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Groups > linux.kernel > #1269678
| From | Geert Uytterhoeven <geert@linux-m68k.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 3/4] m68k/mm: sun3 - Add missing initialization of max_pfn and {min,max}_low_pfn |
| Date | 2015-11-15 12:50 +0100 |
| Message-ID | <qv3YK-Sx-3@gated-at.bofh.it> (permalink) |
| References | <qv3YK-Sx-5@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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> --- Compile-tested only. --- arch/m68k/sun3/config.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/m68k/sun3/config.c b/arch/m68k/sun3/config.c index a8b942bf71638c97..2a5f43a68ae3d73d 100644 --- a/arch/m68k/sun3/config.c +++ b/arch/m68k/sun3/config.c @@ -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)); -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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[PATCH 3/4] m68k/mm: sun3 - Add missing initialization of max_pfn and {min,max}_low_pfn Geert Uytterhoeven <geert@linux-m68k.org> - 2015-11-15 12:50 +0100
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