1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 23*0Sstevel@tonic-gate /* 24*0Sstevel@tonic-gate * Copyright (c) 1992,1996, by Sun Microsystems, Inc. 25*0Sstevel@tonic-gate * All rights reserved. 26*0Sstevel@tonic-gate */ 27*0Sstevel@tonic-gate 28*0Sstevel@tonic-gate /* 29*0Sstevel@tonic-gate * common routines for parallelization (used by both fsck and quotacheck) 30*0Sstevel@tonic-gate */ 31*0Sstevel@tonic-gate #include <stdio.h> 32*0Sstevel@tonic-gate #include <fcntl.h> 33*0Sstevel@tonic-gate #include <dlfcn.h> 34*0Sstevel@tonic-gate #include <macros.h> 35*0Sstevel@tonic-gate #include <sys/types.h> 36*0Sstevel@tonic-gate #include <sys/wait.h> 37*0Sstevel@tonic-gate #include <sys/mntent.h> 38*0Sstevel@tonic-gate #include <sys/dkio.h> 39*0Sstevel@tonic-gate 40*0Sstevel@tonic-gate /* 41*0Sstevel@tonic-gate * data structures for parallelization 42*0Sstevel@tonic-gate */ 43*0Sstevel@tonic-gate static struct driver { 44*0Sstevel@tonic-gate char *name; /* driver name (from DKIOCINFO) */ 45*0Sstevel@tonic-gate uint_t mapsize; /* size of `busymap' */ 46*0Sstevel@tonic-gate uint_t *busymap; /* bitmask of active units */ 47*0Sstevel@tonic-gate int (*choosefunc)(); /* driver specific chooser */ 48*0Sstevel@tonic-gate void *data; /* driver private data */ 49*0Sstevel@tonic-gate }; 50*0Sstevel@tonic-gate 51*0Sstevel@tonic-gate static struct onedev { 52*0Sstevel@tonic-gate int drvid; /* index in driver array */ 53*0Sstevel@tonic-gate uint_t mapsize; /* size of `unitmap' */ 54*0Sstevel@tonic-gate uint_t *unitmap; /* unit #'s (from DKIOCINFO) */ 55*0Sstevel@tonic-gate struct onedev *nxtdev; 56*0Sstevel@tonic-gate }; 57*0Sstevel@tonic-gate 58*0Sstevel@tonic-gate static struct rawdev { 59*0Sstevel@tonic-gate char *devname; /* name passed to preen_addev */ 60*0Sstevel@tonic-gate struct onedev *alldevs; /* info about each component device */ 61*0Sstevel@tonic-gate struct rawdev *nxtrd; /* next entry in list */ 62*0Sstevel@tonic-gate }; 63*0Sstevel@tonic-gate 64*0Sstevel@tonic-gate static int debug = 0; 65*0Sstevel@tonic-gate 66*0Sstevel@tonic-gate /* 67*0Sstevel@tonic-gate * defines used in building shared object names 68*0Sstevel@tonic-gate */ 69*0Sstevel@tonic-gate 70*0Sstevel@tonic-gate /* the directory where we find shared objects */ 71*0Sstevel@tonic-gate #define OBJECT_DIRECTORY "/usr/lib/drv" 72*0Sstevel@tonic-gate 73*0Sstevel@tonic-gate /* a shared object name is OBJECT_PREFIX || driver_name */ 74*0Sstevel@tonic-gate #define OBJECT_PREFIX "preen_" 75*0Sstevel@tonic-gate 76*0Sstevel@tonic-gate /* the version of the driver interface we support */ 77*0Sstevel@tonic-gate #define OBJECT_VERSION 1 78*0Sstevel@tonic-gate 79*0Sstevel@tonic-gate /* the "build" entry point for a driver specific object is named this */ 80*0Sstevel@tonic-gate #define BUILD_ENTRY preen_build_devs 81*0Sstevel@tonic-gate #define BUILD_NAME "preen_build_devs" 82*0Sstevel@tonic-gate 83*0Sstevel@tonic-gate #define DRIVER_ALLOC 10 84*0Sstevel@tonic-gate static int ndrivers, ndalloc; 85*0Sstevel@tonic-gate static struct driver *dlist; 86*0Sstevel@tonic-gate 87*0Sstevel@tonic-gate static struct rawdev *unchecked, *active, *get_runnable(); 88*0Sstevel@tonic-gate static struct onedev *alloc_dev(); 89*0Sstevel@tonic-gate static int chooseone(); 90*0Sstevel@tonic-gate 91*0Sstevel@tonic-gate #define WORDSIZE (NBBY * sizeof (uint_t)) 92*0Sstevel@tonic-gate 93*0Sstevel@tonic-gate void preen_addunit(void *, char *, int (*)(), void *, uint_t); 94*0Sstevel@tonic-gate int preen_subdev(char *, struct dk_cinfo *, void *); 95*0Sstevel@tonic-gate 96*0Sstevel@tonic-gate static int alloc_driver(char *, int (*)(), void *); 97*0Sstevel@tonic-gate static void addunit(struct onedev *, uint_t); 98*0Sstevel@tonic-gate static void makebusy(struct onedev *); 99*0Sstevel@tonic-gate static void notbusy(struct rawdev *); 100*0Sstevel@tonic-gate 101*0Sstevel@tonic-gate /* 102*0Sstevel@tonic-gate * add the given device to the list of devices to be checked 103*0Sstevel@tonic-gate */ 104*0Sstevel@tonic-gate preen_addev(char *devnm) 105*0Sstevel@tonic-gate { 106*0Sstevel@tonic-gate struct rawdev *rdp; 107*0Sstevel@tonic-gate int fd; 108*0Sstevel@tonic-gate struct dk_cinfo dki; 109*0Sstevel@tonic-gate extern char *strdup(); 110*0Sstevel@tonic-gate 111*0Sstevel@tonic-gate if ((fd = open64(devnm, O_RDONLY)) == -1) { 112*0Sstevel@tonic-gate perror(devnm); 113*0Sstevel@tonic-gate return (-1); 114*0Sstevel@tonic-gate } 115*0Sstevel@tonic-gate if (ioctl(fd, DKIOCINFO, &dki) == -1) { 116*0Sstevel@tonic-gate perror("DKIOCINFO"); 117*0Sstevel@tonic-gate fprintf(stderr, "device: `%s'\n", devnm); 118*0Sstevel@tonic-gate (void) close(fd); 119*0Sstevel@tonic-gate return (-1); 120*0Sstevel@tonic-gate } 121*0Sstevel@tonic-gate (void) close(fd); 122*0Sstevel@tonic-gate if ((rdp = (struct rawdev *)malloc(sizeof (struct rawdev))) == NULL) { 123*0Sstevel@tonic-gate (void) fprintf(stderr, "out of memory in preenlib\n"); 124*0Sstevel@tonic-gate return (-1); 125*0Sstevel@tonic-gate } 126*0Sstevel@tonic-gate if ((rdp->devname = strdup(devnm)) == NULL) { 127*0Sstevel@tonic-gate (void) fprintf(stderr, "out of memory in preenlib\n"); 128*0Sstevel@tonic-gate return (-1); 129*0Sstevel@tonic-gate } 130*0Sstevel@tonic-gate rdp->alldevs = NULL; 131*0Sstevel@tonic-gate rdp->nxtrd = NULL; 132*0Sstevel@tonic-gate 133*0Sstevel@tonic-gate if (preen_subdev(devnm, &dki, (void *)rdp)) { 134*0Sstevel@tonic-gate preen_addunit(rdp, dki.dki_dname, NULL, NULL, dki.dki_unit); 135*0Sstevel@tonic-gate } 136*0Sstevel@tonic-gate 137*0Sstevel@tonic-gate rdp->nxtrd = unchecked; 138*0Sstevel@tonic-gate unchecked = rdp; 139*0Sstevel@tonic-gate return (0); 140*0Sstevel@tonic-gate } 141*0Sstevel@tonic-gate 142*0Sstevel@tonic-gate preen_subdev(char *name, struct dk_cinfo *dkiop, void *dp) 143*0Sstevel@tonic-gate { 144*0Sstevel@tonic-gate char modname[255]; 145*0Sstevel@tonic-gate void *dlhandle; 146*0Sstevel@tonic-gate int (*fptr)(); 147*0Sstevel@tonic-gate 148*0Sstevel@tonic-gate (void) sprintf(modname, "%s/%s%s.so.%d", 149*0Sstevel@tonic-gate OBJECT_DIRECTORY, OBJECT_PREFIX, dkiop->dki_dname, OBJECT_VERSION); 150*0Sstevel@tonic-gate dlhandle = dlopen(modname, RTLD_LAZY); 151*0Sstevel@tonic-gate if (dlhandle == NULL) { 152*0Sstevel@tonic-gate if (debug) 153*0Sstevel@tonic-gate (void) fprintf(stderr, "preen_subdev: %s\n", dlerror()); 154*0Sstevel@tonic-gate return (1); 155*0Sstevel@tonic-gate } 156*0Sstevel@tonic-gate fptr = (int (*)())dlsym(dlhandle, BUILD_NAME); 157*0Sstevel@tonic-gate if (fptr == NULL) { 158*0Sstevel@tonic-gate if (debug) 159*0Sstevel@tonic-gate (void) fprintf(stderr, "preen_subdev: %s\n", dlerror()); 160*0Sstevel@tonic-gate return (1); 161*0Sstevel@tonic-gate } 162*0Sstevel@tonic-gate (*fptr)(name, dkiop, dp); 163*0Sstevel@tonic-gate return (0); 164*0Sstevel@tonic-gate } 165*0Sstevel@tonic-gate 166*0Sstevel@tonic-gate /* 167*0Sstevel@tonic-gate * select a device from the "unchecked" list, and add it to the 168*0Sstevel@tonic-gate * active list. 169*0Sstevel@tonic-gate */ 170*0Sstevel@tonic-gate preen_getdev(char *devnm) 171*0Sstevel@tonic-gate { 172*0Sstevel@tonic-gate struct rawdev *rdp; 173*0Sstevel@tonic-gate register struct onedev *dp; 174*0Sstevel@tonic-gate 175*0Sstevel@tonic-gate if (unchecked == NULL) 176*0Sstevel@tonic-gate return (0); 177*0Sstevel@tonic-gate 178*0Sstevel@tonic-gate rdp = get_runnable(&unchecked); 179*0Sstevel@tonic-gate 180*0Sstevel@tonic-gate if (rdp) { 181*0Sstevel@tonic-gate for (dp = rdp->alldevs; dp; dp = dp->nxtdev) { 182*0Sstevel@tonic-gate makebusy(dp); 183*0Sstevel@tonic-gate } 184*0Sstevel@tonic-gate rdp->nxtrd = active; 185*0Sstevel@tonic-gate active = rdp; 186*0Sstevel@tonic-gate (void) strcpy(devnm, rdp->devname); 187*0Sstevel@tonic-gate return (1); 188*0Sstevel@tonic-gate } else { 189*0Sstevel@tonic-gate return (2); 190*0Sstevel@tonic-gate } 191*0Sstevel@tonic-gate } 192*0Sstevel@tonic-gate 193*0Sstevel@tonic-gate preen_releasedev(char *name) 194*0Sstevel@tonic-gate { 195*0Sstevel@tonic-gate register struct rawdev *dp, *ldp; 196*0Sstevel@tonic-gate 197*0Sstevel@tonic-gate for (ldp = NULL, dp = active; dp != NULL; ldp = dp, dp = dp->nxtrd) { 198*0Sstevel@tonic-gate if (strcmp(dp->devname, name) == 0) 199*0Sstevel@tonic-gate break; 200*0Sstevel@tonic-gate } 201*0Sstevel@tonic-gate 202*0Sstevel@tonic-gate if (dp == NULL) 203*0Sstevel@tonic-gate return (-1); 204*0Sstevel@tonic-gate if (ldp != NULL) { 205*0Sstevel@tonic-gate ldp->nxtrd = dp->nxtrd; 206*0Sstevel@tonic-gate } else { 207*0Sstevel@tonic-gate active = dp->nxtrd; 208*0Sstevel@tonic-gate } 209*0Sstevel@tonic-gate 210*0Sstevel@tonic-gate notbusy(dp); 211*0Sstevel@tonic-gate /* 212*0Sstevel@tonic-gate * free(dp->devname); 213*0Sstevel@tonic-gate * free(dp); 214*0Sstevel@tonic-gate */ 215*0Sstevel@tonic-gate return (0); 216*0Sstevel@tonic-gate } 217*0Sstevel@tonic-gate 218*0Sstevel@tonic-gate static 219*0Sstevel@tonic-gate struct rawdev * 220*0Sstevel@tonic-gate get_runnable(struct rawdev **devlist) 221*0Sstevel@tonic-gate { 222*0Sstevel@tonic-gate register struct rawdev *last, *rdp; 223*0Sstevel@tonic-gate register struct onedev *devp; 224*0Sstevel@tonic-gate register struct driver *drvp; 225*0Sstevel@tonic-gate int rc = 1; 226*0Sstevel@tonic-gate 227*0Sstevel@tonic-gate for (last = NULL, rdp = *devlist; rdp; last = rdp, rdp = rdp->nxtrd) { 228*0Sstevel@tonic-gate for (devp = rdp->alldevs; devp != NULL; devp = devp->nxtdev) { 229*0Sstevel@tonic-gate drvp = &dlist[devp->drvid]; 230*0Sstevel@tonic-gate rc = (*drvp->choosefunc)(devp->mapsize, devp->unitmap, 231*0Sstevel@tonic-gate drvp->mapsize, drvp->busymap); 232*0Sstevel@tonic-gate if (rc != 0) 233*0Sstevel@tonic-gate break; 234*0Sstevel@tonic-gate } 235*0Sstevel@tonic-gate if (rc == 0) 236*0Sstevel@tonic-gate break; 237*0Sstevel@tonic-gate } 238*0Sstevel@tonic-gate 239*0Sstevel@tonic-gate /* 240*0Sstevel@tonic-gate * remove from list... 241*0Sstevel@tonic-gate */ 242*0Sstevel@tonic-gate if (rdp) { 243*0Sstevel@tonic-gate if (last) { 244*0Sstevel@tonic-gate last->nxtrd = rdp->nxtrd; 245*0Sstevel@tonic-gate } else { 246*0Sstevel@tonic-gate *devlist = rdp->nxtrd; 247*0Sstevel@tonic-gate } 248*0Sstevel@tonic-gate } 249*0Sstevel@tonic-gate 250*0Sstevel@tonic-gate return (rdp); 251*0Sstevel@tonic-gate } 252*0Sstevel@tonic-gate 253*0Sstevel@tonic-gate /* 254*0Sstevel@tonic-gate * add the given driver/unit reference to the `rawdev' structure identified 255*0Sstevel@tonic-gate * by `cookie' 256*0Sstevel@tonic-gate * If a new `driver' structure needs to be created, associate the given 257*0Sstevel@tonic-gate * choosing function and driver private data with it. 258*0Sstevel@tonic-gate */ 259*0Sstevel@tonic-gate void 260*0Sstevel@tonic-gate preen_addunit( 261*0Sstevel@tonic-gate void *cookie, 262*0Sstevel@tonic-gate char *dname, /* driver name */ 263*0Sstevel@tonic-gate int (*cf)(), /* candidate choosing function */ 264*0Sstevel@tonic-gate void *datap, /* driver private data */ 265*0Sstevel@tonic-gate uint_t unit) /* unit number */ 266*0Sstevel@tonic-gate { 267*0Sstevel@tonic-gate register int drvid; 268*0Sstevel@tonic-gate register struct driver *dp; 269*0Sstevel@tonic-gate register struct onedev *devp; 270*0Sstevel@tonic-gate struct rawdev *rdp = (struct rawdev *)cookie; 271*0Sstevel@tonic-gate 272*0Sstevel@tonic-gate /* 273*0Sstevel@tonic-gate * locate the driver struct 274*0Sstevel@tonic-gate */ 275*0Sstevel@tonic-gate dp = NULL; 276*0Sstevel@tonic-gate for (drvid = 0; drvid < ndrivers; drvid++) { 277*0Sstevel@tonic-gate if (strcmp(dlist[drvid].name, dname) == 0) { 278*0Sstevel@tonic-gate dp = &dlist[drvid]; 279*0Sstevel@tonic-gate break; 280*0Sstevel@tonic-gate } 281*0Sstevel@tonic-gate } 282*0Sstevel@tonic-gate 283*0Sstevel@tonic-gate if (dp == NULL) { 284*0Sstevel@tonic-gate /* 285*0Sstevel@tonic-gate * driver struct doesn't exist yet -- create one 286*0Sstevel@tonic-gate */ 287*0Sstevel@tonic-gate if (cf == NULL) 288*0Sstevel@tonic-gate cf = chooseone; 289*0Sstevel@tonic-gate drvid = alloc_driver(dname, cf, datap); 290*0Sstevel@tonic-gate dp = &dlist[drvid]; 291*0Sstevel@tonic-gate } 292*0Sstevel@tonic-gate 293*0Sstevel@tonic-gate for (devp = rdp->alldevs; devp != NULL; devp = devp->nxtdev) { 294*0Sstevel@tonic-gate /* 295*0Sstevel@tonic-gate * see if this device already references the given driver 296*0Sstevel@tonic-gate */ 297*0Sstevel@tonic-gate if (devp->drvid == drvid) 298*0Sstevel@tonic-gate break; 299*0Sstevel@tonic-gate } 300*0Sstevel@tonic-gate 301*0Sstevel@tonic-gate if (devp == NULL) { 302*0Sstevel@tonic-gate /* 303*0Sstevel@tonic-gate * allocate a new `struct onedev' and chain it in 304*0Sstevel@tonic-gate * rdp->alldevs... 305*0Sstevel@tonic-gate */ 306*0Sstevel@tonic-gate devp = alloc_dev(drvid); 307*0Sstevel@tonic-gate devp->nxtdev = rdp->alldevs; 308*0Sstevel@tonic-gate rdp->alldevs = devp; 309*0Sstevel@tonic-gate } 310*0Sstevel@tonic-gate 311*0Sstevel@tonic-gate /* 312*0Sstevel@tonic-gate * add `unit' to the unitmap in devp 313*0Sstevel@tonic-gate */ 314*0Sstevel@tonic-gate addunit(devp, unit); 315*0Sstevel@tonic-gate } 316*0Sstevel@tonic-gate 317*0Sstevel@tonic-gate static 318*0Sstevel@tonic-gate int 319*0Sstevel@tonic-gate alloc_driver(char *name, int (*cf)(), void *datap) 320*0Sstevel@tonic-gate { 321*0Sstevel@tonic-gate register struct driver *dp; 322*0Sstevel@tonic-gate extern char *strdup(); 323*0Sstevel@tonic-gate 324*0Sstevel@tonic-gate if (ndrivers == ndalloc) { 325*0Sstevel@tonic-gate dlist = ndalloc ? 326*0Sstevel@tonic-gate (struct driver *) 327*0Sstevel@tonic-gate realloc(dlist, sizeof (struct driver) * DRIVER_ALLOC) : 328*0Sstevel@tonic-gate (struct driver *) 329*0Sstevel@tonic-gate malloc(sizeof (struct driver) * DRIVER_ALLOC); 330*0Sstevel@tonic-gate if (dlist == NULL) { 331*0Sstevel@tonic-gate (void) fprintf(stderr, "out of memory in preenlib\n"); 332*0Sstevel@tonic-gate exit(1); 333*0Sstevel@tonic-gate } 334*0Sstevel@tonic-gate ndalloc += DRIVER_ALLOC; 335*0Sstevel@tonic-gate } 336*0Sstevel@tonic-gate 337*0Sstevel@tonic-gate dp = &dlist[ndrivers]; 338*0Sstevel@tonic-gate dp->name = strdup(name); 339*0Sstevel@tonic-gate if (dp->name == NULL) { 340*0Sstevel@tonic-gate (void) fprintf(stderr, "out of memory in preenlib\n"); 341*0Sstevel@tonic-gate exit(1); 342*0Sstevel@tonic-gate } 343*0Sstevel@tonic-gate dp->choosefunc = cf; 344*0Sstevel@tonic-gate dp->data = datap; 345*0Sstevel@tonic-gate dp->mapsize = 0; 346*0Sstevel@tonic-gate dp->busymap = NULL; 347*0Sstevel@tonic-gate return (ndrivers++); 348*0Sstevel@tonic-gate } 349*0Sstevel@tonic-gate 350*0Sstevel@tonic-gate static 351*0Sstevel@tonic-gate struct onedev * 352*0Sstevel@tonic-gate alloc_dev(int did) 353*0Sstevel@tonic-gate { 354*0Sstevel@tonic-gate register struct onedev *devp; 355*0Sstevel@tonic-gate 356*0Sstevel@tonic-gate devp = (struct onedev *)malloc(sizeof (struct onedev)); 357*0Sstevel@tonic-gate if (devp == NULL) { 358*0Sstevel@tonic-gate (void) fprintf(stderr, "out of memory in preenlib\n"); 359*0Sstevel@tonic-gate exit(1); 360*0Sstevel@tonic-gate } 361*0Sstevel@tonic-gate devp->drvid = did; 362*0Sstevel@tonic-gate devp->mapsize = 0; 363*0Sstevel@tonic-gate devp->unitmap = NULL; 364*0Sstevel@tonic-gate devp->nxtdev = NULL; 365*0Sstevel@tonic-gate return (devp); 366*0Sstevel@tonic-gate } 367*0Sstevel@tonic-gate 368*0Sstevel@tonic-gate static 369*0Sstevel@tonic-gate void 370*0Sstevel@tonic-gate addunit(struct onedev *devp, uint_t unit) 371*0Sstevel@tonic-gate { 372*0Sstevel@tonic-gate uint_t newsize; 373*0Sstevel@tonic-gate 374*0Sstevel@tonic-gate newsize = howmany(unit+1, WORDSIZE); 375*0Sstevel@tonic-gate if (devp->mapsize < newsize) { 376*0Sstevel@tonic-gate devp->unitmap = devp->mapsize ? 377*0Sstevel@tonic-gate (uint_t *)realloc(devp->unitmap, 378*0Sstevel@tonic-gate newsize * sizeof (uint_t)) : 379*0Sstevel@tonic-gate (uint_t *)malloc(newsize * sizeof (uint_t)); 380*0Sstevel@tonic-gate if (devp->unitmap == NULL) { 381*0Sstevel@tonic-gate (void) fprintf(stderr, "out of memory in preenlib\n"); 382*0Sstevel@tonic-gate exit(1); 383*0Sstevel@tonic-gate } 384*0Sstevel@tonic-gate (void) memset((char *)&devp->unitmap[devp->mapsize], 0, 385*0Sstevel@tonic-gate (uint_t)((newsize - devp->mapsize) * sizeof (uint_t))); 386*0Sstevel@tonic-gate devp->mapsize = newsize; 387*0Sstevel@tonic-gate } 388*0Sstevel@tonic-gate devp->unitmap[unit / WORDSIZE] |= (1 << (unit % WORDSIZE)); 389*0Sstevel@tonic-gate } 390*0Sstevel@tonic-gate 391*0Sstevel@tonic-gate static 392*0Sstevel@tonic-gate chooseone(int devmapsize, ulong_t *devmap, int drvmapsize, ulong_t *drvmap) 393*0Sstevel@tonic-gate { 394*0Sstevel@tonic-gate register int i; 395*0Sstevel@tonic-gate 396*0Sstevel@tonic-gate for (i = 0; i < min(devmapsize, drvmapsize); i++) { 397*0Sstevel@tonic-gate if (devmap[i] & drvmap[i]) 398*0Sstevel@tonic-gate return (1); 399*0Sstevel@tonic-gate } 400*0Sstevel@tonic-gate return (0); 401*0Sstevel@tonic-gate } 402*0Sstevel@tonic-gate 403*0Sstevel@tonic-gate /* 404*0Sstevel@tonic-gate * mark the given driver/unit pair as busy. This is called from 405*0Sstevel@tonic-gate * preen_getdev. 406*0Sstevel@tonic-gate */ 407*0Sstevel@tonic-gate static 408*0Sstevel@tonic-gate void 409*0Sstevel@tonic-gate makebusy(struct onedev *dev) 410*0Sstevel@tonic-gate { 411*0Sstevel@tonic-gate struct driver *drvp = &dlist[dev->drvid]; 412*0Sstevel@tonic-gate int newsize = dev->mapsize; 413*0Sstevel@tonic-gate register int i; 414*0Sstevel@tonic-gate 415*0Sstevel@tonic-gate if (drvp->mapsize < newsize) { 416*0Sstevel@tonic-gate drvp->busymap = drvp->mapsize ? 417*0Sstevel@tonic-gate (uint_t *)realloc(drvp->busymap, 418*0Sstevel@tonic-gate newsize * sizeof (uint_t)) : 419*0Sstevel@tonic-gate (uint_t *)malloc(newsize * sizeof (uint_t)); 420*0Sstevel@tonic-gate if (drvp->busymap == NULL) { 421*0Sstevel@tonic-gate (void) fprintf(stderr, "out of memory in preenlib\n"); 422*0Sstevel@tonic-gate exit(1); 423*0Sstevel@tonic-gate } 424*0Sstevel@tonic-gate (void) memset((char *)&drvp->busymap[drvp->mapsize], 0, 425*0Sstevel@tonic-gate (uint_t)((newsize - drvp->mapsize) * sizeof (uint_t))); 426*0Sstevel@tonic-gate drvp->mapsize = newsize; 427*0Sstevel@tonic-gate } 428*0Sstevel@tonic-gate 429*0Sstevel@tonic-gate for (i = 0; i < newsize; i++) 430*0Sstevel@tonic-gate drvp->busymap[i] |= dev->unitmap[i]; 431*0Sstevel@tonic-gate } 432*0Sstevel@tonic-gate 433*0Sstevel@tonic-gate /* 434*0Sstevel@tonic-gate * make each device in the given `rawdev' un-busy. 435*0Sstevel@tonic-gate * Called from preen_releasedev 436*0Sstevel@tonic-gate */ 437*0Sstevel@tonic-gate static 438*0Sstevel@tonic-gate void 439*0Sstevel@tonic-gate notbusy(struct rawdev *rd) 440*0Sstevel@tonic-gate { 441*0Sstevel@tonic-gate struct onedev *devp; 442*0Sstevel@tonic-gate struct driver *drvp; 443*0Sstevel@tonic-gate register int i; 444*0Sstevel@tonic-gate 445*0Sstevel@tonic-gate for (devp = rd->alldevs; devp; devp = devp->nxtdev) { 446*0Sstevel@tonic-gate drvp = &dlist[devp->drvid]; 447*0Sstevel@tonic-gate for (i = 0; i < devp->mapsize; i++) 448*0Sstevel@tonic-gate drvp->busymap[i] &= ~(devp->unitmap[i]); 449*0Sstevel@tonic-gate } 450*0Sstevel@tonic-gate } 451