From: Thomas Hellstrom Subject: [PATCH 0/4] drm/ttm: Get rid of a number of atomic read-modify-write ops v3 Date: Tue, 6 Nov 2012 12:31:47 +0100 Message-ID: <1352201511-6383-1-git-send-email-thellstrom@vmware.com> Return-path: Sender: linux-kernel-owner@vger.kernel.org To: airlied@gmail.com, airlied@redhat.com Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org List-Id: dri-devel@lists.freedesktop.org A patch series for next that removes a substantial number of read-modify-write operations from TTM command submission, in particular if TTM objects are used to export objects to user-space. The only per-object atomic r-m-w operations left during a typical execbuf call should be refcount up and down. v2: Formatting fixes. v3: Invert the return value of kref_get_unless_zero. Add a comment in the commit message to patch 4 that it may be obsoleted.