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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2009-09-28 10:46:32 -0400
committerIngo Molnar <mingo@elte.hu>2009-10-05 15:02:02 -0400
commit3d76c082907e8f83c5d5c4572f38d53ad8f00c4b (patch)
treea39c3d3ea17dc085195626487f37995beb742ac0 /include/linux/rcupdate.h
parent162cc2794df37662beb7f97ddd1dd5bffaf85e9a (diff)
rcu: Clean up code based on review feedback from Josh Triplett, part 3
Whitespace fixes, updated comments, and trivial code movement. o Fix whitespace error in RCU_HEAD_INIT() o Move "So where is rcu_write_lock()" comment so that it does not come between the rcu_read_unlock() header comment and the rcu_read_unlock() definition. o Move the module_param statements for blimit, qhimark, and qlowmark to immediately follow the corresponding definitions. o In __rcu_offline_cpu(), move the assignment to rdp_me inside the "if" statement, given that rdp_me is not used outside of that "if" statement. 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 Cc: dhowells@redhat.com LKML-Reference: <12541491931164-git-send-email-> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/rcupdate.h')
-rw-r--r--include/linux/rcupdate.h14
1 files changed, 7 insertions, 7 deletions
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index 70331218e4b4..3ebd0b7bcb08 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -77,7 +77,7 @@ extern int rcu_scheduler_active;
77#error "Unknown RCU implementation specified to kernel configuration" 77#error "Unknown RCU implementation specified to kernel configuration"
78#endif 78#endif
79 79
80#define RCU_HEAD_INIT { .next = NULL, .func = NULL } 80#define RCU_HEAD_INIT { .next = NULL, .func = NULL }
81#define RCU_HEAD(head) struct rcu_head head = RCU_HEAD_INIT 81#define RCU_HEAD(head) struct rcu_head head = RCU_HEAD_INIT
82#define INIT_RCU_HEAD(ptr) do { \ 82#define INIT_RCU_HEAD(ptr) do { \
83 (ptr)->next = NULL; (ptr)->func = NULL; \ 83 (ptr)->next = NULL; (ptr)->func = NULL; \
@@ -129,12 +129,6 @@ static inline void rcu_read_lock(void)
129 rcu_read_acquire(); 129 rcu_read_acquire();
130} 130}
131 131
132/**
133 * rcu_read_unlock - marks the end of an RCU read-side critical section.
134 *
135 * See rcu_read_lock() for more information.
136 */
137
138/* 132/*
139 * So where is rcu_write_lock()? It does not exist, as there is no 133 * So where is rcu_write_lock()? It does not exist, as there is no
140 * way for writers to lock out RCU readers. This is a feature, not 134 * way for writers to lock out RCU readers. This is a feature, not
@@ -144,6 +138,12 @@ static inline void rcu_read_lock(void)
144 * used as well. RCU does not care how the writers keep out of each 138 * used as well. RCU does not care how the writers keep out of each
145 * others' way, as long as they do so. 139 * others' way, as long as they do so.
146 */ 140 */
141
142/**
143 * rcu_read_unlock - marks the end of an RCU read-side critical section.
144 *
145 * See rcu_read_lock() for more information.
146 */
147static inline void rcu_read_unlock(void) 147static inline void rcu_read_unlock(void)
148{ 148{
149 rcu_read_release(); 149 rcu_read_release();