Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.98.2) (envelope-from ) id 1xEAz2-00000000xi2-3Kx8 for pgsql-hackers@arkaria.postgresql.org; Tue, 06 Oct 2026 19:37:52 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.98.2) (envelope-from ) id 1xEAz1-00000001Xjf-3WsZ for pgsql-hackers@arkaria.postgresql.org; Tue, 06 Oct 2026 19:37:51 +0000 Received: from magus.postgresql.org ([2a02:c0:301:0:ffff::29]) by malur.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.98.2) (envelope-from ) id 1xEAz1-00000001XjX-294h for pgsql-hackers@lists.postgresql.org; Tue, 06 Oct 2026 19:37:51 +0000 Received: from mail-qk1-x733.google.com ([2607:f8b0:4864:20::733]) by magus.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (Exim 4.98.2) (envelope-from ) id 1xEAyz-00000000lPi-1pEB for pgsql-hackers@lists.postgresql.org; Tue, 06 Oct 2026 19:37:51 +0000 Received: by mail-qk1-x733.google.com with SMTP id af79cd13be357-93e027da22eso62609185a.0 for ; Tue, 06 Oct 2026 12:37:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1791315467; x=1791920267; darn=lists.postgresql.org; h=in-reply-to:content-disposition:content-type:mime-version :references:message-id:subject:cc:to:from:date:from:to:cc:subject :date:message-id:reply-to:content-type; bh=xyK5yYaeyoOXGz9Z2Peh4ADyVg3uHatyD97gq2Yep3U=; b=ZAI41ycd4oCJ/K7KYcPWD6fHmSyhU0nbIx8TPMyUQz6P9w/+SisY7JU+Mr/6KPrIYy cDJTm5lkZqpxwDLWQtmsQ5fSLOG0WXAw/4ZdHwGzkQQlmXX2RkVyEvlqikb8ZxLNVVkX RuxA48R48yoTFQ1s+zo5HwJhF1hxr1LVu07Qdl9rzXnmAY+UrB+q49X4MiAiuMGCUuIM Ap4RHLg0sJ13OU249KtePRRpPNjJecFIQZTXeWLLs0fr9CpfOC5/pdj7+9joMgHvBz3G HQA7xqaOQY0Wo1iaO88HvZxX4BwLyEsdp9NnV4Cdl4qhOutVoTeobErftJlUqhtWbbsK taXg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1791315467; x=1791920267; h=in-reply-to:content-disposition:content-type:mime-version :references:message-id:subject:cc:to:from:date:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=xyK5yYaeyoOXGz9Z2Peh4ADyVg3uHatyD97gq2Yep3U=; b=bP2oHs48c6CrnV70Y8EqMl4NP1IRTElEm1w5jr2rbuW+MAcejLg4EkLdhEMGAOJey1 lsayhAX2GCiqKrEetOO5RryYFVgXEjetDWhV8RWGK1j7pf/fBMhc754ueDGGwYyVQMXC u1NEC+HkZ2Hmz6r2UlognSIFeuu0LbslxaODvLCqV/Y/M1lo2m0FdfIMevy2tfW/9SWx y4EodaIJiPxLcBAtDvEos/p1ihPokZCKEKSONg8HDcBqPTSjY0rdGcaYdDR66oTvqsY/ eom20PABmF89fLBbbLsizdQAZ6WTqVb8IeZnovqZuce9JTjPG085etvth4SqHt/Fb0uG zIGQ== X-Forwarded-Encrypted: i=1; AKwUvBz9vP+ySVj/XMtbBDJqDu+3IDPj3RkES9y26HfgD46outc6dOwe5Oq8OUw0GTRSfQ9bNamAl1tarNDxWePe@lists.postgresql.org X-Gm-Message-State: AFuF++mAJZjKEK1HZIz8raSYkmbA7I6b2iWnTTdAPqcyuoufPI50tzUX 0jNcBXhgseLcmc8cwGMzVsgRG0z+L3XgCNcQr+Lv7iR1oKwjZATlSN57 X-Gm-Gg: AYBFou02bZ+sbwV7SngP+Sp42jPPkTQgVnScjbf5IcG9WuwuQ1YKYT69/T/c3NpjNRZ xIG4EYNcDyFBGyZC9vgf1MjL1Xq8zTRp3SIStlXkLxdu+0pc12pnEFJy/WQac84cxQOrZxt2qKv UaIqU1lTRXSEz+o5+8zNHXl7pRSftYxRue1xlaTllBFaXMfc5kVf0cFqrl4RMwJi70Zq9VL/2J2 FPaenEw2yoPqHEihjuJx9KmdpQEfDuchJ9n2Ocd6bc+JlxvYxa1j2q112scxco6dFEP6mW/GNnu h55Z0X9aGgIXKpzXxw1KHBAUGv+dcrsLG9wHScfzLFBMcWTgAzttsba9TE+fqvPB4ePkf7UB9aI uxEuEBlEJp9AfIkx7nPBkx027vgMdI2hjQ7M9AqXqSJLWao1cq0sl0livczYekx7ubyTE98TCaf gH4yZR08DjIsU0X3sBGkZf4ENv/J97u3OldibpdOSUktdX4xO7f/C7V6hv/oQz9h1tRL2L4hot3 7Zn/ulNchT9vHvIlHsSl4Z+1tlV40tBZzbrAnowdt4GvVTDwV+vUCS8mL61Xtn2RY4FDqZJFRBu G3S9j166aeTnlm64dWlbBeU9XA== X-Received: by 2002:a05:620a:648a:b0:93e:5055:875c with SMTP id af79cd13be357-93e8f35ec1fmr482092485a.31.1791315466736; Tue, 06 Oct 2026 12:37:46 -0700 (PDT) Received: from nathan (162-195-168-172.lightspeed.stlsmo.sbcglobal.net. [162.195.168.172]) by smtp.gmail.com with ESMTPSA id 6a1803df08f44-91996d52f41sm1356416d6.34.2026.10.06.12.37.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 06 Oct 2026 12:37:46 -0700 (PDT) Date: Tue, 6 Oct 2026 14:37:44 -0500 From: Nathan Bossart To: Salvatore Dipietro Cc: greg@burd.me, pgsql-hackers@lists.postgresql.org, mrdrivingduck@gmail.com, andres@anarazel.de, tgl@sss.pgh.pa.us, dipietro.salvatore@gmail.com Subject: Re: use a non-locking initial test in TAS_SPIN on AArch64 Message-ID: References: <6EDE0F59-5517-4F52-9584-A9252E59317E@burd.me> <20260916120848.3437130-1-dipiets@amazon.it> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260916120848.3437130-1-dipiets@amazon.it> List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk I've back-patched commit 3d0b4b1068 down to v15. -- nathan