ACK/APPLIED[B]: [PATCH 0/5][Bionic][SRU Artful] Switch arm64 over to qrwlock

[Seth Forshee]

On Thu, Jan 04, 2018 at 06:48:32PM -0700, dann frazier wrote:
> BugLink: http://bugs.launchpad.net/bugs/1732238
> 
> These patches comprise all clean cherry picks that landed in the 4.15
> merge window. Verified on a ThunderX2-based Sabre board, and regression
> tested on a 128-cpu x86 system using stress-ng and locktorture. (The other
> Ubuntu architectures don't use qrwlocks).

Clean cherry picks. It's a little frightening to be making significant
changes to locking code in an SRU, but this is limited to arm64 and
appears to have been well tested there.

Acked-by: Seth Forshee <seth.forshee at canonical.com>

Applied to bionic/master-next, thanks!