From nobody Thu Dec 18 17:44:23 2025 Received: from out-185.mta0.migadu.com (out-185.mta0.migadu.com [91.218.175.185]) (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 2172E433D9 for ; Thu, 13 Mar 2025 05:11:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.185 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741842686; cv=none; b=isdxfK40pAq1BE9o0qoxm2oRhSQdq+TlA2JzYVAqy5F4eIzRXXbvFTC/JeB0IFrHhLaR7aE2AhFe8t8Z7I3bW4vglLV3+0WCRsODEBlZ/9njKclOu9M4KwvPSaqnRz867SCh4hCLEsg0DsIH7yDTwP1Ikuf9AWAKn5gqmHzQkw0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741842686; c=relaxed/simple; bh=EcHuY3LKcEdZKoMQ5Sbrlj1yijfOPy99NAo0/AAnzQQ=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=mXJIru5bmcvbZs0YCRYOXbwzmK/x9bnTOQbd8bkWmJBQRTAQeNftwxaDtZpnL405HhWbzpnLqWE/zysQ9uLJAE6eIONrcPNwzri+6sXu3ZQB6CrTbmHPZxT16Zb9pMMXTPcwO6HDOYh/0Mr8PCLqQLLWMideR3AOCaS5M0f9SP4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=NsBpngif; arc=none smtp.client-ip=91.218.175.185 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) header.d=linux.dev header.i=@linux.dev header.b="NsBpngif" X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1741842671; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=2TXkO3ovGkx1URC0tljx+3Ih2z31JNctDg3fQBN9EHg=; b=NsBpngifCL61bVxBpNE8atNq+vqWdB52QS60MeaL9WzjodDjhs50L8c263r/DGXBeZ38zW V4G1UH6MEPljpWjTwQtfFaguh7EwpDyy2PjZ2HeCnp6oHjLzi3yRTX7GpKt1p+cru+jDV+ aJ0WcTj+g46bsGB3esVdfDesWizg69Q= From: Tao Chen To: peterz@infradead.org, 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 Cc: linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org, Tao Chen Subject: [PATCH linux-next] perf/ring_buffer: Add EPOLLRDNORM flag for poll Date: Thu, 13 Mar 2025 13:10:47 +0800 Message-Id: <20250313051047.2436098-1-chen.dylane@linux.dev> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Migadu-Flow: FLOW_OUT Content-Type: text/plain; charset="utf-8" The poll man page says POLLRDNORM is equivalent to POLLIN, so add EPOLLRDNORM here. Signed-off-by: Tao Chen --- kernel/events/ring_buffer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/events/ring_buffer.c b/kernel/events/ring_buffer.c index 59a52b1a1..5130b119d 100644 --- a/kernel/events/ring_buffer.c +++ b/kernel/events/ring_buffer.c @@ -19,7 +19,7 @@ =20 static void perf_output_wakeup(struct perf_output_handle *handle) { - atomic_set(&handle->rb->poll, EPOLLIN); + atomic_set(&handle->rb->poll, EPOLLIN | EPOLLRDNORM); =20 handle->event->pending_wakeup =3D 1; =20 --=20 2.43.0