-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
+/*
+ * GPL HEADER START
*
- * Copyright (C) 2001, 2002 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.gnu.org/licenses/gpl-2.0.html
*
- * 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.
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
*
+ * Copyright (c) 2011, 2015, Intel Corporation.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
*/
#include <linux/module.h>
-#include <linux/autoconf.h>
-#include <linux/sysctl.h>
#include <linux/sched.h>
#include <linux/mm.h>
-#include <linux/sysctl.h>
-#include <linux/version.h>
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
-#include <linux/swapctl.h>
-#endif
-#include <linux/proc_fs.h>
#include <linux/slab.h>
#include <linux/stat.h>
#include <linux/ctype.h>
-#include <asm/bitops.h>
-#include <asm/segment.h>
-#include <asm/uaccess.h>
+#include <linux/bitops.h>
+#include <linux/uaccess.h>
#include <linux/utsname.h>
#define DEBUG_SUBSYSTEM S_CLASS
#include <obd_support.h>
+#include <lprocfs_status.h>
+#include <obd_class.h>
-struct ctl_table_header *obd_table_header = NULL;
+struct static_lustre_uintvalue_attr {
+ struct {
+ struct attribute attr;
+ ssize_t (*show)(struct kobject *kobj, struct attribute *attr,
+ char *buf);
+ ssize_t (*store)(struct kobject *kobj, struct attribute *attr,
+ const char *buf, size_t len);
+ } u;
+ int *value;
+};
-#define OBD_SYSCTL 300
+static ssize_t static_uintvalue_show(struct kobject *kobj,
+ struct attribute *attr,
+ char *buf)
+{
+ struct static_lustre_uintvalue_attr *lattr = (void *)attr;
-enum {
- OBD_FAIL_LOC = 1, /* control test failures instrumentation */
- OBD_TIMEOUT, /* RPC timeout before recovery/intr */
- OBD_DUMP_ON_TIMEOUT, /* dump kernel debug log upon eviction */
- OBD_MEMUSED, /* bytes currently OBD_ALLOCated */
- OBD_SYNCFILTER, /* XXX temporary, as we play with sync osts.. */
- OBD_LDLM_TIMEOUT, /* LDLM timeout for ASTs before client eviction */
- OBD_DUMP_ON_EVICTION, /* dump kernel debug log upon eviction */
- OBD_DEBUG_PEER_ON_TIMEOUT, /* dump peer debug when RPC times out */
-};
+ return sprintf(buf, "%d\n", *lattr->value);
+}
-int LL_PROC_PROTO(proc_fail_loc)
+static ssize_t static_uintvalue_store(struct kobject *kobj,
+ struct attribute *attr,
+ const char *buffer, size_t count)
{
- int rc;
- int old_fail_loc = obd_fail_loc;
+ struct static_lustre_uintvalue_attr *lattr = (void *)attr;
+ unsigned int val;
+ int rc;
+
+ rc = kstrtouint(buffer, 10, &val);
+ if (rc)
+ return rc;
- rc = ll_proc_dointvec(table, write, filp, buffer, lenp, ppos);
- if (old_fail_loc != obd_fail_loc)
- wake_up(&obd_race_waitq);
- return rc;
+ *lattr->value = val;
+
+ return count;
+}
+
+#define LUSTRE_STATIC_UINT_ATTR(name, value) \
+static struct static_lustre_uintvalue_attr lustre_sattr_##name = \
+ {__ATTR(name, 0644, \
+ static_uintvalue_show, \
+ static_uintvalue_store),\
+ value }
+
+LUSTRE_STATIC_UINT_ATTR(timeout, &obd_timeout);
+
+static ssize_t max_dirty_mb_show(struct kobject *kobj, struct attribute *attr,
+ char *buf)
+{
+ return sprintf(buf, "%lu\n",
+ obd_max_dirty_pages / (1 << (20 - PAGE_SHIFT)));
}
-int LL_PROC_PROTO(proc_set_timeout)
+static ssize_t max_dirty_mb_store(struct kobject *kobj, struct attribute *attr,
+ const char *buffer, size_t count)
{
- int rc;
+ unsigned long val;
+ int rc;
+
+ rc = kstrtoul(buffer, 10, &val);
+ if (rc)
+ return rc;
+
+ val *= 1 << (20 - PAGE_SHIFT); /* convert to pages */
- rc = ll_proc_dointvec(table, write, filp, buffer, lenp, ppos);
- if (ldlm_timeout >= obd_timeout)
- ldlm_timeout = max(obd_timeout / 3, 1U);
- return rc;
+ if (val > ((totalram_pages / 10) * 9)) {
+ /* Somebody wants to assign too much memory to dirty pages */
+ return -EINVAL;
+ }
+
+ if (val < 4 << (20 - PAGE_SHIFT)) {
+ /* Less than 4 Mb for dirty cache is also bad */
+ return -EINVAL;
+ }
+
+ obd_max_dirty_pages = val;
+
+ return count;
}
+LUSTRE_RW_ATTR(max_dirty_mb);
+
+LUSTRE_STATIC_UINT_ATTR(debug_peer_on_timeout, &obd_debug_peer_on_timeout);
+LUSTRE_STATIC_UINT_ATTR(dump_on_timeout, &obd_dump_on_timeout);
+LUSTRE_STATIC_UINT_ATTR(dump_on_eviction, &obd_dump_on_eviction);
+LUSTRE_STATIC_UINT_ATTR(at_min, &at_min);
+LUSTRE_STATIC_UINT_ATTR(at_max, &at_max);
+LUSTRE_STATIC_UINT_ATTR(at_extra, &at_extra);
+LUSTRE_STATIC_UINT_ATTR(at_early_margin, &at_early_margin);
+LUSTRE_STATIC_UINT_ATTR(at_history, &at_history);
-static ctl_table obd_table[] = {
- {OBD_FAIL_LOC, "fail_loc", &obd_fail_loc, sizeof(int), 0644, NULL,
- &proc_fail_loc},
- {OBD_TIMEOUT, "timeout", &obd_timeout, sizeof(int), 0644, NULL,
- &proc_set_timeout},
- {OBD_DEBUG_PEER_ON_TIMEOUT, "debug_peer_on_timeout",
- &obd_debug_peer_on_timeout,
- sizeof(int), 0644, NULL, &proc_dointvec},
- {OBD_DUMP_ON_TIMEOUT, "dump_on_timeout", &obd_dump_on_timeout,
- sizeof(int), 0644, NULL, &proc_dointvec},
- {OBD_DUMP_ON_EVICTION, "dump_on_eviction", &obd_dump_on_eviction,
- sizeof(int), 0644, NULL, &proc_dointvec},
- {OBD_MEMUSED, "memused", (int *)&obd_memory.counter,
- sizeof(int), 0644, NULL, &proc_dointvec},
- {OBD_LDLM_TIMEOUT, "ldlm_timeout", &ldlm_timeout, sizeof(int), 0644,
- NULL, &proc_set_timeout},
- { 0 }
+#ifdef HAVE_SERVER_SUPPORT
+LUSTRE_STATIC_UINT_ATTR(ldlm_timeout, &ldlm_timeout);
+LUSTRE_STATIC_UINT_ATTR(bulk_timeout, &bulk_timeout);
+#endif
+
+static ssize_t memused_show(struct kobject *kobj, struct attribute *attr,
+ char *buf)
+{
+ return sprintf(buf, "%llu\n", obd_memory_sum());
+}
+LUSTRE_RO_ATTR(memused);
+
+static ssize_t memused_max_show(struct kobject *kobj, struct attribute *attr,
+ char *buf)
+{
+ return sprintf(buf, "%llu\n", obd_memory_max());
+}
+LUSTRE_RO_ATTR(memused_max);
+
+static struct attribute *lustre_attrs[] = {
+ &lustre_sattr_timeout.u.attr,
+ &lustre_attr_max_dirty_mb.attr,
+ &lustre_sattr_debug_peer_on_timeout.u.attr,
+ &lustre_sattr_dump_on_timeout.u.attr,
+ &lustre_sattr_dump_on_eviction.u.attr,
+ &lustre_sattr_at_min.u.attr,
+ &lustre_sattr_at_max.u.attr,
+ &lustre_sattr_at_extra.u.attr,
+ &lustre_sattr_at_early_margin.u.attr,
+ &lustre_sattr_at_history.u.attr,
+ &lustre_attr_memused_max.attr,
+ &lustre_attr_memused.attr,
+#ifdef HAVE_SERVER_SUPPORT
+ &lustre_sattr_ldlm_timeout.u.attr,
+ &lustre_sattr_bulk_timeout.u.attr,
+#endif
+ NULL,
};
-static ctl_table parent_table[] = {
- {OBD_SYSCTL, "lustre", NULL, 0, 0555, obd_table},
- {0}
+static struct attribute_group lustre_attr_group = {
+ .attrs = lustre_attrs,
};
-void obd_sysctl_init (void)
+int obd_sysctl_init(void)
{
-#ifdef CONFIG_SYSCTL
- if ( !obd_table_header )
- obd_table_header = register_sysctl_table(parent_table, 0);
-#endif
+ return sysfs_create_group(lustre_kobj, &lustre_attr_group);
}
-void obd_sysctl_clean (void)
+void obd_sysctl_clean(void)
{
-#ifdef CONFIG_SYSCTL
- if ( obd_table_header )
- unregister_sysctl_table(obd_table_header);
- obd_table_header = NULL;
-#endif
+ sysfs_remove_group(lustre_kobj, &lustre_attr_group);
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff