From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (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 3C36125A646; Mon, 27 Jan 2025 11:28:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=90.155.92.199 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737977308; cv=none; b=e3oeWDKRtViA2Jz+3SUaT0nTwm9AeSAqBVkonh7CmwItMYYfZMk9S2qQggyAoJlGKgarP+xyd8FJ9pqmKJxe7syk8BVBwi7FltFzxw45UWbSMdjsLMCg/ZE7H9Rn6GO53Pe1BZXghgGGQJa2XWoHot0WXvJA5E/NyHgRQy+OdWY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737977308; c=relaxed/simple; bh=GQoYB4Aob3xWAWnF8gpzfqf/CV52pRYvErqC2avKG9g=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=Y8mb/q00HQv/DgC5A/qsXCqOqII37GEJtI2Ms4PpQlbtp9wAIECSy4JsFdfW7yo6z+b+imVrFe5Q227g5U0WtiUcJ6HpvVAM4lfWK9huv+Pj8rGkJ/H3EJOSe4Kbsn9YGYYVeVGR9J2mO76KN0izsYLNmdGA39JPLHiSiwJWaEw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=C409MVTC; arc=none smtp.client-ip=90.155.92.199 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="C409MVTC" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=4+JW8sEw705PBUez1KwWSHcwOqxXtNjS9aj2SZZoj6w=; b=C409MVTCGBuNGnsP7NfupJWvCO j7bs5f+qVTftz6QUX1SsYFmln0BxeHtnpJpo4yQiXa5XV1pEgMdU08nN01nXgjtZgEMMzrBYtSU4K ZSjNdMpPjdYbgwySosjw6Ddo8aMegkxy0z1UpwKsCiUS43fA0o024TOK8ZkAeNk5hVxx/ldsPDuDn C35tlEBeg0eyzGIt4NaFRd/ynbK5cN1XlriwCUwMUrw0JnwT63QQzlv9nAAlBDrTI4mKmLhaKmMIM ScUH9EXYFcwHksl7V4hHQ+VIq8nbv9K4vxYImv0U0FeDFg3Vy4xVO77PFD/5qLCduY+74cRppMpcY voGtm/YQ==; Received: from 77-249-17-89.cable.dynamic.v4.ziggo.nl ([77.249.17.89] helo=noisy.programming.kicks-ass.net) by desiato.infradead.org with esmtpsa (Exim 4.98 #2 (Red Hat Linux)) id 1tcNHr-0000000EhMe-0X1s; Mon, 27 Jan 2025 11:28:15 +0000 Received: by noisy.programming.kicks-ass.net (Postfix, from userid 1000) id 8AA523004DE; Mon, 27 Jan 2025 12:28:14 +0100 (CET) Date: Mon, 27 Jan 2025 12:28:14 +0100 From: Peter Zijlstra To: Liao Chang Cc: mhiramat@kernel.org, oleg@redhat.com, mingo@redhat.com, acme@kernel.org, namhyung@kernel.org, mark.rutland@arm.com, alexander.shishkin@linux.intel.com, jolsa@kernel.org, irogers@google.com, adrian.hunter@intel.com, kan.liang@linux.intel.com, andrii.nakryiko@gmail.com, linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, bpf@vger.kernel.org Subject: Re: [PATCH v5 0/2] uprobes: Improve scalability by reducing the contention on siglock Message-ID: <20250127112814.GH16742@noisy.programming.kicks-ass.net> References: <20250124093826.2123675-1-liaochang1@huawei.com> 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: <20250124093826.2123675-1-liaochang1@huawei.com> On Fri, Jan 24, 2025 at 09:38:24AM +0000, Liao Chang wrote: > Liao Chang (2): > uprobes: Remove redundant spinlock in uprobe_deny_signal() > uprobes: Remove the spinlock within handle_singlestep() > > include/linux/uprobes.h | 1 + > kernel/events/uprobes.c | 10 +++++----- > 2 files changed, 6 insertions(+), 5 deletions(-) Thanks, I've picked up the patches but will not merge them until post -rc1.