs_counter *c;
+ int i;
+ unsigned int num_cpu;
+
+ LASSERT(stats != NULL);
+
+ num_cpu = lprocfs_stats_lock(stats, LPROCFS_GET_NUM_CPU);
- root = lprocfs_mkdir(type->typ_name, proc_lustre_dev_root);
+ for (i = 0; i < num_cpu; i++) {
+ c = &(stats->ls_percpu[i]->lp_cntr[index]);
+ c->lc_config = conf;
+ c->lc_count = 0;
+ c->lc_sum = 0;
+ c->lc_min = ~(__u64)0;
+ c->lc_max = 0;
+ c->lc_name = name;
+ c->lc_units = units;
+ }
- type->typ_procroot = root;
+ lprocfs_stats_unlock(stats);
+}
+EXPORT_SYMBOL(lprocfs_counter_init);
- retval = lprocfs_add_vars(root, list, data);
+#define LPROCFS_OBD_OP_INIT(base, stats, op) \
+do { \
+ unsigned int coffset = base + OBD_COUNTER_OFFSET(op); \
+ LASSERT(coffset < stats->ls_num); \
+ lprocfs_counter_init(stats, coffset, 0, #op, "reqs"); \
+} while (0)
- return retval;
+void lprocfs_init_ops_stats(int num_private_stats, struct lprocfs_stats *stats)
+{
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, iocontrol);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, get_info);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, set_info_async);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, attach);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, detach);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, setup);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, precleanup);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, cleanup);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, process_config);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, postrecov);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, add_conn);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, del_conn);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, connect);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, reconnect);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, disconnect);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, fid_init);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, fid_fini);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, fid_alloc);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, fid_delete);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, statfs);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, statfs_async);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, packmd);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, unpackmd);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, checkmd);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, preallocate);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, precreate);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, create);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, destroy);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, setattr);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, setattr_async);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, getattr);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, getattr_async);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, brw);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, brw_async);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, prep_async_page);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, queue_async_io);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, queue_group_io);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, trigger_group_io);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, set_async_flags);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, teardown_async_page);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, merge_lvb);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, adjust_kms);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, punch);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, sync);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, migrate);
+ 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, match);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, change_cbdata);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, cancel);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, cancel_unused);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, join_lru);
+ 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);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, pin);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, unpin);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, import_event);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, notify);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, health_check);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, quotacheck);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, quotactl);
+ LPROCFS_OBD_OP_INIT(num_private_stats, stats, ping);
}
-int lprocfs_dereg_class(struct obd_type* class)
+int lprocfs_alloc_obd_stats(struct obd_device *obd, unsigned num_private_stats)
{
- if(!class){
- CDEBUG(D_OTHER, "Non-existent class",
- class->typ_name);
- return 0;
+ struct lprocfs_stats *stats;
+ unsigned int num_stats;
+ int rc, i;
+
+ LASSERT(obd->obd_stats == NULL);
+ LASSERT(obd->obd_proc_entry != NULL);
+ LASSERT(obd->obd_cntr_base == 0);
+
+ num_stats = ((int)sizeof(*obd->obd_type->typ_dt_ops) / sizeof(void *)) +
+ num_private_stats - 1 /* o_owner */;
+ stats = lprocfs_alloc_stats(num_stats, 0);
+ if (stats == NULL)
+ return -ENOMEM;
+
+ lprocfs_init_ops_stats(num_private_stats, stats);
+
+ for (i = num_private_stats; i < num_stats; i++) {
+ /* If this LBUGs, it is likely that an obd
+ * operation was added to struct obd_ops in
+ * <obd.h>, and that the corresponding line item
+ * LPROCFS_OBD_OP_INIT(.., .., opname)
+ * is missing from the list above. */
+ LASSERTF(stats->ls_percpu[0]->lp_cntr[i].lc_name != NULL,
+ "Missing obd_stat initializer obd_op "
+ "operation at offset %d.\n", i - num_private_stats);
+ }
+ rc = lprocfs_register_stats(obd->obd_proc_entry, "stats", stats);
+ if (rc < 0) {
+ lprocfs_free_stats(&stats);
+ } else {
+ obd->obd_stats = stats;
+ obd->obd_cntr_base = num_private_stats;
+ }
+ return rc;
+}
+
+void lprocfs_free_obd_stats(struct obd_device *obd)
+{
+ if (obd->obd_stats)
+ lprocfs_free_stats(&obd->obd_stats);
+}
+
+#define LPROCFS_MD_OP_INIT(base, stats, op) \
+do { \
+ unsigned int coffset = base + MD_COUNTER_OFFSET(op); \
+ LASSERT(coffset < stats->ls_num); \
+ lprocfs_counter_init(stats, coffset, 0, #op, "reqs"); \
+} while (0)
+
+int lprocfs_alloc_md_stats(struct obd_device *obd,
+ unsigned num_private_stats)
+{
+ struct lprocfs_stats *stats;
+ unsigned int num_stats;
+ int rc, i;
+
+ LASSERT(obd->md_stats == NULL);
+ LASSERT(obd->obd_proc_entry != NULL);
+ LASSERT(obd->md_cntr_base == 0);
+
+ num_stats = 1 + MD_COUNTER_OFFSET(get_remote_perm) +
+ num_private_stats;
+ stats = lprocfs_alloc_stats(num_stats, 0);
+ if (stats == NULL)
+ return -ENOMEM;
+
+ LPROCFS_MD_OP_INIT(num_private_stats, stats, getstatus);
+ LPROCFS_MD_OP_INIT(num_private_stats, stats, change_cbdata);
+ LPROCFS_MD_OP_INIT(num_private_stats, stats, close);
+ LPROCFS_MD_OP_INIT(num_private_stats, stats, create);
+ LPROCFS_MD_OP_INIT(num_private_stats, stats, done_writing);
+ LPROCFS_MD_OP_INIT(num_private_stats, stats, enqueue);
+ LPROCFS_MD_OP_INIT(num_private_stats, stats, getattr);
+ LPROCFS_MD_OP_INIT(num_private_stats, stats, getattr_name);
+ LPROCFS_MD_OP_INIT(num_private_stats, stats, intent_lock);
+ LPROCFS_MD_OP_INIT(num_private_stats, stats, link);
+ LPROCFS_MD_OP_INIT(num_private_stats, stats, rename);
+ LPROCFS_MD_OP_INIT(num_private_stats, stats, is_subdir);
+ LPROCFS_MD_OP_INIT(num_private_stats, stats, setattr);
+ LPROCFS_MD_OP_INIT(num_private_stats, stats, sync);
+ LPROCFS_MD_OP_INIT(num_private_stats, stats, readpage);
+ LPROCFS_MD_OP_INIT(num_private_stats, stats, unlink);
+ LPROCFS_MD_OP_INIT(num_private_stats, stats, setxattr);
+ LPROCFS_MD_OP_INIT(num_private_stats, stats, getxattr);
+ LPROCFS_MD_OP_INIT(num_private_stats, stats, init_ea_size);
+ LPROCFS_MD_OP_INIT(num_private_stats, stats, get_lustre_md);
+ LPROCFS_MD_OP_INIT(num_private_stats, stats, free_lustre_md);
+ LPROCFS_MD_OP_INIT(num_private_stats, stats, set_open_replay_data);
+ LPROCFS_MD_OP_INIT(num_private_stats, stats, clear_open_replay_data);
+ LPROCFS_MD_OP_INIT(num_private_stats, stats, set_lock_data);
+ LPROCFS_MD_OP_INIT(num_private_stats, stats, lock_match);
+ LPROCFS_MD_OP_INIT(num_private_stats, stats, cancel_unused);
+ LPROCFS_MD_OP_INIT(num_private_stats, stats, renew_capa);
+ LPROCFS_MD_OP_INIT(num_private_stats, stats, get_remote_perm);
+
+ for (i = num_private_stats; i < num_stats; i++) {
+ if (stats->ls_percpu[0]->lp_cntr[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, "stats", stats);
+ if (rc < 0) {
+ lprocfs_free_stats(&stats);
+ } else {
+ obd->md_stats = stats;
+ obd->md_cntr_base = num_private_stats;
+ }
+ return rc;
+}
+
+void lprocfs_free_md_stats(struct obd_device *obd)
+{
+ struct lprocfs_stats *stats = obd->md_stats;
+
+ if (stats != NULL) {
+ obd->md_stats = NULL;
+ lprocfs_free_stats(&stats);
+ }
+}
+
+int lprocfs_exp_rd_nid(char *page, char **start, off_t off, int count,
+ int *eof, void *data)
+{
+ struct obd_export *exp = (struct obd_export*)data;
+ LASSERT(exp != NULL);
+ *eof = 1;
+ return snprintf(page, count, "%s\n", obd_export_nid2str(exp));
+}
+
+int lprocfs_exp_rd_uuid(char *page, char **start, off_t off, int count,
+ int *eof, void *data)
+{
+ struct obd_export *exp = (struct obd_export*)data;
+ LASSERT(exp != NULL);
+ *eof = 1;
+ return snprintf(page, count, "%s\n",
+ obd_uuid2str(&exp->exp_client_uuid));
+}
+
+int lprocfs_exp_setup(struct obd_export *exp)
+{
+ char name[sizeof (exp->exp_client_uuid.uuid) + 3];
+ int i = 1, rc;
+ ENTRY;
+ if (!exp || !exp->exp_obd || !exp->exp_obd->obd_proc_exports)
+ RETURN(-EINVAL);
+ mutex_down(&exp->exp_obd->obd_proc_exp_sem);
+ sprintf(name, "%s", (char *)exp->exp_client_uuid.uuid);
+ while (lprocfs_srch(exp->exp_obd->obd_proc_exports, name)) {
+ /* We might add a new export before deleting the old one during
+ an eviction (recovery-small 19a). Suckage. We
+ could block, or come up with a new name, or just give up. */
+ if (++i > 9)
+ GOTO(out, rc = -EEXIST);
+ sprintf(name, "%s:%d", (char *)exp->exp_client_uuid.uuid, i);
+ }
+
+ /* Create a proc entry for this export */
+ exp->exp_proc = proc_mkdir(name, exp->exp_obd->obd_proc_exports);
+ if (!exp->exp_proc) {
+ CERROR("Error making export directory for %s\n", name);
+ GOTO(out, rc = -ENOMEM);
}
- lprocfs_remove_all(class->typ_procroot);
+ /* Always add nid and uuid */
+ rc = lprocfs_add_simple(exp->exp_proc, "nid",
+ lprocfs_exp_rd_nid, NULL, exp);
+ if (rc)
+ GOTO(out, rc);
+ rc = lprocfs_add_simple(exp->exp_proc, "uuid",
+ lprocfs_exp_rd_uuid, NULL, exp);
+ if (rc)
+ GOTO(out, rc);
+ /* Always add ldlm stats */
+ exp->exp_ldlm_stats = lprocfs_alloc_stats(LDLM_LAST_OPC
+ - LDLM_FIRST_OPC, 0);
+ if (exp->exp_ldlm_stats == NULL) {
+ lprocfs_remove(&exp->exp_proc);
+ GOTO(out, rc = -ENOMEM);
+ }
- CDEBUG(D_OTHER, "LPROCFS removed = %s\n", class->typ_name);
+ lprocfs_counter_init(exp->exp_ldlm_stats,
+ LDLM_ENQUEUE - LDLM_FIRST_OPC,
+ 0, "ldlm_enqueue", "reqs");
+ lprocfs_counter_init(exp->exp_ldlm_stats,
+ LDLM_CONVERT - LDLM_FIRST_OPC,
+ 0, "ldlm_convert", "reqs");
+ lprocfs_counter_init(exp->exp_ldlm_stats,
+ LDLM_CANCEL - LDLM_FIRST_OPC,
+ 0, "ldlm_cancel", "reqs");
+ lprocfs_counter_init(exp->exp_ldlm_stats,
+ LDLM_BL_CALLBACK - LDLM_FIRST_OPC,
+ 0, "ldlm_bl_callback", "reqs");
+ lprocfs_counter_init(exp->exp_ldlm_stats,
+ LDLM_CP_CALLBACK - LDLM_FIRST_OPC,
+ 0, "ldlm_cp_callback", "reqs");
+ lprocfs_counter_init(exp->exp_ldlm_stats,
+ LDLM_GL_CALLBACK - LDLM_FIRST_OPC,
+ 0, "ldlm_gl_callback", "reqs");
+ lprocfs_register_stats(exp->exp_proc, "ldlm_stats",
+ exp->exp_ldlm_stats);
+out:
+ mutex_up(&exp->exp_obd->obd_proc_exp_sem);
+ RETURN(rc);
+}
+int lprocfs_exp_cleanup(struct obd_export *exp)
+{
+ mutex_down(&exp->exp_obd->obd_proc_exp_sem);
+ lprocfs_remove(&exp->exp_proc);
+ lprocfs_free_stats(&exp->exp_ops_stats);
+ lprocfs_free_stats(&exp->exp_ldlm_stats);
+ mutex_up(&exp->exp_obd->obd_proc_exp_sem);
return 0;
+}
+int lprocfs_write_helper(const char *buffer, unsigned long count,
+ int *val)
+{
+ return lprocfs_write_frac_helper(buffer, count, val, 1);
}
-int lprocfs_reg_main()
+
+int lprocfs_write_frac_helper(const char *buffer, unsigned long count,
+ int *val, int mult)
{
- proc_lustre_root = lprocfs_mkdir("lustre", &proc_root);
- if (!proc_lustre_root) {
- CERROR(" !! Cannot create /proc/lustre !! \n");
+ char kernbuf[20], *end, *pbuf;
+
+ if (count > (sizeof(kernbuf) - 1))
return -EINVAL;
+
+ if (copy_from_user(kernbuf, buffer, count))
+ return -EFAULT;
+
+ kernbuf[count] = '\0';
+ pbuf = kernbuf;
+ if (*pbuf == '-') {
+ mult = -mult;
+ pbuf++;
}
- proc_lustre_dev_root = lprocfs_mkdir("devices", proc_lustre_root);
- if (!proc_lustre_dev_root) {
- CERROR(" !! Cannot create /proc/lustre/devices !! \n");
+ *val = (int)simple_strtoul(pbuf, &end, 10) * mult;
+ if (pbuf == end)
return -EINVAL;
+
+ if (end != NULL && *end == '.') {
+ int temp_val, pow = 1;
+ int i;
+
+ pbuf = end + 1;
+ if (strlen(pbuf) > 5)
+ pbuf[5] = '\0'; /*only allow 5bits fractional*/
+
+ temp_val = (int)simple_strtoul(pbuf, &end, 10) * mult;
+
+ if (pbuf < end) {
+ for (i = 0; i < (end - pbuf); i++)
+ pow *= 10;
+
+ *val += temp_val / pow;
+ }
}
- proc_lustre_fs_root = lprocfs_mkdir("mnt_pnt", proc_lustre_root);
+ return 0;
+}
- if (!proc_lustre_fs_root) {
- CERROR(" !! Cannot create /proc/lustre/mnt_pnt !! \n");
+int lprocfs_read_frac_helper(char *buffer, unsigned long count, long val, int mult)
+{
+ long decimal_val, frac_val;
+ int prtn;
+
+ if (count < 10)
return -EINVAL;
+
+ decimal_val = val / mult;
+ prtn = snprintf(buffer, count, "%ld", decimal_val);
+ frac_val = val % mult;
+
+ if (prtn < (count - 4) && frac_val > 0) {
+ long temp_frac;
+ int i, temp_mult = 1, frac_bits = 0;
+
+ temp_frac = frac_val * 10;
+ buffer[prtn++] = '.';
+ while (frac_bits < 2 && (temp_frac / mult) < 1 ) { /*only reserved 2bits fraction*/
+ buffer[prtn++] ='0';
+ temp_frac *= 10;
+ frac_bits++;
+ }
+ /*
+ Need to think these cases :
+ 1. #echo x.00 > /proc/xxx output result : x
+ 2. #echo x.0x > /proc/xxx output result : x.0x
+ 3. #echo x.x0 > /proc/xxx output result : x.x
+ 4. #echo x.xx > /proc/xxx output result : x.xx
+ Only reserved 2bits fraction.
+ */
+ for (i = 0; i < (5 - prtn); i++)
+ temp_mult *= 10;
+
+ frac_bits = min((int)count - prtn, 3 - frac_bits);
+ prtn += snprintf(buffer + prtn, frac_bits, "%ld", frac_val * temp_mult / mult);
+
+ prtn--;
+ while(buffer[prtn] < '1' || buffer[prtn] > '9') {
+ prtn--;
+ if (buffer[prtn] == '.') {
+ prtn--;
+ break;
+ }
+ }
+ prtn++;
}
+ buffer[prtn++] ='\n';
+ return prtn;
+}
- return 0;
+int lprocfs_write_u64_helper(const char *buffer, unsigned long count,__u64 *val)
+{
+ return lprocfs_write_frac_u64_helper(buffer, count, val, 1);
}
-int lprocfs_dereg_main()
+int lprocfs_write_frac_u64_helper(const char *buffer, unsigned long count,
+ __u64 *val, int mult)
{
- lprocfs_remove_all(proc_lustre_root);
- proc_lustre_root = 0;
- proc_lustre_dev_root = 0;
- proc_lustre_fs_root = 0;
+ char kernbuf[22], *end, *pbuf;
+ __u64 whole, frac = 0, units;
+ unsigned frac_d = 1;
+
+ if (count > (sizeof(kernbuf) - 1) )
+ return -EINVAL;
+
+ if (copy_from_user(kernbuf, buffer, count))
+ return -EFAULT;
+
+ kernbuf[count] = '\0';
+ pbuf = kernbuf;
+ if (*pbuf == '-') {
+ mult = -mult;
+ pbuf++;
+ }
+
+ whole = simple_strtoull(pbuf, &end, 10);
+ if (pbuf == end)
+ return -EINVAL;
+ if (end != NULL && *end == '.') {
+ int i;
+ pbuf = end + 1;
+
+ /* need to limit frac_d to a __u32 */
+ if (strlen(pbuf) > 10)
+ pbuf[10] = '\0';
+
+ frac = simple_strtoull(pbuf, &end, 10);
+ /* count decimal places */
+ for (i = 0; i < (end - pbuf); i++)
+ frac_d *= 10;
+ }
+
+ units = 1;
+ switch(*end) {
+ case 'p': case 'P':
+ units <<= 10;
+ case 't': case 'T':
+ units <<= 10;
+ case 'g': case 'G':
+ units <<= 10;
+ case 'm': case 'M':
+ units <<= 10;
+ case 'k': case 'K':
+ units <<= 10;
+ }
+ /* Specified units override the multiplier */
+ if (units)
+ mult = mult < 0 ? -units : units;
+
+ frac *= mult;
+ do_div(frac, frac_d);
+ *val = whole * mult + frac;
return 0;
}
+int lprocfs_seq_create(cfs_proc_dir_entry_t *parent,
+ char *name, mode_t mode,
+ struct file_operations *seq_fops, void *data)
+{
+ struct proc_dir_entry *entry;
+ ENTRY;
-/*
- * Needs to go...
- */
-int lprocfs_ll_rd(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+ entry = create_proc_entry(name, mode, parent);
+ if (entry == NULL)
+ RETURN(-ENOMEM);
+ entry->proc_fops = seq_fops;
+ entry->data = data;
+
+ RETURN(0);
+}
+EXPORT_SYMBOL(lprocfs_seq_create);
+
+__inline__ int lprocfs_obd_seq_create(struct obd_device *dev, char *name,
+ mode_t mode,
+ struct file_operations *seq_fops,
+ void *data)
{
- __u64 *temp = (__u64 *)data;
- int len;
+ return (lprocfs_seq_create(dev->obd_proc_entry, name,
+ mode, seq_fops, data));
+}
+EXPORT_SYMBOL(lprocfs_obd_seq_create);
- len = snprintf(page, count, LPU64"\n", *temp);
+void lprocfs_oh_tally(struct obd_histogram *oh, unsigned int value)
+{
+ if (value >= OBD_HIST_MAX)
+ value = OBD_HIST_MAX - 1;
- return len;
+ spin_lock(&oh->oh_lock);
+ oh->oh_buckets[value]++;
+ spin_unlock(&oh->oh_lock);
}
+EXPORT_SYMBOL(lprocfs_oh_tally);
+
+void lprocfs_oh_tally_log2(struct obd_histogram *oh, unsigned int value)
+{
+ unsigned int val;
+
+ for (val = 0; ((1 << val) < value) && (val <= OBD_HIST_MAX); val++)
+ ;
+
+ lprocfs_oh_tally(oh, val);
+}
+EXPORT_SYMBOL(lprocfs_oh_tally_log2);
+
+unsigned long lprocfs_oh_sum(struct obd_histogram *oh)
+{
+ unsigned long ret = 0;
+ int i;
+
+ for (i = 0; i < OBD_HIST_MAX; i++)
+ ret += oh->oh_buckets[i];
+ return ret;
+}
+EXPORT_SYMBOL(lprocfs_oh_sum);
+
+void lprocfs_oh_clear(struct obd_histogram *oh)
+{
+ spin_lock(&oh->oh_lock);
+ memset(oh->oh_buckets, 0, sizeof(oh->oh_buckets));
+ spin_unlock(&oh->oh_lock);
+}
+EXPORT_SYMBOL(lprocfs_oh_clear);
+
+int lprocfs_obd_rd_recovery_status(char *page, char **start, off_t off,
+ int count, int *eof, void *data)
+{
+ struct obd_device *obd = data;
+ int len = 0, size;
+
+ LASSERT(obd != NULL);
+ LASSERT(count >= 0);
+
+ /* Set start of user data returned to
+ page + off since the user may have
+ requested to read much smaller than
+ what we need to read */
+ *start = page + off;
+
+ /* We know we are allocated a page here.
+ Also we know that this function will
+ not need to write more than a page
+ so we can truncate at CFS_PAGE_SIZE. */
+ size = min(count + (int)off + 1, (int)CFS_PAGE_SIZE);
-#endif /* LPROC_SNMP */
+ /* Initialize the page */
+ memset(page, 0, size);
-EXPORT_SYMBOL(lprocfs_reg_obd);
-EXPORT_SYMBOL(lprocfs_dereg_obd);
-EXPORT_SYMBOL(lprocfs_reg_main);
-EXPORT_SYMBOL(lprocfs_dereg_main);
-EXPORT_SYMBOL(lprocfs_reg_mnt);
-EXPORT_SYMBOL(lprocfs_dereg_mnt);
+ if (lprocfs_obd_snprintf(&page, size, &len, "status: ") <= 0)
+ goto out;
+
+ if (obd->obd_max_recoverable_clients == 0) {
+ lprocfs_obd_snprintf(&page, size, &len, "INACTIVE\n");
+ goto fclose;
+ }
+
+ /* sampled unlocked, but really... */
+ if (obd->obd_recovering == 0) {
+ if (lprocfs_obd_snprintf(&page, size, &len, "COMPLETE\n") <= 0)
+ goto out;
+
+ if (lprocfs_obd_snprintf(&page, size, &len, "recovery_start: %lu\n",
+ obd->obd_recovery_start) <= 0)
+ goto out;
+
+ if (lprocfs_obd_snprintf(&page, size, &len, "recovery_end: %lu\n",
+ obd->obd_recovery_end) <= 0)
+ goto out;
+
+ /* Number of clients have have completed recovery */
+ if (lprocfs_obd_snprintf(&page, size, &len, "recovered_clients: %d\n",
+ obd->obd_max_recoverable_clients - obd->obd_recoverable_clients) <= 0)
+ goto out;
+
+ if (lprocfs_obd_snprintf(&page, size, &len, "unrecovered_clients: %d\n",
+ obd->obd_recoverable_clients) <= 0)
+ goto out;
+
+ if (lprocfs_obd_snprintf(&page, size, &len, "last_transno: "LPD64"\n",
+ obd->obd_next_recovery_transno - 1) <= 0)
+ goto out;
+
+ lprocfs_obd_snprintf(&page, size, &len, "replayed_requests: %d\n", obd->obd_replayed_requests);
+ goto fclose;
+ }
+
+ if (lprocfs_obd_snprintf(&page, size, &len, "RECOVERING\n") <= 0)
+ goto out;
+
+ if (lprocfs_obd_snprintf(&page, size, &len, "recovery_start: %lu\n",
+ obd->obd_recovery_start) <= 0)
+ goto out;
+
+ if (lprocfs_obd_snprintf(&page, size, &len, "time remaining: %lu\n",
+ CURRENT_SECONDS >= obd->obd_recovery_end ? 0 :
+ obd->obd_recovery_end - CURRENT_SECONDS) <= 0)
+ goto out;
+
+ if(lprocfs_obd_snprintf(&page, size, &len, "connected_clients: %d/%d\n",
+ obd->obd_connected_clients,
+ obd->obd_max_recoverable_clients) <= 0)
+ goto out;
+
+ /* Number of clients have have completed recovery */
+ if (lprocfs_obd_snprintf(&page, size, &len, "completed_clients: %d/%d\n",
+ obd->obd_max_recoverable_clients - obd->obd_recoverable_clients,
+ obd->obd_max_recoverable_clients) <= 0)
+ goto out;
+
+ if (lprocfs_obd_snprintf(&page, size, &len, "replayed_requests: %d/??\n",
+ obd->obd_replayed_requests) <= 0)
+ goto out;
+
+ if (lprocfs_obd_snprintf(&page, size, &len, "queued_requests: %d\n",
+ obd->obd_requests_queued_for_recovery) <= 0)
+ goto out;
+
+ lprocfs_obd_snprintf(&page, size, &len, "next_transno: "LPD64"\n", obd->obd_next_recovery_transno);
+
+fclose:
+ *eof = 1;
+out:
+ return min(count, len - (int)off);
+}
+EXPORT_SYMBOL(lprocfs_obd_rd_recovery_status);
+
+EXPORT_SYMBOL(lprocfs_register);
+EXPORT_SYMBOL(lprocfs_srch);
+EXPORT_SYMBOL(lprocfs_remove);
EXPORT_SYMBOL(lprocfs_add_vars);
-EXPORT_SYMBOL(lprocfs_reg_class);
-EXPORT_SYMBOL(lprocfs_dereg_class);
-EXPORT_SYMBOL(lprocfs_ll_rd);
+EXPORT_SYMBOL(lprocfs_obd_setup);
+EXPORT_SYMBOL(lprocfs_obd_cleanup);
+EXPORT_SYMBOL(lprocfs_alloc_stats);
+EXPORT_SYMBOL(lprocfs_free_stats);
+EXPORT_SYMBOL(lprocfs_clear_stats);
+EXPORT_SYMBOL(lprocfs_register_stats);
+EXPORT_SYMBOL(lprocfs_init_ops_stats);
+EXPORT_SYMBOL(lprocfs_alloc_obd_stats);
+EXPORT_SYMBOL(lprocfs_free_obd_stats);
+EXPORT_SYMBOL(lprocfs_exp_setup);
+EXPORT_SYMBOL(lprocfs_exp_cleanup);
+
+EXPORT_SYMBOL(lprocfs_rd_u64);
+EXPORT_SYMBOL(lprocfs_rd_atomic);
+EXPORT_SYMBOL(lprocfs_wr_atomic);
+EXPORT_SYMBOL(lprocfs_rd_uint);
+EXPORT_SYMBOL(lprocfs_wr_uint);
+EXPORT_SYMBOL(lprocfs_rd_uuid);
+EXPORT_SYMBOL(lprocfs_rd_name);
+EXPORT_SYMBOL(lprocfs_rd_fstype);
+EXPORT_SYMBOL(lprocfs_rd_server_uuid);
+EXPORT_SYMBOL(lprocfs_rd_conn_uuid);
+EXPORT_SYMBOL(lprocfs_rd_num_exports);
+EXPORT_SYMBOL(lprocfs_rd_numrefs);
+EXPORT_SYMBOL(lprocfs_rd_blksize);
+EXPORT_SYMBOL(lprocfs_rd_kbytestotal);
+EXPORT_SYMBOL(lprocfs_rd_kbytesfree);
+EXPORT_SYMBOL(lprocfs_rd_kbytesavail);
+EXPORT_SYMBOL(lprocfs_rd_filestotal);
+EXPORT_SYMBOL(lprocfs_rd_filesfree);
+EXPORT_SYMBOL(lprocfs_write_helper);
+EXPORT_SYMBOL(lprocfs_write_frac_helper);
+EXPORT_SYMBOL(lprocfs_read_frac_helper);
+EXPORT_SYMBOL(lprocfs_write_u64_helper);
+EXPORT_SYMBOL(lprocfs_write_frac_u64_helper);
+#endif /* LPROCFS*/
git://git.whamcloud.com / fs / lustre-release.git / blobdiff