Patch Detail
Show a patch.
GET /api/1.1/patches/2961/?format=api
{ "id": 2961, "url": "https://patchwork.libcamera.org/api/1.1/patches/2961/?format=api", "web_url": "https://patchwork.libcamera.org/patch/2961/", "project": { "id": 1, "url": "https://patchwork.libcamera.org/api/1.1/projects/1/?format=api", "name": "libcamera", "link_name": "libcamera", "list_id": "libcamera_core", "list_email": "libcamera-devel@lists.libcamera.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20200304232246.325384-6-niklas.soderlund@ragnatech.se>", "date": "2020-03-04T23:22:44", "name": "[libcamera-devel,v3,5/7] libcamera: V4L2BufferCache: Check for hot hit first", "commit_ref": null, "pull_url": null, "state": "accepted", "archived": false, "hash": "04d03850cb3eb4262dcaacfdf90c940eb144d47c", "submitter": { "id": 5, "url": "https://patchwork.libcamera.org/api/1.1/people/5/?format=api", "name": "Niklas Söderlund", "email": "niklas.soderlund@ragnatech.se" }, "delegate": null, "mbox": "https://patchwork.libcamera.org/patch/2961/mbox/", "series": [ { "id": 701, "url": "https://patchwork.libcamera.org/api/1.1/series/701/?format=api", "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=701", "date": "2020-03-04T23:22:39", "name": "libcamera: V4L2BufferCache: Improve cache", "version": 3, "mbox": "https://patchwork.libcamera.org/series/701/mbox/" } ], "comments": "https://patchwork.libcamera.org/api/patches/2961/comments/", "check": "pending", "checks": "https://patchwork.libcamera.org/api/patches/2961/checks/", "tags": {}, "headers": { "Return-Path": "<niklas.soderlund@ragnatech.se>", "Received": [ "from bin-mail-out-06.binero.net (bin-mail-out-06.binero.net\n\t[195.74.38.229])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id EE0A86287F\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tThu, 5 Mar 2020 00:23:47 +0100 (CET)", "from bismarck.berto.se (p4fca2392.dip0.t-ipconnect.de\n\t[79.202.35.146]) by bin-vsp-out-01.atm.binero.net (Halon) with ESMTPA\n\tid 3286f990-5e6f-11ea-9f85-005056917a89;\n\tThu, 05 Mar 2020 00:23:47 +0100 (CET)" ], "X-Halon-ID": "3286f990-5e6f-11ea-9f85-005056917a89", "Authorized-sender": "niklas@soderlund.pp.se", "From": "=?utf-8?q?Niklas_S=C3=B6derlund?= <niklas.soderlund@ragnatech.se>", "To": "libcamera-devel@lists.libcamera.org", "Date": "Thu, 5 Mar 2020 00:22:44 +0100", "Message-Id": "<20200304232246.325384-6-niklas.soderlund@ragnatech.se>", "X-Mailer": "git-send-email 2.25.1", "In-Reply-To": "<20200304232246.325384-1-niklas.soderlund@ragnatech.se>", "References": "<20200304232246.325384-1-niklas.soderlund@ragnatech.se>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=UTF-8", "Content-Transfer-Encoding": "8bit", "Subject": "[libcamera-devel] [PATCH v3 5/7] libcamera: V4L2BufferCache: Check\n\tfor hot hit first", "X-BeenThere": "libcamera-devel@lists.libcamera.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "<libcamera-devel.lists.libcamera.org>", "List-Unsubscribe": "<https://lists.libcamera.org/options/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=unsubscribe>", "List-Archive": "<https://lists.libcamera.org/pipermail/libcamera-devel/>", "List-Post": "<mailto:libcamera-devel@lists.libcamera.org>", "List-Help": "<mailto:libcamera-devel-request@lists.libcamera.org?subject=help>", "List-Subscribe": "<https://lists.libcamera.org/listinfo/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=subscribe>", "X-List-Received-Date": "Wed, 04 Mar 2020 23:23:48 -0000" }, "content": "Check for a hot cache hit before updating which buffer is best to evict\nin case no hot hit is found.\n\nSuggested-by: Jacopo Mondi <jacopo@jmondi.org>\nSigned-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>\n---\n src/libcamera/v4l2_videodevice.cpp | 6 +++---\n 1 file changed, 3 insertions(+), 3 deletions(-)", "diff": "diff --git a/src/libcamera/v4l2_videodevice.cpp b/src/libcamera/v4l2_videodevice.cpp\nindex 268de60bc7965f58..c495de85f26efe14 100644\n--- a/src/libcamera/v4l2_videodevice.cpp\n+++ b/src/libcamera/v4l2_videodevice.cpp\n@@ -212,15 +212,15 @@ int V4L2BufferCache::get(const FrameBuffer &buffer)\n \t\tif (!entry.free)\n \t\t\tcontinue;\n \n-\t\tif (use < 0)\n-\t\t\tuse = index;\n-\n \t\t/* Try to find a cache hit by comparing the planes. */\n \t\tif (entry == buffer) {\n \t\t\thit = true;\n \t\t\tuse = index;\n \t\t\tbreak;\n \t\t}\n+\n+\t\tif (use < 0)\n+\t\t\tuse = index;\n \t}\n \n \tif (!hit)\n", "prefixes": [ "libcamera-devel", "v3", "5/7" ] }