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 <khand...@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