[PATCH] mm: nommu: Export symbol max_mapnr

[gchen gchen <xili_gchen_5257@hotmail.com>]

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Several modules may need max_mapnr, so export, the related error with
allmodconfig under c6x:

MODPOST 3327 modules
ERROR: "max_mapnr" [fs/pstore/ramoops.ko] undefined!
ERROR: "max_mapnr" [drivers/media/v4l2-core/videobuf2-dma-contig.ko] undefined!

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
---
mm/nommu.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/mm/nommu.c b/mm/nommu.c
index 3e67e75..3fba2dc 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -62,6 +62,7 @@ void *high_memory;
EXPORT_SYMBOL(high_memory);
struct page *mem_map;
unsigned long max_mapnr;
+EXPORT_SYMBOL(max_mapnr);
unsigned long highest_memmap_pfn;
struct percpu_counter vm_committed_as;
int sysctl_overcommit_memory = OVERCOMMIT_GUESS; /* heuristic overcommit */
--
1.9.3
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