2 * Copyright 2000, International Business Machines Corporation and others.
5 * This software has been released under the terms of the IBM Public
6 * License. For details, see the LICENSE file in the top-level source
7 * directory or online at http://www.openafs.org/dl/license10.html
10 #include <afsconfig.h>
11 #include <afs/param.h>
16 #include <sys/errno.h>
17 #include <afs/afs_args.h>
19 #if defined(AFS_SUN_ENV) && !defined(AFS_SUN5_ENV)
27 #ifdef AFS_SGI_XFS_IOPS_ENV
30 #include "afssyscalls.h"
33 FILE *inode_debug_log; /* If set, write to this file. */
34 /* Indices used for database arrays. */
40 static void check_iops(int index, char *fun, char *file, int line);
41 #endif /* AFS_DEBUG_IOPS */
45 * in VRMIX, system calls look just like function calls, so we don't
46 * need to do anything!
50 #if defined(AFS_SGI_ENV)
52 #include <sys/types.h>
53 #endif /* AFS_SGI61_ENV */
55 #pragma weak xicreate = icreate
56 #pragma weak xiinc = iinc
57 #pragma weak xidec = idec
58 #pragma weak xiopen = iopen
59 #pragma weak xlsetpag = lsetpag
60 #pragma weak xlpioctl = lpioctl
62 #pragma weak xiread = iread
63 #pragma weak xiwrite = iwrite
67 icreate(int dev, int near_inode, int param1, int param2, int param3, int param4)
69 return(syscall(AFS_ICREATE, dev, near_inode, param1, param2, param3,
74 iopen(int dev, int inode, int usrmod)
76 return(syscall(AFS_IOPEN, dev, inode, usrmod));
80 iinc(int dev, int inode, int inode_p1)
82 return(syscall(AFS_IINC, dev, inode, inode_p1));
86 idec(int dev, int inode, int inode_p1)
88 return(syscall(AFS_IDEC, dev, inode, inode_p1));
92 #ifdef AFS_SGI_XFS_IOPS_ENV
94 icreatename64(int dev, char *partname, int p0, int p1, int p2, int p3)
98 afs_inode_params_t param;
100 /* Use an array so we don't widen the syscall interface. */
105 code = afs_syscall(AFSCALL_ICREATENAME64, dev, partname,
106 1 + strlen(partname), param, &ino);
113 iopen64(int dev, uint64_t inode, int usrmod)
115 return(syscall(AFS_IOPEN64, dev, (u_int)((inode>>32)&0xffffffff),
116 (u_int)(inode&0xffffffff), usrmod));
120 iinc64(int dev, uint64_t inode, int inode_p1)
122 return(afs_syscall(AFSCALL_IINC64, dev,
123 (u_int)((inode>>32)&0xffffffff),
124 (u_int)(inode&0xffffffff),
129 idec64(int dev, uint64_t inode, int inode_p1)
131 return(afs_syscall(AFSCALL_IDEC64, dev,
132 (u_int)((inode>>32)&0xffffffff),
133 (u_int)(inode&0xffffffff),
138 ilistinode64(int dev, uint64_t inode, void *data, int *datalen)
140 return(afs_syscall(AFSCALL_ILISTINODE64, dev,
141 (u_int)((inode>>32)&0xffffffff),
142 (u_int)(inode&0xffffffff),
146 #ifdef AFS_DEBUG_IOPS
147 uint64_t debug_icreatename64(int dev, char *partname, int p0, int p1,
148 int p2, int p3, char *file, int line)
150 check_iops(CREATE_I, "icreatename64", file, line);
151 return icreatename64(dev, partname, p0, p1, p2, p3);
154 int debug_iopen64(int dev, uint64_t inode, int usrmod, char *file, int line)
156 check_iops(OPEN_I, "iopen64", file, line);
157 return iopen64(dev, inode, usrmod);
160 int debug_iinc64(int dev, uint64_t inode, int inode_p1, char *file, int line)
162 check_iops(INC_I, "iinc64", file, line);
163 return iinc64(dev, inode, inode_p1);
166 int debug_idec64(int dev, uint64_t inode, int inode_p1, char *file, int line)
168 check_iops(DEC_I, "idec64", file, line);
169 return idec64(dev, inode, inode_p1);
172 #endif /* AFS_DEBUG_IOPS */
173 #endif /* AFS_SGI_XFS_IOPS_ENV */
175 #ifdef AFS_SGI_VNODE_GLUE
176 /* flag: 1 = has NUMA, 0 = no NUMA, -1 = kernel decides. */
177 int afs_init_kernel_config(int flag)
179 return afs_syscall(AFSCALL_INIT_KERNEL_CONFIG, flag);
184 /* iread and iwrite are deprecated interfaces. Use inode_read and inode_write instead. */
186 iread(int dev, int inode, int inode_p1, unsigned int offset, char *cbuf, unsigned int count)
188 return(syscall(AFS_IREAD, dev, inode, inode_p1, offset, cbuf, count));
192 iwrite(int dev, int inode, int inode_p1, unsigned int offset, char *cbuf, unsigned int count)
194 return(syscall(AFS_IWRITE, dev, inode, inode_p1, offset, cbuf, count));
201 return(syscall(AFS_SETPAG));
205 lpioctl(char *path, int cmd, char *cmarg, int follow)
207 return(syscall(AFS_PIOCTL, path, cmd, cmarg, follow));
209 #else /* AFS_SGI_ENV */
211 #ifndef AFS_NAMEI_ENV
219 /* This module contains the stubs for all AFS-related kernel calls that use a single common entry (i.e. AFS_SYSCALL system call). Note we ignore SIGSYS signals that are sent when a "nosys" is reached so that kernels that don't support this new entry, will revert back to the original old afs entry; note that in some cases (where EINVAL is normally returned) we'll call the appropriate system call twice (sigh) */
221 /* Also since we're limited to 6 parameters/call, in some calls (icreate,
222 iread, iwrite) we combine some in a structure */
224 int icreate(int dev, int near_inode, int param1, int param2, int param3, int param4)
228 struct iparam iparams;
230 iparams.param1 = param1;
231 iparams.param2 = param2;
232 iparams.param3 = param3;
233 iparams.param4 = param4;
235 errcode = syscall(AFS_SYSCALL, AFSCALL_ICREATE, dev, near_inode, &iparams);
240 int iopen(int dev, int inode, int usrmod)
245 errcode = syscall(AFS_SYSCALL, AFSCALL_IOPEN, dev, inode, usrmod);
250 int iinc(int dev, int inode, int inode_p1)
255 errcode = syscall(AFS_SYSCALL, AFSCALL_IINC, dev, inode, inode_p1);
260 int idec(int dev, int inode, int inode_p1)
265 errcode = syscall(AFS_SYSCALL, AFSCALL_IDEC, dev, inode, inode_p1);
271 int iread(int dev, int inode, int inode_p1, unsigned int offset, char *cbuf, unsigned int count)
275 struct iparam iparams;
277 iparams.param1 = inode_p1;
278 iparams.param2 = offset;
279 iparams.param3 = (long)cbuf;
280 iparams.param4 = count;
281 errcode = syscall(AFS_SYSCALL, AFSCALL_IREAD, dev, inode, &iparams);
286 iwrite(int dev, int inode, int inode_p1, unsigned int offset, char *cbuf, unsigned int count)
290 struct iparam iparams;
292 iparams.param1 = inode_p1;
293 iparams.param2 = offset;
294 iparams.param3 = (long)cbuf;
295 iparams.param4 = count;
297 errcode = syscall(AFS_SYSCALL, AFSCALL_IWRITE, dev, inode, &iparams);
302 #endif /* AFS_NAMEI_ENV */
309 errcode = syscall(AFS_SYSCALL, AFSCALL_SETPAG);
313 int lpioctl(char *path, int cmd, char *cmarg, int follow)
318 errcode = syscall(AFS_SYSCALL, AFSCALL_PIOCTL, path, cmd, cmarg, follow);
322 #endif /* !AFS_SGI_ENV */
323 #endif /* !AFS_AIX32_ENV */
325 #ifndef AFS_NAMEI_ENV
328 inode_read(afs_int32 dev, Inode inode, afs_int32 inode_p1, unsigned int offset, char *cbuf, unsigned int count)
334 fd = IOPEN(dev, inode, O_RDONLY);
338 code = lseek(fd, offset, SEEK_SET);
339 if (code != offset) {
343 code = read(fd, cbuf, count);
351 inode_write(afs_int32 dev, Inode inode, afs_int32 inode_p1, unsigned int offset, char *cbuf, unsigned int count)
356 fd = IOPEN(dev, inode, O_WRONLY);
360 code = lseek(fd, offset, SEEK_SET);
361 if (code != offset) {
365 code = write(fd, cbuf, count);
374 * returns a static string used to print either 32 or 64 bit inode numbers.
376 #ifdef AFS_64BIT_IOPS_ENV
377 char * PrintInode(char *s, Inode ino)
379 char * PrintInode(afs_ino_str_t s, Inode ino)
382 static afs_ino_str_t result;
387 #ifdef AFS_64BIT_IOPS_ENV
388 (void) sprintf((char*)s, "%llu", ino);
390 (void) sprintf((char*)s, "%u", ino);
394 #endif /* AFS_NAMEI_ENV */
397 #ifdef AFS_DEBUG_IOPS
398 #define MAX_FILE_NAME_LENGTH 32
401 char file[MAX_FILE_NAME_LENGTH];
403 int iops_debug_n_avail[MAX_I+1];
404 int iops_debug_n_used[MAX_I+1];
405 iops_debug_t *iops_debug[MAX_I+1];
406 #define IOPS_DEBUG_MALLOC_STEP 64
409 * Returns 1 if first time we've seen this file/line.
410 * Puts file/line in array so we only print the first time we encounter
413 static void check_iops(int index, char *fun, char *file, int line)
416 int *availp = &iops_debug_n_avail[index];
417 int *usedp = &iops_debug_n_used[index];
418 iops_debug_t *iops = iops_debug[index];
421 if (!inode_debug_log)
426 for (i=0; i< used; i++) {
427 if (line == iops[i].line) {
428 if (!strncmp(file, iops[i].file, MAX_FILE_NAME_LENGTH)) {
429 /* We've already entered this one. */
436 /* Not found, enter into db. */
437 if (used >= *availp) {
439 avail += IOPS_DEBUG_MALLOC_STEP;
440 if (avail == IOPS_DEBUG_MALLOC_STEP)
442 (iops_debug_t*) malloc(avail * sizeof(iops_debug_t));
444 iops_debug[index] = (iops_debug_t*) realloc(*iops,
445 avail * sizeof(iops_debug_t));
446 if (!iops_debug[index]) {
447 printf("check_iops: Can't %salloc %lu bytes for index %d\n",
448 (avail == IOPS_DEBUG_MALLOC_STEP) ? "m" : "re",
449 avail * sizeof(iops_debug_t), index);
453 iops = iops_debug[index];
455 iops[used].line = line;
456 (void) strncpy(iops[used].file, file, MAX_FILE_NAME_LENGTH);
459 fprintf(inode_debug_log, "%s: file %s, line %d\n", fun, file, line);
460 fflush(inode_debug_log);
462 #endif /* AFS_DEBUG_IOPS */