From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6FFF230D413; Sun, 30 Aug 2026 21:42:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788126180; cv=none; b=qcxknd7VsK0KpqgZwh2FPfc9R7Cq5eM46jNpBdYsbG+lKJoijAdmfwJaiNzERzTR98fphfSyMloSbY5cvh31bQzwOZQskQJDVdOHyG70qFJhqOjcnoUR0jd6wnqu2wpzOc7RptwSRAk2e8FAWou4GWv8WdwfKVvGcFhNa5t/bcE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788126180; c=relaxed/simple; bh=hRaS26i16WruZeTyJBkperl3nnm7i04AtZE14un5/RQ=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=g6KKozQ5wgBQKP9PH2WKPFyMxNu2cu4rBtv2e3BTjC3mPkFHG+DsQeuw655ACOXAECq9mRNp354qaDAvkZS9DDq0SdrJBoq4iZg86kfcRV6nhGHtLSXnVxX2K4Dls0Wfmc1kyEoP6LSbpckPuxwDY4hXX7SV5XXTZ8rV7NIMhKQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=FTa1GpUw; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="FTa1GpUw" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8C7341F000E9; Sun, 30 Aug 2026 21:42:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1788126179; bh=dl8bFNwxfrnmLey0gdbMgY5Jc1s9X0PzKRdnrT0qdig=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=FTa1GpUwnPkdlUoxtpcQLBHpDYGwR85eJvVImC8Yo7nvVPQykFj1ues2UzfZAcTU9 wRWkcP4VezsqNRJO/I7Zpkar83+5ulhyMspf1Rtm/QbSQVnOY9qmtJ25fUHsvcbj63 aBAhlEN9wh/M4bew6asPZmimjVhJK+YgAa2F+W1Sk6whAd7rI/cAXqC5YYuLt1XHqz kkbDF/UacqqskIGqQ0ZgdPXSEeF7o+SNx+Wk5ajilpFo/MxpergOoH5pnNMy5OZyzh pY6sYuqHHod06zAZwXzglaCcqJAkY4QRbaiEJnAF+yXD74hRfr5C4F0DYrEhytxs87 L2KoBjsvrJxlQ== Received: from phl-compute-03.internal (phl-compute-03.internal [10.202.2.43]) by mailfauth.phl.internal (Postfix) with ESMTP id 87B8DF40066; Sun, 30 Aug 2026 17:42:57 -0400 (EDT) Received: from phl-frontend-03 ([10.202.2.162]) by phl-compute-03.internal (MEProxy); Sun, 30 Aug 2026 17:42:57 -0400 X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: dmFkZTFilbYHy/sRaYQ3CxEXgbUJJ2IXxQLgnN127OkkmG9Fo2vXGxPTVWwsO0RQAgtEYR v4U0VHTz2hk++d9EKxqAY7xMaQN292py3k/SVA7ygG7bj4zgKQ/+OMl97LNwaG3FiYh5RM SZr7pjN5dqYwc4z5C5bMGSMOv4K1ydcDk8Y58q4S6TKIjbts2dv4uTpKqzw9YUIBkJYX9D ZXakwACnG92Qlg/vshMP18ZfewH5iNHvfPEPSJwa9FGe1SoUbbae5Z1rNYXCKngB+gKE18 +9znkPYhM5bGcFtl0e354kim9OWEpBip8MuUHhW2eE5j7IeoRLv1t9Ei9QwPSc4TsX7lYJ O23difZe769PuSRPquKSmu+3a4d/pg5OMJwMhCQ8H46OoSiz9PqeS4CEcg2fcsqbWXdd8G F9gSx6nQFoNdc+/rICJI7mdrHUNhbEdv3OZb78Nbs5Bsmgl4KxC7cpdmruVZp3D4QaNSOT HhErO0TW0DVql6HCHNEtgALIqva3STiX9O4QoGlGmtQH1rlL4SGZ8OTdZ0k0UexlISjcBl lzEipxrb0b0ZKa6kTUASb0soksxBWK+EsCBFAaGf99PxeUwd6ORhO3iJP26ao+BqCDuapt HtiKTn8JoNoKvM5ObveObq3iUkRZq8Y1PrmbDtrSaXteli34KcLFjT9mrXBg X-ME-Proxy: Feedback-ID: i8dbe485b:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Sun, 30 Aug 2026 17:42:57 -0400 (EDT) Date: Sun, 30 Aug 2026 14:42:56 -0700 From: Boqun Feng To: Thomas Gleixner Cc: Peter Zijlstra , linux-kernel@vger.kernel.org, linux-tip-commits@vger.kernel.org, x86@kernel.org Subject: Re: [PATCH] locking: Revert switching guards to _irq_{disable,enable}() Message-ID: References: <87jypbfu1t.ffs@fw13> <87bjanfmzz.ffs@fw13> <87wltbdvmd.ffs@fw13> <87mru5et6r.ffs@fw13> <87v78rcrf9.ffs@fw13> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <87v78rcrf9.ffs@fw13> On Sun, Aug 30, 2026 at 09:57:30PM +0200, Thomas Gleixner wrote: [...] > + > +#ifdef CONFIG_RT 0 day probably will find it, but FWIW this one should be CONFIG_PREEMPT_RT. Regards, Boqun > +static __always_inline void spin_lock_irq_disable(spinlock_t *lock) > + __acquires(lock) > +{ > + rt_spin_lock(lock); > +} > + > +static __always_inline void spin_unlock_irq_enable(spinlock_t *lock) > + __releases(lock) > +{ > + rt_spin_unlock(lock); > +} > + > +static __always_inline int spin_trylock_irq_disable(spinlock_t *lock) > + __cond_acquires(true, lock) > +{ > + return rt_spin_trylock(lock); > +} > + > +#else /* CONFIG_RT */ > + [...]