On Thu, Jun 28, 2018 at 04:20:48PM -0600, Andreas Dilger wrote: > That's true for stock ext4, but as I mentioned in my other email, Lustre > will allocate up to the PAGE_SIZE boundary because the RDMA will overwrite > the whole page regardless of where i_size is, which results in blocks > being allocated beyond i_size for PAGE_SIZE > blocksize. But does an RDMA operation actually do a block allocation? Really? And if it is willing to do a block allocation, why is it not willing to bump i_size? - Ted
