Re: [PATCH 06/19] kernel: convert perf_event_context.refcount from atomic_t to refcount_t
From: Peter Zijlstra <hidden>
Date: 2017-02-20 10:28:25
Also in:
linux-fsdevel, lkml
From: Peter Zijlstra <hidden>
Date: 2017-02-20 10:28:25
Also in:
linux-fsdevel, lkml
On Mon, Feb 20, 2017 at 12:18:55PM +0200, Elena Reshetova wrote:
+++ b/kernel/events/core.c@@ -1108,7 +1108,7 @@ static void perf_event_ctx_deactivate(struct perf_event_context *ctx) static void get_ctx(struct perf_event_context *ctx) { - WARN_ON(!atomic_inc_not_zero(&ctx->refcount)); + WARN_ON(!refcount_inc_not_zero(&ctx->refcount)); }
You can change that to refcount_inc(), as that has the exact same semantics.