xtensa: don't make bootmem bitmap larger than required
If min_low_pfn is non-zero, the bitmap reserved for bootmem is bigger than needed. The number of pages bootmem has to maintain is the range from min_low_pfn to max_low_pfn. For now it has only been a theoretical mistake, min_low_pfn was always zero. Signed-off-by: Johannes Weiner <jw@emlix.com> Signed-off-by: Chris Zankel <chris@zankel.net>
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@ -130,7 +130,8 @@ void __init bootmem_init(void)
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/* Find an area to use for the bootmem bitmap. */
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bootmap_size = bootmem_bootmap_pages(max_low_pfn) << PAGE_SHIFT;
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bootmap_size = bootmem_bootmap_pages(max_low_pfn - min_low_pfn);
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bootmap_size <<= PAGE_SHIFT;
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bootmap_start = ~0;
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for (i=0; i<sysmem.nr_banks; i++)
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