Whamcloud - gitweb
LU-5556 target: limit bulk transfer time
[fs/lustre-release.git] / lustre / obdclass / linux / linux-sysctl.c
index cfab30e..6a06687 100644 (file)
@@ -1,6 +1,4 @@
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
  * GPL HEADER START
  *
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  * GPL HEADER END
  */
 /*
- * Copyright  2008 Sun Microsystems, Inc. All rights reserved
+ * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
+ *
+ * Copyright (c) 2011, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -35,7 +35,6 @@
  */
 
 #include <linux/module.h>
-#include <linux/autoconf.h>
 #include <linux/sysctl.h>
 #include <linux/sched.h>
 #include <linux/mm.h>
 #include <obd_support.h>
 #include <lprocfs_status.h>
 
-cfs_sysctl_table_header_t *obd_table_header = NULL;
+#ifdef CONFIG_SYSCTL
+struct ctl_table_header *obd_table_header = NULL;
+#endif
+
+#ifndef HAVE_SYSCTL_UNNUMBERED
 
 #define OBD_SYSCTL 300
 
 enum {
-        OBD_FAIL_LOC = 1,       /* control test failures instrumentation */
-        OBD_FAIL_VAL,           /* userdata for fail loc */
-        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 */
@@ -73,18 +74,40 @@ enum {
         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,
+       OBD_BULK_TIMEOUT,       /* bulk transfer timeout */
 };
 
-int LL_PROC_PROTO(proc_fail_loc)
-{
-        int rc;
-        long old_fail_loc = obd_fail_loc;
+#else
+
+#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
+#define OBD_BULK_TIMEOUT       CTL_UNNUMBERED
 
-        rc = ll_proc_dointvec(table, write, filp, buffer, lenp, ppos);
-        if (old_fail_loc != obd_fail_loc)
-                wake_up(&obd_race_waitq);
-        return rc;
-}
+#endif
 
 int LL_PROC_PROTO(proc_set_timeout)
 {
@@ -113,7 +136,7 @@ int LL_PROC_PROTO(proc_memory_alloc)
         if (len > *lenp)
                 len = *lenp;
         buf[len] = '\0';
-        if (copy_to_user(buffer, buf, len))
+       if (copy_to_user(buffer, buf, len))
                 return -EFAULT;
         *lenp = len;
         *ppos += *lenp;
@@ -137,7 +160,7 @@ int LL_PROC_PROTO(proc_pages_alloc)
         if (len > *lenp)
                 len = *lenp;
         buf[len] = '\0';
-        if (copy_to_user(buffer, buf, len))
+       if (copy_to_user(buffer, buf, len))
                 return -EFAULT;
         *lenp = len;
         *ppos += *lenp;
@@ -161,7 +184,7 @@ int LL_PROC_PROTO(proc_mem_max)
         if (len > *lenp)
                 len = *lenp;
         buf[len] = '\0';
-        if (copy_to_user(buffer, buf, len))
+       if (copy_to_user(buffer, buf, len))
                 return -EFAULT;
         *lenp = len;
         *ppos += *lenp;
@@ -185,7 +208,7 @@ int LL_PROC_PROTO(proc_pages_max)
         if (len > *lenp)
                 len = *lenp;
         buf[len] = '\0';
-        if (copy_to_user(buffer, buf, len))
+       if (copy_to_user(buffer, buf, len))
                 return -EFAULT;
         *lenp = len;
         *ppos += *lenp;
@@ -194,43 +217,44 @@ int LL_PROC_PROTO(proc_pages_max)
 
 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 > ((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, ((num_physpages / 10) * 9));
-                        obd_max_dirty_pages = ((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 (copy_to_user(buffer, buf, len))
-                        return -EFAULT;
-                *lenp = len;
-        }
-        *ppos += *lenp;
-        return rc;
+       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 - PAGE_CACHE_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 > ((totalram_pages / 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,
+                              ((totalram_pages / 10) * 9));
+                       obd_max_dirty_pages = ((totalram_pages / 10) * 9);
+               } else if (obd_max_dirty_pages < 4 << (20 - PAGE_CACHE_SHIFT)) {
+                       obd_max_dirty_pages = 4 << (20 - PAGE_CACHE_SHIFT);
+               }
+       } else {
+               char buf[21];
+               int len;
+
+               len = lprocfs_read_frac_helper(buf, sizeof(buf),
+                                              *(unsigned int *)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 RANDOM_FAIL_ALLOC
@@ -257,7 +281,7 @@ int LL_PROC_PROTO(proc_alloc_fail_rate)
                 if (len > *lenp)
                         len = *lenp;
                 buf[len] = '\0';
-                if (copy_to_user(buffer, buf, len))
+               if (copy_to_user(buffer, buf, len))
                         return -EFAULT;
                 *lenp = len;
         }
@@ -266,25 +290,35 @@ int LL_PROC_PROTO(proc_alloc_fail_rate)
 }
 #endif
 
-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_FAIL_VAL,
-                .procname = "fail_val",
-                .data     = &obd_fail_val,
-                .maxlen   = sizeof(int),
-                .mode     = 0644,
-                .proc_handler = &proc_dointvec
-        },
+int LL_PROC_PROTO(proc_bulk_timeout)
+{
+       return proc_dointvec(table, write, buffer, lenp, ppos);
+}
+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 struct ctl_table obd_table[] = {
         {
-                .ctl_name = OBD_TIMEOUT,
+                INIT_CTL_NAME(OBD_TIMEOUT)
                 .procname = "timeout",
                 .data     = &obd_timeout,
                 .maxlen   = sizeof(int),
@@ -292,7 +326,7 @@ static cfs_sysctl_table_t obd_table[] = {
                 .proc_handler = &proc_set_timeout
         },
         {
-                .ctl_name = OBD_DEBUG_PEER_ON_TIMEOUT,
+                INIT_CTL_NAME(OBD_DEBUG_PEER_ON_TIMEOUT)
                 .procname = "debug_peer_on_timeout",
                 .data     = &obd_debug_peer_on_timeout,
                 .maxlen   = sizeof(int),
@@ -300,7 +334,7 @@ static cfs_sysctl_table_t obd_table[] = {
                 .proc_handler = &proc_dointvec
         },
         {
-                .ctl_name = OBD_DUMP_ON_TIMEOUT,
+                INIT_CTL_NAME(OBD_DUMP_ON_TIMEOUT)
                 .procname = "dump_on_timeout",
                 .data     = &obd_dump_on_timeout,
                 .maxlen   = sizeof(int),
@@ -308,7 +342,7 @@ static cfs_sysctl_table_t obd_table[] = {
                 .proc_handler = &proc_dointvec
         },
         {
-                .ctl_name = OBD_DUMP_ON_EVICTION,
+                INIT_CTL_NAME(OBD_DUMP_ON_EVICTION)
                 .procname = "dump_on_eviction",
                 .data     = &obd_dump_on_eviction,
                 .maxlen   = sizeof(int),
@@ -316,7 +350,7 @@ static cfs_sysctl_table_t obd_table[] = {
                 .proc_handler = &proc_dointvec
         },
         {
-                .ctl_name = OBD_MEMUSED,
+                INIT_CTL_NAME(OBD_MEMUSED)
                 .procname = "memused",
                 .data     = NULL,
                 .maxlen   = 0,
@@ -324,7 +358,7 @@ static cfs_sysctl_table_t obd_table[] = {
                 .proc_handler = &proc_memory_alloc
         },
         {
-                .ctl_name = OBD_PAGESUSED,
+                INIT_CTL_NAME(OBD_PAGESUSED)
                 .procname = "pagesused",
                 .data     = NULL,
                 .maxlen   = 0,
@@ -332,7 +366,7 @@ static cfs_sysctl_table_t obd_table[] = {
                 .proc_handler = &proc_pages_alloc
         },
         {
-                .ctl_name = OBD_MAXMEMUSED,
+                INIT_CTL_NAME(OBD_MAXMEMUSED)
                 .procname = "memused_max",
                 .data     = NULL,
                 .maxlen   = 0,
@@ -340,7 +374,7 @@ static cfs_sysctl_table_t obd_table[] = {
                 .proc_handler = &proc_mem_max
         },
         {
-                .ctl_name = OBD_MAXPAGESUSED,
+                INIT_CTL_NAME(OBD_MAXPAGESUSED)
                 .procname = "pagesused_max",
                 .data     = NULL,
                 .maxlen   = 0,
@@ -348,16 +382,16 @@ static cfs_sysctl_table_t obd_table[] = {
                 .proc_handler = &proc_pages_max
         },
         {
-                .ctl_name = OBD_LDLM_TIMEOUT,
+                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_LOC
+#ifdef RANDOM_FAIL_ALLOC
         {
-                .ctl_name = OBD_ALLOC_FAIL_RATE,
+                INIT_CTL_NAME(OBD_ALLOC_FAIL_RATE)
                 .procname = "alloc_fail_rate",
                 .data     = &obd_alloc_fail_rate,
                 .maxlen   = sizeof(int),
@@ -366,41 +400,90 @@ static cfs_sysctl_table_t obd_table[] = {
         },
 #endif
         {
-                .ctl_name = OBD_MAX_DIRTY_PAGES,
+                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
         },
-        { 0 }
+       {
+               INIT_CTL_NAME(OBD_BULK_TIMEOUT)
+               .procname       = "bulk_timeout",
+               .data           = &bulk_timeout,
+               .maxlen         = sizeof(int),
+               .mode           = 0644,
+               .proc_handler   = &proc_bulk_timeout
+       },
+        {
+                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 cfs_sysctl_table_t parent_table[] = {
+static struct ctl_table parent_table[] = {
         {
-                .ctl_name = OBD_SYSCTL,
+                INIT_CTL_NAME(OBD_SYSCTL)
                 .procname = "lustre",
                 .data     = NULL,
                 .maxlen   = 0,
                 .mode     = 0555,
                 .child    = obd_table
         },
-        {0}
+        {       INIT_CTL_NAME(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
 }