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    Subject[PATCH V2 1/2] mm: Export definition of 'zone_names' array through mmzone.h
    Date
    zone_names[] is used to identify any zone given it's index which
    can be used in many other places. So exporting the definition
    through include/linux/mmzone.h header for it's broader access.

    Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com>
    ---
    Changes in V2:
    - Removed the static and declared in mmzone.h per Andrew

    include/linux/mmzone.h | 1 +
    mm/page_alloc.c | 2 +-
    2 files changed, 2 insertions(+), 1 deletion(-)

    diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
    index 7f2ae99..9943204 100644
    --- a/include/linux/mmzone.h
    +++ b/include/linux/mmzone.h
    @@ -341,6 +341,7 @@ enum zone_type {

    };

    +extern char * const zone_names[];
    #ifndef __GENERATING_BOUNDS_H

    struct zone {
    diff --git a/mm/page_alloc.c b/mm/page_alloc.c
    index a2214c6..cb46bf8 100644
    --- a/mm/page_alloc.c
    +++ b/mm/page_alloc.c
    @@ -207,7 +207,7 @@ int sysctl_lowmem_reserve_ratio[MAX_NR_ZONES-1] = {

    EXPORT_SYMBOL(totalram_pages);

    -static char * const zone_names[MAX_NR_ZONES] = {
    +char * const zone_names[MAX_NR_ZONES] = {
    #ifdef CONFIG_ZONE_DMA
    "DMA",
    #endif
    --
    2.1.0
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