On 09.08.2021 04:51, Theodore Ts'o wrote:
It's a new feature which optimizes block allocations for very large file systems. The work being done by ext4lazyinit is to read the block allocation bitmaps so we can cache the buddy bitmaps and how fragmented (or not) various block groups are, which is used to optimize the block allocator.
Thanks for the info. To revert old behavior, the filesystem should be mounted with -o no_prefetch_block_bitmaps
Is it safe to use this option with new optimizations? Should I expect only less optimal filesystem speed and no other issues?
