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m68k/mm: m54xx - Add missing initialization of max_pfn 

If max_pfn is not initialized, the various /proc/kpage* files are empty,
and selftests/vm/mlock2-tests will fail. max_pfn is also used by the
block layer to calculate DMA masks.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Greg Ungerer <gerg@uclinux.org>
Tested-by: Greg Ungerer <gerg@uclinux.org>
This commit is contained in:
Geert Uytterhoeven 2015-11-15 11:36:29 +01:00
parent 79ae4fa5c0
commit 4722b8feb0
1 changed files with 1 additions and 1 deletions
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2
arch/m68k/coldfire/m54xx.c
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@ -98,7 +98,7 @@ static void __init mcf54xx_bootmem_alloc(void)
memstart = PAGE_ALIGN(_ramstart);
min_low_pfn = PFN_DOWN(_rambase);
start_pfn = PFN_DOWN(memstart);
max_low_pfn = PFN_DOWN(_ramend);
max_pfn = max_low_pfn = PFN_DOWN(_ramend);
high_memory = (void *)_ramend;
m68k_virt_to_node_shift = fls(_ramend - _rambase - 1) - 6;