On Wed, Sep 08, 2021 at 08:08:49PM +0800, Zhang Yi wrote: > Now that we can check out overlapping extents in leaf block and > out-of-order index extents in index block. But the .ee_block in the > first extent of one leaf block should equal to the .ei_block in it's > parent index extent entry. I don't believe this is always guaranteed. The punch hole operation can remove some or part of the first entry in the leaf block, and it won't update the parent index. So it's OK for the first entry of the leaf block to be greater than entry in the parent block. However, if the first entry of the leaf block is less than the entry in the parent block, that's definitely going to be a problem. - Ted
