zsmalloc: remove synchronize_rcu from zs_compact()

Do not synchronize rcu in zs_compact(). Neither zsmalloc not zram use rcu. Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Acked-by: Minchan Kim <minchan@kernel.org> Cc: Nitin Gupta <ngupta@vflare.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mariux64 · Apr 15, 2015 · 1ec7cfb · 1ec7cfb
1 parent 8f7d282
commit 1ec7cfb
Showing 1 changed file with 0 additions and 2 deletions.
diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
@@ -1778,8 +1778,6 @@ unsigned long zs_compact(struct zs_pool *pool)
 		nr_migrated += __zs_compact(pool, class);
 	}
 
-	synchronize_rcu();
-
 	return nr_migrated;
 }
 EXPORT_SYMBOL_GPL(zs_compact);