rcu: Fix whitespace inconsistencies
Paul E. McKenney [Fri, 18 Sep 2009 17:28:19 +0000 (10:28 -0700)]
Fix a number of whitespace ^Ierrors in the include/linux/rcu*
and the kernel/rcu* files.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: laijs@cn.fujitsu.com
Cc: dipankar@in.ibm.com
Cc: akpm@linux-foundation.org
Cc: mathieu.desnoyers@polymtl.ca
Cc: josh@joshtriplett.org
Cc: dvhltc@us.ibm.com
Cc: niv@us.ibm.com
Cc: peterz@infradead.org
Cc: rostedt@goodmis.org
Cc: Valdis.Kletnieks@vt.edu
LKML-Reference: <20090918172819.GA24405@linux.vnet.ibm.com>
[ did more checkpatch fixlets ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>

include/linux/rculist_nulls.h
include/linux/rcupdate.h
include/linux/rcutree.h
kernel/rcupdate.c
kernel/rcutorture.c
kernel/rcutree.c
kernel/rcutree.h
kernel/rcutree_plugin.h
kernel/rcutree_trace.c

index f9ddd03..589a409 100644 (file)
@@ -102,7 +102,7 @@ static inline void hlist_nulls_add_head_rcu(struct hlist_nulls_node *n,
  */
 #define hlist_nulls_for_each_entry_rcu(tpos, pos, head, member) \
        for (pos = rcu_dereference((head)->first);                       \
-               (!is_a_nulls(pos)) &&                   \
+               (!is_a_nulls(pos)) &&                   \
                ({ tpos = hlist_nulls_entry(pos, typeof(*tpos), member); 1; }); \
                pos = rcu_dereference(pos->next))
 
index 39dce83..6fe0363 100644 (file)
@@ -1,5 +1,5 @@
 /*
- * Read-Copy Update mechanism for mutual exclusion 
+ * Read-Copy Update mechanism for mutual exclusion
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -18,7 +18,7 @@
  * Copyright IBM Corporation, 2001
  *
  * Author: Dipankar Sarma <dipankar@in.ibm.com>
- * 
+ *
  * Based on the original work by Paul McKenney <paulmck@us.ibm.com>
  * and inputs from Rusty Russell, Andrea Arcangeli and Andi Kleen.
  * Papers:
@@ -26,7 +26,7 @@
  * http://lse.sourceforge.net/locking/rclock_OLS.2001.05.01c.sc.pdf (OLS2001)
  *
  * For detailed explanation of Read-Copy Update mechanism see -
- *             http://lse.sourceforge.net/locking/rcupdate.html
+ *             http://lse.sourceforge.net/locking/rcupdate.html
  *
  */
 
index 00d08c0..3768277 100644 (file)
@@ -24,7 +24,7 @@
  * and inputs from Rusty Russell, Andrea Arcangeli and Andi Kleen.
  *
  * For detailed explanation of Read-Copy Update mechanism see -
- *     Documentation/RCU
+ *     Documentation/RCU
  */
 
 #ifndef __LINUX_RCUTREE_H
index 28d2f24..37ac454 100644 (file)
@@ -19,7 +19,7 @@
  *
  * Authors: Dipankar Sarma <dipankar@in.ibm.com>
  *         Manfred Spraul <manfred@colorfullife.com>
- * 
+ *
  * Based on the original work by Paul McKenney <paulmck@us.ibm.com>
  * and inputs from Rusty Russell, Andrea Arcangeli and Andi Kleen.
  * Papers:
@@ -27,7 +27,7 @@
  * http://lse.sourceforge.net/locking/rclock_OLS.2001.05.01c.sc.pdf (OLS2001)
  *
  * For detailed explanation of Read-Copy Update mechanism see -
- *             http://lse.sourceforge.net/locking/rcupdate.html
+ *             http://lse.sourceforge.net/locking/rcupdate.html
  *
  */
 #include <linux/types.h>
index 328a825..233768f 100644 (file)
@@ -18,7 +18,7 @@
  * Copyright (C) IBM Corporation, 2005, 2006
  *
  * Authors: Paul E. McKenney <paulmck@us.ibm.com>
- *          Josh Triplett <josh@freedesktop.org>
+ *       Josh Triplett <josh@freedesktop.org>
  *
  * See also:  Documentation/RCU/torture.txt
  */
@@ -50,7 +50,7 @@
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Paul E. McKenney <paulmck@us.ibm.com> and "
-              "Josh Triplett <josh@freedesktop.org>");
+             "Josh Triplett <josh@freedesktop.org>");
 
 static int nreaders = -1;      /* # reader threads, defaults to 2*ncpus */
 static int nfakewriters = 4;   /* # fake writer threads */
@@ -110,8 +110,8 @@ struct rcu_torture {
 };
 
 static LIST_HEAD(rcu_torture_freelist);
-static struct rcu_torture *rcu_torture_current = NULL;
-static long rcu_torture_current_version = 0;
+static struct rcu_torture *rcu_torture_current;
+static long rcu_torture_current_version;
 static struct rcu_torture rcu_tortures[10 * RCU_TORTURE_PIPE_LEN];
 static DEFINE_SPINLOCK(rcu_torture_lock);
 static DEFINE_PER_CPU(long [RCU_TORTURE_PIPE_LEN + 1], rcu_torture_count) =
@@ -124,11 +124,11 @@ static atomic_t n_rcu_torture_alloc_fail;
 static atomic_t n_rcu_torture_free;
 static atomic_t n_rcu_torture_mberror;
 static atomic_t n_rcu_torture_error;
-static long n_rcu_torture_timers = 0;
+static long n_rcu_torture_timers;
 static struct list_head rcu_torture_removed;
 static cpumask_var_t shuffle_tmp_mask;
 
-static int stutter_pause_test = 0;
+static int stutter_pause_test;
 
 #if defined(MODULE) || defined(CONFIG_RCU_TORTURE_TEST_RUNNABLE)
 #define RCUTORTURE_RUNNABLE_INIT 1
@@ -267,7 +267,8 @@ struct rcu_torture_ops {
        int irq_capable;
        char *name;
 };
-static struct rcu_torture_ops *cur_ops = NULL;
+
+static struct rcu_torture_ops *cur_ops;
 
 /*
  * Definitions for rcu torture testing.
@@ -342,8 +343,8 @@ static struct rcu_torture_ops rcu_ops = {
        .sync           = synchronize_rcu,
        .cb_barrier     = rcu_barrier,
        .stats          = NULL,
-       .irq_capable    = 1,
-       .name           = "rcu"
+       .irq_capable    = 1,
+       .name           = "rcu"
 };
 
 static void rcu_sync_torture_deferred_free(struct rcu_torture *p)
@@ -641,7 +642,8 @@ rcu_torture_writer(void *arg)
 
        do {
                schedule_timeout_uninterruptible(1);
-               if ((rp = rcu_torture_alloc()) == NULL)
+               rp = rcu_torture_alloc();
+               if (rp == NULL)
                        continue;
                rp->rtort_pipe_count = 0;
                udelay(rcu_random(&rand) & 0x3ff);
@@ -1113,7 +1115,7 @@ rcu_torture_init(void)
                printk(KERN_ALERT "rcutorture: invalid torture type: \"%s\"\n",
                       torture_type);
                mutex_unlock(&fullstop_mutex);
-               return (-EINVAL);
+               return -EINVAL;
        }
        if (cur_ops->init)
                cur_ops->init(); /* no "goto unwind" prior to this point!!! */
@@ -1164,7 +1166,7 @@ rcu_torture_init(void)
                goto unwind;
        }
        fakewriter_tasks = kzalloc(nfakewriters * sizeof(fakewriter_tasks[0]),
-                                  GFP_KERNEL);
+                                  GFP_KERNEL);
        if (fakewriter_tasks == NULL) {
                VERBOSE_PRINTK_ERRSTRING("out of memory");
                firsterr = -ENOMEM;
@@ -1173,7 +1175,7 @@ rcu_torture_init(void)
        for (i = 0; i < nfakewriters; i++) {
                VERBOSE_PRINTK_STRING("Creating rcu_torture_fakewriter task");
                fakewriter_tasks[i] = kthread_run(rcu_torture_fakewriter, NULL,
-                                                 "rcu_torture_fakewriter");
+                                                 "rcu_torture_fakewriter");
                if (IS_ERR(fakewriter_tasks[i])) {
                        firsterr = PTR_ERR(fakewriter_tasks[i]);
                        VERBOSE_PRINTK_ERRSTRING("Failed to create fakewriter");
index 1b32cdd..52b06f6 100644 (file)
@@ -25,7 +25,7 @@
  * and inputs from Rusty Russell, Andrea Arcangeli and Andi Kleen.
  *
  * For detailed explanation of Read-Copy Update mechanism see -
- *     Documentation/RCU
+ *     Documentation/RCU
  */
 #include <linux/types.h>
 #include <linux/kernel.h>
index bf8a6f9..8e8287a 100644 (file)
@@ -142,7 +142,7 @@ struct rcu_data {
         */
        struct rcu_head *nxtlist;
        struct rcu_head **nxttail[RCU_NEXT_SIZE];
-       long            qlen;           /* # of queued callbacks */
+       long            qlen;           /* # of queued callbacks */
        long            blimit;         /* Upper limit on a processed batch */
 
 #ifdef CONFIG_NO_HZ
index 09b7325..1cee04f 100644 (file)
@@ -370,9 +370,8 @@ static void rcu_preempt_check_callbacks(int cpu)
                rcu_preempt_qs(cpu);
                return;
        }
-       if (per_cpu(rcu_preempt_data, cpu).qs_pending) {
+       if (per_cpu(rcu_preempt_data, cpu).qs_pending)
                t->rcu_read_unlock_special |= RCU_READ_UNLOCK_NEED_QS;
-       }
 }
 
 /*
index 0ea1bff..c89f5e9 100644 (file)
@@ -20,7 +20,7 @@
  * Papers:  http://www.rdrop.com/users/paulmck/RCU
  *
  * For detailed explanation of Read-Copy Update mechanism see -
- *             Documentation/RCU
+ *             Documentation/RCU
  *
  */
 #include <linux/types.h>