x86/mm: Cleanup pgprot_4k_2_large() and pgprot_large_2_4k()

Browse source

Make use of lower level helpers that operate on the raw protection
values to make the code a little easier to understand, and to also
avoid extra conversions in a few callers.

[ Qian: Fix a wrongly placed bracket in the original submission.
  Reported and fixed by Qian Cai <cai@lca.pw>. Details in second
  Link: below. ]

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20200408152745.1565832-4-hch@lst.de
Link: https://lkml.kernel.org/r/1ED37D02-125F-4919-861A-371981581D9E@lca.pw

...

This commit is contained in:

Christoph Hellwig 2020-04-08 17:27:44 +02:00 • committed by Borislav Petkov

parent 7fa3e10f0f

commit d073569363

3 changed files with 16 additions and 20 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

26

arch/x86/include/asm/pgtable_types.h

View file

2

arch/x86/mm/init_64.c

View file

8

arch/x86/mm/pgtable.c

View file