x86/mm: Add a few comments
authorPeter Zijlstra <peterz@infradead.org>
Thu, 10 Nov 2022 12:33:50 +0000 (13:33 +0100)
committerDave Hansen <dave.hansen@linux.intel.com>
Thu, 15 Dec 2022 18:37:28 +0000 (10:37 -0800)
commit5ceeee7571b7628f439ae0444ec41d132558f47e
tree403d50401a7da9c43bed272fa5a16fa00a3e20ad
parent80d0969aa7832bfeb287cb22563a1ad08fea937d
x86/mm: Add a few comments

It's a shame to hide useful comments in Changelogs, add some to the
code.

Shamelessly stolen from commit:

  c40a56a7818c ("x86/mm/init: Remove freed kernel image areas from alias mapping")

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20221110125544.460677011%40infradead.org
arch/x86/mm/pat/set_memory.c