| From | "Paul E. McKenney" <> | Subject | [PATCH tip/core/rcu 65/86] perf,rcu: convert call_rcu(free_ctx) to kfree_rcu() | Date | Sun, 1 May 2011 06:21:45 -0700 |
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From: Lai Jiangshan <laijs@cn.fujitsu.com>
The rcu callback free_ctx() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(free_ctx).
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> --- kernel/perf_event.c | 10 +--------- 1 files changed, 1 insertions(+), 9 deletions(-)
diff --git a/kernel/perf_event.c b/kernel/perf_event.c index 27960f1..865c6f7 100644 --- a/kernel/perf_event.c +++ b/kernel/perf_event.c @@ -585,14 +585,6 @@ static void get_ctx(struct perf_event_context *ctx) WARN_ON(!atomic_inc_not_zero(&ctx->refcount)); } -static void free_ctx(struct rcu_head *head) -{ - struct perf_event_context *ctx; - - ctx = container_of(head, struct perf_event_context, rcu_head); - kfree(ctx); -} - static void put_ctx(struct perf_event_context *ctx) { if (atomic_dec_and_test(&ctx->refcount)) { @@ -600,7 +592,7 @@ static void put_ctx(struct perf_event_context *ctx) put_ctx(ctx->parent_ctx); if (ctx->task) put_task_struct(ctx->task); - call_rcu(&ctx->rcu_head, free_ctx); + kfree_rcu(ctx, rcu_head); } } -- 1.7.3.2
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