From nobody Sun Feb 8 11:06:47 2026 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) (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 20457161328; Fri, 9 Aug 2024 20:10:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=90.155.50.34 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723234246; cv=none; b=EF5GOw3Sn6t0Jk5hAdYMHlz9gd8AGI2/PH6qoyLLzdL484MFjaLAYfJAuCAI6mX28R+P2UBs/2h7XjMDFOxibgy9Tuk8QjyVCBfLKspD4tlFR2eoNacLOJIhGFRx2OdhFcu1rvbTvfAlDPCgdOs9ebXymJUpgn2aHiZRO6URtm0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723234246; c=relaxed/simple; bh=jS4HNxS5YVlzJK+dlPLdW3J1aGFuw3+BwsgCSMaNG+4=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=aLn96KA2IU2p5oMzJm7Y+WR4Xn/sYh9vNwAFyNXoFmJhqS4z1jAWgvs8JlBa+63F973LUDzvdYx4i4J71kjx6d3khALEbI2h7hunvBgV7zOT7gm5Wb6yuTI1ZSb2fn0l3/7u+trg19xdnQDEYATGb0JQ2fwoOF6S11JgtE2BFlI= 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=pE6BAC6z; arc=none smtp.client-ip=90.155.50.34 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="pE6BAC6z" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:MIME-Version: Message-ID:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type:Content-ID: Content-Description:In-Reply-To:References; bh=nt6sGjTIM7+4LXnH/dUk3qctUYRRVzNRPbE3hRVC2Gk=; b=pE6BAC6zUQvLEzpOVv/+uO7xJ9 euwNlaRTco/Bgs3obsSOPBeZ5WszDJ09+DcRhxY0d0uxXbi8/nBEZYg1ATmuUrUYKXLPDDceR3Ri6 y179ov+bUbuyaVL3b2FGhUusZL48Vh//BKNyCbSSEYBFMVhxqEeDKlANMvc+FTSHOo+l20P55hX/w 1VCnIchdD8C9IhxDR391v+zMfHlhQJgQwX7iBP3/bQrn4WqJCsrSfplWFf4oK/bW32dsydR1FZyXz nkuJeMpRJnQeut2vShgKi/qC74aMxJOaitOhjTjjGrfCuh0uXO1umEpDfpZMnDW/4ObQjqd5WDyKx WWxDDewA==; Received: from willy by casper.infradead.org with local (Exim 4.97.1 #2 (Red Hat Linux)) id 1scVwh-0000000B6t6-0H2X; Fri, 09 Aug 2024 20:10:43 +0000 From: "Matthew Wilcox (Oracle)" To: Peter Zijlstra Cc: "Matthew Wilcox (Oracle)" , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] perf: Remove setting of page->index and ->mapping Date: Fri, 9 Aug 2024 21:10:36 +0100 Message-ID: <20240809201038.2648058-1-willy@infradead.org> X-Mailer: git-send-email 2.45.2 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 Content-Type: text/plain; charset="utf-8" I have no idea why perf is setting these fields. There should be no need to do this. Signed-off-by: Matthew Wilcox (Oracle) --- kernel/events/core.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/kernel/events/core.c b/kernel/events/core.c index aa3450bdc227..f55ab04f3df0 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -6221,8 +6221,6 @@ static vm_fault_t perf_mmap_fault(struct vm_fault *vm= f) goto unlock; =20 get_page(vmf->page); - vmf->page->mapping =3D vmf->vma->vm_file->f_mapping; - vmf->page->index =3D vmf->pgoff; =20 ret =3D 0; unlock: --=20 2.43.0