* Patch "x86/mm: Remove in_nmi() warning from vmalloc_fault()" has been added to the 4.18-stable tree
@ 2018-09-17 10:40 gregkh
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From: gregkh @ 2018-09-17 10:40 UTC (permalink / raw)
To: 1532533683-5988-2-git-send-email-joro, David.Laight, aarcange,
acme, alexander.levin, alexander.shishkin, aliguori,
boris.ostrovsky, bp, brgerst, daniel.gruss, dave.hansen,
dhgutteridge, dvlasenk, eduval, gregkh, hpa, hughd, jgross,
jkosina, jolsa
Cc: stable-commits
This is a note to let you know that I've just added the patch titled
x86/mm: Remove in_nmi() warning from vmalloc_fault()
to the 4.18-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
x86-mm-remove-in_nmi-warning-from-vmalloc_fault.patch
and it can be found in the queue-4.18 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.
>From foo@baz Mon Sep 17 12:37:52 CEST 2018
From: Joerg Roedel <jroedel@suse.de>
Date: Wed, 25 Jul 2018 17:48:01 +0200
Subject: x86/mm: Remove in_nmi() warning from vmalloc_fault()
From: Joerg Roedel <jroedel@suse.de>
[ Upstream commit 6863ea0cda8725072522cd78bda332d9a0b73150 ]
It is perfectly okay to take page-faults, especially on the
vmalloc area while executing an NMI handler. Remove the
warning.
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: David H. Gutteridge <dhgutteridge@sympatico.ca>
Cc: "H . Peter Anvin" <hpa@zytor.com>
Cc: linux-mm@kvack.org
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: David Laight <David.Laight@aculab.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Eduardo Valentin <eduval@amazon.com>
Cc: Greg KH <gregkh@linuxfoundation.org>
Cc: Will Deacon <will.deacon@arm.com>
Cc: aliguori@amazon.com
Cc: daniel.gruss@iaik.tugraz.at
Cc: hughd@google.com
Cc: keescook@google.com
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Waiman Long <llong@redhat.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: joro@8bytes.org
Link: https://lkml.kernel.org/r/1532533683-5988-2-git-send-email-joro@8bytes.org
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/x86/mm/fault.c | 2 --
1 file changed, 2 deletions(-)
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -317,8 +317,6 @@ static noinline int vmalloc_fault(unsign
if (!(address >= VMALLOC_START && address < VMALLOC_END))
return -1;
- WARN_ON_ONCE(in_nmi());
-
/*
* Synchronize this task's top level page-table
* with the 'reference' page table.
Patches currently in stable-queue which might be from jroedel@suse.de are
queue-4.18/x86-kexec-allocate-8k-pgds-for-pti.patch
queue-4.18/iommu-ipmmu-vmsa-fix-allocation-in-atomic-context.patch
queue-4.18/x86-mm-remove-in_nmi-warning-from-vmalloc_fault.patch
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2018-09-17 10:40 Patch "x86/mm: Remove in_nmi() warning from vmalloc_fault()" has been added to the 4.18-stable tree gregkh
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