On Thu, Nov 30, 2023 at 02:04:09AM -0700, Yangtao Li wrote: > NFSv4 mandates a change attribute to avoid problems with timestamp > granularity, which Linux implements using the i_version counter. This is > particularly important when the underlying filesystem is fast. > > BTW introduce a new mount option to enable the iversion functionality, > and disabling it by default. Why do you want to replicate the mistake made in ext4 and undone by commit 1ff20307393e ?