return;
}
-/*================ utility functions =====================*/
-
-char *strscat(char *dst, char *src, int buflen) {
- dst[buflen - 1] = 0;
- if (strlen(dst) + strlen(src) >= buflen) {
- fprintf(stderr, "string buffer overflow (max %d): '%s' + '%s'"
- "\n", buflen, dst, src);
- exit(EOVERFLOW);
- }
- return strcat(dst, src);
-
-}
-
-char *strscpy(char *dst, char *src, int buflen) {
- dst[0] = 0;
- return strscat(dst, src, buflen);
-}
-
-inline unsigned int
-dev_major (unsigned long long int __dev)
-{
- return ((__dev >> 8) & 0xfff) | ((unsigned int) (__dev >> 32) & ~0xfff);
-}
-
-inline unsigned int
-dev_minor (unsigned long long int __dev)
-{
- return (__dev & 0xff) | ((unsigned int) (__dev >> 12) & ~0xff);
-}
-
-int get_os_version()
-{
- static int version = 0;
-
- if (!version) {
- int fd;
- char release[4] = "";
-
- fd = open("/proc/sys/kernel/osrelease", O_RDONLY);
- if (fd < 0) {
- fprintf(stderr, "%s: Warning: Can't resolve kernel "
- "version, assuming 2.6\n", progname);
- } else {
- if (read(fd, release, 4) < 0) {
- fprintf(stderr, "reading from /proc/sys/kernel"
- "/osrelease: %s\n", strerror(errno));
- close(fd);
- exit(-1);
- }
- close(fd);
- }
- if (strncmp(release, "2.4.", 4) == 0)
- version = 24;
- else
- version = 26;
- }
- return version;
-}
-
-static int check_mtab_entry(char *spec)
-{
- FILE *fp;
- struct mntent *mnt;
-
- fp = setmntent(MOUNTED, "r");
- if (fp == NULL)
- return(0);
-
- while ((mnt = getmntent(fp)) != NULL) {
- if (strcmp(mnt->mnt_fsname, spec) == 0) {
- endmntent(fp);
- fprintf(stderr, "%s: according to %s %s is "
- "already mounted on %s\n",
- progname, MOUNTED, spec, mnt->mnt_dir);
- return(EEXIST);
- }
- }
- endmntent(fp);
-
- return(0);
-}
-
-/*============ disk dev functions ===================*/
-
-/* Setup a file in the first unused loop_device */
-int loop_setup(struct mkfs_opts *mop)
-{
- char loop_base[20];
- char l_device[64];
- int i, ret = 0;
-
- /* Figure out the loop device names */
- if (!access("/dev/loop0", F_OK | R_OK)) {
- strcpy(loop_base, "/dev/loop\0");
- } else if (!access("/dev/loop/0", F_OK | R_OK)) {
- strcpy(loop_base, "/dev/loop/\0");
- } else {
- fprintf(stderr, "%s: can't access loop devices\n", progname);
- return EACCES;
- }
-
- /* Find unused loop device */
- for (i = 0; i < MAX_LOOP_DEVICES; i++) {
- char cmd[PATH_MAX];
- int cmdsz = sizeof(cmd);
-
- sprintf(l_device, "%s%d", loop_base, i);
- if (access(l_device, F_OK | R_OK))
- break;
- snprintf(cmd, cmdsz, "losetup %s > /dev/null 2>&1", l_device);
- ret = system(cmd);
-
- /* losetup gets 1 (ret=256) for non-set-up device */
- if (ret) {
- /* Set up a loopback device to our file */
- snprintf(cmd, cmdsz, "losetup %s %s", l_device,
- mop->mo_device);
- ret = run_command(cmd, cmdsz);
- if (ret == 256)
- /* someone else picked up this loop device
- * behind our back */
- continue;
- if (ret) {
- fprintf(stderr, "%s: error %d on losetup: %s\n",
- progname, ret, strerror(ret));
- return ret;
- }
- strscpy(mop->mo_loopdev, l_device,
- sizeof(mop->mo_loopdev));
- return ret;
- }
- }
-
- fprintf(stderr, "%s: out of loop devices!\n", progname);
- return EMFILE;
-}
-
-int loop_cleanup(struct mkfs_opts *mop)
-{
- char cmd[150];
- int ret = 1;
- if ((mop->mo_flags & MO_IS_LOOP) && *mop->mo_loopdev) {
- sprintf(cmd, "losetup -d %s", mop->mo_loopdev);
- ret = run_command(cmd, sizeof(cmd));
- }
- return ret;
-}
-
-__u64 get_device_size(char* device)
-{
- int ret, fd;
- __u64 size = 0;
-
- fd = open(device, O_RDONLY);
- if (fd < 0) {
- fprintf(stderr, "%s: cannot open %s: %s\n",
- progname, device, strerror(errno));
- return 0;
- }
-
-#ifdef BLKGETSIZE64
- /* size in bytes. bz5831 */
- ret = ioctl(fd, BLKGETSIZE64, (void*)&size);
-#else
- {
- __u32 lsize = 0;
- /* size in blocks */
- ret = ioctl(fd, BLKGETSIZE, (void*)&lsize);
- size = (__u64)lsize * 512;
- }
-#endif
- close(fd);
- if (ret < 0) {
- fprintf(stderr, "%s: size ioctl failed: %s\n",
- progname, strerror(errno));
- return 0;
- }
-
- vprint("device size = "LPU64"MB\n", size >> 20);
- /* return value in KB */
- return size >> 10;
-}
-
-int loop_format(struct mkfs_opts *mop)
-{
- int fd;
-
- if (mop->mo_device_sz == 0) {
- fatal();
- fprintf(stderr, "loop device requires a --device-size= "
- "param\n");
- return EINVAL;
- }
-
- fd = creat(mop->mo_device, S_IRUSR|S_IWUSR);
- if (fd < 0) {
- fatal();
- fprintf(stderr, "%s: Unable to create backing store: %s\n",
- progname, strerror(errno));
- return errno;
- }
-
- if (ftruncate(fd, mop->mo_device_sz * 1024) != 0) {
- close(fd);
- fatal();
- fprintf(stderr, "%s: Unable to truncate backing store: %s\n",
- progname, strerror(errno));
- return errno;
- }
-
- close(fd);
- return 0;
-}
-
/* ==================== Lustre config functions =============*/
void print_ldd(char *str, struct lustre_disk_data *ldd)
usage(stderr);
}
-int add_param(char *buf, char *key, char *val)
-{
- int end = sizeof(((struct lustre_disk_data *)0)->ldd_params);
- int start = strlen(buf);
- int keylen = 0;
-
- if (key)
- keylen = strlen(key);
- if (start + 1 + keylen + strlen(val) >= end) {
- fprintf(stderr, "%s: params are too long-\n%s %s%s\n",
- progname, buf, key ? key : "", val);
- return 1;
- }
-
- sprintf(buf + start, " %s%s", key ? key : "", val);
- return 0;
-}
-
/* from mount_lustre */
/* Get rid of symbolic hostnames for tcp, since kernel can't do lookups */
#define MAXNIDSTR 1024
return 0;
}
-/* Search for opt in mntlist, returning true if found.
- */
-static int in_mntlist(char *opt, char *mntlist)
-{
- char *ml, *mlp, *item, *ctx = NULL;
-
- if (!(ml = strdup(mntlist))) {
- fprintf(stderr, "%s: out of memory\n", progname);
- exit(1);
- }
- mlp = ml;
- while ((item = strtok_r(mlp, ",", &ctx))) {
- if (!strcmp(opt, item))
- break;
- mlp = NULL;
- }
- free(ml);
- return (item != NULL);
-}
-
-/* Issue a message on stderr for every item in wanted_mountopts that is not
- * present in mountopts. The justwarn boolean toggles between error and
- * warning message. Return an error count.
- */
-static int check_mountfsoptions(char *mountopts, char *wanted_mountopts,
- int justwarn)
-{
- char *ml, *mlp, *item, *ctx = NULL;
- int errors = 0;
-
- if (!(ml = strdup(wanted_mountopts))) {
- fprintf(stderr, "%s: out of memory\n", progname);
- exit(1);
- }
- mlp = ml;
- while ((item = strtok_r(mlp, ",", &ctx))) {
- if (!in_mntlist(item, mountopts)) {
- fprintf(stderr, "%s: %s mount option `%s' is missing\n",
- progname, justwarn ? "Warning: default"
- : "Error: mandatory", item);
- errors++;
- }
- mlp = NULL;
- }
- free(ml);
- return errors;
-}
-
-/* Trim embedded white space, leading and trailing commas from string s.
- */
-static void trim_mountfsoptions(char *s)
-{
- char *p;
-
- for (p = s; *p; ) {
- if (isspace(*p)) {
- memmove(p, p + 1, strlen(p + 1) + 1);
- continue;
- }
- p++;
- }
-
- while (s[0] == ',')
- memmove(&s[0], &s[1], strlen(&s[1]) + 1);
-
- p = s + strlen(s) - 1;
- while (p >= s && *p == ',')
- *p-- = '\0';
-}
-
int main(int argc, char *const argv[])
{
struct mkfs_opts mop;
char *mountopts = NULL;
char always_mountopts[512] = "";
char default_mountopts[512] = "";
+ unsigned mount_type;
int ret = 0;
if ((progname = strrchr(argv[0], '/')) != NULL)
/* device is last arg */
strscpy(mop.mo_device, argv[argc - 1], sizeof(mop.mo_device));
- /* Are we using a loop device? */
- ret = is_block(mop.mo_device);
- if (ret < 0) {
- ret = errno;
- goto out;
- }
- if (ret == 0)
- mop.mo_flags |= MO_IS_LOOP;
-
#ifdef TUNEFS
/* For tunefs, we must read in the old values before parsing any
new ones. */
/* Check whether the disk has already been formatted by mkfs.lustre */
- ret = is_lustre_target(&mop);
+ ret = osd_is_lustre(mop.mo_device, &mount_type);
if (ret == 0) {
fatal();
fprintf(stderr, "Device %s has not been formatted with "
goto out;
}
- ret = read_local_files(&mop);
+ ret = osd_read_ldd(mop.mo_device, &mop.mo_ldd);
if (ret) {
fatal();
fprintf(stderr, "Failed to read previous Lustre data from %s "
#endif
/* These are the permanent mount options (always included) */
- switch (ldd->ldd_mount_type) {
- case LDD_MT_EXT3:
- case LDD_MT_LDISKFS:
- case LDD_MT_LDISKFS2:
- strscat(default_mountopts, ",errors=remount-ro",
- sizeof(default_mountopts));
- if (IS_MDT(ldd) || IS_MGS(ldd))
- strscat(always_mountopts, ",user_xattr",
- sizeof(always_mountopts));
- /* NB: Files created while extents are enabled can only be read
- * if mounted using the ext4 or ldiskfs filesystem type. */
- if (IS_OST(ldd) &&
- (ldd->ldd_mount_type == LDD_MT_LDISKFS ||
- ldd->ldd_mount_type == LDD_MT_LDISKFS2)) {
- strscat(default_mountopts, ",extents,mballoc",
- sizeof(default_mountopts));
- }
- break;
- default:
- fatal();
- fprintf(stderr, "unknown fs type %d '%s'\n",
- ldd->ldd_mount_type,
- MT_STR(ldd));
- ret = EINVAL;
- goto out;
- }
+ ret = osd_prepare_lustre(&mop,
+ default_mountopts, sizeof(default_mountopts),
+ always_mountopts, sizeof(always_mountopts));
+ if (ret) {
+ fatal();
+ fprintf(stderr, "unable to prepare backend (%d)\n", ret);
+ goto out;
+ }
if (mountopts) {
trim_mountfsoptions(mountopts);
goto out;
}
- if (check_mtab_entry(mop.mo_device))
- return(EEXIST);
+ if (check_mtab_entry(mop.mo_device, mop.mo_device, NULL, NULL))
+ return(EEXIST);
/* Create the loopback file */
if (mop.mo_flags & MO_IS_LOOP) {
#ifndef TUNEFS /* mkfs.lustre */
/* Check whether the disk has already been formatted by mkfs.lustre */
if (!(mop.mo_flags & MO_FORCEFORMAT)) {
- ret = is_lustre_target(&mop);
+ ret = osd_is_lustre(mop.mo_device, &mount_type);
if (ret) {
fatal();
fprintf(stderr, "Device %s was previously formatted "
}
/* Format the backing filesystem */
- ret = make_lustre_backfs(&mop);
+ ret = osd_make_lustre(&mop);
if (ret != 0) {
fatal();
fprintf(stderr, "mkfs failed %d\n", ret);
#endif
/* Write our config files */
- ret = write_local_files(&mop);
+ ret = osd_write_ldd(&mop);
if (ret != 0) {
fatal();
fprintf(stderr, "failed to write local files\n");
git://git.whamcloud.com / fs / lustre-release.git / blobdiff