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    [PATCH] numa node ids are int, page_to_nid and zone_to_nid should return int · 25ba77c1
    Andy Whitcroft 提交于
    NUMA node ids are passed as either int or unsigned int almost exclusivly
    page_to_nid and zone_to_nid both return unsigned long.  This is a throw
    back to when page_to_nid was a #define and was thus exposing the real type
    of the page flags field.
    
    In addition to fixing up the definitions of page_to_nid and zone_to_nid I
    audited the users of these functions identifying the following incorrect
    uses:
    
    1) mm/page_alloc.c show_node() -- printk dumping the node id,
    2) include/asm-ia64/pgalloc.h pgtable_quicklist_free() -- comparison
       against numa_node_id() which returns an int from cpu_to_node(), and
    3) mm/mpolicy.c check_pte_range -- used as an index in node_isset which
       uses bit_set which in generic code takes an int.
    Signed-off-by: NAndy Whitcroft <apw@shadowen.org>
    Cc: Christoph Lameter <clameter@engr.sgi.com>
    Cc: "Luck, Tony" <tony.luck@intel.com>
    Signed-off-by: NAndrew Morton <akpm@osdl.org>
    Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
    25ba77c1
mempolicy.c 47.0 KB