Linux kernel 发布 5.0-rc1 版本

Linux kernel 要发布 5.0 了。。

跟原因是 linus 认为 4.21的小版本号太多了。。。

邮件内容如下：

https://lore.kernel.org/lkml/20190107160756.7c502d5a@canb.auug.org.au/T/

From: Linus Torvalds @ --  : UTC (permalink / raw)
  To: Linux List Kernel Mailing

So this was a fairly unusual merge window with the holidays, and as a
result I'm not even going to complain about the pull requests that
ended up coming in late. It all mostly worked out fine, I think. And
lot of people got their pull requests in early, and hopefully had a
calm holiday season. Thanks again to everybody.

The numbering change is not indicative of anything special. If you
want to have an official reason, it's that I ran out of fingers and
toes to count on, so 4.21 became 5.0. There's no nice git object
numerology this time (we're _about_ 6.5M objects in the git repo), and
there isn't any major particular feature that made for the release
numbering either. Of course, depending on your particular interests,
some people might well find a feature _they_ like so much that they
think it can do as a reason for incrementing the major number.

So go wild. Make up your own reason for why it's 5.0.

Because as usual, there's a lot of changes in there. Not because this
merge window was particularly big - but even our smaller merge windows
aren't exactly small. It's a very solid and average merge window with
just under 11k commits (or about .5k if you count merges).

The stats look fairly normal. About % is drivers, % is
architecture updates, % is tooling, and the remaining % is all
over (documentation, networking, filesystems, header file updates,
core kernel code..). Nothing particular stands out, although I do like
seeing how some ancient drivers are getting put out to pasture
(*cought*isdn*cough*).

As usual even the shortlog is much too big to post, so the summary
below is only a list of the pull requests I merged.

Go test. Kick the tires. Be the first kid on your block running a 5.0
pre-release kernel.

              Linus