1 | #include <machine/rtems-bsd-user-space.h> |
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2 | |
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3 | /*- |
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4 | * Copyright (c) 2005 Robert N. M. Watson |
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5 | * All rights reserved. |
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6 | * |
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7 | * Redistribution and use in source and binary forms, with or without |
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8 | * modification, are permitted provided that the following conditions |
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9 | * are met: |
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10 | * 1. Redistributions of source code must retain the above copyright |
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11 | * notice, this list of conditions and the following disclaimer. |
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12 | * 2. Redistributions in binary form must reproduce the above copyright |
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13 | * notice, this list of conditions and the following disclaimer in the |
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14 | * documentation and/or other materials provided with the distribution. |
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15 | * |
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16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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17 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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20 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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21 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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22 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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23 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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24 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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25 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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26 | * SUCH DAMAGE. |
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27 | * |
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28 | * $FreeBSD$ |
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29 | */ |
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30 | |
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31 | #include <rtems/bsd/sys/param.h> |
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32 | #include <sys/sysctl.h> |
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33 | |
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34 | #include <err.h> |
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35 | #include <errno.h> |
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36 | #include <stdio.h> |
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37 | #include <stdlib.h> |
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38 | #include <string.h> |
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39 | |
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40 | #include "memstat.h" |
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41 | #include "memstat_internal.h" |
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42 | |
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43 | const char * |
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44 | memstat_strerror(int error) |
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45 | { |
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46 | |
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47 | switch (error) { |
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48 | case MEMSTAT_ERROR_NOMEMORY: |
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49 | return ("Cannot allocate memory"); |
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50 | case MEMSTAT_ERROR_VERSION: |
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51 | return ("Version mismatch"); |
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52 | case MEMSTAT_ERROR_PERMISSION: |
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53 | return ("Permission denied"); |
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54 | case MEMSTAT_ERROR_DATAERROR: |
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55 | return ("Data format error"); |
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56 | case MEMSTAT_ERROR_KVM: |
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57 | return ("KVM error"); |
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58 | case MEMSTAT_ERROR_KVM_NOSYMBOL: |
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59 | return ("KVM unable to find symbol"); |
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60 | case MEMSTAT_ERROR_KVM_SHORTREAD: |
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61 | return ("KVM short read"); |
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62 | case MEMSTAT_ERROR_UNDEFINED: |
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63 | default: |
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64 | return ("Unknown error"); |
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65 | } |
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66 | } |
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67 | |
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68 | struct memory_type_list * |
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69 | memstat_mtl_alloc(void) |
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70 | { |
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71 | struct memory_type_list *mtlp; |
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72 | |
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73 | mtlp = malloc(sizeof(*mtlp)); |
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74 | if (mtlp == NULL) |
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75 | return (NULL); |
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76 | |
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77 | LIST_INIT(&mtlp->mtl_list); |
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78 | mtlp->mtl_error = MEMSTAT_ERROR_UNDEFINED; |
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79 | return (mtlp); |
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80 | } |
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81 | |
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82 | struct memory_type * |
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83 | memstat_mtl_first(struct memory_type_list *list) |
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84 | { |
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85 | |
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86 | return (LIST_FIRST(&list->mtl_list)); |
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87 | } |
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88 | |
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89 | struct memory_type * |
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90 | memstat_mtl_next(struct memory_type *mtp) |
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91 | { |
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92 | |
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93 | return (LIST_NEXT(mtp, mt_list)); |
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94 | } |
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95 | |
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96 | void |
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97 | _memstat_mtl_empty(struct memory_type_list *list) |
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98 | { |
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99 | struct memory_type *mtp; |
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100 | |
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101 | while ((mtp = LIST_FIRST(&list->mtl_list))) { |
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102 | free(mtp->mt_percpu_alloc); |
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103 | free(mtp->mt_percpu_cache); |
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104 | LIST_REMOVE(mtp, mt_list); |
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105 | free(mtp); |
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106 | } |
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107 | } |
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108 | |
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109 | void |
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110 | memstat_mtl_free(struct memory_type_list *list) |
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111 | { |
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112 | |
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113 | _memstat_mtl_empty(list); |
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114 | free(list); |
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115 | } |
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116 | |
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117 | int |
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118 | memstat_mtl_geterror(struct memory_type_list *list) |
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119 | { |
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120 | |
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121 | return (list->mtl_error); |
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122 | } |
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123 | |
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124 | /* |
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125 | * Look for an existing memory_type entry in a memory_type list, based on the |
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126 | * allocator and name of the type. If not found, return NULL. No errno or |
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127 | * memstat error. |
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128 | */ |
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129 | struct memory_type * |
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130 | memstat_mtl_find(struct memory_type_list *list, int allocator, |
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131 | const char *name) |
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132 | { |
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133 | struct memory_type *mtp; |
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134 | |
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135 | LIST_FOREACH(mtp, &list->mtl_list, mt_list) { |
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136 | if ((mtp->mt_allocator == allocator || |
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137 | allocator == ALLOCATOR_ANY) && |
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138 | strcmp(mtp->mt_name, name) == 0) |
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139 | return (mtp); |
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140 | } |
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141 | return (NULL); |
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142 | } |
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143 | |
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144 | /* |
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145 | * Allocate a new memory_type with the specificed allocator type and name, |
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146 | * then insert into the list. The structure will be zero'd. |
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147 | * |
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148 | * libmemstat(3) internal function. |
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149 | */ |
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150 | struct memory_type * |
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151 | _memstat_mt_allocate(struct memory_type_list *list, int allocator, |
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152 | const char *name, int maxcpus) |
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153 | { |
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154 | struct memory_type *mtp; |
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155 | |
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156 | mtp = malloc(sizeof(*mtp)); |
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157 | if (mtp == NULL) |
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158 | return (NULL); |
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159 | |
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160 | bzero(mtp, sizeof(*mtp)); |
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161 | |
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162 | mtp->mt_allocator = allocator; |
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163 | mtp->mt_percpu_alloc = malloc(sizeof(struct mt_percpu_alloc_s) * |
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164 | maxcpus); |
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165 | mtp->mt_percpu_cache = malloc(sizeof(struct mt_percpu_cache_s) * |
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166 | maxcpus); |
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167 | strlcpy(mtp->mt_name, name, MEMTYPE_MAXNAME); |
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168 | LIST_INSERT_HEAD(&list->mtl_list, mtp, mt_list); |
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169 | return (mtp); |
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170 | } |
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171 | |
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172 | /* |
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173 | * Reset any libmemstat(3)-owned statistics in a memory_type record so that |
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174 | * it can be reused without incremental addition problems. Caller-owned |
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175 | * memory is left "as-is", and must be updated by the caller if desired. |
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176 | * |
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177 | * libmemstat(3) internal function. |
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178 | */ |
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179 | void |
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180 | _memstat_mt_reset_stats(struct memory_type *mtp, int maxcpus) |
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181 | { |
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182 | int i; |
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183 | |
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184 | mtp->mt_countlimit = 0; |
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185 | mtp->mt_byteslimit = 0; |
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186 | mtp->mt_sizemask = 0; |
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187 | mtp->mt_size = 0; |
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188 | |
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189 | mtp->mt_memalloced = 0; |
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190 | mtp->mt_memfreed = 0; |
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191 | mtp->mt_numallocs = 0; |
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192 | mtp->mt_numfrees = 0; |
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193 | mtp->mt_bytes = 0; |
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194 | mtp->mt_count = 0; |
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195 | mtp->mt_free = 0; |
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196 | mtp->mt_failures = 0; |
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197 | mtp->mt_sleeps = 0; |
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198 | |
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199 | mtp->mt_zonefree = 0; |
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200 | mtp->mt_kegfree = 0; |
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201 | |
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202 | for (i = 0; i < maxcpus; i++) { |
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203 | mtp->mt_percpu_alloc[i].mtp_memalloced = 0; |
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204 | mtp->mt_percpu_alloc[i].mtp_memfreed = 0; |
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205 | mtp->mt_percpu_alloc[i].mtp_numallocs = 0; |
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206 | mtp->mt_percpu_alloc[i].mtp_numfrees = 0; |
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207 | mtp->mt_percpu_alloc[i].mtp_sizemask = 0; |
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208 | mtp->mt_percpu_cache[i].mtp_free = 0; |
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209 | } |
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210 | } |
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211 | |
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212 | /* |
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213 | * Accessor methods for struct memory_type. Avoids encoding the structure |
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214 | * ABI into the application. |
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215 | */ |
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216 | const char * |
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217 | memstat_get_name(const struct memory_type *mtp) |
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218 | { |
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219 | |
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220 | return (mtp->mt_name); |
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221 | } |
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222 | |
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223 | int |
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224 | memstat_get_allocator(const struct memory_type *mtp) |
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225 | { |
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226 | |
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227 | return (mtp->mt_allocator); |
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228 | } |
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229 | |
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230 | uint64_t |
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231 | memstat_get_countlimit(const struct memory_type *mtp) |
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232 | { |
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233 | |
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234 | return (mtp->mt_countlimit); |
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235 | } |
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236 | |
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237 | uint64_t |
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238 | memstat_get_byteslimit(const struct memory_type *mtp) |
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239 | { |
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240 | |
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241 | return (mtp->mt_byteslimit); |
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242 | } |
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243 | |
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244 | uint64_t |
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245 | memstat_get_sizemask(const struct memory_type *mtp) |
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246 | { |
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247 | |
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248 | return (mtp->mt_sizemask); |
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249 | } |
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250 | |
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251 | uint64_t |
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252 | memstat_get_size(const struct memory_type *mtp) |
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253 | { |
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254 | |
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255 | return (mtp->mt_size); |
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256 | } |
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257 | |
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258 | uint64_t |
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259 | memstat_get_memalloced(const struct memory_type *mtp) |
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260 | { |
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261 | |
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262 | return (mtp->mt_memalloced); |
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263 | } |
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264 | |
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265 | uint64_t |
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266 | memstat_get_memfreed(const struct memory_type *mtp) |
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267 | { |
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268 | |
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269 | return (mtp->mt_memfreed); |
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270 | } |
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271 | |
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272 | uint64_t |
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273 | memstat_get_numallocs(const struct memory_type *mtp) |
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274 | { |
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275 | |
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276 | return (mtp->mt_numallocs); |
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277 | } |
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278 | |
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279 | uint64_t |
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280 | memstat_get_numfrees(const struct memory_type *mtp) |
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281 | { |
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282 | |
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283 | return (mtp->mt_numfrees); |
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284 | } |
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285 | |
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286 | uint64_t |
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287 | memstat_get_bytes(const struct memory_type *mtp) |
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288 | { |
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289 | |
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290 | return (mtp->mt_bytes); |
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291 | } |
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292 | |
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293 | uint64_t |
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294 | memstat_get_count(const struct memory_type *mtp) |
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295 | { |
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296 | |
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297 | return (mtp->mt_count); |
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298 | } |
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299 | |
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300 | uint64_t |
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301 | memstat_get_free(const struct memory_type *mtp) |
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302 | { |
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303 | |
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304 | return (mtp->mt_free); |
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305 | } |
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306 | |
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307 | uint64_t |
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308 | memstat_get_failures(const struct memory_type *mtp) |
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309 | { |
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310 | |
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311 | return (mtp->mt_failures); |
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312 | } |
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313 | |
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314 | uint64_t |
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315 | memstat_get_sleeps(const struct memory_type *mtp) |
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316 | { |
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317 | |
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318 | return (mtp->mt_sleeps); |
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319 | } |
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320 | |
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321 | void * |
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322 | memstat_get_caller_pointer(const struct memory_type *mtp, int index) |
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323 | { |
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324 | |
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325 | return (mtp->mt_caller_pointer[index]); |
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326 | } |
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327 | |
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328 | void |
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329 | memstat_set_caller_pointer(struct memory_type *mtp, int index, void *value) |
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330 | { |
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331 | |
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332 | mtp->mt_caller_pointer[index] = value; |
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333 | } |
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334 | |
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335 | uint64_t |
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336 | memstat_get_caller_uint64(const struct memory_type *mtp, int index) |
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337 | { |
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338 | |
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339 | return (mtp->mt_caller_uint64[index]); |
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340 | } |
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341 | |
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342 | void |
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343 | memstat_set_caller_uint64(struct memory_type *mtp, int index, uint64_t value) |
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344 | { |
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345 | |
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346 | mtp->mt_caller_uint64[index] = value; |
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347 | } |
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348 | |
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349 | uint64_t |
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350 | memstat_get_zonefree(const struct memory_type *mtp) |
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351 | { |
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352 | |
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353 | return (mtp->mt_zonefree); |
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354 | } |
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355 | |
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356 | uint64_t |
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357 | memstat_get_kegfree(const struct memory_type *mtp) |
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358 | { |
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359 | |
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360 | return (mtp->mt_kegfree); |
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361 | } |
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362 | |
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363 | uint64_t |
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364 | memstat_get_percpu_memalloced(const struct memory_type *mtp, int cpu) |
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365 | { |
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366 | |
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367 | return (mtp->mt_percpu_alloc[cpu].mtp_memalloced); |
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368 | } |
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369 | |
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370 | uint64_t |
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371 | memstat_get_percpu_memfreed(const struct memory_type *mtp, int cpu) |
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372 | { |
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373 | |
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374 | return (mtp->mt_percpu_alloc[cpu].mtp_memfreed); |
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375 | } |
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376 | |
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377 | uint64_t |
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378 | memstat_get_percpu_numallocs(const struct memory_type *mtp, int cpu) |
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379 | { |
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380 | |
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381 | return (mtp->mt_percpu_alloc[cpu].mtp_numallocs); |
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382 | } |
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383 | |
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384 | uint64_t |
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385 | memstat_get_percpu_numfrees(const struct memory_type *mtp, int cpu) |
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386 | { |
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387 | |
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388 | return (mtp->mt_percpu_alloc[cpu].mtp_numfrees); |
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389 | } |
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390 | |
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391 | uint64_t |
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392 | memstat_get_percpu_sizemask(const struct memory_type *mtp, int cpu) |
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393 | { |
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394 | |
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395 | return (mtp->mt_percpu_alloc[cpu].mtp_sizemask); |
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396 | } |
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397 | |
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398 | void * |
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399 | memstat_get_percpu_caller_pointer(const struct memory_type *mtp, int cpu, |
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400 | int index) |
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401 | { |
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402 | |
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403 | return (mtp->mt_percpu_alloc[cpu].mtp_caller_pointer[index]); |
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404 | } |
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405 | |
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406 | void |
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407 | memstat_set_percpu_caller_pointer(struct memory_type *mtp, int cpu, |
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408 | int index, void *value) |
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409 | { |
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410 | |
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411 | mtp->mt_percpu_alloc[cpu].mtp_caller_pointer[index] = value; |
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412 | } |
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413 | |
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414 | uint64_t |
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415 | memstat_get_percpu_caller_uint64(const struct memory_type *mtp, int cpu, |
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416 | int index) |
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417 | { |
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418 | |
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419 | return (mtp->mt_percpu_alloc[cpu].mtp_caller_uint64[index]); |
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420 | } |
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421 | |
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422 | void |
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423 | memstat_set_percpu_caller_uint64(struct memory_type *mtp, int cpu, int index, |
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424 | uint64_t value) |
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425 | { |
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426 | |
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427 | mtp->mt_percpu_alloc[cpu].mtp_caller_uint64[index] = value; |
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428 | } |
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429 | |
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430 | uint64_t |
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431 | memstat_get_percpu_free(const struct memory_type *mtp, int cpu) |
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432 | { |
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433 | |
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434 | return (mtp->mt_percpu_cache[cpu].mtp_free); |
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435 | } |
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