From mboxrd@z Thu Jan 1 00:00:00 1970 From: Uros Bizjak Subject: [PATCH 09/10] locking/x86: Enable local{,64}_try_cmpxchg Date: Sun, 5 Mar 2023 21:56:27 +0100 Message-ID: <20230305205628.27385-10-ubizjak@gmail.com> References: <20230305205628.27385-1-ubizjak@gmail.com> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; t=1678049827; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=5Rhi81UV6n4gJ23KpYxVv3UnO+FDfYmlmuIH3bT2sEE=; b=aaSodGvZdSV4IP+c2rumCkx8LxrQY+OBcusU42ckg9I4HKl7svI97bHUL8PVa79jUn xPkYv74szn3W9Ezoiv7g17E92uqKZF9Q6lBk+rGSEagwXuvpV3i07e8Pkz9ghdOWM4i1 iAl7K94WX200NR6mzgorkcWMi2oDE5W7MB8oFzbbHYstFEsoUP9VT8+2rb1+kLDxgFBE ZcscWfl9eYRBg4Ct/7ikk8jQHl/U1WRWKyYDrbRBQqttA6QIp2sq8CY+PM01/wuGFC2y y6zmednb1IPxVz9Qo9+FsPJS256xZdDaz0IlmMKsI4jFxJQKu6pKz93CrGfjPPmVLESV KAMA== In-Reply-To: <20230305205628.27385-1-ubizjak@gmail.com> List-ID: Content-Type: text/plain; charset="us-ascii" To: linux-alpha@vger.kernel.org, linux-kernel@vger.kernel.org, loongarch@lists.linux.dev, linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-arch@vger.kernel.org, linux-perf-users@vger.kernel.org Cc: Uros Bizjak , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , "H. Peter Anvin" Enable local_try_cmpxchg and also local64_try_cmpxchg for x86_64. Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Borislav Petkov Cc: Dave Hansen Cc: "H. Peter Anvin" Signed-off-by: Uros Bizjak --- arch/x86/include/asm/cmpxchg.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/x86/include/asm/cmpxchg.h b/arch/x86/include/asm/cmpxchg.h index 94fbe6ae7431..e8f939e8432e 100644 --- a/arch/x86/include/asm/cmpxchg.h +++ b/arch/x86/include/asm/cmpxchg.h @@ -221,9 +221,15 @@ extern void __add_wrong_size(void) #define __try_cmpxchg(ptr, pold, new, size) \ __raw_try_cmpxchg((ptr), (pold), (new), (size), LOCK_PREFIX) +#define __try_cmpxchg_local(ptr, pold, new, size) \ + __raw_try_cmpxchg((ptr), (pold), (new), (size), "") + #define arch_try_cmpxchg(ptr, pold, new) \ __try_cmpxchg((ptr), (pold), (new), sizeof(*(ptr))) +#define arch_try_cmpxchg_local(ptr, pold, new) \ + __try_cmpxchg_local((ptr), (pold), (new), sizeof(*(ptr))) + /* * xadd() adds "inc" to "*ptr" and atomically returns the previous * value of "*ptr". -- 2.39.2