/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
*
- * Object Devices Class Driver
+ * GPL HEADER START
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * Copyright (C) 2001-2003 Cluster File Systems, Inc.
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
*
- * This file is part of Lustre, http://www.lustre.org.
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
*
- * 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 should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
*
- * 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.
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright 2008 Sun Microsystems, Inc. All rights reserved
+ * Use is subject to license terms.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
*
- * 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.
+ * lustre/obdclass/linux/linux-module.c
*
+ * Object Devices Class Driver
* These are the only exported functions, they provide some generic
* infrastructure for managing object devices
*/
+
#define DEBUG_SUBSYSTEM S_CLASS
#ifndef EXPORT_SYMTAB
# define EXPORT_SYMTAB
ENTRY;
err = copy_from_user(&hdr, (void *)arg, sizeof(hdr));
- if ( err )
+ if ( err )
RETURN(err);
if (hdr.ioc_version != OBD_IOCTL_VERSION) {
int obd_ioctl_popdata(void *arg, void *data, int len)
{
- int err;
-
+ int err;
+
err = copy_to_user(arg, data, len);
if (err)
err = -EFAULT;
BUILD_VERSION);
#else
return snprintf(page, count, "lustre: %s\nkernel: %s\nbuild: %s\n",
- LUSTRE_VERSION_STRING, "patchless", BUILD_VERSION);
+ LUSTRE_VERSION_STRING, "patchless_client",
+ BUILD_VERSION);
#endif
}
);
}
+/**
+ * Check all obd devices health
+ *
+ * \param page
+ * \param start
+ * \param off
+ * \param count
+ * \param eof
+ * \param data
+ * proc read function parameters, please refer to kernel
+ * code fs/proc/generic.c proc_file_read()
+ * \param data [in] unused
+ *
+ * \retval number of characters printed
+ */
static int obd_proc_read_health(char *page, char **start, off_t off,
int count, int *eof, void *data)
{
struct obd_device *obd;
obd = class_num2obd(i);
- if (obd == NULL)
+ if (obd == NULL || !obd->obd_attached || !obd->obd_set_up)
continue;
LASSERT(obd->obd_magic == OBD_DEVICE_MAGIC);
if (obd->obd_stopping)
continue;
- class_incref(obd);
+ class_incref(obd, __FUNCTION__, cfs_current());
spin_unlock(&obd_dev_lock);
if (obd_health_check(obd)) {
"device %s reported unhealthy\n",
obd->obd_name);
}
- class_decref(obd);
+ class_decref(obd, __FUNCTION__, cfs_current());
spin_lock(&obd_dev_lock);
}
spin_unlock(&obd_dev_lock);
return rc;
}
-static int obd_proc_rd_health_timeout(char *page, char **start, off_t off,
- int count, int *eof, void *data)
-{
- *eof = 1;
- return snprintf(page, count, "%d\n", obd_health_check_timeout);
-}
-
-static int obd_proc_wr_health_timeout(struct file *file, const char *buffer,
- unsigned long count, void *data)
-{
- int val, rc;
-
- rc = lprocfs_write_helper(buffer, count, &val);
- if (rc)
- return rc;
-
- obd_health_check_timeout = val;
-
- return count;
-}
-
/* Root for /proc/fs/lustre */
struct proc_dir_entry *proc_lustre_root = NULL;
{ "version", obd_proc_read_version, NULL, NULL },
{ "pinger", obd_proc_read_pinger, NULL, NULL },
{ "health_check", obd_proc_read_health, NULL, NULL },
- { "health_check_timeout", obd_proc_rd_health_timeout,
- obd_proc_wr_health_timeout, NULL },
{ 0 }
};
#else
}
static void *obd_device_list_seq_next(struct seq_file *p, void *v, loff_t *pos)
-{
+{
++*pos;
if (*pos >= class_devno_max())
return NULL;
int class_procfs_init(void)
{
#ifdef __KERNEL__
- struct proc_dir_entry *entry;
+ int rc;
ENTRY;
obd_sysctl_init();
- proc_lustre_root = proc_mkdir("lustre", proc_root_fs);
- if (!proc_lustre_root) {
- printk(KERN_ERR
- "LustreError: error registering /proc/fs/lustre\n");
- RETURN(-ENOMEM);
- }
- proc_version = lprocfs_add_vars(proc_lustre_root, lprocfs_base, NULL);
- entry = create_proc_entry("devices", 0444, proc_lustre_root);
- if (entry == NULL) {
- CERROR("error registering /proc/fs/lustre/devices\n");
- lprocfs_remove(&proc_lustre_root);
- RETURN(-ENOMEM);
- }
- entry->proc_fops = &obd_device_list_fops;
+ proc_lustre_root = lprocfs_register("lustre", proc_root_fs,
+ lprocfs_base, NULL);
+ rc = lprocfs_seq_create(proc_lustre_root, "devices", 0444,
+ &obd_device_list_fops, NULL);
+ if (rc)
+ CERROR("error adding /proc/fs/lustre/devices file\n");
#else
ENTRY;
#endif
git://git.whamcloud.com / fs / lustre-release.git / blobdiff