Kernel prepatch 7.3-rc7

The 7.3-rc7 kernel prepatch is out for testing. According to Linus: "As always, I would have preferred to see a smaller rc, but it's not like anything in here looks like a reason to delay the final release. So that's still set for next weekend unless something new comes up." One notable change that slipped into the mainline this week is the deprecation of the ext4 data=journal mode; it will be removed entirely at the beginning of 2028.