-/* -*- 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.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.
*
+ * 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/utsname.h>
#define DEBUG_SUBSYSTEM S_CLASS
#include <obd_support.h>
+#include <lprocfs_status.h>
+#include <obd_class.h>
-cfs_sysctl_table_header_t *obd_table_header = NULL;
-
-#define OBD_SYSCTL 300
-
-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 */
-};
+#ifdef CONFIG_SYSCTL
+static struct ctl_table_header *obd_table_header;
+#endif
-int LL_PROC_PROTO(proc_fail_loc)
+static int
+proc_set_timeout(struct ctl_table *table, int write, void __user *buffer,
+ size_t *lenp, loff_t *ppos)
{
int rc;
- int old_fail_loc = obd_fail_loc;
- rc = ll_proc_dointvec(table, write, filp, buffer, lenp, ppos);
- if (old_fail_loc != obd_fail_loc)
- wake_up(&obd_race_waitq);
+ rc = proc_dointvec(table, write, buffer, lenp, ppos);
+ if (ldlm_timeout >= obd_timeout)
+ ldlm_timeout = max(obd_timeout / 3, 1U);
return rc;
}
-int LL_PROC_PROTO(proc_set_timeout)
+static int
+proc_memory_alloc(struct ctl_table *table, int write, void __user *buffer,
+ size_t *lenp, loff_t *ppos)
{
- int rc;
+ char buf[22];
+ int len;
- 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 (!*lenp || (*ppos && !write)) {
+ *lenp = 0;
+ return 0;
+ }
+ if (write)
+ return -EINVAL;
+
+ len = snprintf(buf, sizeof(buf), LPU64"\n", obd_memory_sum());
+ if (len > *lenp)
+ len = *lenp;
+ buf[len] = '\0';
+ if (copy_to_user(buffer, buf, len))
+ return -EFAULT;
+ *lenp = len;
+ *ppos += *lenp;
+ return 0;
}
-static cfs_sysctl_table_t obd_table[] = {
- {
- .ctl_name = OBD_FAIL_LOC,
- .procname = "fail_loc",
- .data = &obd_fail_loc,
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = &proc_fail_loc
- },
- {
- .ctl_name = OBD_TIMEOUT,
- .procname = "timeout",
- .data = &obd_timeout,
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = &proc_set_timeout
- },
- {
- .ctl_name = OBD_DEBUG_PEER_ON_TIMEOUT,
- .procname = "debug_peer_on_timeout",
- .data = &obd_debug_peer_on_timeout,
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = &proc_dointvec
- },
- {
- .ctl_name = OBD_DUMP_ON_TIMEOUT,
- .procname = "dump_on_timeout",
- .data = &obd_dump_on_timeout,
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = &proc_dointvec
- },
- {
- .ctl_name = OBD_DUMP_ON_EVICTION,
- .procname = "dump_on_eviction",
- .data = &obd_dump_on_eviction,
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = &proc_dointvec
- },
- {
- .ctl_name = OBD_MEMUSED,
- .procname = "memused",
- .data = (int *)&obd_memory.counter,
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = &proc_dointvec
- },
- {
- .ctl_name = OBD_LDLM_TIMEOUT,
- .procname = "ldlm_timeout",
- .data = &ldlm_timeout,
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = &proc_set_timeout
- },
- { 0 }
+static int
+proc_mem_max(struct ctl_table *table, int write, void __user *buffer,
+ size_t *lenp, loff_t *ppos)
+{
+ char buf[22];
+ int len;
+
+ if (!*lenp || (*ppos && !write)) {
+ *lenp = 0;
+ return 0;
+ }
+ if (write)
+ return -EINVAL;
+
+ len = snprintf(buf, sizeof(buf), LPU64"\n", obd_memory_max());
+ if (len > *lenp)
+ len = *lenp;
+ buf[len] = '\0';
+ if (copy_to_user(buffer, buf, len))
+ return -EFAULT;
+ *lenp = len;
+ *ppos += *lenp;
+ return 0;
+}
+
+static int
+proc_max_dirty_pages_in_mb(struct ctl_table *table, int write,
+ void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+ __s64 val;
+ int rc = 0;
+
+ if (!table->data || !table->maxlen || !*lenp || (*ppos && !write)) {
+ *lenp = 0;
+ return 0;
+ }
+ if (write) {
+ rc = lprocfs_str_with_units_to_s64(buffer, *lenp, &val, 'M');
+ if (rc)
+ return rc;
+
+ if (val < 0)
+ return -ERANGE;
+
+ val >>= PAGE_CACHE_SHIFT;
+
+ /* Don't allow them to let dirty pages exceed 90% of system
+ * memory and set a hard minimum of 4MB. */
+ if (val > ((totalram_pages / 10) * 9)) {
+ CERROR("Refusing to set max dirty pages to "LPD64", "
+ "which is more than 90%% of available RAM; "
+ "setting to %lu\n", val,
+ ((totalram_pages / 10) * 9));
+ obd_max_dirty_pages = ((totalram_pages / 10) * 9);
+ } else if (val < 4 << (20 - PAGE_CACHE_SHIFT)) {
+ obd_max_dirty_pages = 4 << (20 - PAGE_CACHE_SHIFT);
+ } else {
+ obd_max_dirty_pages = val;
+ }
+ } else {
+ char buf[21];
+ int len;
+
+ len = lprocfs_read_frac_helper(buf, sizeof(buf),
+ *(unsigned long *)table->data,
+ 1 << (20 - PAGE_CACHE_SHIFT));
+ if (len > *lenp)
+ len = *lenp;
+ buf[len] = '\0';
+ if (copy_to_user(buffer, buf, len))
+ return -EFAULT;
+ *lenp = len;
+ }
+ *ppos += *lenp;
+ return rc;
+}
+
+#ifdef CONFIG_SYSCTL
+static struct ctl_table obd_table[] = {
+ {
+ INIT_CTL_NAME
+ .procname = "timeout",
+ .data = &obd_timeout,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_set_timeout
+ },
+ {
+ INIT_CTL_NAME
+ .procname = "debug_peer_on_timeout",
+ .data = &obd_debug_peer_on_timeout,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec
+ },
+ {
+ INIT_CTL_NAME
+ .procname = "dump_on_timeout",
+ .data = &obd_dump_on_timeout,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec
+ },
+ {
+ INIT_CTL_NAME
+ .procname = "dump_on_eviction",
+ .data = &obd_dump_on_eviction,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec
+ },
+ {
+ INIT_CTL_NAME
+ .procname = "memused",
+ .data = NULL,
+ .maxlen = 0,
+ .mode = 0444,
+ .proc_handler = &proc_memory_alloc
+ },
+ {
+ INIT_CTL_NAME
+ .procname = "memused_max",
+ .data = NULL,
+ .maxlen = 0,
+ .mode = 0444,
+ .proc_handler = &proc_mem_max
+ },
+ {
+ INIT_CTL_NAME
+ .procname = "ldlm_timeout",
+ .data = &ldlm_timeout,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_set_timeout
+ },
+ {
+ INIT_CTL_NAME
+ .procname = "max_dirty_mb",
+ .data = &obd_max_dirty_pages,
+ .maxlen = sizeof(unsigned long),
+ .mode = 0644,
+ .proc_handler = &proc_max_dirty_pages_in_mb
+ },
+ {
+ INIT_CTL_NAME
+ .procname = "bulk_timeout",
+ .data = &bulk_timeout,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec
+ },
+ {
+ INIT_CTL_NAME
+ .procname = "at_min",
+ .data = &at_min,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec
+ },
+ {
+ INIT_CTL_NAME
+ .procname = "at_max",
+ .data = &at_max,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec
+ },
+ {
+ INIT_CTL_NAME
+ .procname = "at_extra",
+ .data = &at_extra,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec
+ },
+ {
+ INIT_CTL_NAME
+ .procname = "at_early_margin",
+ .data = &at_early_margin,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec
+ },
+ {
+ INIT_CTL_NAME
+ .procname = "at_history",
+ .data = &at_history,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec
+ },
+ { 0 }
};
-static cfs_sysctl_table_t parent_table[] = {
- {
- .ctl_name = OBD_SYSCTL,
- .procname = "lustre",
- .data = NULL,
- .maxlen = 0,
- .mode = 0555,
- .child = obd_table
- },
- {0}
+static struct ctl_table parent_table[] = {
+ {
+ INIT_CTL_NAME
+ .procname = "lustre",
+ .data = NULL,
+ .maxlen = 0,
+ .mode = 0555,
+ .child = obd_table
+ },
+ { 0 }
};
+#endif
void obd_sysctl_init (void)
{
#ifdef CONFIG_SYSCTL
- if ( !obd_table_header )
- obd_table_header = cfs_register_sysctl_table(parent_table, 0);
+ if ( !obd_table_header )
+ obd_table_header = register_sysctl_table(parent_table);
#endif
}
void obd_sysctl_clean (void)
{
#ifdef CONFIG_SYSCTL
- if ( obd_table_header )
- cfs_unregister_sysctl_table(obd_table_header);
- obd_table_header = NULL;
+ if ( obd_table_header )
+ unregister_sysctl_table(obd_table_header);
+ obd_table_header = NULL;
#endif
}