Re: [tip: x86/mm] x86/uaccess: Improve performance by aligning writes to 8 bytes in copy_user_generic(), on non-FSRM/ERMS CPUs

[Ingo Molnar]

* tip-bot2 for Herton R. Krzesinski <tip-bot2@xxxxxxxxxxxxx> wrote:

> The following commit has been merged into the x86/mm branch of tip:
> 
> Commit-ID:     411d2763b3ba0e3a99cd27ce813738d530b2320d
> Gitweb:        https://git.kernel.org/tip/411d2763b3ba0e3a99cd27ce813738d530b2320d
> Author:        Herton R. Krzesinski <herton@xxxxxxxxxx>
> AuthorDate:    Thu, 20 Mar 2025 11:22:13 -03:00
> Committer:     Ingo Molnar <mingo@xxxxxxxxxx>
> CommitterDate: Fri, 28 Mar 2025 21:56:49 +01:00
> 
> x86/uaccess: Improve performance by aligning writes to 8 bytes in copy_user_generic(), on non-FSRM/ERMS CPUs
> 
> History of the performance regression:
> ======================================
> 
> Since the a series of user copy updates were merged upstream
        ^^^^^
> ~2 years ago via:

That was my mistake in a last-minute edit to the changelog.
I force-pushed a fix:

  |  Since the following series of user copy updates were merged upstream
  |  ~2 years ago via:

Thanks,

	Ingo