Commit-ID: 70691d4a0bf7c871559d4ef1b0056edefbca123b Gitweb: http://git.kernel.org/tip/70691d4a0bf7c871559d4ef1b0056edefbca123b Author: Andreea-Cristina Bernat <bernat.ada@xxxxxxxxx> AuthorDate: Fri, 22 Aug 2014 16:26:05 +0300 Committer: Ingo Molnar <mingo@xxxxxxxxxx> CommitDate: Tue, 9 Sep 2014 06:53:05 +0200 perf/core: Replace rcu_assign_pointer() with RCU_INIT_POINTER() The use of "rcu_assign_pointer()" is NULLing out the pointer. According to RCU_INIT_POINTER()'s block comment: "1. This use of RCU_INIT_POINTER() is NULLing out the pointer" it is better to use it instead of rcu_assign_pointer() because it has a smaller overhead. The following Coccinelle semantic patch was used: @@ @@ - rcu_assign_pointer + RCU_INIT_POINTER (..., NULL) Signed-off-by: Andreea-Cristina Bernat <bernat.ada@xxxxxxxxx> Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx> Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> Link: http://lkml.kernel.org/r/20140822132605.GA20130@ada Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx> --- kernel/events/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/events/core.c b/kernel/events/core.c index 01bd42e..f917dec 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -5908,7 +5908,7 @@ static void swevent_hlist_release(struct swevent_htable *swhash) if (!hlist) return; - rcu_assign_pointer(swhash->swevent_hlist, NULL); + RCU_INIT_POINTER(swhash->swevent_hlist, NULL); kfree_rcu(hlist, rcu_head); } -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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