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>
17 #include <sys/errno.h>
18 #include <afs/afs_args.h>
20 #if defined(AFS_SUN_ENV) && !defined(AFS_SUN5_ENV)
28 #ifdef AFS_SGI_XFS_IOPS_ENV
32 #include "afssyscalls.h"
35 FILE *inode_debug_log; /* If set, write to this file. */
36 /* Indices used for database arrays. */
42 static void check_iops(int index, char *fun, char *file, int line);
43 #endif /* AFS_DEBUG_IOPS */
47 * in VRMIX, system calls look just like function calls, so we don't
48 * need to do anything!
52 #if defined(AFS_SGI_ENV)
54 #include <sys/types.h>
55 #endif /* AFS_SGI61_ENV */
57 #pragma weak xicreate = icreate
58 #pragma weak xiinc = iinc
59 #pragma weak xidec = idec
60 #pragma weak xiopen = iopen
61 #pragma weak xlsetpag = lsetpag
62 #pragma weak xlpioctl = lpioctl
64 #pragma weak xiread = iread
65 #pragma weak xiwrite = iwrite
69 icreate(int dev, int near_inode, int param1, int param2, int param3,
73 (AFS_ICREATE, dev, near_inode, param1, param2, param3, param4));
77 iopen(int dev, int inode, int usrmod)
79 return (syscall(AFS_IOPEN, dev, inode, usrmod));
83 iinc(int dev, int inode, int inode_p1)
85 return (syscall(AFS_IINC, dev, inode, inode_p1));
89 idec(int dev, int inode, int inode_p1)
91 return (syscall(AFS_IDEC, dev, inode, inode_p1));
95 #ifdef AFS_SGI_XFS_IOPS_ENV
97 icreatename64(int dev, char *partname, int p0, int p1, int p2, int p3)
101 afs_inode_params_t param;
103 /* Use an array so we don't widen the syscall interface. */
109 afs_syscall(AFSCALL_ICREATENAME64, dev, partname,
110 1 + strlen(partname), param, &ino);
112 return (uint64_t) - 1;
117 iopen64(int dev, uint64_t inode, int usrmod)
120 (AFS_IOPEN64, dev, (u_int) ((inode >> 32) & 0xffffffff),
121 (u_int) (inode & 0xffffffff), usrmod));
125 iinc64(int dev, uint64_t inode, int inode_p1)
128 (AFSCALL_IINC64, dev, (u_int) ((inode >> 32) & 0xffffffff),
129 (u_int) (inode & 0xffffffff), inode_p1));
133 idec64(int dev, uint64_t inode, int inode_p1)
136 (AFSCALL_IDEC64, dev, (u_int) ((inode >> 32) & 0xffffffff),
137 (u_int) (inode & 0xffffffff), inode_p1));
141 ilistinode64(int dev, uint64_t inode, void *data, int *datalen)
144 (AFSCALL_ILISTINODE64, dev, (u_int) ((inode >> 32) & 0xffffffff),
145 (u_int) (inode & 0xffffffff), data, datalen));
148 #ifdef AFS_DEBUG_IOPS
150 debug_icreatename64(int dev, char *partname, int p0, int p1, int p2, int p3,
151 char *file, int line)
153 check_iops(CREATE_I, "icreatename64", file, line);
154 return icreatename64(dev, partname, p0, p1, p2, p3);
158 debug_iopen64(int dev, uint64_t inode, int usrmod, char *file, int line)
160 check_iops(OPEN_I, "iopen64", file, line);
161 return iopen64(dev, inode, usrmod);
165 debug_iinc64(int dev, uint64_t inode, int inode_p1, char *file, int line)
167 check_iops(INC_I, "iinc64", file, line);
168 return iinc64(dev, inode, inode_p1);
172 debug_idec64(int dev, uint64_t inode, int inode_p1, char *file, int line)
174 check_iops(DEC_I, "idec64", file, line);
175 return idec64(dev, inode, inode_p1);
178 #endif /* AFS_DEBUG_IOPS */
179 #endif /* AFS_SGI_XFS_IOPS_ENV */
181 #ifdef AFS_SGI_VNODE_GLUE
182 /* flag: 1 = has NUMA, 0 = no NUMA, -1 = kernel decides. */
184 afs_init_kernel_config(int flag)
186 return afs_syscall(AFSCALL_INIT_KERNEL_CONFIG, flag);
191 /* iread and iwrite are deprecated interfaces. Use inode_read and inode_write instead. */
193 iread(int dev, int inode, int inode_p1, unsigned int offset, char *cbuf,
196 return (syscall(AFS_IREAD, dev, inode, inode_p1, offset, cbuf, count));
200 iwrite(int dev, int inode, int inode_p1, unsigned int offset, char *cbuf,
203 return (syscall(AFS_IWRITE, dev, inode, inode_p1, offset, cbuf, count));
210 return (syscall(AFS_SETPAG));
214 lpioctl(char *path, int cmd, char *cmarg, int follow)
216 return (syscall(AFS_PIOCTL, path, cmd, cmarg, follow));
218 #else /* AFS_SGI_ENV */
220 #ifndef AFS_NAMEI_ENV
228 /* 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) */
230 /* Also since we're limited to 6 parameters/call, in some calls (icreate,
231 iread, iwrite) we combine some in a structure */
234 icreate(int dev, int near_inode, int param1, int param2, int param3,
238 struct iparam iparams;
240 iparams.param1 = param1;
241 iparams.param2 = param2;
242 iparams.param3 = param3;
243 iparams.param4 = param4;
246 syscall(AFS_SYSCALL, AFSCALL_ICREATE, dev, near_inode, &iparams);
252 iopen(int dev, int inode, int usrmod)
256 errcode = syscall(AFS_SYSCALL, AFSCALL_IOPEN, dev, inode, usrmod);
262 iinc(int dev, int inode, int inode_p1)
266 errcode = syscall(AFS_SYSCALL, AFSCALL_IINC, dev, inode, inode_p1);
272 idec(int dev, int inode, int inode_p1)
276 errcode = syscall(AFS_SYSCALL, AFSCALL_IDEC, dev, inode, inode_p1);
283 iread(int dev, int inode, int inode_p1, unsigned int offset, char *cbuf,
287 struct iparam iparams;
289 iparams.param1 = inode_p1;
290 iparams.param2 = offset;
291 iparams.param3 = (long)cbuf;
292 iparams.param4 = count;
293 errcode = syscall(AFS_SYSCALL, AFSCALL_IREAD, dev, inode, &iparams);
298 iwrite(int dev, int inode, int inode_p1, unsigned int offset, char *cbuf,
302 struct iparam iparams;
304 iparams.param1 = inode_p1;
305 iparams.param2 = offset;
306 iparams.param3 = (long)cbuf;
307 iparams.param4 = count;
309 errcode = syscall(AFS_SYSCALL, AFSCALL_IWRITE, dev, inode, &iparams);
314 #endif /* AFS_NAMEI_ENV */
321 errcode = syscall(AFS_SYSCALL, AFSCALL_SETPAG);
326 lpioctl(char *path, int cmd, char *cmarg, int follow)
330 errcode = syscall(AFS_SYSCALL, AFSCALL_PIOCTL, path, cmd, cmarg, follow);
334 #endif /* !AFS_SGI_ENV */
335 #endif /* !AFS_AIX32_ENV */
337 #ifndef AFS_NAMEI_ENV
340 inode_read(afs_int32 dev, Inode inode, afs_int32 inode_p1,
341 unsigned int offset, char *cbuf, unsigned int count)
347 fd = IOPEN(dev, inode, O_RDONLY);
351 code = lseek(fd, offset, SEEK_SET);
352 if (code != offset) {
355 code = read(fd, cbuf, count);
363 inode_write(afs_int32 dev, Inode inode, afs_int32 inode_p1,
364 unsigned int offset, char *cbuf, unsigned int count)
369 fd = IOPEN(dev, inode, O_WRONLY);
373 code = lseek(fd, offset, SEEK_SET);
374 if (code != offset) {
377 code = write(fd, cbuf, count);
386 * returns a static string used to print either 32 or 64 bit inode numbers.
388 #ifdef AFS_64BIT_IOPS_ENV
390 PrintInode(char *s, Inode ino)
393 PrintInode(afs_ino_str_t s, Inode ino)
396 static afs_ino_str_t result;
401 #ifdef AFS_64BIT_IOPS_ENV
402 (void)sprintf((char *)s, "%llu", ino);
404 (void)sprintf((char *)s, "%u", ino);
408 #endif /* AFS_NAMEI_ENV */
411 #ifdef AFS_DEBUG_IOPS
412 #define MAX_FILE_NAME_LENGTH 32
415 char file[MAX_FILE_NAME_LENGTH];
417 int iops_debug_n_avail[MAX_I + 1];
418 int iops_debug_n_used[MAX_I + 1];
419 iops_debug_t *iops_debug[MAX_I + 1];
420 #define IOPS_DEBUG_MALLOC_STEP 64
423 * Returns 1 if first time we've seen this file/line.
424 * Puts file/line in array so we only print the first time we encounter
428 check_iops(int index, char *fun, char *file, int line)
431 int *availp = &iops_debug_n_avail[index];
432 int *usedp = &iops_debug_n_used[index];
433 iops_debug_t *iops = iops_debug[index];
436 if (!inode_debug_log)
441 for (i = 0; i < used; i++) {
442 if (line == iops[i].line) {
443 if (!strncmp(file, iops[i].file, MAX_FILE_NAME_LENGTH)) {
444 /* We've already entered this one. */
451 /* Not found, enter into db. */
452 if (used >= *availp) {
454 avail += IOPS_DEBUG_MALLOC_STEP;
455 if (avail == IOPS_DEBUG_MALLOC_STEP)
457 (iops_debug_t *) malloc(avail * sizeof(iops_debug_t));
460 (iops_debug_t *) realloc(*iops, avail * sizeof(iops_debug_t));
461 if (!iops_debug[index]) {
462 printf("check_iops: Can't %salloc %lu bytes for index %d\n",
463 (avail == IOPS_DEBUG_MALLOC_STEP) ? "m" : "re",
464 avail * sizeof(iops_debug_t), index);
468 iops = iops_debug[index];
470 iops[used].line = line;
471 (void)strncpy(iops[used].file, file, MAX_FILE_NAME_LENGTH);
474 fprintf(inode_debug_log, "%s: file %s, line %d\n", fun, file, line);
475 fflush(inode_debug_log);
477 #endif /* AFS_DEBUG_IOPS */