memcg: remove redundant parentheses

Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 5b00e32f10b8c1c1db57994665179fe3ac3af717..4b85a651c4fa27094433e77a4bf52e8d07ef3cb0 100644 (file)
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -83,7 +83,7 @@ static int really_do_swap_account __initdata = 0;
 #endif
 
 #else
-#define do_swap_account                (0)
+#define do_swap_account                0
 #endif
 
 
@@ -122,9 +122,9 @@ enum mem_cgroup_events_target {
        MEM_CGROUP_TARGET_NUMAINFO,
        MEM_CGROUP_NTARGETS,
 };
-#define THRESHOLDS_EVENTS_TARGET (128)
-#define SOFTLIMIT_EVENTS_TARGET (1024)
-#define NUMAINFO_EVENTS_TARGET (1024)
+#define THRESHOLDS_EVENTS_TARGET 128
+#define SOFTLIMIT_EVENTS_TARGET 1024
+#define NUMAINFO_EVENTS_TARGET 1024
 
 struct mem_cgroup_stat_cpu {
        long count[MEM_CGROUP_STAT_NSTATS];
@@ -373,8 +373,8 @@ static bool move_file(void)
  * Maximum loops in mem_cgroup_hierarchical_reclaim(), used for soft
  * limit reclaim to prevent infinite loops, if they ever occur.
  */
-#define        MEM_CGROUP_MAX_RECLAIM_LOOPS            (100)
-#define        MEM_CGROUP_MAX_SOFT_LIMIT_RECLAIM_LOOPS (2)
+#define        MEM_CGROUP_MAX_RECLAIM_LOOPS            100
+#define        MEM_CGROUP_MAX_SOFT_LIMIT_RECLAIM_LOOPS 2
 
 enum charge_type {
        MEM_CGROUP_CHARGE_TYPE_CACHE = 0,
@@ -395,8 +395,8 @@ enum charge_type {
 /*  0 ... val ...16.... x...24...idx...32*/
 #define __MEMFILE_PRIVATE(idx, x, val) (((idx) << 24) | ((x) << 16) | (val))
 #define MEMFILE_PRIVATE(x, val)                __MEMFILE_PRIVATE(0, x, val)
-#define MEMFILE_TYPE(val)              (((val) >> 16) & 0xff)
-#define MEMFILE_IDX(val)               (((val) >> 24) & 0xff)
+#define MEMFILE_TYPE(val)              ((val) >> 16 & 0xff)
+#define MEMFILE_IDX(val)               ((val) >> 24 & 0xff)
 #define MEMFILE_ATTR(val)              ((val) & 0xffff)
 /* Used for OOM nofiier */
 #define OOM_CONTROL            (0)
@@ -2006,7 +2006,7 @@ struct memcg_stock_pcp {
        unsigned int nr_pages;
        struct work_struct work;
        unsigned long flags;
-#define FLUSHING_CACHED_CHARGE (0)
+#define FLUSHING_CACHED_CHARGE 0
 };
 static DEFINE_PER_CPU(struct memcg_stock_pcp, memcg_stock);
 static DEFINE_MUTEX(percpu_charge_mutex);
@@ -2561,7 +2561,7 @@ static void __mem_cgroup_commit_charge(struct mem_cgroup *memcg,
 
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
 
-#define PCGF_NOCOPY_AT_SPLIT ((1 << PCG_LOCK) | (1 << PCG_MIGRATION))
+#define PCGF_NOCOPY_AT_SPLIT (1 << PCG_LOCK | 1 << PCG_MIGRATION)
 /*
  * Because tail pages are not marked as "used", set it. We're under
  * zone->lru_lock, 'splitting on pmd' and compound_lock.