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ARM: fix alignment of keystone page table fixup 

If init_mm.brk is not section aligned, the LPAE fixup code will miss
updating the final PMD.  Fix this by aligning map_end.

Fixes: a77e0c7b27 ("ARM: mm: Recreate kernel mappings in early_paging_init()")
Cc: <stable@vger.kernel.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2014-07-29 09:24:47 +01:00
parent 91942d1766
commit 823a19cd3b
1 changed files with 3 additions and 3 deletions
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6
arch/arm/mm/mmu.c
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@ -1406,8 +1406,8 @@ void __init early_paging_init(const struct machine_desc *mdesc,
return;
/* remap kernel code and data */
map_start = init_mm.start_code;
map_end = init_mm.brk;
map_start = init_mm.start_code & PMD_MASK;
map_end = ALIGN(init_mm.brk, PMD_SIZE);
/* get a handle on things... */
pgd0 = pgd_offset_k(0);
@ -1442,7 +1442,7 @@ void __init early_paging_init(const struct machine_desc *mdesc,
}
/* remap pmds for kernel mapping */
phys = __pa(map_start) & PMD_MASK;
phys = __pa(map_start);
do {
*pmdk++ = __pmd(phys | pmdprot);
phys += PMD_SIZE;