/* -*- 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 the Lustre file system, http://www.lustre.org
- * Lustre is a trademark of 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.
*
- * 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.
+ * 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).
*
- * 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.
+ * 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
*
- * 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.
+ * 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
unsigned int ldlm_timeout = LDLM_TIMEOUT_DEFAULT; /* seconds */
unsigned int obd_max_dirty_pages = 256;
atomic_t obd_dirty_pages;
+atomic_t obd_dirty_transit_pages;
cfs_waitq_t obd_race_waitq;
int obd_race_state;
return obd_fail_loc;
}
-void obd_set_fail_loc(unsigned int fl)
-{
- obd_fail_loc = fl;
-}
-
/* opening /dev/obd */
static int obd_class_open(unsigned long flags, void *args)
{
CERROR("ioctl buffer too small to hold version\n");
GOTO(out, err = -EINVAL);
}
-
+
obd = class_num2obd(index);
if (!obd)
GOTO(out, err = -ENOENT);
}
- if (data->ioc_dev >= class_devno_max()) {
+ 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 = class_num2obd(data->ioc_dev);
if (obd == NULL) {
CERROR("OBD ioctl : No Device %d\n", data->ioc_dev);
GOTO(out, err = -EINVAL);
EXPORT_SYMBOL(ldlm_timeout);
EXPORT_SYMBOL(obd_max_dirty_pages);
EXPORT_SYMBOL(obd_dirty_pages);
+EXPORT_SYMBOL(obd_dirty_transit_pages);
EXPORT_SYMBOL(ptlrpc_put_connection_superhack);
EXPORT_SYMBOL(proc_lustre_root);
EXPORT_SYMBOL(class_uuid2dev);
EXPORT_SYMBOL(class_uuid2obd);
EXPORT_SYMBOL(class_find_client_obd);
-EXPORT_SYMBOL(class_find_client_notype);
EXPORT_SYMBOL(class_devices_in_group);
EXPORT_SYMBOL(class_conn2export);
EXPORT_SYMBOL(class_exp2obd);
#ifdef __KERNEL__
int lustre_register_fs(void);
- printk(KERN_INFO "Lustre: OBD class driver, info@clusterfs.com\n");
- printk(KERN_INFO " Lustre Version: "LUSTRE_VERSION_STRING"\n");
- printk(KERN_INFO " Build Version: "BUILD_VERSION"\n");
-
for (i = CAPA_SITE_CLIENT; i < CAPA_SITE_MAX; i++)
CFS_INIT_LIST_HEAD(&capa_list[i]);
-#else
- CDEBUG(D_INFO, "Lustre: OBD class driver, info@clusterfs.com\n");
- CDEBUG(D_INFO, " Lustre Version: "LUSTRE_VERSION_STRING"\n");
- CDEBUG(D_INFO, " Build Version: "BUILD_VERSION"\n");
#endif
+ 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");
+
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_PERCPU);
+ 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,
+ LPROCFS_CNTR_AVGMINMAX,
"memused", "bytes");
lprocfs_counter_init(obd_memory, OBD_MEMORY_PAGES_STAT,
- LPROCFS_CNTR_AVGMINMAX,
+ LPROCFS_CNTR_AVGMINMAX,
"pagesused", "pages");
#endif
err = obd_init_checks();
return err;
}
- /* This struct is already zerod for us (static global) */
+ /* 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 */
- obd_max_dirty_pages = num_physpages / 2;
+ /* 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 (num_physpages <= 512 << (20 - CFS_PAGE_SHIFT))
+ obd_max_dirty_pages = num_physpages / 4;
+ else
+ obd_max_dirty_pages = num_physpages / 2;
err = obd_init_caches();
if (err)
return err;
#ifdef __KERNEL__
- err = lu_global_init();
+ err = class_procfs_init();
if (err)
return err;
- err = class_procfs_init();
+#endif
+
+ err = lu_global_init();
if (err)
return err;
+
+#ifdef __KERNEL__
err = lustre_register_fs();
#endif
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);
- if (memory_leaked > 0) {
- CWARN("Memory leaks detected (max "LPU64", leaked "LPD64")\n",
- memory_max, memory_leaked);
- }
- if (pages_leaked > 0) {
- CWARN("Page leaks detected (max "LPU64", leaked "LPU64")\n",
- pages_max, pages_leaked);
- }
-
+ 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;
}
-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");
git://git.whamcloud.com / fs / lustre-release.git / blobdiff