#define START_MD _IO (MD_MAJOR, 2)
#define STOP_MD _IO (MD_MAJOR, 3)
-int Build(char *mddev, int mdfd, int chunk, int level,
+int Build(char *mddev, int mdfd, int chunk, int level, int layout,
int raiddisks,
- mddev_dev_t devlist)
+ mddev_dev_t devlist, int assume_clean,
+ char *bitmap_file, int bitmap_chunk, int write_behind, int delay, int verbose)
{
/* Build a linear or raid0 arrays without superblocks
* We cannot really do any checks, we just do it.
int i;
int vers;
struct stat stb;
- int subdevs = 0;
+ int subdevs = 0, missing_disks = 0;
mddev_dev_t dv;
+ int bitmap_fd;
+ unsigned long long size = ~0ULL;
/* scan all devices, make sure they really are block devices */
for (dv = devlist; dv; dv=dv->next) {
+ subdevs++;
+ if (strcmp("missing", dv->devname) == 0) {
+ missing_disks++;
+ continue;
+ }
if (stat(dv->devname, &stb)) {
fprintf(stderr, Name ": Cannot find %s: %s\n",
dv->devname, strerror(errno));
dv->devname);
return 1;
}
- subdevs++;
}
if (raiddisks != subdevs) {
return 1;
}
+ if (layout == UnSet)
+ switch(level) {
+ default: /* no layout */
+ layout = 0;
+ break;
+ case 10:
+ layout = 0x102; /* near=2, far=1 */
+ if (verbose > 0)
+ fprintf(stderr,
+ Name ": layout defaults to n1\n");
+ break;
+ case 5:
+ case 6:
+ layout = map_name(r5layout, "default");
+ if (verbose > 0)
+ fprintf(stderr,
+ Name ": layout defaults to %s\n", map_num(r5layout, layout));
+ break;
+ case LEVEL_FAULTY:
+ layout = map_name(faultylayout, "default");
+
+ if (verbose > 0)
+ fprintf(stderr,
+ Name ": layout defaults to %s\n", map_num(faultylayout, layout));
+ break;
+ }
+
+
vers = md_get_version(mdfd);
/* looks Ok, go for it */
array.raid_disks = raiddisks;
array.md_minor = 0;
if (fstat(mdfd, &stb)==0)
- array.md_minor = MINOR(stb.st_rdev);
+ array.md_minor = minor(stb.st_rdev);
array.not_persistent = 1;
array.state = 0; /* not clean, but no errors */
- array.active_disks = raiddisks;
- array.working_disks = raiddisks;
+ if (assume_clean)
+ array.state |= 1;
+ array.active_disks = raiddisks - missing_disks;
+ array.working_disks = raiddisks - missing_disks;
array.spare_disks = 0;
- array.failed_disks = 0;
- if (chunk == 0)
+ array.failed_disks = missing_disks;
+ if (chunk == 0 && (level==0 || level==LEVEL_LINEAR))
chunk = 64;
array.chunk_size = chunk*1024;
+ array.layout = layout;
if (ioctl(mdfd, SET_ARRAY_INFO, &array)) {
fprintf(stderr, Name ": SET_ARRAY_INFO failed for %s: %s\n",
mddev, strerror(errno));
return 1;
}
+ } else if (bitmap_file) {
+ fprintf(stderr, Name ": bitmaps not supported with this kernel\n");
+ return 1;
}
/* 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)) {
- fprintf(stderr, Name ": Wierd: %s has disappeared.\n",
+ fprintf(stderr, Name ": Weird: %s has disappeared.\n",
dv->devname);
goto abort;
}
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;
disk.raid_disk = i;
- disk.state = 6;
- disk.major = MAJOR(stb.st_rdev);
- disk.minor = MINOR(stb.st_rdev);
+ disk.state = (1<<MD_DISK_SYNC) | (1<<MD_DISK_ACTIVE);
+ if (dv->writemostly)
+ disk.state |= 1<<MD_DISK_WRITEMOSTLY;
+ disk.major = major(stb.st_rdev);
+ disk.minor = minor(stb.st_rdev);
if (ioctl(mdfd, ADD_NEW_DISK, &disk)) {
fprintf(stderr, Name ": ADD_NEW_DISK failed for %s: %s\n",
dv->devname, strerror(errno));
}
} else {
if (ioctl(mdfd, REGISTER_DEV, &stb.st_rdev)) {
- fprintf(stderr, Name ": REGISTER_DEV failed for %s.\n",
+ fprintf(stderr, Name ": REGISTER_DEV failed for %s: %s.\n",
dv->devname, strerror(errno));
goto abort;
}
/* now to start it */
if (vers >= 9000) {
mdu_param_t param; /* not used by syscall */
+ if (bitmap_file) {
+ bitmap_fd = open(bitmap_file, O_RDWR);
+ if (bitmap_fd < 0) {
+ if (bitmap_chunk == UnSet) {
+ fprintf(stderr, Name ": %s cannot be openned.",
+ bitmap_file);
+ return 1;
+ }
+ if (CreateBitmap(bitmap_file, 1, NULL, bitmap_chunk,
+ delay, write_behind, size>>9)) {
+ return 1;
+ }
+ bitmap_fd = open(bitmap_file, O_RDWR);
+ if (bitmap_fd < 0) {
+ fprintf(stderr, Name ": %s cannot be openned.",
+ bitmap_file);
+ return 1;
+ }
+ }
+ if (bitmap_fd >= 0) {
+ if (ioctl(mdfd, SET_BITMAP_FILE, bitmap_fd) < 0) {
+ fprintf(stderr, Name ": Cannot set bitmap file for %s: %s\n",
+ mddev, strerror(errno));
+ return 1;
+ }
+ }
+ }
if (ioctl(mdfd, RUN_ARRAY, ¶m)) {
fprintf(stderr, Name ": RUN_ARRAY failed: %s\n",
strerror(errno));
goto abort;
}
}
- fprintf(stderr, Name ": array %s built and started.\n",
- mddev);
+ if (verbose >= 0)
+ fprintf(stderr, Name ": array %s built and started.\n",
+ mddev);
return 0;
abort:
return 1;
}
-
projects / thirdparty / mdadm.git / blobdiff