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x86/mm: Initialize pmd_idx in page_table_range_init_count() 

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: 719272c45b '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>
This commit is contained in:
Minfei Huang 2015-07-12 20:18:42 +08:00 committed by Thomas Gleixner
parent 7ea402d01c
commit 9962eea9e5
1 changed files with 1 additions and 0 deletions
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1
arch/x86/mm/init_32.c
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@ -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);