void test17(void)
{
int rc;
int fd;
int osts_all;
uint64_t osts_layout;
struct llapi_layout *layout;
char path[PATH_MAX];
snprintf(path, sizeof(path), "%s/%s", lustre_dir, T17FILE);
rc = unlink(path);
ASSERTF(rc == 0 || errno == ENOENT, "errno = %d", errno);
layout = llapi_layout_alloc();
ASSERTF(layout != NULL, "errno = %d", errno);
rc = llapi_layout_stripe_count_set(layout, LLAPI_LAYOUT_WIDE);
ASSERTF(rc == 0, "errno = %d", errno);
fd = llapi_layout_file_create(path, 0, 0640, layout);
ASSERTF(fd >= 0, "errno = %d", errno);
rc = close(fd);
ASSERTF(rc == 0, "errno = %d", errno);
llapi_layout_free(layout);
/* Get number of available OSTs */
fd = open(path, O_RDONLY);
ASSERTF(fd >= 0, "errno = %d", errno);
rc = llapi_lov_get_uuids(fd, NULL, &osts_all);
ASSERTF(rc == 0, "rc = %d, errno = %d", rc, errno);
rc = close(fd);
ASSERTF(rc == 0, "errno = %d", errno);
layout = llapi_layout_get_by_path(path, 0);
ASSERTF(layout != NULL, "errno = %d", errno);
rc = llapi_layout_stripe_count_get(layout, &osts_layout);
ASSERTF(osts_layout == osts_all, "%"PRIu64" != %d", osts_layout,
osts_all);
llapi_layout_free(layout);
}
static int hioi_fs_query_lustre (const char *path, hio_fs_attr_t *fs_attr) {
struct lov_user_md *lum;
struct find_param param;
char mountdir[PATH_MAX];
int rc, fd, obd_count;
rc = llapi_search_mounts (path, 0, mountdir, NULL);
if (0 != rc) {
return hioi_err_errno (-rc);
}
#if !HAVE_LLAPI_GET_OBD_COUNT
fd = open (mountdir, O_RDONLY);
if (-1 == fd) {
return hioi_err_errno (errno);
}
rc = llapi_lov_get_uuids (fd, NULL, &obd_count);
close (fd);
#else
rc = llapi_get_obd_count (mountdir, &obd_count, 0);
#endif
if (0 != rc) {
return hioi_err_errno (errno);
}
fs_attr->fs_flags |= HIO_FS_SUPPORTS_STRIPING | HIO_FS_SUPPORTS_RAID;
fs_attr->fs_type = HIO_FS_TYPE_LUSTRE;
fs_attr->fs_sunit = 64 * 1024;
fs_attr->fs_smax_size = 0x100000000ul;
fs_attr->fs_smax_count = obd_count;
lum = hioi_alloc_lustre_data ();
assert (NULL != lum);
rc = llapi_file_get_stripe (path, lum);
if (0 != rc) {
/* assuming this is a directory try reading the default for the directory. this
* should be updated to check the parent directory if path is a file. */
fd = open (path, O_RDONLY);
if (-1 == fd) {
free (lum);
return hioi_err_errno (errno);
}
rc = ioctl (fd, LL_IOC_LOV_GETSTRIPE, lum);
close (fd);
if (0 > rc) {
free (lum);
return hioi_err_errno (errno);
}
}
fs_attr->fs_scount = lum->lmm_stripe_count ? lum->lmm_stripe_count : 1;
fs_attr->fs_ssize = lum->lmm_stripe_size;
switch (lum->lmm_pattern) {
case LOV_PATTERN_RAID0:
fs_attr->fs_raid_level = 0;
break;
#if defined(LOV_PATTERN_RAID1)
case LOV_PATTERN_RAID1:
fs_attr->fs_raid_level = 1;
break;
#endif
default:
fs_attr->fs_raid_level = -1;
break;
}
free (lum);
return HIO_SUCCESS;
}
