This is a note to let you know that I've just added the patch titled
s390: Add pgste to ptep_modify_prot_start()
to the 3.9-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:
s390-add-pgste-to-ptep_modify_prot_start.patch
and it can be found in the queue-3.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From ben@xxxxxxxxxxxxxxx Mon Jun 10 14:39:38 2013
From: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
Date: Sun, 09 Jun 2013 21:09:24 +0100
Subject: s390: Add pgste to ptep_modify_prot_start()
To: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx, linux-s390@xxxxxxxxxxxxxxx, Debian kernel maintainers <debian-kernel@xxxxxxxxxxxxxxxx>
Message-ID: <1370808564.5614.14.camel@xxxxxxxxxxxxxxxxxxxxxxxxxx>
From: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
Commit 52f36be0f4e2 's390/pgtable: Fix check for pgste/storage key
handling', which was commit b56433cb782d upstream, added a use of
pgste to ptep_modify_prot_start(), but this variable does not exist.
In mainline, pgste was added by commit d3383632d4e8 's390/mm: add pte
invalidation notifier for kvm' and initialised to the return value of
pgste_get_lock(ptep). Initialise it similarly here.
Compile-tested only.
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/s390/include/asm/pgtable.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -1063,11 +1063,12 @@ static inline pte_t ptep_modify_prot_sta
unsigned long address,
pte_t *ptep)
{
+ pgste_t pgste;
pte_t pte;
mm->context.flush_mm = 1;
if (mm_has_pgste(mm))
- pgste_get_lock(ptep);
+ pgste = pgste_get_lock(ptep);
pte = *ptep;
if (!mm_exclusive(mm))
Patches currently in stable-queue which might be from ben@xxxxxxxxxxxxxxx are
queue-3.9/s390-add-pgste-to-ptep_modify_prot_start.patch
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