Hmm, I don’t really think this counts as user space. This is a kernel configuration parameter. User facing for sure, so a bit of gray area perhaps.

tl;dr

Maintenance is not free? They still have to test it at the very least.

data=journal is just one mode of journaling. Not the entire feature.

Journaling all of the data is very expensive and slow and no one was using it.

Metadata journaling as always the main feature and is still present.

On our own?

No, the journal is not deprecated. Only data journaling is.

Metadata is still journaled and is what most people have been using all this time.

They are not removing the journal.

The metadata journal is still there. Most people are not journaling their data, it’s too slow.

Madness

We had a similar stupid issue at my last job. Someone made an edict that all Sha-1 and md5 references in the code must be removed for security reasons.

Who was saying it was otherwise? Containers are not virtualization and never have been.