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@xxxxxxxxxxxxxxx> know about it.
>From 9962eea9e55f797f05f20ba6448929cab2a9f018 Mon Sep 17 00:00:00 2001
From: Minfei Huang <mnfhuang@xxxxxxxxx>
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@xxxxxxxxx>
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@xxxxxxxxx>
Cc: tony.luck@xxxxxxxxx
Cc: wangnan0@xxxxxxxxxx
Cc: david.vrabel@xxxxxxxxxx
Reviewed-by: yinghai@xxxxxxxxxx
Link: http://lkml.kernel.org/r/1436703522-29552-1-git-send-email-mhuang@xxxxxxxxxx
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
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@xxxxxxxxx are
queue-4.1/x86-mm-initialize-pmd_idx-in-page_table_range_init_count.patch
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