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>
15 #include <sys/errno.h>
16 #include <afs/afs_args.h>
18 #include <sys/ioctl.h>
19 #if defined(AFS_SUN_ENV) && !defined(AFS_SUN5_ENV)
27 #ifdef AFS_SGI_XFS_IOPS_ENV
31 #include "afssyscalls.h"
34 FILE *inode_debug_log; /* If set, write to this file. */
35 /* Indices used for database arrays. */
41 static void check_iops(int index, char *fun, char *file, int line);
42 #endif /* AFS_DEBUG_IOPS */
46 * in VRMIX, system calls look just like function calls, so we don't
47 * need to do anything!
51 #if defined(AFS_SGI_ENV)
53 #include <sys/types.h>
54 #endif /* AFS_SGI61_ENV */
56 #pragma weak xicreate = icreate
57 #pragma weak xiinc = iinc
58 #pragma weak xidec = idec
59 #pragma weak xiopen = iopen
61 #pragma weak xiread = iread
62 #pragma weak xiwrite = iwrite
66 icreate(int dev, int near_inode, int param1, int param2, int param3,
70 (AFS_ICREATE, dev, near_inode, param1, param2, param3, param4));
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. */
106 afs_syscall(AFSCALL_ICREATENAME64, dev, partname,
107 1 + strlen(partname), param, &ino);
109 return (uint64_t) - 1;
114 iopen64(int dev, uint64_t inode, int usrmod)
117 (AFS_IOPEN64, dev, (u_int) ((inode >> 32) & 0xffffffff),
118 (u_int) (inode & 0xffffffff), usrmod));
122 iinc64(int dev, uint64_t inode, int inode_p1)
125 (AFSCALL_IINC64, dev, (u_int) ((inode >> 32) & 0xffffffff),
126 (u_int) (inode & 0xffffffff), inode_p1));
130 idec64(int dev, uint64_t inode, int inode_p1)
133 (AFSCALL_IDEC64, dev, (u_int) ((inode >> 32) & 0xffffffff),
134 (u_int) (inode & 0xffffffff), inode_p1));
138 ilistinode64(int dev, uint64_t inode, void *data, int *datalen)
141 (AFSCALL_ILISTINODE64, dev, (u_int) ((inode >> 32) & 0xffffffff),
142 (u_int) (inode & 0xffffffff), data, datalen));
145 #ifdef AFS_DEBUG_IOPS
147 debug_icreatename64(int dev, char *partname, int p0, int p1, int p2, int p3,
148 char *file, int line)
150 check_iops(CREATE_I, "icreatename64", file, line);
151 return icreatename64(dev, partname, p0, p1, p2, p3);
155 debug_iopen64(int dev, uint64_t inode, int usrmod, char *file, int line)
157 check_iops(OPEN_I, "iopen64", file, line);
158 return iopen64(dev, inode, usrmod);
162 debug_iinc64(int dev, uint64_t inode, int inode_p1, char *file, int line)
164 check_iops(INC_I, "iinc64", file, line);
165 return iinc64(dev, inode, inode_p1);
169 debug_idec64(int dev, uint64_t inode, int inode_p1, char *file, int line)
171 check_iops(DEC_I, "idec64", file, line);
172 return idec64(dev, inode, inode_p1);
175 #endif /* AFS_DEBUG_IOPS */
176 #endif /* AFS_SGI_XFS_IOPS_ENV */
178 #ifdef AFS_SGI_VNODE_GLUE
179 /* flag: 1 = has NUMA, 0 = no NUMA, -1 = kernel decides. */
181 afs_init_kernel_config(int flag)
183 return afs_syscall(AFSCALL_INIT_KERNEL_CONFIG, flag);
188 /* iread and iwrite are deprecated interfaces. Use inode_read and inode_write instead. */
190 iread(int dev, int inode, int inode_p1, unsigned int offset, char *cbuf,
193 return (syscall(AFS_IREAD, dev, inode, inode_p1, offset, cbuf, count));
197 iwrite(int dev, int inode, int inode_p1, unsigned int offset, char *cbuf,
200 return (syscall(AFS_IWRITE, dev, inode, inode_p1, offset, cbuf, count));
204 #else /* AFS_SGI_ENV */
206 #ifndef AFS_NAMEI_ENV
214 /* 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) */
216 /* Also since we're limited to 6 parameters/call, in some calls (icreate,
217 iread, iwrite) we combine some in a structure */
220 icreate(int dev, int near_inode, int param1, int param2, int param3,
224 struct iparam iparams;
226 iparams.param1 = param1;
227 iparams.param2 = param2;
228 iparams.param3 = param3;
229 iparams.param4 = param4;
232 syscall(AFS_SYSCALL, AFSCALL_ICREATE, dev, near_inode, &iparams);
238 iopen(int dev, int inode, int usrmod)
242 errcode = syscall(AFS_SYSCALL, AFSCALL_IOPEN, dev, inode, usrmod);
248 iinc(int dev, int inode, int inode_p1)
252 errcode = syscall(AFS_SYSCALL, AFSCALL_IINC, dev, inode, inode_p1);
258 idec(int dev, int inode, int inode_p1)
262 errcode = syscall(AFS_SYSCALL, AFSCALL_IDEC, dev, inode, inode_p1);
269 iread(int dev, int inode, int inode_p1, unsigned int offset, char *cbuf,
273 struct iparam iparams;
275 iparams.param1 = inode_p1;
276 iparams.param2 = offset;
277 iparams.param3 = (long)cbuf;
278 iparams.param4 = count;
279 errcode = syscall(AFS_SYSCALL, AFSCALL_IREAD, dev, inode, &iparams);
284 iwrite(int dev, int inode, int inode_p1, unsigned int offset, char *cbuf,
288 struct iparam iparams;
290 iparams.param1 = inode_p1;
291 iparams.param2 = offset;
292 iparams.param3 = (long)cbuf;
293 iparams.param4 = count;
295 errcode = syscall(AFS_SYSCALL, AFSCALL_IWRITE, dev, inode, &iparams);
300 #endif /* AFS_NAMEI_ENV */
302 #endif /* !AFS_SGI_ENV */
303 #endif /* !AFS_AIX32_ENV */
305 #ifndef AFS_NAMEI_ENV
308 inode_read(afs_int32 dev, Inode inode, afs_int32 inode_p1,
309 unsigned int offset, char *cbuf, unsigned int count)
315 fd = IOPEN(dev, inode, O_RDONLY);
319 code = lseek(fd, offset, SEEK_SET);
320 if (code != offset) {
323 code = read(fd, cbuf, count);
331 inode_write(afs_int32 dev, Inode inode, afs_int32 inode_p1,
332 unsigned int offset, char *cbuf, unsigned int count)
337 fd = IOPEN(dev, inode, O_WRONLY);
341 code = lseek(fd, offset, SEEK_SET);
342 if (code != offset) {
345 code = write(fd, cbuf, count);
354 * returns a static string used to print either 32 or 64 bit inode numbers.
356 #ifdef AFS_64BIT_IOPS_ENV
358 PrintInode(char *s, Inode ino)
361 PrintInode(afs_ino_str_t s, Inode ino)
364 static afs_ino_str_t result;
369 #ifdef AFS_64BIT_IOPS_ENV
370 (void)sprintf((char *)s, "%llu", ino);
372 (void)sprintf((char *)s, "%u", ino);
376 #endif /* AFS_NAMEI_ENV */
379 #ifdef AFS_DEBUG_IOPS
380 #define MAX_FILE_NAME_LENGTH 32
383 char file[MAX_FILE_NAME_LENGTH];
385 int iops_debug_n_avail[MAX_I + 1];
386 int iops_debug_n_used[MAX_I + 1];
387 iops_debug_t *iops_debug[MAX_I + 1];
388 #define IOPS_DEBUG_MALLOC_STEP 64
391 * Returns 1 if first time we've seen this file/line.
392 * Puts file/line in array so we only print the first time we encounter
396 check_iops(int index, char *fun, char *file, int line)
399 int *availp = &iops_debug_n_avail[index];
400 int *usedp = &iops_debug_n_used[index];
401 iops_debug_t *iops = iops_debug[index];
404 if (!inode_debug_log)
409 for (i = 0; i < used; i++) {
410 if (line == iops[i].line) {
411 if (!strncmp(file, iops[i].file, MAX_FILE_NAME_LENGTH)) {
412 /* We've already entered this one. */
419 /* Not found, enter into db. */
420 if (used >= *availp) {
422 avail += IOPS_DEBUG_MALLOC_STEP;
423 if (avail == IOPS_DEBUG_MALLOC_STEP)
425 (iops_debug_t *) malloc(avail * sizeof(iops_debug_t));
428 (iops_debug_t *) realloc(*iops, avail * sizeof(iops_debug_t));
429 if (!iops_debug[index]) {
430 printf("check_iops: Can't %salloc %lu bytes for index %d\n",
431 (avail == IOPS_DEBUG_MALLOC_STEP) ? "m" : "re",
432 avail * sizeof(iops_debug_t), index);
436 iops = iops_debug[index];
438 iops[used].line = line;
439 (void)strncpy(iops[used].file, file, MAX_FILE_NAME_LENGTH);
442 fprintf(inode_debug_log, "%s: file %s, line %d\n", fun, file, line);
443 fflush(inode_debug_log);
445 #endif /* AFS_DEBUG_IOPS */