davidlt/kernel-ark
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

m68k/mm: sun3 - Add missing initialization of max_pfn and {min,max}_low_pfn

Browse Source 
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.

Switch from init_bootmem_node() to init_bootmem(), as there's only one
memory node on Sun-3. This will initialize min_low_pfn and max_low_pfn,
which was also not done before.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Greg Ungerer <gerg@uclinux.org>
This commit is contained in:
Geert Uytterhoeven 2015-11-15 11:41:14 +01:00
parent 4722b8feb0
commit c73ec31933
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
arch/m68k/sun3/config.c
View File

@ -118,13 +118,13 @@ static void __init sun3_bootmem_alloc(unsigned long memory_start,
memory_end = memory_end & PAGE_MASK;
start_page = __pa(memory_start) >> PAGE_SHIFT;
num_pages = __pa(memory_end) >> PAGE_SHIFT;
max_pfn = num_pages = __pa(memory_end) >> PAGE_SHIFT;
high_memory = (void *)memory_end;
availmem = memory_start;
m68k_setup_node(0);
availmem += init_bootmem_node(NODE_DATA(0), start_page, 0, num_pages);
availmem += init_bootmem(start_page, num_pages);
availmem = (availmem + (PAGE_SIZE-1)) & PAGE_MASK;
free_bootmem(__pa(availmem), memory_end - (availmem));