/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
*
- * Object Devices Class Driver
+ * GPL HEADER START
*
- * Copyright (C) 2001-2003 Cluster File Systems, Inc.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * This file is part of Lustre, http://www.lustre.org.
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
*
- * Lustre is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
+ * This program is 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 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
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
*
- * 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.
+ * 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.
*
- * These are the only exported functions, they provide some generic
- * infrastructure for managing object devices
+ * 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.
*/
#define DEBUG_SUBSYSTEM S_CLASS
#ifndef EXPORT_SYMTAB
# define EXPORT_SYMTAB
#endif
-#ifdef __KERNEL__
-#include <linux/config.h> /* for CONFIG_PROC_FS */
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/major.h>
-#include <linux/sched.h>
-#include <linux/lp.h>
-#include <linux/slab.h>
-#include <linux/ioport.h>
-#include <linux/fcntl.h>
-#include <linux/delay.h>
-#include <linux/skbuff.h>
-#include <linux/proc_fs.h>
-#include <linux/fs.h>
-#include <linux/poll.h>
-#include <linux/init.h>
-#include <linux/list.h>
-#include <linux/highmem.h>
-#include <asm/io.h>
-#include <asm/ioctls.h>
-#include <asm/system.h>
-#include <asm/poll.h>
-#include <asm/uaccess.h>
-#include <linux/miscdevice.h>
-#include <linux/smp_lock.h>
-#include <linux/seq_file.h>
-#else
+#ifndef __KERNEL__
# include <liblustre.h>
+#else
+# include <asm/atomic.h>
#endif
-#include <linux/obd_support.h>
-#include <linux/obd_class.h>
-#include <linux/lustre_debug.h>
-#include <linux/lprocfs_status.h>
-#ifdef __KERNEL__
-#include <linux/lustre_build_version.h>
-#include <linux/lustre_version.h>
-#endif
+#include <obd_support.h>
+#include <obd_class.h>
+#include <lnet/lnetctl.h>
+#include <lustre_debug.h>
+#include <lprocfs_status.h>
+#include <lustre/lustre_build_version.h>
#include <libcfs/list.h>
+#include "llog_internal.h"
#ifndef __KERNEL__
/* liblustre workaround */
-atomic_t portal_kmemory = {0};
+cfs_atomic_t libcfs_kmemory = {0};
#endif
-struct obd_device obd_dev[MAX_OBD_DEVICES];
-struct list_head obd_types;
-spinlock_t obd_dev_lock;
+struct obd_device *obd_devs[MAX_OBD_DEVICES];
+cfs_list_t obd_types;
+cfs_spinlock_t obd_dev_lock = CFS_SPIN_LOCK_UNLOCKED;
+
#ifndef __KERNEL__
-atomic_t obd_memory;
-int obd_memmax;
+__u64 obd_max_pages = 0;
+__u64 obd_max_alloc = 0;
+__u64 obd_alloc;
+__u64 obd_pages;
#endif
-int proc_version;
-
/* The following are visible and mutable through /proc/sys/lustre/. */
-unsigned int obd_fail_loc;
+unsigned int obd_debug_peer_on_timeout;
unsigned int obd_dump_on_timeout;
-unsigned int obd_timeout = 100;
-unsigned int ldlm_timeout = 6;
-char obd_lustre_upcall[128] = "DEFAULT"; /* or NONE or /full/path/to/upcall */
-unsigned int obd_sync_filter = 1; /* = 1, sync by default */
-
-DECLARE_WAIT_QUEUE_HEAD(obd_race_waitq);
+unsigned int obd_dump_on_eviction;
+unsigned int obd_max_dirty_pages = 256;
+unsigned int obd_timeout = OBD_TIMEOUT_DEFAULT; /* seconds */
+unsigned int ldlm_timeout = LDLM_TIMEOUT_DEFAULT; /* seconds */
+/* Adaptive timeout defs here instead of ptlrpc module for /proc/sys/ access */
+unsigned int at_min = 0;
+unsigned int at_max = 600;
+unsigned int at_history = 600;
+int at_early_margin = 5;
+int at_extra = 30;
+
+cfs_atomic_t obd_dirty_pages;
+cfs_atomic_t obd_dirty_transit_pages;
+
+cfs_waitq_t obd_race_waitq;
+int obd_race_state;
#ifdef __KERNEL__
-
-unsigned int obd_print_fail_loc(void)
+unsigned long obd_print_fail_loc(void)
{
- CWARN("obd_fail_loc = %x\n", obd_fail_loc);
+ CWARN("obd_fail_loc = %lx\n", obd_fail_loc);
return obd_fail_loc;
}
-
-/* opening /dev/obd */
-static int obd_class_open(struct inode * inode, struct file * file)
-{
- ENTRY;
-
- PORTAL_MODULE_USE;
- RETURN(0);
-}
-
-/* closing /dev/obd */
-static int obd_class_release(struct inode * inode, struct file * file)
-{
- ENTRY;
-
- PORTAL_MODULE_UNUSE;
- RETURN(0);
-}
#endif
static inline void obd_data2conn(struct lustre_handle *conn,
data->ioc_cookie = conn->cookie;
}
-int class_resolve_dev_name(uint32_t len, char *name)
+int class_resolve_dev_name(__u32 len, const char *name)
{
int rc;
int dev;
+ ENTRY;
if (!len || !name) {
CERROR("No name passed,!\n");
GOTO(out, rc = -EINVAL);
{
char *buf = NULL;
struct obd_ioctl_data *data;
- struct portals_debug_ioctl_data *debug_data;
+ struct libcfs_debug_ioctl_data *debug_data;
struct obd_device *obd = NULL;
int err = 0, len = 0;
ENTRY;
- if (current->fsuid != 0)
- RETURN(err = -EACCES);
-
- if ((cmd & 0xffffff00) == ((int)'T') << 8) /* ignore all tty ioctls */
- RETURN(err = -ENOTTY);
-
/* only for debugging */
- if (cmd == PTL_IOC_DEBUG_MASK) {
- debug_data = (struct portals_debug_ioctl_data*)arg;
- portal_subsystem_debug = debug_data->subs;
- portal_debug = debug_data->debug;
+ if (cmd == LIBCFS_IOC_DEBUG_MASK) {
+ debug_data = (struct libcfs_debug_ioctl_data*)arg;
+ libcfs_subsystem_debug = debug_data->subs;
+ libcfs_debug = debug_data->debug;
return 0;
}
- CDEBUG(D_IOCTL, "cmd = %x, obd = %p\n", cmd, obd);
+ CDEBUG(D_IOCTL, "cmd = %x\n", cmd);
if (obd_ioctl_getdata(&buf, &len, (void *)arg)) {
CERROR("OBD ioctl: data error\n");
GOTO(out, err = -EINVAL);
switch (cmd) {
case OBD_IOC_PROCESS_CFG: {
- char *buf;
struct lustre_cfg *lcfg;
if (!data->ioc_plen1 || !data->ioc_pbuf1) {
CERROR("No config buffer passed!\n");
GOTO(out, err = -EINVAL);
}
- err = lustre_cfg_getdata(&buf, data->ioc_plen1,
- data->ioc_pbuf1, 0);
- if (err)
- GOTO(out, err);
- lcfg = (struct lustre_cfg* ) buf;
-
- err = class_process_config(lcfg);
- lustre_cfg_freedata(buf, data->ioc_plen1);
+ OBD_ALLOC(lcfg, data->ioc_plen1);
+ if (lcfg == NULL)
+ GOTO(out, err = -ENOMEM);
+ err = cfs_copy_from_user(lcfg, data->ioc_pbuf1,
+ data->ioc_plen1);
+ if (!err)
+ err = lustre_cfg_sanity_check(lcfg, data->ioc_plen1);
+ if (!err)
+ err = class_process_config(lcfg);
+
+ OBD_FREE(lcfg, data->ioc_plen1);
GOTO(out, err);
}
memcpy(data->ioc_bulk, BUILD_VERSION,
strlen(BUILD_VERSION) + 1);
- err = copy_to_user((void *)arg, data, len);
+ err = obd_ioctl_popdata((void *)arg, data, len);
if (err)
err = -EFAULT;
GOTO(out, err);
if (dev < 0)
GOTO(out, err = -EINVAL);
- err = copy_to_user((void *)arg, data, sizeof(*data));
+ err = obd_ioctl_popdata((void *)arg, data, sizeof(*data));
if (err)
err = -EFAULT;
GOTO(out, err);
CDEBUG(D_IOCTL, "device name %s, dev %d\n", data->ioc_inlbuf1,
dev);
- err = copy_to_user((void *)arg, data, sizeof(*data));
+ err = obd_ioctl_popdata((void *)arg, data, sizeof(*data));
if (err)
err = -EFAULT;
GOTO(out, err);
}
-
case OBD_IOC_CLOSE_UUID: {
- ptl_nid_t peer_nid;
- __u32 peer_nal;
- CDEBUG(D_IOCTL, "closing all connections to uuid %s\n",
+ CDEBUG(D_IOCTL, "closing all connections to uuid %s (NOOP)\n",
data->ioc_inlbuf1);
- lustre_uuid_to_peer(data->ioc_inlbuf1, &peer_nal, &peer_nid);
+ GOTO(out, err = 0);
+ }
+
+ case OBD_IOC_GETDEVICE: {
+ int index = data->ioc_count;
+ char *status, *str;
+
+ if (!data->ioc_inlbuf1) {
+ CERROR("No buffer passed in ioctl\n");
+ GOTO(out, err = -EINVAL);
+ }
+ if (data->ioc_inllen1 < 128) {
+ CERROR("ioctl buffer too small to hold version\n");
+ GOTO(out, err = -EINVAL);
+ }
+
+ obd = class_num2obd(index);
+ if (!obd)
+ GOTO(out, err = -ENOENT);
+
+ if (obd->obd_stopping)
+ status = "ST";
+ else if (obd->obd_set_up)
+ status = "UP";
+ else if (obd->obd_attached)
+ status = "AT";
+ else
+ status = "--";
+ str = (char *)data->ioc_bulk;
+ snprintf(str, len - sizeof(*data), "%3d %s %s %s %s %d",
+ (int)index, status, obd->obd_type->typ_name,
+ obd->obd_name, obd->obd_uuid.uuid,
+ cfs_atomic_read(&obd->obd_refcount));
+ err = obd_ioctl_popdata((void *)arg, data, len);
+
GOTO(out, err = 0);
}
}
- if (data->ioc_dev >= MAX_OBD_DEVICES) {
+ if (data->ioc_dev == OBD_DEV_BY_DEVNAME) {
+ if (data->ioc_inllen4 <= 0 || data->ioc_inlbuf4 == NULL)
+ GOTO(out, err = -EINVAL);
+ if (strnlen(data->ioc_inlbuf4, MAX_OBD_NAME) >= MAX_OBD_NAME)
+ GOTO(out, err = -EINVAL);
+ obd = class_name2obd(data->ioc_inlbuf4);
+ } else if (data->ioc_dev < class_devno_max()) {
+ obd = class_num2obd(data->ioc_dev);
+ } else {
CERROR("OBD ioctl: No device\n");
GOTO(out, err = -EINVAL);
- }
- obd = &obd_dev[data->ioc_dev];
- if (!(obd && obd->obd_set_up) || obd->obd_stopping) {
+ }
+
+ if (obd == NULL) {
+ CERROR("OBD ioctl : No Device %d\n", data->ioc_dev);
+ GOTO(out, err = -EINVAL);
+ }
+ LASSERT(obd->obd_magic == OBD_DEVICE_MAGIC);
+
+ if (!obd->obd_set_up || obd->obd_stopping) {
CERROR("OBD ioctl: device not setup %d \n", data->ioc_dev);
GOTO(out, err = -EINVAL);
}
CERROR("Device %d not attached\n", obd->obd_minor);
GOTO(out, err = -ENODEV);
}
- CDEBUG(D_IOCTL,
- "disabling committed-transno notifications on %d\n",
- obd->obd_minor);
+ CDEBUG(D_HA, "%s: disabling committed-transno notification\n",
+ obd->obd_name);
obd->obd_no_transno = 1;
GOTO(out, err = 0);
}
if (err)
GOTO(out, err);
- err = copy_to_user((void *)arg, data, len);
+ err = obd_ioctl_popdata((void *)arg, data, len);
if (err)
err = -EFAULT;
GOTO(out, err);
-#define OBD_MINOR 241
#ifdef __KERNEL__
-/* to control /dev/obd */
-static int obd_class_ioctl(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg)
-{
- return class_handle_ioctl(cmd, arg);
-}
-
-/* declare character device */
-static struct file_operations obd_psdev_fops = {
- .owner = THIS_MODULE,
- .ioctl = obd_class_ioctl, /* ioctl */
- .open = obd_class_open, /* open */
- .release = obd_class_release, /* release */
-};
-
-/* modules setup */
-static struct miscdevice obd_psdev = {
- .minor = OBD_MINOR,
- .name = "obd_psdev",
- .fops = &obd_psdev_fops,
-};
+extern cfs_psdev_t obd_psdev;
#else
void *obd_psdev = NULL;
#endif
-EXPORT_SYMBOL(obd_dev);
-EXPORT_SYMBOL(obdo_cachep);
-EXPORT_SYMBOL(obd_fail_loc);
+EXPORT_SYMBOL(obd_devs);
EXPORT_SYMBOL(obd_print_fail_loc);
EXPORT_SYMBOL(obd_race_waitq);
+EXPORT_SYMBOL(obd_race_state);
+EXPORT_SYMBOL(obd_debug_peer_on_timeout);
EXPORT_SYMBOL(obd_dump_on_timeout);
-EXPORT_SYMBOL(ldlm_timeout);
+EXPORT_SYMBOL(obd_dump_on_eviction);
EXPORT_SYMBOL(obd_timeout);
-EXPORT_SYMBOL(obd_lustre_upcall);
-EXPORT_SYMBOL(obd_sync_filter);
+EXPORT_SYMBOL(ldlm_timeout);
+EXPORT_SYMBOL(obd_max_dirty_pages);
+EXPORT_SYMBOL(obd_dirty_pages);
+EXPORT_SYMBOL(obd_dirty_transit_pages);
+EXPORT_SYMBOL(at_min);
+EXPORT_SYMBOL(at_max);
+EXPORT_SYMBOL(at_extra);
+EXPORT_SYMBOL(at_early_margin);
+EXPORT_SYMBOL(at_history);
EXPORT_SYMBOL(ptlrpc_put_connection_superhack);
-EXPORT_SYMBOL(ptlrpc_abort_inflight_superhack);
+
EXPORT_SYMBOL(proc_lustre_root);
EXPORT_SYMBOL(class_register_type);
EXPORT_SYMBOL(class_uuid2obd);
EXPORT_SYMBOL(class_find_client_obd);
EXPORT_SYMBOL(class_devices_in_group);
-EXPORT_SYMBOL(__class_export_put);
-EXPORT_SYMBOL(class_new_export);
-EXPORT_SYMBOL(class_unlink_export);
-EXPORT_SYMBOL(class_import_get);
-EXPORT_SYMBOL(class_import_put);
-EXPORT_SYMBOL(class_new_import);
-EXPORT_SYMBOL(class_destroy_import);
-EXPORT_SYMBOL(class_connect);
EXPORT_SYMBOL(class_conn2export);
EXPORT_SYMBOL(class_exp2obd);
EXPORT_SYMBOL(class_conn2obd);
EXPORT_SYMBOL(class_exp2cliimp);
EXPORT_SYMBOL(class_conn2cliimp);
EXPORT_SYMBOL(class_disconnect);
-EXPORT_SYMBOL(class_disconnect_exports);
-EXPORT_SYMBOL(class_disconnect_stale_exports);
-
-EXPORT_SYMBOL(oig_init);
-EXPORT_SYMBOL(oig_release);
-EXPORT_SYMBOL(oig_add_one);
-EXPORT_SYMBOL(oig_wait);
-EXPORT_SYMBOL(oig_complete_one);
+EXPORT_SYMBOL(class_num2obd);
/* uuid.c */
EXPORT_SYMBOL(class_uuid_unparse);
EXPORT_SYMBOL(class_handle_hash);
EXPORT_SYMBOL(class_handle_unhash);
+EXPORT_SYMBOL(class_handle_hash_back);
EXPORT_SYMBOL(class_handle2object);
+EXPORT_SYMBOL(class_handle_free_cb);
-/* config.c */
+/* obd_config.c */
+EXPORT_SYMBOL(class_incref);
+EXPORT_SYMBOL(class_decref);
EXPORT_SYMBOL(class_get_profile);
EXPORT_SYMBOL(class_del_profile);
+EXPORT_SYMBOL(class_del_profiles);
EXPORT_SYMBOL(class_process_config);
-EXPORT_SYMBOL(class_config_process_llog);
+EXPORT_SYMBOL(class_process_proc_param);
+EXPORT_SYMBOL(class_config_parse_llog);
EXPORT_SYMBOL(class_config_dump_llog);
+EXPORT_SYMBOL(class_attach);
+EXPORT_SYMBOL(class_setup);
+EXPORT_SYMBOL(class_cleanup);
+EXPORT_SYMBOL(class_detach);
+EXPORT_SYMBOL(class_manual_cleanup);
/* mea.c */
EXPORT_SYMBOL(mea_name2idx);
EXPORT_SYMBOL(raw_name2idx);
-#ifdef LPROCFS
-int obd_proc_read_version(char *page, char **start, off_t off, int count,
- int *eof, void *data)
+#define OBD_INIT_CHECK
+#ifdef OBD_INIT_CHECK
+int obd_init_checks(void)
{
- *eof = 1;
- return snprintf(page, count, "%s\n", BUILD_VERSION);
-}
+ __u64 u64val, div64val;
+ char buf[64];
+ int len, ret = 0;
-int obd_proc_read_kernel_version(char *page, char **start, off_t off, int count,
- int *eof, void *data)
-{
- *eof = 1;
- return snprintf(page, count, "%u\n", LUSTRE_KERNEL_VERSION);
-}
+ CDEBUG(D_INFO, "LPU64=%s, LPD64=%s, LPX64=%s\n", LPU64, LPD64, LPX64);
-int obd_proc_read_pinger(char *page, char **start, off_t off, int count,
- int *eof, void *data)
-{
- *eof = 1;
- return snprintf(page, count, "%s\n",
-#ifdef ENABLE_PINGER
- "on"
-#else
- "off"
-#endif
- );
-}
-
-#if ENABLE_GSS
-/* FIXME move these staff to proper place */
-int (*lustre_secinit_downcall_handler)(const char *buffer,
- long count) = NULL;
-EXPORT_SYMBOL(lustre_secinit_downcall_handler);
-
-int obd_proc_write_secinit(struct file *file, const char *buffer,
- unsigned long count, void *data)
-{
- int rc = 0;
+ CDEBUG(D_INFO, "OBD_OBJECT_EOF = "LPX64"\n", (__u64)OBD_OBJECT_EOF);
- if (lustre_secinit_downcall_handler) {
- rc = (*lustre_secinit_downcall_handler)((char *)buffer, count);
- if (rc) {
- LASSERT(rc < 0);
- return rc;
- }
+ u64val = OBD_OBJECT_EOF;
+ CDEBUG(D_INFO, "u64val OBD_OBJECT_EOF = "LPX64"\n", u64val);
+ if (u64val != OBD_OBJECT_EOF) {
+ CERROR("__u64 "LPX64"(%d) != 0xffffffffffffffff\n",
+ u64val, (int)sizeof(u64val));
+ ret = -EINVAL;
+ }
+ len = snprintf(buf, sizeof(buf), LPX64, u64val);
+ if (len != 18) {
+ CWARN("LPX64 wrong length! strlen(%s)=%d != 18\n", buf, len);
+ ret = -EINVAL;
}
- return (int)count;
-}
-#endif
-
-/* Root for /proc/fs/lustre */
-struct proc_dir_entry *proc_lustre_root = NULL;
-struct lprocfs_vars lprocfs_base[] = {
- { "version", obd_proc_read_version, NULL, NULL },
- { "kernel_version", obd_proc_read_kernel_version, NULL, NULL },
- { "pinger", obd_proc_read_pinger, NULL, NULL },
-#if ENABLE_GSS
- { "secinit", NULL, obd_proc_write_secinit, NULL },
-#endif
- { 0 }
-};
-
-static void *obd_device_list_seq_start(struct seq_file *p, loff_t*pos)
-{
- if (*pos >= MAX_OBD_DEVICES)
- return NULL;
- return &obd_dev[*pos];
-}
-
-static void obd_device_list_seq_stop(struct seq_file *p, void *v)
-{
-}
-
-static void *obd_device_list_seq_next(struct seq_file *p, void *v, loff_t *pos)
-{
- ++*pos;
- if (*pos >= MAX_OBD_DEVICES)
- return NULL;
- return &obd_dev[*pos];
-}
-
-static int obd_device_list_seq_show(struct seq_file *p, void *v)
-{
- struct obd_device *obd = (struct obd_device *)v;
- int index = obd - &obd_dev[0];
- char *status;
-
- if (!obd->obd_type)
- return 0;
- if (obd->obd_stopping)
- status = "ST";
- else if (obd->obd_set_up)
- status = "UP";
- else if (obd->obd_attached)
- status = "AT";
- else
- status = "--";
-
- return seq_printf(p, "%3d %s %s %s %s %d\n",
- (int)index, status, obd->obd_type->typ_name,
- obd->obd_name, obd->obd_uuid.uuid,
- atomic_read(&obd->obd_refcount));
-}
-
-struct seq_operations obd_device_list_sops = {
- .start = obd_device_list_seq_start,
- .stop = obd_device_list_seq_stop,
- .next = obd_device_list_seq_next,
- .show = obd_device_list_seq_show,
-};
-
-static int obd_device_list_open(struct inode *inode, struct file *file)
-{
- struct proc_dir_entry *dp = PDE(inode);
- struct seq_file *seq;
- int rc = seq_open(file, &obd_device_list_sops);
-
- if (rc)
- return rc;
- seq = file->private_data;
- seq->private = dp->data;
+ div64val = OBD_OBJECT_EOF;
+ CDEBUG(D_INFO, "u64val OBD_OBJECT_EOF = "LPX64"\n", u64val);
+ if (u64val != OBD_OBJECT_EOF) {
+ CERROR("__u64 "LPX64"(%d) != 0xffffffffffffffff\n",
+ u64val, (int)sizeof(u64val));
+ ret = -EOVERFLOW;
+ }
+ if (u64val >> 8 != OBD_OBJECT_EOF >> 8) {
+ CERROR("__u64 "LPX64"(%d) != 0xffffffffffffffff\n",
+ u64val, (int)sizeof(u64val));
+ return -EOVERFLOW;
+ }
+ if (do_div(div64val, 256) != (u64val & 255)) {
+ CERROR("do_div("LPX64",256) != "LPU64"\n", u64val, u64val &255);
+ return -EOVERFLOW;
+ }
+ if (u64val >> 8 != div64val) {
+ CERROR("do_div("LPX64",256) "LPU64" != "LPU64"\n",
+ u64val, div64val, u64val >> 8);
+ return -EOVERFLOW;
+ }
+ len = snprintf(buf, sizeof(buf), LPX64, u64val);
+ if (len != 18) {
+ CWARN("LPX64 wrong length! strlen(%s)=%d != 18\n", buf, len);
+ ret = -EINVAL;
+ }
+ len = snprintf(buf, sizeof(buf), LPU64, u64val);
+ if (len != 20) {
+ CWARN("LPU64 wrong length! strlen(%s)=%d != 20\n", buf, len);
+ ret = -EINVAL;
+ }
+ len = snprintf(buf, sizeof(buf), LPD64, u64val);
+ if (len != 2) {
+ CWARN("LPD64 wrong length! strlen(%s)=%d != 2\n", buf, len);
+ ret = -EINVAL;
+ }
+ if ((u64val & ~CFS_PAGE_MASK) >= CFS_PAGE_SIZE) {
+ CWARN("mask failed: u64val "LPU64" >= "LPU64"\n", u64val,
+ (__u64)CFS_PAGE_SIZE);
+ ret = -EINVAL;
+ }
- return 0;
+ return ret;
}
-
-struct file_operations obd_device_list_fops = {
- .owner = THIS_MODULE,
- .open = obd_device_list_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
-};
+#else
+#define obd_init_checks() do {} while(0)
#endif
+extern cfs_spinlock_t obd_types_lock;
+extern int class_procfs_init(void);
+extern int class_procfs_clean(void);
+
#ifdef __KERNEL__
static int __init init_obdclass(void)
#else
int init_obdclass(void)
#endif
{
- struct obd_device *obd;
-#ifdef LPROCFS
- struct proc_dir_entry *entry;
+ int i, err;
+#ifdef __KERNEL__
+ int lustre_register_fs(void);
+
+ for (i = CAPA_SITE_CLIENT; i < CAPA_SITE_MAX; i++)
+ CFS_INIT_LIST_HEAD(&capa_list[i]);
#endif
- int err;
- int i;
- printk(KERN_INFO "Lustre: OBD class driver Build Version: "
- BUILD_VERSION", info@clusterfs.com\n");
+ LCONSOLE_INFO("OBD class driver, http://www.lustre.org/\n");
+ LCONSOLE_INFO(" Lustre Version: "LUSTRE_VERSION_STRING"\n");
+ LCONSOLE_INFO(" Build Version: "BUILD_VERSION"\n");
+
+ cfs_spin_lock_init(&obd_types_lock);
+ cfs_waitq_init(&obd_race_waitq);
+ obd_zombie_impexp_init();
+#ifdef LPROCFS
+ obd_memory = lprocfs_alloc_stats(OBD_STATS_NUM,
+ LPROCFS_STATS_FLAG_NONE);
+ if (obd_memory == NULL) {
+ CERROR("kmalloc of 'obd_memory' failed\n");
+ RETURN(-ENOMEM);
+ }
+
+ lprocfs_counter_init(obd_memory, OBD_MEMORY_STAT,
+ LPROCFS_CNTR_AVGMINMAX,
+ "memused", "bytes");
+ lprocfs_counter_init(obd_memory, OBD_MEMORY_PAGES_STAT,
+ LPROCFS_CNTR_AVGMINMAX,
+ "pagesused", "pages");
+#endif
+ err = obd_init_checks();
+ if (err == -EOVERFLOW)
+ return err;
class_init_uuidlist();
err = class_handle_init();
if (err)
return err;
- spin_lock_init(&obd_dev_lock);
- INIT_LIST_HEAD(&obd_types);
+ cfs_spin_lock_init(&obd_dev_lock);
+ CFS_INIT_LIST_HEAD(&obd_types);
- err = misc_register(&obd_psdev);
+ err = cfs_psdev_register(&obd_psdev);
if (err) {
- CERROR("cannot register %d err %d\n", OBD_MINOR, err);
+ CERROR("cannot register %d err %d\n", OBD_DEV_MINOR, err);
return err;
}
- /* This struct is already zerod for us (static global) */
- for (i = 0, obd = obd_dev; i < MAX_OBD_DEVICES; i++, obd++)
- obd->obd_minor = i;
+ /* This struct is already zeroed for us (static global) */
+ for (i = 0; i < class_devno_max(); i++)
+ obd_devs[i] = NULL;
+
+ /* Default the dirty page cache cap to 1/2 of system memory.
+ * For clients with less memory, a larger fraction is needed
+ * for other purposes (mostly for BGL). */
+ if (cfs_num_physpages <= 512 << (20 - CFS_PAGE_SHIFT))
+ obd_max_dirty_pages = cfs_num_physpages / 4;
+ else
+ obd_max_dirty_pages = cfs_num_physpages / 2;
err = obd_init_caches();
if (err)
return err;
-
#ifdef __KERNEL__
- obd_sysctl_init();
+ err = class_procfs_init();
+ if (err)
+ return err;
#endif
-#ifdef LPROCFS
- 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) {
- printk(KERN_ERR "LustreError: error registering "
- "/proc/fs/lustre/devices\n");
- lprocfs_remove(proc_lustre_root);
- RETURN(-ENOMEM);
- }
- entry->proc_fops = &obd_device_list_fops;
+ err = lu_global_init();
+ if (err)
+ return err;
+
+#ifdef __KERNEL__
+ err = lustre_register_fs();
#endif
- return 0;
+
+ return err;
}
/* liblustre doesn't call cleanup_obdclass, apparently. we carry on in this
* ifdef to the end of the file to cover module and versioning goo.*/
#ifdef __KERNEL__
-
static void cleanup_obdclass(void)
{
int i;
- int leaked;
+ int lustre_unregister_fs(void);
+ __u64 memory_leaked, pages_leaked;
+ __u64 memory_max, pages_max;
ENTRY;
- misc_deregister(&obd_psdev);
- for (i = 0; i < MAX_OBD_DEVICES; i++) {
- struct obd_device *obd = &obd_dev[i];
- if (obd->obd_type && obd->obd_set_up &&
+ lustre_unregister_fs();
+
+ cfs_psdev_deregister(&obd_psdev);
+ for (i = 0; i < class_devno_max(); i++) {
+ struct obd_device *obd = class_num2obd(i);
+ if (obd && obd->obd_set_up &&
OBT(obd) && OBP(obd, detach)) {
/* XXX should this call generic detach otherwise? */
+ LASSERT(obd->obd_magic == OBD_DEVICE_MAGIC);
OBP(obd, detach)(obd);
}
}
+ lu_global_fini();
obd_cleanup_caches();
obd_sysctl_clean();
-#ifdef LPROCFS
- if (proc_lustre_root) {
- lprocfs_remove(proc_lustre_root);
- proc_lustre_root = NULL;
- }
-#endif
+
+ class_procfs_clean();
class_handle_cleanup();
class_exit_uuidlist();
+ obd_zombie_impexp_stop();
- leaked = atomic_read(&obd_memory);
- CDEBUG(leaked ? D_ERROR : D_INFO,
- "obd mem max: %d leaked: %d\n", obd_memmax, leaked);
+ memory_leaked = obd_memory_sum();
+ pages_leaked = obd_pages_sum();
+
+ memory_max = obd_memory_max();
+ pages_max = obd_pages_max();
+
+ lprocfs_free_stats(&obd_memory);
+ CDEBUG((memory_leaked) ? D_ERROR : D_INFO,
+ "obd_memory max: "LPU64", leaked: "LPU64"\n",
+ memory_max, memory_leaked);
+ CDEBUG((pages_leaked) ? D_ERROR : D_INFO,
+ "obd_memory_pages max: "LPU64", leaked: "LPU64"\n",
+ pages_max, pages_leaked);
EXIT;
}
-/* Check that we're building against the appropriate version of the Lustre
- * kernel patch */
-#include <linux/lustre_version.h>
-#define LUSTRE_MIN_VERSION 500
-#define LUSTRE_MAX_VERSION 500
-#if (LUSTRE_KERNEL_VERSION < LUSTRE_MIN_VERSION)
-# error Cannot continue: Your Lustre kernel patch is older than the sources
-#elif (LUSTRE_KERNEL_VERSION > LUSTRE_MAX_VERSION)
-# error Cannot continue: Your Lustre sources are older than the kernel patch
-#endif
-
-MODULE_AUTHOR("Cluster File Systems, Inc. <info@clusterfs.com>");
+MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
MODULE_DESCRIPTION("Lustre Class Driver Build Version: " BUILD_VERSION);
MODULE_LICENSE("GPL");
-module_init(init_obdclass);
-module_exit(cleanup_obdclass);
+cfs_module(obdclass, LUSTRE_VERSION_STRING, init_obdclass, cleanup_obdclass);
#endif
git://git.whamcloud.com / fs / lustre-release.git / blobdiff