Patch "x86/mm: Initialize pmd_idx in page_table_range_init_count()" has been added to the 4.1-stable tree

[<gregkh@linuxfoundation.org>]

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

    x86/mm: Initialize pmd_idx in page_table_range_init_count()

to the 4.1-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-initialize-pmd_idx-in-page_table_range_init_count.patch
and it can be found in the queue-4.1 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 9962eea9e55f797f05f20ba6448929cab2a9f018 Mon Sep 17 00:00:00 2001
From: Minfei Huang <mnfhuang@gmail.com>
Date: Sun, 12 Jul 2015 20:18:42 +0800
Subject: x86/mm: Initialize pmd_idx in page_table_range_init_count()

From: Minfei Huang <mnfhuang@gmail.com>

commit 9962eea9e55f797f05f20ba6448929cab2a9f018 upstream.

The variable pmd_idx is not initialized for the first iteration of the
for loop.

Assign the proper value which indexes the start address.

Fixes: 719272c45b82 'x86, mm: only call early_ioremap_page_table_range_init() once'
Signed-off-by: Minfei Huang <mnfhuang@gmail.com>
Cc: tony.luck@intel.com
Cc: wangnan0@huawei.com
Cc: david.vrabel@citrix.com
Reviewed-by: yinghai@kernel.org
Link: http://lkml.kernel.org/r/1436703522-29552-1-git-send-email-mhuang@redhat.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/x86/mm/init_32.c |    1 +
 1 file changed, 1 insertion(+)

--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -137,6 +137,7 @@ page_table_range_init_count(unsigned lon
 
 	vaddr = start;
 	pgd_idx = pgd_index(vaddr);
+	pmd_idx = pmd_index(vaddr);
 
 	for ( ; (pgd_idx < PTRS_PER_PGD) && (vaddr != end); pgd_idx++) {
 		for (; (pmd_idx < PTRS_PER_PMD) && (vaddr != end);


Patches currently in stable-queue which might be from mnfhuang@gmail.com are

queue-4.1/x86-mm-initialize-pmd_idx-in-page_table_range_init_count.patch