On Wed, Dec 21, 2016 at 12:03:17PM -0500, Jeff Layton wrote: > Only btrfs, ext4, and xfs implement it for data changes. Because of > this, these filesystems must log the inode to disk whenever the > i_version counter changes. That has a non-zero performance impact, > especially on write-heavy workloads, because we end up dirtying the > inode metadata on every write, not just when the times change. [1]
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