From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.3 required=3.0 tests=DKIM_ADSP_CUSTOM_MED, DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B6234C433DF for ; Fri, 29 May 2020 20:13:47 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 83C602074D for ; Fri, 29 May 2020 20:13:47 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="l/PsuhAq" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 83C602074D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 1F52C6E96B; Fri, 29 May 2020 20:13:47 +0000 (UTC) Received: from mail-vs1-xe44.google.com (mail-vs1-xe44.google.com [IPv6:2607:f8b0:4864:20::e44]) by gabe.freedesktop.org (Postfix) with ESMTPS id 292BD6E96B for ; Fri, 29 May 2020 20:13:46 +0000 (UTC) Received: by mail-vs1-xe44.google.com with SMTP id r10so2216770vsa.12 for ; Fri, 29 May 2020 13:13:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=YgW3HwIbVVt9iR94ZExwNU/b2JEaHDFzwzyHVU3/fLg=; b=l/PsuhAqQWJJop48TQdAAiLDtZ6Nkj97tTip1rt0dSSn07HL+5ghpKsEiIXp3rHKSh eAL3ZaoIU4dEfI/4QRjYe7CExpbMF84Q6nBX0Uzp4tIkqFSWo1eiTLJulyT3n0yPdU2j B1z8rP0/DHnk4hWIvoAfEEsayozG1Tj61DgLjArLyU07dvrNQ6VWySJ5cDcJG2M6fQxe 5/rz+3oL6TKSUYdLK0oO6EX/VdeRB1cjguZg2WjKVhj5EvJjuYr8CXcrbjMNA6ir9ZLB OOurzUc1k8R6V6F5NKplK0DimspYV382zBA6vE2Flf79UthfL8+9tDFuYc3ieuDIZyNY DnZw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=YgW3HwIbVVt9iR94ZExwNU/b2JEaHDFzwzyHVU3/fLg=; b=KyrmcrZXUMV+HtOGbQLgquEKH3+/5jCSCVUfQtVuEubDu3GSDu9cWvhBjD4ibDR+44 492O0RQcQDnml8PJOMU5uKBusD21Hmev/XmLgz4uVXntXNmI3r+c7Qr0VY+FkIboM1au AZcEUGIVDslP0wYd4NRlQDI5WBJ4ShIkrPbchtjmMQix1+DucEi73yhNpnMccpX5itp6 xPm6+dO7AYPbjrm+A3Ql2h6iTLOIch1moPVnp08mt34+y1EfYFV5/7O9dboQCdoaFPKs A+WcF2CRGcwRkFgKmn6teFP07aaxPAIai/gHFGYCX/F+PSaKt2dCaDFNYVzVA2PoCWor L0kA== X-Gm-Message-State: AOAM530gfIj/Z2fdLo7UXq9tbTurDFcQEjkJ+/dTtUzeGrhnJ92Bnz8p JnjFNhR7ebOhJn4NGvF2WL4eogFmo8Ixrdo9LmU= X-Google-Smtp-Source: ABdhPJwRQcrUTnbhSw1AdGEW9i9e9xHv11u5kr6fqJQKyN1JfXM7MtiA6IawbD+iS5vmPN8eAizmT19VytAGjxG0+U0= X-Received: by 2002:a67:690e:: with SMTP id e14mr7522797vsc.34.1590783225236; Fri, 29 May 2020 13:13:45 -0700 (PDT) MIME-Version: 1.0 References: <20200529183204.16850-1-chris@chris-wilson.co.uk> In-Reply-To: <20200529183204.16850-1-chris@chris-wilson.co.uk> From: Matthew Auld Date: Fri, 29 May 2020 21:13:19 +0100 Message-ID: To: Chris Wilson Subject: Re: [Intel-gfx] [PATCH 1/2] drm/i915/gem: Taint all shrinkable object locks X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Intel Graphics Development , Matthew Auld Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" On Fri, 29 May 2020 at 19:32, Chris Wilson wrote: > > If we declare that an object type is shrinkable (any that we can reclaim > to recover system pages), make sure we taint the object mutex so that > lockdep expects us to use it within fs_reclaim. lockdep will then > complain the first time we try to allocate while holding the plain > mutex, as doing so invites potential recursion. > > Signed-off-by: Chris Wilson Reviewed-by: Matthew Auld _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx