-/* -*- 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, Whamcloud, Inc.
+ */
+/*
+ * 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>
-struct ctl_table_header *obd_table_header = NULL;
+#ifdef CONFIG_SYSCTL
+cfs_sysctl_table_header_t *obd_table_header = NULL;
+#endif
+
+#ifndef HAVE_SYSCTL_UNNUMBERED
#define OBD_SYSCTL 300
enum {
- OBD_FAIL_LOC = 1, /* control test failures instrumentation */
- OBD_TIMEOUT, /* RPC timeout before recovery/intr */
+ OBD_TIMEOUT = 3, /* RPC timeout before recovery/intr */
OBD_DUMP_ON_TIMEOUT, /* dump kernel debug log upon eviction */
OBD_MEMUSED, /* bytes currently OBD_ALLOCated */
+ OBD_PAGESUSED, /* pages currently OBD_PAGE_ALLOCated */
+ OBD_MAXMEMUSED, /* maximum bytes OBD_ALLOCated concurrently */
+ OBD_MAXPAGESUSED, /* maximum pages OBD_PAGE_ALLOCated concurrently */
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 */
+ OBD_ALLOC_FAIL_RATE, /* memory allocation random failure rate */
+ OBD_MAX_DIRTY_PAGES, /* maximum dirty pages */
+ OBD_AT_MIN, /* Adaptive timeouts params */
+ OBD_AT_MAX,
+ OBD_AT_EXTRA,
+ OBD_AT_EARLY_MARGIN,
+ OBD_AT_HISTORY,
};
-int LL_PROC_PROTO(proc_fail_loc)
-{
- int rc;
- int old_fail_loc = obd_fail_loc;
+#else
- rc = ll_proc_dointvec(table, write, filp, buffer, lenp, ppos);
- if (old_fail_loc != obd_fail_loc)
- wake_up(&obd_race_waitq);
- return rc;
-}
+#define OBD_SYSCTL CTL_UNNUMBERED
+
+#define OBD_FAIL_LOC CTL_UNNUMBERED
+#define OBD_FAIL_VAL CTL_UNNUMBERED
+#define OBD_TIMEOUT CTL_UNNUMBERED
+#define OBD_DUMP_ON_TIMEOUT CTL_UNNUMBERED
+#define OBD_MEMUSED CTL_UNNUMBERED
+#define OBD_PAGESUSED CTL_UNNUMBERED
+#define OBD_MAXMEMUSED CTL_UNNUMBERED
+#define OBD_MAXPAGESUSED CTL_UNNUMBERED
+#define OBD_SYNCFILTER CTL_UNNUMBERED
+#define OBD_LDLM_TIMEOUT CTL_UNNUMBERED
+#define OBD_DUMP_ON_EVICTION CTL_UNNUMBERED
+#define OBD_DEBUG_PEER_ON_TIMEOUT CTL_UNNUMBERED
+#define OBD_ALLOC_FAIL_RATE CTL_UNNUMBERED
+#define OBD_MAX_DIRTY_PAGES CTL_UNNUMBERED
+#define OBD_AT_MIN CTL_UNNUMBERED
+#define OBD_AT_MAX CTL_UNNUMBERED
+#define OBD_AT_EXTRA CTL_UNNUMBERED
+#define OBD_AT_EARLY_MARGIN CTL_UNNUMBERED
+#define OBD_AT_HISTORY CTL_UNNUMBERED
+
+#endif
int LL_PROC_PROTO(proc_set_timeout)
{
return rc;
}
-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 }
+int LL_PROC_PROTO(proc_memory_alloc)
+{
+ char buf[22];
+ int len;
+ DECLARE_LL_PROC_PPOS_DECL;
+
+ 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 (cfs_copy_to_user(buffer, buf, len))
+ return -EFAULT;
+ *lenp = len;
+ *ppos += *lenp;
+ return 0;
+}
+
+int LL_PROC_PROTO(proc_pages_alloc)
+{
+ char buf[22];
+ int len;
+ DECLARE_LL_PROC_PPOS_DECL;
+
+ if (!*lenp || (*ppos && !write)) {
+ *lenp = 0;
+ return 0;
+ }
+ if (write)
+ return -EINVAL;
+
+ len = snprintf(buf, sizeof(buf), LPU64"\n", obd_pages_sum());
+ if (len > *lenp)
+ len = *lenp;
+ buf[len] = '\0';
+ if (cfs_copy_to_user(buffer, buf, len))
+ return -EFAULT;
+ *lenp = len;
+ *ppos += *lenp;
+ return 0;
+}
+
+int LL_PROC_PROTO(proc_mem_max)
+{
+ char buf[22];
+ int len;
+ DECLARE_LL_PROC_PPOS_DECL;
+
+ 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 (cfs_copy_to_user(buffer, buf, len))
+ return -EFAULT;
+ *lenp = len;
+ *ppos += *lenp;
+ return 0;
+}
+
+int LL_PROC_PROTO(proc_pages_max)
+{
+ char buf[22];
+ int len;
+ DECLARE_LL_PROC_PPOS_DECL;
+
+ if (!*lenp || (*ppos && !write)) {
+ *lenp = 0;
+ return 0;
+ }
+ if (write)
+ return -EINVAL;
+
+ len = snprintf(buf, sizeof(buf), LPU64"\n", obd_pages_max());
+ if (len > *lenp)
+ len = *lenp;
+ buf[len] = '\0';
+ if (cfs_copy_to_user(buffer, buf, len))
+ return -EFAULT;
+ *lenp = len;
+ *ppos += *lenp;
+ return 0;
+}
+
+int LL_PROC_PROTO(proc_max_dirty_pages_in_mb)
+{
+ int rc = 0;
+ DECLARE_LL_PROC_PPOS_DECL;
+
+ if (!table->data || !table->maxlen || !*lenp || (*ppos && !write)) {
+ *lenp = 0;
+ return 0;
+ }
+ if (write) {
+ rc = lprocfs_write_frac_helper(buffer, *lenp,
+ (unsigned int*)table->data,
+ 1 << (20 - CFS_PAGE_SHIFT));
+ /* Don't allow them to let dirty pages exceed 90% of system
+ * memory and set a hard minimum of 4MB. */
+ if (obd_max_dirty_pages > ((cfs_num_physpages / 10) * 9)) {
+ CERROR("Refusing to set max dirty pages to %u, which "
+ "is more than 90%% of available RAM; setting "
+ "to %lu\n", obd_max_dirty_pages,
+ ((cfs_num_physpages / 10) * 9));
+ obd_max_dirty_pages = ((cfs_num_physpages / 10) * 9);
+ } else if (obd_max_dirty_pages < 4 << (20 - CFS_PAGE_SHIFT)) {
+ obd_max_dirty_pages = 4 << (20 - CFS_PAGE_SHIFT);
+ }
+ } else {
+ char buf[21];
+ int len;
+
+ len = lprocfs_read_frac_helper(buf, sizeof(buf),
+ *(unsigned int*)table->data,
+ 1 << (20 - CFS_PAGE_SHIFT));
+ if (len > *lenp)
+ len = *lenp;
+ buf[len] = '\0';
+ if (cfs_copy_to_user(buffer, buf, len))
+ return -EFAULT;
+ *lenp = len;
+ }
+ *ppos += *lenp;
+ return rc;
+}
+
+#ifdef RANDOM_FAIL_ALLOC
+int LL_PROC_PROTO(proc_alloc_fail_rate)
+{
+ int rc = 0;
+ DECLARE_LL_PROC_PPOS_DECL;
+
+ if (!table->data || !table->maxlen || !*lenp || (*ppos && !write)) {
+ *lenp = 0;
+ return 0;
+ }
+ if (write) {
+ rc = lprocfs_write_frac_helper(buffer, *lenp,
+ (unsigned int*)table->data,
+ OBD_ALLOC_FAIL_MULT);
+ } else {
+ char buf[21];
+ int len;
+
+ len = lprocfs_read_frac_helper(buf, 21,
+ *(unsigned int*)table->data,
+ OBD_ALLOC_FAIL_MULT);
+ if (len > *lenp)
+ len = *lenp;
+ buf[len] = '\0';
+ if (cfs_copy_to_user(buffer, buf, len))
+ return -EFAULT;
+ *lenp = len;
+ }
+ *ppos += *lenp;
+ return rc;
+}
+#endif
+
+int LL_PROC_PROTO(proc_at_min)
+{
+ return ll_proc_dointvec(table, write, filp, buffer, lenp, ppos);
+}
+int LL_PROC_PROTO(proc_at_max)
+{
+ return ll_proc_dointvec(table, write, filp, buffer, lenp, ppos);
+}
+int LL_PROC_PROTO(proc_at_extra)
+{
+ return ll_proc_dointvec(table, write, filp, buffer, lenp, ppos);
+}
+int LL_PROC_PROTO(proc_at_early_margin)
+{
+ return ll_proc_dointvec(table, write, filp, buffer, lenp, ppos);
+}
+int LL_PROC_PROTO(proc_at_history)
+{
+ return ll_proc_dointvec(table, write, filp, buffer, lenp, ppos);
+}
+
+#ifdef CONFIG_SYSCTL
+static cfs_sysctl_table_t obd_table[] = {
+ {
+ INIT_CTL_NAME(OBD_TIMEOUT)
+ .procname = "timeout",
+ .data = &obd_timeout,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_set_timeout
+ },
+ {
+ INIT_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
+ },
+ {
+ INIT_CTL_NAME(OBD_DUMP_ON_TIMEOUT)
+ .procname = "dump_on_timeout",
+ .data = &obd_dump_on_timeout,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec
+ },
+ {
+ INIT_CTL_NAME(OBD_DUMP_ON_EVICTION)
+ .procname = "dump_on_eviction",
+ .data = &obd_dump_on_eviction,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec
+ },
+ {
+ INIT_CTL_NAME(OBD_MEMUSED)
+ .procname = "memused",
+ .data = NULL,
+ .maxlen = 0,
+ .mode = 0444,
+ .proc_handler = &proc_memory_alloc
+ },
+ {
+ INIT_CTL_NAME(OBD_PAGESUSED)
+ .procname = "pagesused",
+ .data = NULL,
+ .maxlen = 0,
+ .mode = 0444,
+ .proc_handler = &proc_pages_alloc
+ },
+ {
+ INIT_CTL_NAME(OBD_MAXMEMUSED)
+ .procname = "memused_max",
+ .data = NULL,
+ .maxlen = 0,
+ .mode = 0444,
+ .proc_handler = &proc_mem_max
+ },
+ {
+ INIT_CTL_NAME(OBD_MAXPAGESUSED)
+ .procname = "pagesused_max",
+ .data = NULL,
+ .maxlen = 0,
+ .mode = 0444,
+ .proc_handler = &proc_pages_max
+ },
+ {
+ INIT_CTL_NAME(OBD_LDLM_TIMEOUT)
+ .procname = "ldlm_timeout",
+ .data = &ldlm_timeout,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_set_timeout
+ },
+#ifdef RANDOM_FAIL_ALLOC
+ {
+ INIT_CTL_NAME(OBD_ALLOC_FAIL_RATE)
+ .procname = "alloc_fail_rate",
+ .data = &obd_alloc_fail_rate,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_alloc_fail_rate
+ },
+#endif
+ {
+ INIT_CTL_NAME(OBD_MAX_DIRTY_PAGES)
+ .procname = "max_dirty_mb",
+ .data = &obd_max_dirty_pages,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_max_dirty_pages_in_mb
+ },
+ {
+ INIT_CTL_NAME(OBD_AT_MIN)
+ .procname = "at_min",
+ .data = &at_min,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_at_min
+ },
+ {
+ INIT_CTL_NAME(OBD_AT_MAX)
+ .procname = "at_max",
+ .data = &at_max,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_at_max
+ },
+ {
+ INIT_CTL_NAME(OBD_AT_EXTRA)
+ .procname = "at_extra",
+ .data = &at_extra,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_at_extra
+ },
+ {
+ INIT_CTL_NAME(OBD_AT_EARLY_MARGIN)
+ .procname = "at_early_margin",
+ .data = &at_early_margin,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_at_early_margin
+ },
+ {
+ INIT_CTL_NAME(OBD_AT_HISTORY)
+ .procname = "at_history",
+ .data = &at_history,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_at_history
+ },
+ { INIT_CTL_NAME(0) }
};
-static ctl_table parent_table[] = {
- {OBD_SYSCTL, "lustre", NULL, 0, 0555, obd_table},
- {0}
+static cfs_sysctl_table_t parent_table[] = {
+ {
+ INIT_CTL_NAME(OBD_SYSCTL)
+ .procname = "lustre",
+ .data = NULL,
+ .maxlen = 0,
+ .mode = 0555,
+ .child = obd_table
+ },
+ { INIT_CTL_NAME(0) }
};
+#endif
void obd_sysctl_init (void)
{