/*
* mdadm - manage Linux "md" devices aka RAID arrays.
*
- * Copyright (C) 2001-2002 Neil Brown <neilb@cse.unsw.edu.au>
+ * Copyright (C) 2001-2006 Neil Brown <neilb@suse.de>
*
*
* This program is free software; you can redistribute it and/or modify
int subdevs = 0, missing_disks = 0;
mddev_dev_t dv;
int bitmap_fd;
-/* unsigned long long size = ~0ULL; / * needed for bitmap only */
+ unsigned long long size = ~0ULL;
+ unsigned long long bitmapsize;
/* scan all devices, make sure they really are block devices */
for (dv = devlist; dv; dv=dv->next) {
}
/* now add the devices */
for ((i=0), (dv = devlist) ; dv ; i++, dv=dv->next) {
+ unsigned long dsize;
+ int fd;
if (strcmp("missing", dv->devname) == 0)
continue;
if (stat(dv->devname, &stb)) {
dv->devname);
goto abort;
}
+ fd = open(dv->devname, O_RDONLY|O_EXCL);
+ if (fd < 0) {
+ fprintf(stderr, Name ": Cannot open %s: %s\n",
+ dv->devname, strerror(errno));
+ goto abort;
+ }
+ if (ioctl(fd, BLKGETSIZE, &dsize) == 0 && dsize > 0) {
+ unsigned long long ldsize = dsize;
+ ldsize <<= 9;
+ if (size== 0 || ldsize < size)
+ size = ldsize;
+ }
+ close(fd);
if (vers>= 9000) {
mdu_disk_info_t disk;
disk.number = i;
if (bitmap_file) {
bitmap_fd = open(bitmap_file, O_RDWR);
if (bitmap_fd < 0) {
+ int major = BITMAP_MAJOR_HI;
+#if 0
if (bitmap_chunk == UnSet) {
fprintf(stderr, Name ": %s cannot be openned.",
bitmap_file);
return 1;
}
+#endif
+ if (vers < 9003) {
+ major = BITMAP_MAJOR_HOSTENDIAN;
+#ifdef __BIG_ENDIAN
+ fprintf(stderr, Name ": Warning - bitmaps created on this kernel are not portable\n"
+ " between different architectures. Consider upgrading the Linux kernel.\n");
+#endif
+ }
+ bitmapsize = size>>9; /* FIXME wrong for RAID10 */
if (CreateBitmap(bitmap_file, 1, NULL, bitmap_chunk,
- delay, write_behind, 0/* FIXME size */)) {
+ delay, write_behind, bitmapsize, major)) {
return 1;
}
bitmap_fd = open(bitmap_file, O_RDWR);