On Tue, Apr 20, 2021 at 02:48:17AM +0000, Vineet Gupta wrote:

quoted

32-bit architectures which expect 8-byte alignment for 8-byte integers
and need 64-bit DMA addresses (arc, arm, mips, ppc) had their struct
page inadvertently expanded in 2019.

FWIW, ARC doesn't require 8 byte alignment for 8 byte integers. This is 
only needed for 8-byte atomics due to the requirements of LLOCKD/SCOND 
instructions.

Ah, like x86?  OK, great, I'll drop your arch from the list of
affected.  Thanks!