| 1 | /* |
|---|
| 2 | * (C) 2001 Clemson University and The University of Chicago |
|---|
| 3 | * |
|---|
| 4 | * Changes by Acxiom Corporation to add proc file handler for pvfs2 client |
|---|
| 5 | * parameters, Copyright © Acxiom Corporation, 2005. |
|---|
| 6 | * |
|---|
| 7 | * See COPYING in top-level directory. |
|---|
| 8 | */ |
|---|
| 9 | |
|---|
| 10 | #include "pvfs2-kernel.h" |
|---|
| 11 | #include "pvfs2-internal.h" |
|---|
| 12 | |
|---|
| 13 | #include <linux/sysctl.h> |
|---|
| 14 | #include <linux/proc_fs.h> |
|---|
| 15 | #include "pvfs2-proc.h" |
|---|
| 16 | |
|---|
| 17 | #ifndef PVFS2_VERSION |
|---|
| 18 | #define PVFS2_VERSION "Unknown" |
|---|
| 19 | #endif |
|---|
| 20 | |
|---|
| 21 | #ifdef CONFIG_SYSCTL |
|---|
| 22 | #include <linux/sysctl.h> |
|---|
| 23 | |
|---|
| 24 | #define KERNEL_DEBUG "kernel-debug" |
|---|
| 25 | #define CLIENT_DEBUG "client-debug" |
|---|
| 26 | #define DEBUG_HELP "debug-help" |
|---|
| 27 | |
|---|
| 28 | /* these functions are defined in pvfs2-utils.c */ |
|---|
| 29 | uint64_t PVFS_proc_debug_eventlog_to_mask(const char *); |
|---|
| 30 | uint64_t PVFS_proc_kmod_eventlog_to_mask(const char *event_logging); |
|---|
| 31 | int PVFS_proc_kmod_mask_to_eventlog(uint64_t mask, char *debug_string); |
|---|
| 32 | int PVFS_proc_mask_to_eventlog(uint64_t mask, char *debug_string); |
|---|
| 33 | |
|---|
| 34 | /* these strings will be initialized by invoking the PVFS_DEV_DEBUG ioctl |
|---|
| 35 | * command when the client-core is started. otherwise, these variables are |
|---|
| 36 | * only set via the proc sys calls. |
|---|
| 37 | */ |
|---|
| 38 | char client_debug_string[PVFS2_MAX_DEBUG_STRING_LEN] = "none"; |
|---|
| 39 | char kernel_debug_string[PVFS2_MAX_DEBUG_STRING_LEN] = "none"; |
|---|
| 40 | extern char debug_help_string[]; |
|---|
| 41 | |
|---|
| 42 | |
|---|
| 43 | /* extra parameters provided to pvfs2 param proc handlers */ |
|---|
| 44 | struct pvfs2_param_extra |
|---|
| 45 | { |
|---|
| 46 | int op; /* parameter type */ |
|---|
| 47 | int min; /* minimum value */ |
|---|
| 48 | int max; /* maximum value */ |
|---|
| 49 | }; |
|---|
| 50 | |
|---|
| 51 | /* pvfs2_proc_debug_mask_handler() |
|---|
| 52 | * proc file handler that will take a debug string and convert it |
|---|
| 53 | * into the proper debug value and then send a request to update the |
|---|
| 54 | * debug mask if client or update the local debug mask if kernel. |
|---|
| 55 | */ |
|---|
| 56 | #if defined(HAVE_PROC_HANDLER_FILE_ARG) |
|---|
| 57 | static int pvfs2_proc_debug_mask_handler( |
|---|
| 58 | ctl_table *ctl, |
|---|
| 59 | int write, |
|---|
| 60 | struct file *filp, |
|---|
| 61 | void *buffer, |
|---|
| 62 | size_t *lenp, |
|---|
| 63 | loff_t *ppos) |
|---|
| 64 | #elif defined(HAVE_PROC_HANDLER_PPOS_ARG) |
|---|
| 65 | static int pvfs2_proc_debug_mask_handler( |
|---|
| 66 | ctl_table *ctl, |
|---|
| 67 | int write, |
|---|
| 68 | void *buffer, |
|---|
| 69 | size_t *lenp, |
|---|
| 70 | loff_t *ppos) |
|---|
| 71 | #else |
|---|
| 72 | static int pvfs2_proc_debug_mask_handler( |
|---|
| 73 | ctl_table *ctl, |
|---|
| 74 | int write, |
|---|
| 75 | struct file *filp, |
|---|
| 76 | void *buffer, |
|---|
| 77 | size_t *lenp) |
|---|
| 78 | #endif |
|---|
| 79 | { |
|---|
| 80 | int ret=0; |
|---|
| 81 | pvfs2_kernel_op_t *new_op = NULL; |
|---|
| 82 | |
|---|
| 83 | gossip_debug(GOSSIP_PROC_DEBUG,"Executing pvfs2_proc_debug_mask_handler...\n"); |
|---|
| 84 | |
|---|
| 85 | /* use generic proc string handling function to retrieve/set string. */ |
|---|
| 86 | #if defined(HAVE_PROC_HANDLER_FILE_ARG) |
|---|
| 87 | ret = proc_dostring(ctl, write, filp, buffer, lenp, ppos); |
|---|
| 88 | #elif defined(HAVE_PROC_HANDLER_PPOS_ARG) |
|---|
| 89 | ret = proc_dostring(ctl, write, buffer, lenp, ppos); |
|---|
| 90 | #else |
|---|
| 91 | ret = proc_dostring(ctl, write, filp, buffer, lenp); |
|---|
| 92 | #endif |
|---|
| 93 | |
|---|
| 94 | if (ret != 0) |
|---|
| 95 | { |
|---|
| 96 | return(ret); |
|---|
| 97 | } |
|---|
| 98 | |
|---|
| 99 | gossip_debug(GOSSIP_PROC_DEBUG,"%s: debug string: %s\n" |
|---|
| 100 | ,"pvfs2_proc_debug_mask_handler" |
|---|
| 101 | ,(char *)ctl->data); |
|---|
| 102 | |
|---|
| 103 | /*For a user write, ctl->data will now contain the new debug string as given |
|---|
| 104 | *by the user. For a user read, the user's "buffer" will now contain the string |
|---|
| 105 | *stored in ctl->data. |
|---|
| 106 | */ |
|---|
| 107 | |
|---|
| 108 | /*For a write, we must convert the debug string into the proper debug mask. |
|---|
| 109 | *The conversion will ignore any invalid keywords sent in by the user, so we |
|---|
| 110 | *re-convert the debug mask back into the correct debug string. |
|---|
| 111 | */ |
|---|
| 112 | if (write && !strcmp(ctl->procname,KERNEL_DEBUG)) |
|---|
| 113 | { |
|---|
| 114 | gossip_debug_mask=PVFS_proc_kmod_eventlog_to_mask((const char *)ctl->data); |
|---|
| 115 | ret=PVFS_proc_kmod_mask_to_eventlog(gossip_debug_mask,(char *)ctl->data); |
|---|
| 116 | |
|---|
| 117 | gossip_debug(GOSSIP_PROC_DEBUG,"%s: kernel debug mask: %lu\n" |
|---|
| 118 | ,"pvfs2_proc_debug_mask_handler" |
|---|
| 119 | ,(unsigned long)gossip_debug_mask); |
|---|
| 120 | gossip_debug(GOSSIP_PROC_DEBUG,"New kernel debug string is %s.\n" |
|---|
| 121 | ,kernel_debug_string); |
|---|
| 122 | printk("PVFS: kernel debug mask has been modified to \"%s\" (0x%08llx).\n" |
|---|
| 123 | ,kernel_debug_string, llu(gossip_debug_mask)); |
|---|
| 124 | } |
|---|
| 125 | else if (write && !strcmp(ctl->procname,CLIENT_DEBUG)) |
|---|
| 126 | { |
|---|
| 127 | new_op = op_alloc(PVFS2_VFS_OP_PARAM); |
|---|
| 128 | if (!new_op) |
|---|
| 129 | return (-ENOMEM); |
|---|
| 130 | strcpy(new_op->upcall.req.param.s_value,ctl->data); |
|---|
| 131 | new_op->upcall.req.param.type = PVFS2_PARAM_REQUEST_SET; |
|---|
| 132 | new_op->upcall.req.param.op = PVFS2_PARAM_REQUEST_OP_CLIENT_DEBUG; |
|---|
| 133 | |
|---|
| 134 | ret=service_operation(new_op,"pvfs2_param",PVFS2_OP_INTERRUPTIBLE); |
|---|
| 135 | |
|---|
| 136 | if (ret==0) |
|---|
| 137 | { |
|---|
| 138 | gossip_debug(GOSSIP_PROC_DEBUG,"Downcall:\treturn status:%d\treturn " |
|---|
| 139 | "value:%x\n" |
|---|
| 140 | ,(int)new_op->downcall.status |
|---|
| 141 | ,(int)new_op->downcall.resp.param.value); |
|---|
| 142 | |
|---|
| 143 | ret=PVFS_proc_mask_to_eventlog(new_op->downcall.resp.param.value |
|---|
| 144 | ,client_debug_string); |
|---|
| 145 | gossip_debug(GOSSIP_PROC_DEBUG,"New client debug string is %s\n" |
|---|
| 146 | ,client_debug_string); |
|---|
| 147 | } |
|---|
| 148 | op_release(new_op); |
|---|
| 149 | printk("PVFS: client debug mask has been modified to \"%s\" (0x%08llx).\n" |
|---|
| 150 | ,client_debug_string, llu(new_op->downcall.resp.param.value)); |
|---|
| 151 | } |
|---|
| 152 | else if (write && !strcmp(ctl->procname,DEBUG_HELP)) |
|---|
| 153 | { |
|---|
| 154 | /*do nothing...the user can only READ the debug help*/ |
|---|
| 155 | return (0); |
|---|
| 156 | } |
|---|
| 157 | |
|---|
| 158 | return (0); |
|---|
| 159 | }/*end pvfs2_proc_debug_mask_handler*/ |
|---|
| 160 | |
|---|
| 161 | /* pvfs2_param_proc_handler() |
|---|
| 162 | * |
|---|
| 163 | * generic proc file handler for getting and setting various tunable |
|---|
| 164 | * pvfs2-client parameters |
|---|
| 165 | */ |
|---|
| 166 | #if defined(HAVE_PROC_HANDLER_FILE_ARG) |
|---|
| 167 | static int pvfs2_param_proc_handler( |
|---|
| 168 | ctl_table *ctl, |
|---|
| 169 | int write, |
|---|
| 170 | struct file *filp, |
|---|
| 171 | void *buffer, |
|---|
| 172 | size_t *lenp, |
|---|
| 173 | loff_t *ppos) |
|---|
| 174 | #elif defined(HAVE_PROC_HANDLER_PPOS_ARG) |
|---|
| 175 | static int pvfs2_param_proc_handler( |
|---|
| 176 | ctl_table *ctl, |
|---|
| 177 | int write, |
|---|
| 178 | void *buffer, |
|---|
| 179 | size_t *lenp, |
|---|
| 180 | loff_t *ppos) |
|---|
| 181 | #else |
|---|
| 182 | static int pvfs2_param_proc_handler( |
|---|
| 183 | ctl_table *ctl, |
|---|
| 184 | int write, |
|---|
| 185 | struct file *filp, |
|---|
| 186 | void *buffer, |
|---|
| 187 | size_t *lenp) |
|---|
| 188 | #endif |
|---|
| 189 | { |
|---|
| 190 | pvfs2_kernel_op_t *new_op = NULL; |
|---|
| 191 | struct pvfs2_param_extra* extra = ctl->extra1; |
|---|
| 192 | int val = 0; |
|---|
| 193 | int ret = 0; |
|---|
| 194 | ctl_table tmp_ctl = *ctl; |
|---|
| 195 | |
|---|
| 196 | /* override fields in control structure for call to generic proc handler */ |
|---|
| 197 | tmp_ctl.data = &val; |
|---|
| 198 | tmp_ctl.extra1 = &extra->min; |
|---|
| 199 | tmp_ctl.extra2 = &extra->max; |
|---|
| 200 | |
|---|
| 201 | /* build an op structure to send request to pvfs2-client */ |
|---|
| 202 | new_op = op_alloc(PVFS2_VFS_OP_PARAM); |
|---|
| 203 | if (!new_op) |
|---|
| 204 | { |
|---|
| 205 | return -ENOMEM; |
|---|
| 206 | } |
|---|
| 207 | |
|---|
| 208 | if(write) |
|---|
| 209 | { |
|---|
| 210 | /* use generic proc handling function to retrive value to set */ |
|---|
| 211 | #if defined(HAVE_PROC_HANDLER_FILE_ARG) |
|---|
| 212 | ret = proc_dointvec_minmax(&tmp_ctl, write, filp, buffer, lenp, ppos); |
|---|
| 213 | #elif defined(HAVE_PROC_HANDLER_PPOS_ARG) |
|---|
| 214 | ret = proc_dointvec_minmax(&tmp_ctl, write, buffer, lenp, ppos); |
|---|
| 215 | #else |
|---|
| 216 | ret = proc_dointvec_minmax(&tmp_ctl, write, filp, buffer, lenp); |
|---|
| 217 | #endif |
|---|
| 218 | if(ret != 0) |
|---|
| 219 | { |
|---|
| 220 | op_release(new_op); |
|---|
| 221 | return(ret); |
|---|
| 222 | } |
|---|
| 223 | gossip_debug(GOSSIP_PROC_DEBUG, "pvfs2: proc write %d\n", val); |
|---|
| 224 | new_op->upcall.req.param.value = val; |
|---|
| 225 | new_op->upcall.req.param.type = PVFS2_PARAM_REQUEST_SET; |
|---|
| 226 | } |
|---|
| 227 | else |
|---|
| 228 | { |
|---|
| 229 | /* get parameter from client, we will output afterwards */ |
|---|
| 230 | new_op->upcall.req.param.type = PVFS2_PARAM_REQUEST_GET; |
|---|
| 231 | } |
|---|
| 232 | |
|---|
| 233 | new_op->upcall.req.param.op = extra->op; |
|---|
| 234 | |
|---|
| 235 | /* perform operation (get or set) */ |
|---|
| 236 | ret = service_operation(new_op, "pvfs2_param", |
|---|
| 237 | PVFS2_OP_INTERRUPTIBLE); |
|---|
| 238 | |
|---|
| 239 | if(ret == 0 && !write) |
|---|
| 240 | { |
|---|
| 241 | /* use generic proc handling function to output value */ |
|---|
| 242 | val = (int)new_op->downcall.resp.param.value; |
|---|
| 243 | gossip_debug(GOSSIP_PROC_DEBUG, "pvfs2: proc read %d\n", val); |
|---|
| 244 | #if defined(HAVE_PROC_HANDLER_FILE_ARG) |
|---|
| 245 | ret = proc_dointvec_minmax(&tmp_ctl, write, filp, buffer, lenp, ppos); |
|---|
| 246 | #elif defined(HAVE_PROC_HANDLER_PPOS_ARG) |
|---|
| 247 | ret = proc_dointvec_minmax(&tmp_ctl, write, buffer, lenp, ppos); |
|---|
| 248 | #else |
|---|
| 249 | ret = proc_dointvec_minmax(&tmp_ctl, write, filp, buffer, lenp); |
|---|
| 250 | #endif |
|---|
| 251 | } |
|---|
| 252 | |
|---|
| 253 | op_release(new_op); |
|---|
| 254 | return(ret); |
|---|
| 255 | } |
|---|
| 256 | |
|---|
| 257 | #if defined(HAVE_PROC_HANDLER_FILE_ARG) |
|---|
| 258 | static int pvfs2_pc_proc_handler( |
|---|
| 259 | ctl_table *ctl, |
|---|
| 260 | int write, |
|---|
| 261 | struct file *filp, |
|---|
| 262 | void *buffer, |
|---|
| 263 | size_t *lenp, |
|---|
| 264 | loff_t *ppos) |
|---|
| 265 | #elif defined(HAVE_PROC_HANDLER_PPOS_ARG) |
|---|
| 266 | static int pvfs2_pc_proc_handler( |
|---|
| 267 | ctl_table *ctl, |
|---|
| 268 | int write, |
|---|
| 269 | void *buffer, |
|---|
| 270 | size_t *lenp, |
|---|
| 271 | loff_t *ppos) |
|---|
| 272 | #else |
|---|
| 273 | static int pvfs2_pc_proc_handler( |
|---|
| 274 | ctl_table *ctl, |
|---|
| 275 | int write, |
|---|
| 276 | struct file *filp, |
|---|
| 277 | void *buffer, |
|---|
| 278 | size_t *lenp) |
|---|
| 279 | #endif |
|---|
| 280 | { |
|---|
| 281 | pvfs2_kernel_op_t *new_op = NULL; |
|---|
| 282 | int ret; |
|---|
| 283 | int pos = 0; |
|---|
| 284 | int to_copy = 0; |
|---|
| 285 | int* pc_type = ctl->extra1; |
|---|
| 286 | #if defined(HAVE_PROC_HANDLER_PPOS_ARG) || defined(HAVE_PROC_HANDLER_FILE_ARG) |
|---|
| 287 | loff_t *offset = ppos; |
|---|
| 288 | #else |
|---|
| 289 | loff_t *offset = &filp->f_pos; |
|---|
| 290 | #endif |
|---|
| 291 | |
|---|
| 292 | if(write) |
|---|
| 293 | { |
|---|
| 294 | /* don't allow writes to this file */ |
|---|
| 295 | *lenp = 0; |
|---|
| 296 | return(-EPERM); |
|---|
| 297 | } |
|---|
| 298 | |
|---|
| 299 | /* build an op structure to send request to pvfs2-client */ |
|---|
| 300 | new_op = op_alloc(PVFS2_VFS_OP_PERF_COUNT); |
|---|
| 301 | if (!new_op) |
|---|
| 302 | { |
|---|
| 303 | return -ENOMEM; |
|---|
| 304 | } |
|---|
| 305 | new_op->upcall.req.perf_count.type = *pc_type; |
|---|
| 306 | |
|---|
| 307 | /* retrieve performance counters */ |
|---|
| 308 | ret = service_operation(new_op, "pvfs2_perf_count", |
|---|
| 309 | PVFS2_OP_INTERRUPTIBLE); |
|---|
| 310 | |
|---|
| 311 | if(ret == 0) |
|---|
| 312 | { |
|---|
| 313 | /* figure out how many bytes we will copy out */ |
|---|
| 314 | pos = strlen(new_op->downcall.resp.perf_count.buffer); |
|---|
| 315 | to_copy = pos - *offset; |
|---|
| 316 | if(to_copy < 0) |
|---|
| 317 | { |
|---|
| 318 | to_copy = 0; |
|---|
| 319 | } |
|---|
| 320 | if(to_copy > *lenp) |
|---|
| 321 | { |
|---|
| 322 | to_copy = *lenp; |
|---|
| 323 | } |
|---|
| 324 | |
|---|
| 325 | if(to_copy) |
|---|
| 326 | { |
|---|
| 327 | /* copy correct portion of the string buffer */ |
|---|
| 328 | if(copy_to_user(buffer, |
|---|
| 329 | (new_op->downcall.resp.perf_count.buffer+(*offset)), to_copy)) |
|---|
| 330 | { |
|---|
| 331 | ret = -EFAULT; |
|---|
| 332 | } |
|---|
| 333 | else |
|---|
| 334 | { |
|---|
| 335 | /* update offsets etc. if successful */ |
|---|
| 336 | *lenp = to_copy; |
|---|
| 337 | *offset += to_copy; |
|---|
| 338 | ret = to_copy; |
|---|
| 339 | } |
|---|
| 340 | } |
|---|
| 341 | else |
|---|
| 342 | { |
|---|
| 343 | *lenp = 0; |
|---|
| 344 | ret = 0; |
|---|
| 345 | } |
|---|
| 346 | } |
|---|
| 347 | |
|---|
| 348 | op_release(new_op); |
|---|
| 349 | |
|---|
| 350 | return(ret); |
|---|
| 351 | } |
|---|
| 352 | |
|---|
| 353 | static struct ctl_table_header *fs_table_header = NULL; |
|---|
| 354 | |
|---|
| 355 | static struct pvfs2_param_extra acache_timeout_extra = { |
|---|
| 356 | .op = PVFS2_PARAM_REQUEST_OP_ACACHE_TIMEOUT_MSECS, |
|---|
| 357 | .min = 0, |
|---|
| 358 | .max = INT_MAX, |
|---|
| 359 | }; |
|---|
| 360 | static struct pvfs2_param_extra acache_hard_extra = { |
|---|
| 361 | .op = PVFS2_PARAM_REQUEST_OP_ACACHE_HARD_LIMIT, |
|---|
| 362 | .min = 0, |
|---|
| 363 | .max = INT_MAX, |
|---|
| 364 | }; |
|---|
| 365 | static struct pvfs2_param_extra acache_soft_extra = { |
|---|
| 366 | .op = PVFS2_PARAM_REQUEST_OP_ACACHE_SOFT_LIMIT, |
|---|
| 367 | .min = 0, |
|---|
| 368 | .max = INT_MAX, |
|---|
| 369 | }; |
|---|
| 370 | static struct pvfs2_param_extra acache_rec_extra = { |
|---|
| 371 | .op = PVFS2_PARAM_REQUEST_OP_ACACHE_RECLAIM_PERCENTAGE, |
|---|
| 372 | .min = 0, |
|---|
| 373 | .max = 100, |
|---|
| 374 | }; |
|---|
| 375 | static struct pvfs2_param_extra static_acache_timeout_extra = { |
|---|
| 376 | .op = PVFS2_PARAM_REQUEST_OP_STATIC_ACACHE_TIMEOUT_MSECS, |
|---|
| 377 | .min = 0, |
|---|
| 378 | .max = INT_MAX, |
|---|
| 379 | }; |
|---|
| 380 | static struct pvfs2_param_extra static_acache_hard_extra = { |
|---|
| 381 | .op = PVFS2_PARAM_REQUEST_OP_STATIC_ACACHE_HARD_LIMIT, |
|---|
| 382 | .min = 0, |
|---|
| 383 | .max = INT_MAX, |
|---|
| 384 | }; |
|---|
| 385 | static struct pvfs2_param_extra static_acache_soft_extra = { |
|---|
| 386 | .op = PVFS2_PARAM_REQUEST_OP_STATIC_ACACHE_SOFT_LIMIT, |
|---|
| 387 | .min = 0, |
|---|
| 388 | .max = INT_MAX, |
|---|
| 389 | }; |
|---|
| 390 | static struct pvfs2_param_extra static_acache_rec_extra = { |
|---|
| 391 | .op = PVFS2_PARAM_REQUEST_OP_STATIC_ACACHE_RECLAIM_PERCENTAGE, |
|---|
| 392 | .min = 0, |
|---|
| 393 | .max = 100, |
|---|
| 394 | }; |
|---|
| 395 | static struct pvfs2_param_extra ncache_timeout_extra = { |
|---|
| 396 | .op = PVFS2_PARAM_REQUEST_OP_NCACHE_TIMEOUT_MSECS, |
|---|
| 397 | .min = 0, |
|---|
| 398 | .max = INT_MAX, |
|---|
| 399 | }; |
|---|
| 400 | static struct pvfs2_param_extra ncache_hard_extra = { |
|---|
| 401 | .op = PVFS2_PARAM_REQUEST_OP_NCACHE_HARD_LIMIT, |
|---|
| 402 | .min = 0, |
|---|
| 403 | .max = INT_MAX, |
|---|
| 404 | }; |
|---|
| 405 | static struct pvfs2_param_extra ncache_soft_extra = { |
|---|
| 406 | .op = PVFS2_PARAM_REQUEST_OP_NCACHE_SOFT_LIMIT, |
|---|
| 407 | .min = 0, |
|---|
| 408 | .max = INT_MAX, |
|---|
| 409 | }; |
|---|
| 410 | static struct pvfs2_param_extra ncache_rec_extra = { |
|---|
| 411 | .op = PVFS2_PARAM_REQUEST_OP_NCACHE_RECLAIM_PERCENTAGE, |
|---|
| 412 | .min = 0, |
|---|
| 413 | .max = 100, |
|---|
| 414 | }; |
|---|
| 415 | static struct pvfs2_param_extra perf_time_interval_extra = { |
|---|
| 416 | .op = PVFS2_PARAM_REQUEST_OP_PERF_TIME_INTERVAL_SECS, |
|---|
| 417 | .min = 0, |
|---|
| 418 | .max = INT_MAX, |
|---|
| 419 | }; |
|---|
| 420 | static struct pvfs2_param_extra perf_history_size_extra = { |
|---|
| 421 | .op = PVFS2_PARAM_REQUEST_OP_PERF_HISTORY_SIZE, |
|---|
| 422 | .min = 1, |
|---|
| 423 | .max = INT_MAX, |
|---|
| 424 | }; |
|---|
| 425 | static struct pvfs2_param_extra perf_reset_extra = { |
|---|
| 426 | .op = PVFS2_PARAM_REQUEST_OP_PERF_RESET, |
|---|
| 427 | .min = 0, |
|---|
| 428 | .max = 1, |
|---|
| 429 | }; |
|---|
| 430 | |
|---|
| 431 | static int min_op_timeout_secs[] = {0}, max_op_timeout_secs[] = {INT_MAX}; |
|---|
| 432 | static int min_slot_timeout_secs[] = {0}, max_slot_timeout_secs[] = {INT_MAX}; |
|---|
| 433 | |
|---|
| 434 | /* |
|---|
| 435 | * Modern kernels (up to 2.6.33) prefer to number the controls themselves. |
|---|
| 436 | */ |
|---|
| 437 | #ifdef CTL_UNNUMBERED |
|---|
| 438 | #define UNNUMBERED_OR_VAL(x) ((x==CTL_NONE) ? CTL_NONE : CTL_UNNUMBERED) |
|---|
| 439 | #else |
|---|
| 440 | #define UNNUMBERED_OR_VAL(x) x |
|---|
| 441 | #endif |
|---|
| 442 | |
|---|
| 443 | /* |
|---|
| 444 | * API change in 2.6.33 removes .ctl_name and .strategy from ctl_table |
|---|
| 445 | */ |
|---|
| 446 | #ifdef HAVE_CTL_NAME |
|---|
| 447 | #define CTL_NAME(c_name) .ctl_name = UNNUMBERED_OR_VAL(c_name), |
|---|
| 448 | #else |
|---|
| 449 | #define CTL_NAME(c_name) |
|---|
| 450 | #endif /* HAVE_CTL_NAME */ |
|---|
| 451 | |
|---|
| 452 | #ifdef HAVE_CTL_STRATEGY |
|---|
| 453 | #define CTL_STATEGY(c_strategy) .strategy = (c_strategy), |
|---|
| 454 | #else |
|---|
| 455 | #define CTL_STRATEGY(strat) |
|---|
| 456 | #endif /* HAVE_CTL_STRATEGY */ |
|---|
| 457 | |
|---|
| 458 | static ctl_table pvfs2_acache_table[] = { |
|---|
| 459 | /* controls acache timeout */ |
|---|
| 460 | { |
|---|
| 461 | CTL_NAME(1) |
|---|
| 462 | .procname = "timeout-msecs", |
|---|
| 463 | .maxlen = sizeof(int), |
|---|
| 464 | .mode = 0644, |
|---|
| 465 | .proc_handler = &pvfs2_param_proc_handler, |
|---|
| 466 | .extra1 = &acache_timeout_extra |
|---|
| 467 | }, |
|---|
| 468 | /* controls acache hard limit */ |
|---|
| 469 | { |
|---|
| 470 | CTL_NAME(2) |
|---|
| 471 | .procname = "hard-limit", |
|---|
| 472 | .maxlen = sizeof(int), |
|---|
| 473 | .mode = 0644, |
|---|
| 474 | .proc_handler = &pvfs2_param_proc_handler, |
|---|
| 475 | .extra1 = &acache_hard_extra |
|---|
| 476 | }, |
|---|
| 477 | /* controls acache soft limit */ |
|---|
| 478 | { |
|---|
| 479 | CTL_NAME(3) |
|---|
| 480 | .procname = "soft-limit", |
|---|
| 481 | .maxlen = sizeof(int), |
|---|
| 482 | .mode = 0644, |
|---|
| 483 | .proc_handler = &pvfs2_param_proc_handler, |
|---|
| 484 | .extra1 = &acache_soft_extra |
|---|
| 485 | }, |
|---|
| 486 | /* controls acache reclaim percentage */ |
|---|
| 487 | { |
|---|
| 488 | CTL_NAME(4) |
|---|
| 489 | .procname = "reclaim-percentage", |
|---|
| 490 | .maxlen = sizeof(int), |
|---|
| 491 | .mode = 0644, |
|---|
| 492 | .proc_handler = &pvfs2_param_proc_handler, |
|---|
| 493 | .extra1 = &acache_rec_extra, |
|---|
| 494 | }, |
|---|
| 495 | { CTL_NAME(CTL_NONE) } |
|---|
| 496 | }; |
|---|
| 497 | static ctl_table pvfs2_static_acache_table[] = { |
|---|
| 498 | /* controls static acache timeout */ |
|---|
| 499 | { |
|---|
| 500 | CTL_NAME(1) |
|---|
| 501 | .procname = "timeout-msecs", |
|---|
| 502 | .maxlen = sizeof(int), |
|---|
| 503 | .mode = 0644, |
|---|
| 504 | .proc_handler = &pvfs2_param_proc_handler, |
|---|
| 505 | .extra1 = &static_acache_timeout_extra |
|---|
| 506 | }, |
|---|
| 507 | /* controls static acache hard limit */ |
|---|
| 508 | { |
|---|
| 509 | CTL_NAME(2) |
|---|
| 510 | .procname = "hard-limit", |
|---|
| 511 | .maxlen = sizeof(int), |
|---|
| 512 | .mode = 0644, |
|---|
| 513 | .proc_handler = &pvfs2_param_proc_handler, |
|---|
| 514 | .extra1 = &static_acache_hard_extra |
|---|
| 515 | }, |
|---|
| 516 | /* controls static acache soft limit */ |
|---|
| 517 | { |
|---|
| 518 | CTL_NAME(3) |
|---|
| 519 | .procname = "soft-limit", |
|---|
| 520 | .maxlen = sizeof(int), |
|---|
| 521 | .mode = 0644, |
|---|
| 522 | .proc_handler = &pvfs2_param_proc_handler, |
|---|
| 523 | .extra1 = &static_acache_soft_extra |
|---|
| 524 | }, |
|---|
| 525 | /* controls static acache reclaim percentage */ |
|---|
| 526 | { |
|---|
| 527 | CTL_NAME(4) |
|---|
| 528 | .procname = "reclaim-percentage", |
|---|
| 529 | .maxlen = sizeof(int), |
|---|
| 530 | .mode = 0644, |
|---|
| 531 | .proc_handler = &pvfs2_param_proc_handler, |
|---|
| 532 | .extra1 = &static_acache_rec_extra, |
|---|
| 533 | }, |
|---|
| 534 | { CTL_NAME(CTL_NONE) } |
|---|
| 535 | }; |
|---|
| 536 | |
|---|
| 537 | static ctl_table pvfs2_ncache_table[] = { |
|---|
| 538 | /* controls ncache timeout */ |
|---|
| 539 | { |
|---|
| 540 | CTL_NAME(1) |
|---|
| 541 | .procname = "timeout-msecs", |
|---|
| 542 | .maxlen = sizeof(int), |
|---|
| 543 | .mode = 0644, |
|---|
| 544 | .proc_handler = &pvfs2_param_proc_handler, |
|---|
| 545 | .extra1 = &ncache_timeout_extra |
|---|
| 546 | }, |
|---|
| 547 | /* controls ncache hard limit */ |
|---|
| 548 | { |
|---|
| 549 | CTL_NAME(2) |
|---|
| 550 | .procname = "hard-limit", |
|---|
| 551 | .maxlen = sizeof(int), |
|---|
| 552 | .mode = 0644, |
|---|
| 553 | .proc_handler = &pvfs2_param_proc_handler, |
|---|
| 554 | .extra1 = &ncache_hard_extra |
|---|
| 555 | }, |
|---|
| 556 | /* controls ncache soft limit */ |
|---|
| 557 | { |
|---|
| 558 | CTL_NAME(3) |
|---|
| 559 | .procname = "soft-limit", |
|---|
| 560 | .maxlen = sizeof(int), |
|---|
| 561 | .mode = 0644, |
|---|
| 562 | .proc_handler = &pvfs2_param_proc_handler, |
|---|
| 563 | .extra1 = &ncache_soft_extra |
|---|
| 564 | }, |
|---|
| 565 | /* controls ncache reclaim percentage */ |
|---|
| 566 | { |
|---|
| 567 | CTL_NAME(4) |
|---|
| 568 | .procname = "reclaim-percentage", |
|---|
| 569 | .maxlen = sizeof(int), |
|---|
| 570 | .mode = 0644, |
|---|
| 571 | .proc_handler = &pvfs2_param_proc_handler, |
|---|
| 572 | .extra1 = &ncache_rec_extra |
|---|
| 573 | }, |
|---|
| 574 | { CTL_NAME(CTL_NONE) } |
|---|
| 575 | }; |
|---|
| 576 | static int acache_perf_count = PVFS2_PERF_COUNT_REQUEST_ACACHE; |
|---|
| 577 | static int static_acache_perf_count = PVFS2_PERF_COUNT_REQUEST_STATIC_ACACHE; |
|---|
| 578 | static int ncache_perf_count = PVFS2_PERF_COUNT_REQUEST_NCACHE; |
|---|
| 579 | static ctl_table pvfs2_pc_table[] = { |
|---|
| 580 | { |
|---|
| 581 | CTL_NAME(1) |
|---|
| 582 | .procname = "acache", |
|---|
| 583 | .maxlen = 4096, |
|---|
| 584 | .mode = 0444, |
|---|
| 585 | .proc_handler = pvfs2_pc_proc_handler, |
|---|
| 586 | .extra1 = &acache_perf_count, |
|---|
| 587 | }, |
|---|
| 588 | { |
|---|
| 589 | CTL_NAME(1) |
|---|
| 590 | .procname = "static-acache", |
|---|
| 591 | .maxlen = 4096, |
|---|
| 592 | .mode = 0444, |
|---|
| 593 | .proc_handler = pvfs2_pc_proc_handler, |
|---|
| 594 | .extra1 = &static_acache_perf_count, |
|---|
| 595 | }, |
|---|
| 596 | { |
|---|
| 597 | CTL_NAME(2) |
|---|
| 598 | .procname = "ncache", |
|---|
| 599 | .maxlen = 4096, |
|---|
| 600 | .mode = 0444, |
|---|
| 601 | .proc_handler = pvfs2_pc_proc_handler, |
|---|
| 602 | .extra1 = &ncache_perf_count |
|---|
| 603 | }, |
|---|
| 604 | { CTL_NAME(CTL_NONE) } |
|---|
| 605 | }; |
|---|
| 606 | |
|---|
| 607 | pvfs2_stats g_pvfs2_stats; |
|---|
| 608 | |
|---|
| 609 | static ctl_table pvfs2_stats_table[] = { |
|---|
| 610 | /* shows number of hits in cache */ |
|---|
| 611 | { |
|---|
| 612 | CTL_NAME(1) |
|---|
| 613 | .procname = "hits", |
|---|
| 614 | .data = &g_pvfs2_stats.cache_hits, |
|---|
| 615 | .maxlen = sizeof(unsigned long), |
|---|
| 616 | .mode = 0444, |
|---|
| 617 | .proc_handler = &proc_dointvec, |
|---|
| 618 | }, |
|---|
| 619 | { |
|---|
| 620 | CTL_NAME(2) |
|---|
| 621 | .procname = "misses", |
|---|
| 622 | .data = &g_pvfs2_stats.cache_misses, |
|---|
| 623 | .maxlen = sizeof(unsigned long), |
|---|
| 624 | .mode = 0444, |
|---|
| 625 | .proc_handler = &proc_dointvec, |
|---|
| 626 | }, |
|---|
| 627 | { |
|---|
| 628 | .procname = "reads", |
|---|
| 629 | .data = &g_pvfs2_stats.reads, |
|---|
| 630 | .maxlen = sizeof(unsigned long), |
|---|
| 631 | .mode = 0444, |
|---|
| 632 | .proc_handler = &proc_dointvec, |
|---|
| 633 | }, |
|---|
| 634 | { |
|---|
| 635 | CTL_NAME(4) |
|---|
| 636 | .procname = "writes", |
|---|
| 637 | .data = &g_pvfs2_stats.writes, |
|---|
| 638 | .maxlen = sizeof(unsigned long), |
|---|
| 639 | .mode = 0444, |
|---|
| 640 | .proc_handler = &proc_dointvec, |
|---|
| 641 | }, |
|---|
| 642 | { CTL_NAME(CTL_NONE) } |
|---|
| 643 | }; |
|---|
| 644 | |
|---|
| 645 | |
|---|
| 646 | |
|---|
| 647 | static ctl_table pvfs2_table[] = { |
|---|
| 648 | /* outputs the available debugging keywords */ |
|---|
| 649 | { |
|---|
| 650 | CTL_NAME(14) |
|---|
| 651 | .procname = DEBUG_HELP, |
|---|
| 652 | .data = &debug_help_string, |
|---|
| 653 | .maxlen = PVFS2_MAX_DEBUG_STRING_LEN, |
|---|
| 654 | .mode = 0444, |
|---|
| 655 | .proc_handler = &pvfs2_proc_debug_mask_handler |
|---|
| 656 | }, |
|---|
| 657 | /* controls client-core debugging level */ |
|---|
| 658 | { |
|---|
| 659 | CTL_NAME(1) |
|---|
| 660 | .procname = CLIENT_DEBUG, |
|---|
| 661 | .data = &client_debug_string, |
|---|
| 662 | .maxlen = PVFS2_MAX_DEBUG_STRING_LEN, |
|---|
| 663 | .mode = 0644, |
|---|
| 664 | .proc_handler = &pvfs2_proc_debug_mask_handler |
|---|
| 665 | }, |
|---|
| 666 | /* controls kernel debugging level using string input */ |
|---|
| 667 | { |
|---|
| 668 | CTL_NAME(2) |
|---|
| 669 | .procname = KERNEL_DEBUG, |
|---|
| 670 | .data = &kernel_debug_string, |
|---|
| 671 | .maxlen = PVFS2_MAX_DEBUG_STRING_LEN, |
|---|
| 672 | .mode = 0644, |
|---|
| 673 | .proc_handler = &pvfs2_proc_debug_mask_handler |
|---|
| 674 | }, |
|---|
| 675 | /* operation timeout */ |
|---|
| 676 | { |
|---|
| 677 | CTL_NAME(3) |
|---|
| 678 | .procname = "op-timeout-secs", |
|---|
| 679 | .data = &op_timeout_secs, |
|---|
| 680 | .maxlen = sizeof(int), |
|---|
| 681 | .mode = 0644, |
|---|
| 682 | .proc_handler = &proc_dointvec_minmax, |
|---|
| 683 | CTL_STRATEGY(&sysctl_intvec) |
|---|
| 684 | .extra1 = &min_op_timeout_secs, |
|---|
| 685 | .extra2 = &max_op_timeout_secs |
|---|
| 686 | }, |
|---|
| 687 | /* slot timeout */ |
|---|
| 688 | { |
|---|
| 689 | CTL_NAME(4) |
|---|
| 690 | .procname = "slot-timeout-secs", |
|---|
| 691 | .data = &slot_timeout_secs, |
|---|
| 692 | .maxlen = sizeof(int), |
|---|
| 693 | .mode = 0644, |
|---|
| 694 | .proc_handler = &proc_dointvec_minmax, |
|---|
| 695 | CTL_STRATEGY(&sysctl_intvec) |
|---|
| 696 | .extra1 = &min_slot_timeout_secs, |
|---|
| 697 | .extra2 = &max_slot_timeout_secs |
|---|
| 698 | }, |
|---|
| 699 | /* time interval for client side performance counters */ |
|---|
| 700 | { |
|---|
| 701 | CTL_NAME(5) |
|---|
| 702 | .procname = "perf-time-interval-secs", |
|---|
| 703 | .maxlen = sizeof(int), |
|---|
| 704 | .mode = 0644, |
|---|
| 705 | .proc_handler = &pvfs2_param_proc_handler, |
|---|
| 706 | .extra1 = &perf_time_interval_extra |
|---|
| 707 | }, |
|---|
| 708 | /* time interval for client side performance counters */ |
|---|
| 709 | { |
|---|
| 710 | CTL_NAME(6) |
|---|
| 711 | .procname = "perf-history-size", |
|---|
| 712 | .maxlen = sizeof(int), |
|---|
| 713 | .mode = 0644, |
|---|
| 714 | .proc_handler = &pvfs2_param_proc_handler, |
|---|
| 715 | .extra1 = &perf_history_size_extra |
|---|
| 716 | }, |
|---|
| 717 | /* reset performance counters */ |
|---|
| 718 | { |
|---|
| 719 | CTL_NAME(7) |
|---|
| 720 | .procname = "perf-counter-reset", |
|---|
| 721 | .maxlen = sizeof(int), |
|---|
| 722 | .mode = 0644, |
|---|
| 723 | .proc_handler = &pvfs2_param_proc_handler, |
|---|
| 724 | .extra1 = &perf_reset_extra, |
|---|
| 725 | }, |
|---|
| 726 | /* subdir for acache control */ |
|---|
| 727 | { |
|---|
| 728 | CTL_NAME(8) |
|---|
| 729 | .procname = "acache", |
|---|
| 730 | .maxlen = 0, |
|---|
| 731 | .mode = 0555, |
|---|
| 732 | .child = pvfs2_acache_table |
|---|
| 733 | }, |
|---|
| 734 | /* subdir for static acache control */ |
|---|
| 735 | { |
|---|
| 736 | CTL_NAME(9) |
|---|
| 737 | .procname = "static-acache", |
|---|
| 738 | .maxlen = 0, |
|---|
| 739 | .mode = 0555, |
|---|
| 740 | .child = pvfs2_static_acache_table |
|---|
| 741 | }, |
|---|
| 742 | { |
|---|
| 743 | CTL_NAME(10) |
|---|
| 744 | .procname = "perf-counters", |
|---|
| 745 | .maxlen = 0, |
|---|
| 746 | .mode = 0555, |
|---|
| 747 | .child = pvfs2_pc_table |
|---|
| 748 | }, |
|---|
| 749 | /* subdir for ncache control */ |
|---|
| 750 | { |
|---|
| 751 | CTL_NAME(11) |
|---|
| 752 | .procname = "ncache", |
|---|
| 753 | .maxlen = 0, |
|---|
| 754 | .mode = 0555, |
|---|
| 755 | .child = pvfs2_ncache_table |
|---|
| 756 | }, |
|---|
| 757 | /* statistics maintained by the kernel module (output only below this) */ |
|---|
| 758 | { |
|---|
| 759 | CTL_NAME(12) |
|---|
| 760 | .procname = "stats", |
|---|
| 761 | .maxlen = 0, |
|---|
| 762 | .mode = 0555, |
|---|
| 763 | .child = pvfs2_stats_table |
|---|
| 764 | }, |
|---|
| 765 | { CTL_NAME(CTL_NONE) } |
|---|
| 766 | }; |
|---|
| 767 | static ctl_table fs_table[] = { |
|---|
| 768 | { |
|---|
| 769 | CTL_NAME(13) |
|---|
| 770 | .procname = "pvfs2", |
|---|
| 771 | .mode = 0555, |
|---|
| 772 | .child = pvfs2_table |
|---|
| 773 | }, |
|---|
| 774 | { CTL_NAME(CTL_NONE) } |
|---|
| 775 | }; |
|---|
| 776 | #endif |
|---|
| 777 | |
|---|
| 778 | void pvfs2_proc_initialize(void) |
|---|
| 779 | { |
|---|
| 780 | #ifdef CONFIG_SYSCTL |
|---|
| 781 | if (!fs_table_header) |
|---|
| 782 | { |
|---|
| 783 | #ifdef HAVE_TWO_ARG_REGISTER_SYSCTL_TABLE |
|---|
| 784 | fs_table_header = register_sysctl_table(fs_table, 0); |
|---|
| 785 | #else |
|---|
| 786 | fs_table_header = register_sysctl_table(fs_table); |
|---|
| 787 | #endif |
|---|
| 788 | } |
|---|
| 789 | #endif |
|---|
| 790 | |
|---|
| 791 | return; |
|---|
| 792 | } |
|---|
| 793 | |
|---|
| 794 | void pvfs2_proc_finalize(void) |
|---|
| 795 | { |
|---|
| 796 | #ifdef CONFIG_SYSCTL |
|---|
| 797 | if(fs_table_header) |
|---|
| 798 | { |
|---|
| 799 | unregister_sysctl_table(fs_table_header); |
|---|
| 800 | fs_table_header = NULL; |
|---|
| 801 | } |
|---|
| 802 | #endif |
|---|
| 803 | return; |
|---|
| 804 | } |
|---|
| 805 | |
|---|
| 806 | /* |
|---|
| 807 | * Local variables: |
|---|
| 808 | * c-indent-level: 4 |
|---|
| 809 | * c-basic-offset: 4 |
|---|
| 810 | * End: |
|---|
| 811 | * |
|---|
| 812 | * vim: ts=8 sts=4 sw=4 expandtab |
|---|
| 813 | */ |
|---|