--- e2fsprogs-1.39/misc/base_device.c
+++ e2fsprogs-1.39/misc/base_device.c
@@ -31,125 +31,170 @@
 #include "fsck.h"
 
 /*
- * Required for the uber-silly devfs /dev/ide/host1/bus2/target3/lun3
- * pathames.
+ * Same version as above but returns the devicenumber of
+ * base device. Saner, no strings to free, works with everything.
  */
-static const char *devfs_hier[] = {
-	"host", "bus", "target", "lun", 0
-};
-
-char *base_device(const char *device)
+dev_t base_devt(const char *device)
 {
-	char *str, *cp;
-	const char **hier, *disk;
-	int len;
-
-	str = malloc(strlen(device)+1);
-	if (!str)
-		return NULL;
-	strcpy(str, device);
-	cp = str;
-
-	/* Skip over /dev/; if it's not present, give up. */
-	if (strncmp(cp, "/dev/", 5) != 0)
-		goto errout;
-	cp += 5;
-
-	/* Skip over /dev/dsk/... */
-	if (strncmp(cp, "dsk/", 4) == 0)
-		cp += 4;
-	
-	/*
-	 * For md devices, we treat them all as if they were all
-	 * on one disk, since we don't know how to parallelize them.
-	 */
-	if (cp[0] == 'm' && cp[1] == 'd') {
-		*(cp+2) = 0;
-		return str;
-	}
+	struct stat statbuf;
+	unsigned int dev_major, dev_minor, disk_minor;
 
-	/* Handle DAC 960 devices */
-	if (strncmp(cp, "rd/", 3) == 0) {
-		cp += 3;
-		if (cp[0] != 'c' || cp[2] != 'd' ||
-		    !isdigit(cp[1]) || !isdigit(cp[3]))
-			goto errout;
-		*(cp+4) = 0;
-		return str;
-	}
+	if (stat(device, &statbuf) < 0) {
+		fprintf(stderr,"error on stat() %s: %s\n", 
+			device, strerror(errno));
+		return 0;
+	}
+
+	if (!S_ISBLK(statbuf.st_mode))
+		return 0;
+
+	dev_major = major(statbuf.st_mode);
+	dev_minor = minor(statbuf.st_mode);
+
+	switch (dev_major) {
+	case 3: /* IDE / ATAPI disks */
+	case 13: /* PC MFM disks */
+	case 14: /* BIOS HD disks */
+	case 21: /* Acorn MFM disks */
+	case 22: /* 2nd IDE / ATAPI controller */
+	case 33: /* 3rd IDE / ATAPI controller */
+	case 34: /* 4th IDE / ATAPI controller */
+	case 56: /* 5th IDE / ATAPI controller */
+	case 57: /* 6th IDE / ATAPI controller */
+	case 88: /* 7th IDE / ATAPI controller */
+	case 89: /* 8th IDE / ATAPI controller */
+	case 90: /* 9th IDE / ATAPI controller */
+	case 91: /* 10th IDE / ATAPI controller */
+	case 36: /* MCA ESDI disks */
+		disk_minor = dev_minor - (dev_minor % 64);
+		break;
+	case 160: /* Carmel 8-port SATA disks, 1st controller */
+	case 161: /* Carmel 8-port SATA disks, 2nd controller */
+		disk_minor = dev_minor - (dev_minor % 32);
+		break;
+	case 8: /* SCSI devices */
+	case 28: /* Atari ASCI disks */
+	case 44: /* FTL disks */
+	case 45: /* Parallel port IDE disks */
+	case 65: /* SCSI devices */
+	case 66: /* SCSI devices */
+	case 67: /* SCSI devices */
+	case 68: /* SCSI devices */
+	case 69: /* SCSI devices */
+	case 70: /* SCSI devices */
+	case 71: /* SCSI devices */
+	case 72: /* Compaq IDA, 1st controller */
+	case 73: /* Compaq IDA, 2nd controller */
+	case 74: /* Compaq IDA, 3rd controller */
+	case 75: /* Compaq IDA, 4th controller */
+	case 76: /* Compaq IDA, 5th controller */
+	case 77: /* Compaq IDA, 6th controller */
+	case 78: /* Compaq IDA, 7th controller */
+	case 79: /* Compaq IDA, 8th controller */
+	case 80: /* I2O disks */
+	case 81: /* I2O disks */
+	case 82: /* I2O disks */
+	case 83: /* I2O disks */
+	case 84: /* I2O disks */
+	case 85: /* I2O disks */
+	case 86: /* I2O disks */
+	case 87: /* I2O disks */
+	case 93: /* NAND FTL disks */
+	case 96: /* Inverse NAND FTL disks */
+	case 98: /* User-mode Virtual disks */
+	case 101: /* AMI RAID controller */
+	case 102: /* Compressed block device */
+	case 104: /* Compaq CCISS, 1st controller */
+	case 105: /* Compaq CCISS, 2nd controller */
+	case 106: /* Compaq CCISS, 3rd controller */
+	case 107: /* Compaq CCISS, 4th controller */
+	case 108: /* Compaq CCISS, 5th controller */
+	case 109: /* Compaq CCISS, 6th controller */
+	case 110: /* Compaq CCISS, 7th controller */
+	case 111: /* Compaq CCISS, 8th controller */
+	case 114: /* ATARAID devices */
+	case 128: /* SCSI disks */
+	case 129: /* SCSI disks */
+	case 130: /* SCSI disks */
+	case 131: /* SCSI disks */
+	case 132: /* SCSI disks */
+	case 133: /* SCSI disks */
+	case 134: /* SCSI disks */
+	case 135: /* SCSI disks */
+	case 153: /* Enhanced Metadisk RAID */
+		disk_minor = dev_minor - (dev_minor % 16);
+		break;
+	case 48: /* Mylex DAC960 RAID, 1st controller */
+	case 49: /* Mylex DAC960 RAID, 2nd controller */
+	case 50: /* Mylex DAC960 RAID, 3rd controller */
+	case 51: /* Mylex DAC960 RAID, 4th controller */
+	case 52: /* Mylex DAC960 RAID, 5th controller */
+	case 53: /* Mylex DAC960 RAID, 6th controller */
+	case 54: /* Mylex DAC960 RAID, 7th controller */
+	case 55: /* Mylex DAC960 RAID, 8th controller */
+	case 112: /* IBM iSeries virtual disks */
+	case 136: /* Mylex DAC960 RAID, 9th controller */
+	case 137: /* Mylex DAC960 RAID, 10th controller */
+	case 138: /* Mylex DAC960 RAID, 11th controller */
+	case 139: /* Mylex DAC960 RAID, 12th controller */
+	case 140: /* Mylex DAC960 RAID, 13th controller */
+	case 141: /* Mylex DAC960 RAID, 14th controller */
+	case 142: /* Mylex DAC960 RAID, 15th controller */
+	case 143: /* Mylex DAC960 RAID, 16th controller */
+	case 180: /* USB Block devices */
+		disk_minor = dev_minor - (dev_minor % 8);
+		break;
+	case 94: /* IBM S/390 DASD */
+		disk_minor = dev_minor - (dev_minor % 4);
+		break;
+	default:
+		disk_minor = dev_minor;
+		break;
 
-	/* Now let's handle /dev/hd* and /dev/sd* devices.... */
-	if ((cp[0] == 'h' || cp[0] == 's') && (cp[1] == 'd')) {
-		cp += 2;
-		/* If there's a single number after /dev/hd, skip it */
-		if (isdigit(*cp))
-			cp++;
-		/* What follows must be an alpha char, or give up */
-		if (!isalpha(*cp))
-			goto errout;
-		*(cp + 1) = 0;
-		return str;
 	}
 
-	/* Now let's handle devfs (ugh) names */
-	len = 0;
-	if (strncmp(cp, "ide/", 4) == 0)
-		len = 4;
-	if (strncmp(cp, "scsi/", 5) == 0)
-		len = 5;
-	if (len) {
-		cp += len;
-		/*
-		 * Now we proceed down the expected devfs hierarchy.
-		 * i.e., .../host1/bus2/target3/lun4/...
-		 * If we don't find the expected token, followed by
-		 * some number of digits at each level, abort.
-		 */
-		for (hier = devfs_hier; *hier; hier++) {
-			len = strlen(*hier);
-			if (strncmp(cp, *hier, len) != 0)
-				goto errout;
-			cp += len;
-			while (*cp != '/' && *cp != 0) {
-				if (!isdigit(*cp))
-					goto errout;
-				cp++;
-			}
-			cp++;
-		}
-		*(cp - 1) = 0;
-		return str;
+	return makedev(dev_major,disk_minor);
+}
+
+/*
+ * Check whether two given devices match.
+ * Rather then check for the device names
+ * (which wouldn't work with udev anyway)
+ * check whether the device numbers are
+ * identical.
+ */
+int match_device(const char *dev1, const char *dev2)
+{
+	struct stat statbuf;
+	dev_t saved_devt;
+	int ret = 0;
+
+	if (stat(dev1, &statbuf) < 0) {
+		return 0;
 	}
 
-	/* Now handle devfs /dev/disc or /dev/disk names */
-	disk = 0;
-	if (strncmp(cp, "discs/", 6) == 0)
-		disk = "disc";
-	else if (strncmp(cp, "disks/", 6) == 0)
-		disk = "disk";
-	if (disk) {
-		cp += 6;
-		if (strncmp(cp, disk, 4) != 0)
-			goto errout;
-		cp += 4;
-		while (*cp != '/' && *cp != 0) {
-			if (!isdigit(*cp))
-				goto errout;
-			cp++;
-		}
-		*cp = 0;
-		return str;
+	if (!S_ISBLK(statbuf.st_mode))
+		return 0;
+
+	saved_devt = statbuf.st_rdev;
+
+	if (stat(dev2, &statbuf) < 0) {
+		return 0;
 	}
 
-errout:
-	free(str);
-	return NULL;
+	if (!S_ISBLK(statbuf.st_mode))
+		return 0;
+
+	if (saved_devt == statbuf.st_rdev)
+		ret = 1;
+	
+	return ret;
 }
 
 #ifdef DEBUG
 int main(int argc, char** argv)
 {
-	const char *base;
+	dev_t base;
 	char  buf[256], *cp;
 
 	while (1) {
@@ -161,8 +206,8 @@
 		cp = strchr(buf, '\t');
 		if (cp)
 			*cp = 0;
-		base = base_device(buf);
-		printf("%s\t%s\n", buf, base ? base : "NONE");
+		base = base_devt(buf);
+		printf("%s\t0x%04x\n", buf, base);
 	}
 	exit(0);
 }
--- e2fsprogs-1.39/misc/fsck.c
+++ e2fsprogs-1.39/misc/fsck.c
@@ -233,8 +233,6 @@
 		free(i->prog);
 	if (i->device)
 		free(i->device);
-	if (i->base_device)
-		free(i->base_device);
 	free(i);
 	return;
 }
@@ -389,7 +387,7 @@
 		return NULL;
 
 	for (fs = filesys_info; fs; fs = fs->next) {
-		if (!strcmp(filesys, fs->device) ||
+		if (match_device(filesys, fs->device) ||
 		    (fs->mountpt && !strcmp(filesys, fs->mountpt)))
 			break;
 	}
@@ -502,7 +500,7 @@
 	inst->prog = string_copy(prog);
 	inst->type = string_copy(type);
 	inst->device = string_copy(device);
-	inst->base_device = base_device(device);
+	inst->base_devt = base_devt(device);
 	inst->start_time = time(0);
 	inst->next = NULL;
 
@@ -905,7 +903,7 @@
 static int device_already_active(char *device)
 {
 	struct fsck_instance *inst;
-	char *base;
+	dev_t disk_devt;
 
 	if (force_all_parallel)
 		return 0;
@@ -918,20 +916,19 @@
 		return 1;
 #endif
 
-	base = base_device(device);
+	disk_devt = base_devt(device);
 	/*
 	 * If we don't know the base device, assume that the device is
 	 * already active if there are any fsck instances running.
 	 */
-	if (!base) 
+	if (!disk_devt)
 		return (instance_list != 0);
+
 	for (inst = instance_list; inst; inst = inst->next) {
-		if (!inst->base_device || !strcmp(base, inst->base_device)) {
-			free(base);
+		if (!inst->base_devt || disk_devt == inst->base_devt) {
 			return 1;
 		}
 	}
-	free(base);
 	return 0;
 }
 
--- e2fsprogs-1.39/misc/fsck.h
+++ e2fsprogs-1.39/misc/fsck.h
@@ -62,9 +62,9 @@
 	char *	prog;
 	char *	type;
 	char *	device;
-	char *	base_device;
+	dev_t	base_devt;
 	struct fsck_instance *next;
 };
 
-extern char *base_device(const char *device);
-extern const char *identify_fs(const char *fs_name, const char *fs_types);
+extern dev_t base_devt(const char *device);
+extern int match_device(const char *dev1, const char *dev2);