From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=95.215.58.10 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794179549; b=ulkU3I+UCGrYmTxgLbnGwnG1gKsBZLxP/VoDfU2WAffcDMziIiTVR1onisqWN+yCmjvI sjaP7ju3IYFtZKk6Gsfb+9CgYkVbSZ8lFyM5wqd2WK3Hz8rxrFLHcWUueYLWDeNZi7i6U /ZbdswJUQCdJk9C+Cj/NVvqoMz9E7gmZsXpC+b2tISdK7agwiljPlxGqXTMXUQVuZqrQb 9C7XcOhKCBU10yEmvTcYO64Oyox8aFF+ybUhcsK9iLfk72+BIF5O3yKmPeUGFjEViqfBB 54pc0ceUTqZFoElajb/EGW8DB+pW5ggXg79i2KKXxIxeU/GfLLMCIuUBftjHNjG+xXQ== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794179549; h=DMARC-Filter:X-Envelope-To:DKIM-Signature:X-Envelope-To:Received: X-Mizu-Trace-ID:X-Migadu-Flow:Message-ID:Date:MIME-Version:User-Agent: Subject:From:To:Cc:References:Content-Language:In-Reply-To: Content-Type:Content-Transfer-Encoding; bh=CXQaE7qbV7eGxhp+28lFx0wX6wKu8htmvAmFNqL4VzI=; b=B+bKT0ZR+uTN1MUlxpv/Jpo7tZPyDNQqWGTt9yBb2LfdGhbkwZtCI7eiI/jIzPDAmqRr K6nBYypagJm0HZpf6zX6jpFQxqKtbAeSUAxOnL5wMd5/MLR1r4VxnwPbbLIFx4MCl/EhD 389edNXmeJQC8fMUXM8/msYtJ9IPp3xxK3Ua8dkcrf/ByONe/VdinJKMZNZoHFZ86EaJy T1YCpfQa1+KC8jsJqAvRnZIBThssa6GUUv8/zuuIXEG7vuTPs98wyrF39k9DaylJpvgD1 IRbZ8iFD5XfcprnKKaTl4T/e/+CTZkVoToD2R6NJTwGEmzUP2ydm8wuQP0KcOXbKQbw== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass header.d=linux.dev header.i=@linux.dev header.a=rsa-sha256 header.s=key1 header.b=FhynY7vy; arc=none smtp.remote-ip=95.215.58.10 Received: from mta1.migadu.com (out-10.mta1.migadu.com [95.215.58.10]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CBE91606A31C for ; Sun, 8 Nov 2026 23:12:26 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org CBE91606A31C Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key, unprotected) header.d=linux.dev header.i=@linux.dev header.a=rsa-sha256 header.s=key1 header.b=FhynY7vy X-Envelope-To: linux-kernel@vger.kernel.org DKIM-Signature: a=rsa-sha256; bh=uBz62HipOUpV8FMMhhDpcgo86aJTWb6jnbXPRjMq07s=; c=simple/simple; d=linux.dev; h=from:to:subject:date:message-id:mime-version:content-type; s=key1; t=1794179544; v=1; x=1794784344; b=FhynY7vypwbTH9C2GVgf+ELSdqPZ2nvlql2cYf4Y9+UDNNV1s+M4jXEFZnWLt2vhHscqCdAh ztsxTqCGIxlVdcyiii6yLlNN8PEl2u1IhxS4VbfXqFHxnecdQOsdEckGPmK9ryY6jpQWhXZnuhy XeWr0bRndzX3/W7IV00QF+3Q= X-Envelope-To: linux-kernel@vger.kernel.org Received: by smtp.migadu.com with ESMTPS id c8a84526f0e83049; Sun, 08 Nov 2026 23:12:24 +0000 X-Mizu-Trace-ID: c8a84526f0e83049 X-Migadu-Flow: FLOW_OUT Message-ID: <490eace6-4ad4-418e-8ef5-5abf18bc8c17@linux.dev> Date: Sun, 8 Nov 2026 15:12:18 -0800 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v4 1/2] tracing: fgraph: allocate shadow stacks inline with GFP_NOWAIT From: Vineet Gupta To: Steven Rostedt Cc: Andrii Nakryiko , mhiramat@kernel.org, mark.rutland@arm.com, mathieu.desnoyers@efficios.com, andrii@kernel.org, peterz@infradead.org, linux-trace-kernel@vger.kernel.org, linux-kernel@vger.kernel.org, bpf@vger.kernel.org, kernel-team@meta.com, stable@vger.kernel.org References: <20261021174406.2891598-1-vineet.gupta@linux.dev> <20261021174406.2891598-2-vineet.gupta@linux.dev> <20261023143816.48163575@gandalf.local.home> <75b66acc-354e-4cd2-b9cb-4c22e8a02635@linux.dev> <20261023180902.2bf7cef4@gandalf.local.home> <88f41f2c-4226-4122-9627-4fc29a29b99b@linux.dev> Content-Language: en-US In-Reply-To: <88f41f2c-4226-4122-9627-4fc29a29b99b@linux.dev> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 10/23/26 3:25 PM, Vineet Gupta wrote: > On 10/23/26 3:09 PM, Steven Rostedt wrote: >> On Fri, 23 Oct 2026 13:13:41 -0700 >> Vineet Gupta wrote: >> >>> On 10/23/26 11:38 AM, Steven Rostedt wrote: >>>> On Fri, 23 Oct 2026 11:13:44 -0700 >>>> Andrii Nakryiko wrote: >>>> >>>>> Acked-by: Andrii Nakryiko >>>>> >>>>> I presume this will go through Masami and Steven's tree, is that right? >>>> Yes, but it came in during the merge window, and since it's just a speed up >>>> and not fixing something that's broken, I was going to let this go in the >>>> next merge window. I rather have a change like this sit through a full -rc >>>> release. >>> It is a speed up but not for optimization sake but to cure rcu stalls in >>> production at Meta. IMHO it should go in sooner than wait a full release >>> cycle. >>> >> Either way, I'd like to give it a bit more testing first. That is, the >> earliest it will go is after -rc1. > That's fair. ping !