x86/mm: Fix {pmd,pud}_{set,clear}_flags()
authorJan Beulich <JBeulich@suse.com>
Mon, 19 Feb 2018 14:48:11 +0000 (07:48 -0700)
committerIngo Molnar <mingo@kernel.org>
Tue, 20 Feb 2018 08:33:39 +0000 (09:33 +0100)
commit842cef9113c2120f74f645111ded1e020193d84c
tree0a0f84ab1e1905f9b3e7149fb5f19c3ff3c28ede
parentced5d0bf603fa0baee8ea889e1d70971fd210894
x86/mm: Fix {pmd,pud}_{set,clear}_flags()

Just like pte_{set,clear}_flags() their PMD and PUD counterparts should
not do any address translation. This was outright wrong under Xen
(causing a dead boot with no useful output on "suitable" systems), and
produced needlessly more complicated code (even if just slightly) when
paravirt was enabled.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/5A8AF1BB02000078001A91C3@prv-mh.provo.novell.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
arch/x86/include/asm/pgtable.h
arch/x86/include/asm/pgtable_types.h