Commit a8de2193 authored by Minfei Huang's avatar Minfei Huang Committed by Kamal Mostafa

x86/mm: Initialize pmd_idx in page_table_range_init_count()

commit 9962eea9 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: 719272c4 'x86, mm: only call early_ioremap_page_table_range_init() once'
Signed-off-by: default avatarMinfei 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.comSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Signed-off-by: default avatarKamal Mostafa <kamal@canonical.com>
parent c685c204
......@@ -137,6 +137,7 @@ page_table_range_init_count(unsigned long start, unsigned long end)
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);
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment