From: paulmck@kernel.org
To: rcu@vger.kernel.org
Cc: peterz@infradead.org, fweisbec@gmail.com, jiangshanlai@gmail.com,
dri-devel@lists.freedesktop.org, oleg@redhat.com,
dhowells@redhat.com, edumazet@google.com, joel@joelfernandes.org,
mingo@kernel.org, David Airlie <airlied@linux.ie>,
dipankar@in.ibm.com, "Paul E. McKenney" <paulmck@kernel.org>,
intel-gfx@lists.freedesktop.org, josh@joshtriplett.org,
mathieu.desnoyers@efficios.com, rostedt@goodmis.org,
Rodrigo Vivi <rodrigo.vivi@intel.com>,
tglx@linutronix.de, Tvrtko Ursulin <tvrtko.ursulin@intel.com>,
linux-kernel@vger.kernel.org, akpm@linux-foundation.org
Subject: [PATCH tip/core/rcu 03/10] drivers/gpu: Replace rcu_swap_protected() with rcu_replace()
Date: Tue, 22 Oct 2019 12:12:08 -0700 [thread overview]
Message-ID: <20191022191215.25781-3-paulmck@kernel.org> (raw)
In-Reply-To: <20191022191136.GA25627@paulmck-ThinkPad-P72>
From: "Paul E. McKenney" <paulmck@kernel.org>
This commit replaces the use of rcu_swap_protected() with the more
intuitively appealing rcu_replace() as a step towards removing
rcu_swap_protected().
Link: https://lore.kernel.org/lkml/CAHk-=wiAsJLw1egFEE=Z7-GGtM6wcvtyytXZA1+BHqta4gg6Hw@mail.gmail.com/
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
[ paulmck: From rcu_replace() to rcu_replace_pointer() per Ingo Molnar. ]
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: <intel-gfx@lists.freedesktop.org>
Cc: <dri-devel@lists.freedesktop.org>
---
drivers/gpu/drm/i915/gem/i915_gem_context.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_context.c b/drivers/gpu/drm/i915/gem/i915_gem_context.c
index 1cdfe05..3f3e803 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_context.c
@@ -1629,7 +1629,7 @@ set_engines(struct i915_gem_context *ctx,
i915_gem_context_set_user_engines(ctx);
else
i915_gem_context_clear_user_engines(ctx);
- rcu_swap_protected(ctx->engines, set.engines, 1);
+ set.engines = rcu_replace_pointer(ctx->engines, set.engines, 1);
mutex_unlock(&ctx->engines_mutex);
call_rcu(&set.engines->rcu, free_engines_rcu);
--
2.9.5
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next parent reply other threads:[~2019-10-22 19:12 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20191022191136.GA25627@paulmck-ThinkPad-P72>
2019-10-22 19:12 ` paulmck [this message]
2019-10-28 12:57 ` [PATCH tip/core/rcu 03/10] drivers/gpu: Replace rcu_swap_protected() with rcu_replace() Joonas Lahtinen
2019-10-28 12:57 ` [Intel-gfx] " Joonas Lahtinen
2019-10-28 13:40 ` Paul E. McKenney
2019-10-28 13:40 ` [Intel-gfx] " Paul E. McKenney
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