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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2014-11-21 12:49:13 -0800
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2015-01-10 19:07:56 -0800
commit9733e4f0a973a354034f5dd603b4142a3095c85f (patch)
treecf272877ec7a0e2ddf0cafdd78663ed38a32805e /kernel/rcu
parent79619cf5151257f82a4c016b02283e2ceb4b63ce (diff)
downloadlinux-9733e4f0a973a354034f5dd603b4142a3095c85f.tar.bz2
rcu: Make _batches_completed() functions return unsigned long
Long ago, the various ->completed fields were of type long, but now are unsigned long due to signed-integer-overflow concerns. However, the various _batches_completed() functions remained of type long, even though their only purpose in life is to return the corresponding ->completed field. This patch cleans this up by changing these functions' return types to unsigned long. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/rcu')
-rw-r--r--kernel/rcu/tree.c4
-rw-r--r--kernel/rcu/tree.h2
-rw-r--r--kernel/rcu/tree_plugin.h6
3 files changed, 6 insertions, 6 deletions
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 4c106fcc0d54..e26d78712e16 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -317,7 +317,7 @@ static int rcu_pending(void);
/*
* Return the number of RCU-sched batches processed thus far for debug & stats.
*/
-long rcu_batches_completed_sched(void)
+unsigned long rcu_batches_completed_sched(void)
{
return rcu_sched_state.completed;
}
@@ -326,7 +326,7 @@ EXPORT_SYMBOL_GPL(rcu_batches_completed_sched);
/*
* Return the number of RCU BH batches processed thus far for debug & stats.
*/
-long rcu_batches_completed_bh(void)
+unsigned long rcu_batches_completed_bh(void)
{
return rcu_bh_state.completed;
}
diff --git a/kernel/rcu/tree.h b/kernel/rcu/tree.h
index 8e7b1843896e..1a07d7379ac6 100644
--- a/kernel/rcu/tree.h
+++ b/kernel/rcu/tree.h
@@ -546,7 +546,7 @@ DECLARE_PER_CPU(char, rcu_cpu_has_work);
/* Forward declarations for rcutree_plugin.h */
static void rcu_bootup_announce(void);
-long rcu_batches_completed(void);
+unsigned long rcu_batches_completed(void);
static void rcu_preempt_note_context_switch(void);
static int rcu_preempt_blocked_readers_cgp(struct rcu_node *rnp);
#ifdef CONFIG_HOTPLUG_CPU
diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
index 3ec85cb5d544..f69300d4a51f 100644
--- a/kernel/rcu/tree_plugin.h
+++ b/kernel/rcu/tree_plugin.h
@@ -117,7 +117,7 @@ static void __init rcu_bootup_announce(void)
* Return the number of RCU-preempt batches processed thus far
* for debug and statistics.
*/
-static long rcu_batches_completed_preempt(void)
+static unsigned long rcu_batches_completed_preempt(void)
{
return rcu_preempt_state.completed;
}
@@ -126,7 +126,7 @@ EXPORT_SYMBOL_GPL(rcu_batches_completed_preempt);
/*
* Return the number of RCU batches processed thus far for debug & stats.
*/
-long rcu_batches_completed(void)
+unsigned long rcu_batches_completed(void)
{
return rcu_batches_completed_preempt();
}
@@ -935,7 +935,7 @@ static void __init rcu_bootup_announce(void)
/*
* Return the number of RCU batches processed thus far for debug & stats.
*/
-long rcu_batches_completed(void)
+unsigned long rcu_batches_completed(void)
{
return rcu_batches_completed_sched();
}