This is a note to let you know that I've just added the patch titled

x86/pti: Document fix wrong index

to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: x86-pti-document-fix-wrong-index.patch and it can be found in the queue-4.9 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 98f0fceec7f84d80bc053e49e596088573086421 Mon Sep 17 00:00:00 2001

From: "zhenwei.pi" zhenwei.pi@youruncloud.com Date: Thu, 18 Jan 2018 09:04:52 +0800 Subject: x86/pti: Document fix wrong index

From: zhenwei.pi zhenwei.pi@youruncloud.com

commit 98f0fceec7f84d80bc053e49e596088573086421 upstream.

In section <2. Runtime Cost>, fix wrong index.

Signed-off-by: zhenwei.pi zhenwei.pi@youruncloud.com Signed-off-by: Thomas Gleixner tglx@linutronix.de Cc: dave.hansen@linux.intel.com Link: https://lkml.kernel.org/r/1516237492-27739-1-git-send-email-zhenwei.pi@youru... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

--- Documentation/x86/pti.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/Documentation/x86/pti.txt +++ b/Documentation/x86/pti.txt @@ -78,7 +78,7 @@ this protection comes at a cost: non-PTI SYSCALL entry code, so requires mapping fewer things into the userspace page tables. The downside is that stacks must be switched at entry time. - d. Global pages are disabled for all kernel structures not + c. Global pages are disabled for all kernel structures not mapped into both kernel and userspace page tables. This feature of the MMU allows different processes to share TLB entries mapping the kernel. Losing the feature means more

Patches currently in stable-queue which might be from zhenwei.pi@youruncloud.com are

queue-4.9/x86-pti-document-fix-wrong-index.patch