mm: remove initialization of static per-cpu variables

This was required by some old, no-longer-used gcc on sparc.

Signed-off-by: Vegard Nossum <vegard.nossum@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

mm/swap.c

@@ -34,9 +34,9 @@
 /* How many pages do we try to swap or page in/out together? */
 int page_cluster;
 
-static DEFINE_PER_CPU(struct pagevec, lru_add_pvecs) = { 0, };
-static DEFINE_PER_CPU(struct pagevec, lru_add_active_pvecs) = { 0, };
-static DEFINE_PER_CPU(struct pagevec, lru_rotate_pvecs) = { 0, };
+static DEFINE_PER_CPU(struct pagevec, lru_add_pvecs);
+static DEFINE_PER_CPU(struct pagevec, lru_add_active_pvecs);
+static DEFINE_PER_CPU(struct pagevec, lru_rotate_pvecs);
 
 /*
  * This path almost never happens for VM activity - pages are normally
@@ -493,7 +493,7 @@ EXPORT_SYMBOL(pagevec_lookup_tag);
  */
 #define ACCT_THRESHOLD	max(16, NR_CPUS * 2)
 
-static DEFINE_PER_CPU(long, committed_space) = 0;
+static DEFINE_PER_CPU(long, committed_space);
 
 void vm_acct_memory(long pages)
 {