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=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham 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 EF7FEC2D0DB for ; Tue, 28 Jan 2020 18:35:09 +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 CBC2E22522 for ; Tue, 28 Jan 2020 18:35:09 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CBC2E22522 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=chris-wilson.co.uk 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 6F7996F381; Tue, 28 Jan 2020 18:35:09 +0000 (UTC) Received: from fireflyinternet.com (mail.fireflyinternet.com [109.228.58.192]) by gabe.freedesktop.org (Postfix) with ESMTPS id B89F76F381 for ; Tue, 28 Jan 2020 18:35:07 +0000 (UTC) X-Default-Received-SPF: pass (skip=forwardok (res=PASS)) x-ip-name=78.156.65.138; Received: from haswell.alporthouse.com (unverified [78.156.65.138]) by fireflyinternet.com (Firefly Internet (M1)) with ESMTP id 20039451-1500050 for multiple; Tue, 28 Jan 2020 18:34:59 +0000 From: Chris Wilson To: intel-gfx@lists.freedesktop.org Date: Tue, 28 Jan 2020 18:34:58 +0000 Message-Id: <20200128183458.3860022-1-chris@chris-wilson.co.uk> X-Mailer: git-send-email 2.25.0 MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH] drm/i915/selftests: Lock the drm_mm as we search 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: matthew.auld@intel.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Hold onto the vm->mutex (to lock the drm_mm) to ensure that the rbtree is table as we search it for our scratch node. Signed-off-by: Chris Wilson --- drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c index 130c4c522686..375d864736f3 100644 --- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c +++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c @@ -1465,9 +1465,12 @@ static int igt_ctx_readonly(void *arg) static int check_scratch(struct i915_address_space *vm, u64 offset) { - struct drm_mm_node *node = - __drm_mm_interval_first(&vm->mm, - offset, offset + sizeof(u32) - 1); + struct drm_mm_node *node; + + mutex_lock(&vm->mutex); + node = __drm_mm_interval_first(&vm->mm, + offset, offset + sizeof(u32) - 1); + mutex_unlock(&vm->mutex); if (!node || node->start > offset) return 0; -- 2.25.0 _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx