return rc;
}
+/* verify the striping information for directory */
int lod_verify_striping(struct lod_device *d, const struct lu_buf *buf,
- int specific)
+ bool is_from_disk)
{
struct lov_user_md_v1 *lum;
struct lov_user_md_v3 *lum3;
GOTO(out, rc = -EINVAL);
}
- if ((specific && le32_to_cpu(lum->lmm_pattern) != LOV_PATTERN_RAID0) ||
- (!specific && lum->lmm_pattern != 0)) {
+ /* the user uses "0" for default stripe pattern normally. */
+ if (!is_from_disk && lum->lmm_pattern == 0)
+ lum->lmm_pattern = cpu_to_le32(LOV_PATTERN_RAID0);
+
+ if (le32_to_cpu(lum->lmm_pattern) != LOV_PATTERN_RAID0) {
CDEBUG(D_IOCTL, "bad userland stripe pattern: %#x\n",
le32_to_cpu(lum->lmm_pattern));
GOTO(out, rc = -EINVAL);
}
}
- stripe_count = le16_to_cpu(lum->lmm_stripe_count);
if (magic == LOV_USER_MAGIC_V1 || magic == LOV_MAGIC_V1_DEF)
lum_size = offsetof(struct lov_user_md_v1,
- lmm_objects[stripe_count]);
+ lmm_objects[0]);
else if (magic == LOV_USER_MAGIC_V3 || magic == LOV_MAGIC_V3_DEF)
lum_size = offsetof(struct lov_user_md_v3,
- lmm_objects[stripe_count]);
+ lmm_objects[0]);
else
- LBUG();
+ GOTO(out, rc = -EINVAL);
- if (specific && buf->lb_len != lum_size) {
+ stripe_count = le16_to_cpu(lum->lmm_stripe_count);
+ if (buf->lb_len != lum_size) {
CDEBUG(D_IOCTL, "invalid buf len %zd for lov_user_md with "
"magic %#x and stripe_count %u\n",
buf->lb_len, magic, stripe_count);
GOTO(out, rc = -EINVAL);
}
- if (specific && stripe_count > pool_tgt_count(pool)) {
+ if (is_from_disk && stripe_count > pool_tgt_count(pool)) {
CDEBUG(D_IOCTL,
"stripe count %u > # OSTs %u in the pool\n",
stripe_count, pool_tgt_count(pool));