In response to an earlier xfs patch to change how xfs reacts to dax incompatibilities, Dave said: > I suspect we need to be more harsh are rejecting mounts with -o dax > on devices DAX isn't supported on. This mount option is going into > production systems - it's not just for "testing" as the comments all > claim. i Things will break in production systems if DAX isn't > enabled and they are expecting it to be enabled. and I tend to agree, so proposing this change to hard-fail a dax mount if the device doesn't support it, instead of silently disabling the functionality. Proposing for ext2, ext4, and xfs to keep behavior in sync. Thanks, -Eric
