mips: zero out pg_data_t when it's allocated
Minchan Kim [Tue, 31 Jul 2012 23:46:11 +0000 (16:46 -0700)]
This patch is preparation for the next patch which removes the zeroing of
the pg_data_t in core MM.  All archs except MIPS already do this.

Signed-off-by: Minchan Kim <minchan@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Tejun Heo <tj@kernel.org>

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/mips/sgi-ip27/ip27-memory.c

index b105eca..cd8fcab 100644 (file)
@@ -401,6 +401,7 @@ static void __init node_mem_init(cnodeid_t node)
         * Allocate the node data structures on the node first.
         */
        __node_data[node] = __va(slot_freepfn << PAGE_SHIFT);
+       memset(__node_data[node], 0, PAGE_SIZE);
 
        NODE_DATA(node)->bdata = &bootmem_node_data[node];
        NODE_DATA(node)->node_start_pfn = start_pfn;