1. 13 10月, 2010 1 次提交
    • Y
      memblock, bootmem: Round pfn properly for memory and reserved regions · c7fc2de0
      Yinghai Lu 提交于
      We need to round memory regions correctly -- specifically, we need to
      round reserved region in the more expansive direction (lower limit
      down, upper limit up) whereas usable memory regions need to be rounded
      in the more restrictive direction (lower limit up, upper limit down).
      
      This introduces two set of inlines:
      
      	memblock_region_memory_base_pfn()
      	memblock_region_memory_end_pfn()
      	memblock_region_reserved_base_pfn()
      	memblock_region_reserved_end_pfn()
      
      Although they are antisymmetric (and therefore are technically
      duplicates) the use of the different inlines explicitly documents the
      programmer's intention.
      
      The lack of proper rounding caused a bug on ARM, which was then found
      to also affect other architectures.
      Reported-by: NRussell King <rmk@arm.linux.org.uk>
      Signed-off-by: NYinghai Lu <yinghai@kernel.org>
      LKML-Reference: <4CB4CDFD.4020105@kernel.org>
      Cc: Jeremy Fitzhardinge <jeremy@goop.org>
      Signed-off-by: NH. Peter Anvin <hpa@linux.intel.com>
      c7fc2de0
  2. 16 9月, 2010 1 次提交
  3. 28 8月, 2010 1 次提交
  4. 05 8月, 2010 19 次提交
  5. 04 8月, 2010 4 次提交
  6. 14 7月, 2010 1 次提交