Patch Detail
get:
Show a patch.
patch:
Update a patch.
put:
Update a patch.
GET /api/patches/814589/?format=api
{ "id": 814589, "url": "http://patchwork.ozlabs.org/api/patches/814589/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/1505621128-23877-7-git-send-email-sukadev@linux.vnet.ibm.com/", "project": { "id": 2, "url": "http://patchwork.ozlabs.org/api/projects/2/?format=api", "name": "Linux PPC development", "link_name": "linuxppc-dev", "list_id": "linuxppc-dev.lists.ozlabs.org", "list_email": "linuxppc-dev@lists.ozlabs.org", "web_url": "https://github.com/linuxppc/wiki/wiki", "scm_url": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git", "webscm_url": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/", "list_archive_url": "https://lore.kernel.org/linuxppc-dev/", "list_archive_url_format": "https://lore.kernel.org/linuxppc-dev/{}/", "commit_url_format": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?id={}" }, "msgid": "<1505621128-23877-7-git-send-email-sukadev@linux.vnet.ibm.com>", "list_archive_url": "https://lore.kernel.org/linuxppc-dev/1505621128-23877-7-git-send-email-sukadev@linux.vnet.ibm.com/", "date": "2017-09-17T04:05:24", "name": "[06/10] powerpc/vas: Reduce polling interval for busy state", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": true, "hash": "1105650c4509c80cd0261f4c78fec48c9258a07b", "submitter": { "id": 984, "url": "http://patchwork.ozlabs.org/api/people/984/?format=api", "name": "Sukadev Bhattiprolu", "email": "sukadev@linux.vnet.ibm.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/1505621128-23877-7-git-send-email-sukadev@linux.vnet.ibm.com/mbox/", "series": [ { "id": 3482, "url": "http://patchwork.ozlabs.org/api/series/3482/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=3482", "date": "2017-09-17T04:05:19", "name": "powerpc/vas: cleanup and optimizations", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/3482/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/814589/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/814589/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org>", "X-Original-To": [ "patchwork-incoming@ozlabs.org", "linuxppc-dev@lists.ozlabs.org" ], "Delivered-To": [ "patchwork-incoming@ozlabs.org", "linuxppc-dev@lists.ozlabs.org", "linuxppc-dev@ozlabs.org" ], "Received": [ "from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3])\n\t(using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xvwlz1M4Rz9s7h\n\tfor <patchwork-incoming@ozlabs.org>;\n\tSun, 17 Sep 2017 14:15:27 +1000 (AEST)", "from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3])\n\tby lists.ozlabs.org (Postfix) with ESMTP id 3xvwlz0VhlzDscD\n\tfor <patchwork-incoming@ozlabs.org>;\n\tSun, 17 Sep 2017 14:15:27 +1000 (AEST)", "from ozlabs.org (bilbo.ozlabs.org [103.22.144.67])\n\t(using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby lists.ozlabs.org (Postfix) with ESMTPS id 3xvwXt1wQ2zDrpH\n\tfor <linuxppc-dev@lists.ozlabs.org>;\n\tSun, 17 Sep 2017 14:05:50 +1000 (AEST)", "from ozlabs.org (ozlabs.org [IPv6:2401:3900:2:1::2])\n\tby bilbo.ozlabs.org (Postfix) with ESMTP id 3xvwXs6bnzz8t3H\n\tfor <linuxppc-dev@lists.ozlabs.org>;\n\tSun, 17 Sep 2017 14:05:49 +1000 (AEST)", "by ozlabs.org (Postfix)\n\tid 3xvwXs5lSRz9t2f; Sun, 17 Sep 2017 14:05:49 +1000 (AEST)", "from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com\n\t[148.163.156.1])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256\n\tbits)) (No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xvwXs2bjkz9t2V\n\tfor <linuxppc-dev@ozlabs.org>; Sun, 17 Sep 2017 14:05:49 +1000 (AEST)", "from pps.filterd (m0098410.ppops.net [127.0.0.1])\n\tby mx0a-001b2d01.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id\n\tv8H44PWU049183\n\tfor <linuxppc-dev@ozlabs.org>; Sun, 17 Sep 2017 00:05:47 -0400", "from e33.co.us.ibm.com (e33.co.us.ibm.com [32.97.110.151])\n\tby mx0a-001b2d01.pphosted.com with ESMTP id 2d10ggga5j-1\n\t(version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT)\n\tfor <linuxppc-dev@ozlabs.org>; Sun, 17 Sep 2017 00:05:47 -0400", "from localhost\n\tby e33.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use\n\tOnly! Violators will be prosecuted\n\tfor <linuxppc-dev@ozlabs.org> from <sukadev@linux.vnet.ibm.com>;\n\tSat, 16 Sep 2017 22:05:47 -0600", "from b03cxnp07028.gho.boulder.ibm.com (9.17.130.15)\n\tby e33.co.us.ibm.com (192.168.1.133) with IBM ESMTP SMTP Gateway:\n\tAuthorized Use Only! Violators will be prosecuted; \n\tSat, 16 Sep 2017 22:05:44 -0600", "from b03ledav005.gho.boulder.ibm.com\n\t(b03ledav005.gho.boulder.ibm.com [9.17.130.236])\n\tby b03cxnp07028.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with\n\tESMTP id v8H45hsQ4129166; Sat, 16 Sep 2017 21:05:43 -0700", "from b03ledav005.gho.boulder.ibm.com (unknown [127.0.0.1])\n\tby IMSVA (Postfix) with ESMTP id A9E5DBE044;\n\tSat, 16 Sep 2017 22:05:43 -0600 (MDT)", "from suka-w540.usor.ibm.com (unknown [9.70.94.25])\n\tby b03ledav005.gho.boulder.ibm.com (Postfix) with ESMTP id 3C167BE03E;\n\tSat, 16 Sep 2017 22:05:43 -0600 (MDT)" ], "Authentication-Results": "ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=linux.vnet.ibm.com\n\t(client-ip=148.163.156.1; helo=mx0a-001b2d01.pphosted.com;\n\tenvelope-from=sukadev@linux.vnet.ibm.com; receiver=<UNKNOWN>)", "From": "Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>", "To": "Michael Ellerman <mpe@ellerman.id.au>", "Subject": "[PATCH 06/10] powerpc/vas: Reduce polling interval for busy state", "Date": "Sat, 16 Sep 2017 21:05:24 -0700", "X-Mailer": "git-send-email 2.7.4", "In-Reply-To": "<1505621128-23877-1-git-send-email-sukadev@linux.vnet.ibm.com>", "References": "<1505621128-23877-1-git-send-email-sukadev@linux.vnet.ibm.com>", "X-TM-AS-GCONF": "00", "x-cbid": "17091704-0008-0000-0000-000008951204", "X-IBM-SpamModules-Scores": "", "X-IBM-SpamModules-Versions": "BY=3.00007754; HX=3.00000241; KW=3.00000007;\n\tPH=3.00000004; SC=3.00000229; SDB=6.00918138; UDB=6.00461174;\n\tIPR=6.00698363; \n\tBA=6.00005592; NDR=6.00000001; ZLA=6.00000005; ZF=6.00000009;\n\tZB=6.00000000; \n\tZP=6.00000000; ZH=6.00000000; ZU=6.00000002; MB=3.00017185;\n\tXFM=3.00000015; UTC=2017-09-17 04:05:46", "X-IBM-AV-DETECTION": "SAVI=unused REMOTE=unused XFE=unused", "x-cbparentid": "17091704-0009-0000-0000-00004400E397", "Message-Id": "<1505621128-23877-7-git-send-email-sukadev@linux.vnet.ibm.com>", "X-Proofpoint-Virus-Version": "vendor=fsecure engine=2.50.10432:, ,\n\tdefinitions=2017-09-17_03:, , signatures=0", "X-Proofpoint-Spam-Details": "rule=outbound_notspam policy=outbound score=0\n\tspamscore=0 suspectscore=0\n\tmalwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam\n\tadjust=0 reason=mlx scancount=1 engine=8.0.1-1707230000\n\tdefinitions=main-1709170058", "X-BeenThere": "linuxppc-dev@lists.ozlabs.org", "X-Mailman-Version": "2.1.24", "Precedence": "list", "List-Id": "Linux on PowerPC Developers Mail List\n\t<linuxppc-dev.lists.ozlabs.org>", "List-Unsubscribe": "<https://lists.ozlabs.org/options/linuxppc-dev>,\n\t<mailto:linuxppc-dev-request@lists.ozlabs.org?subject=unsubscribe>", "List-Archive": "<http://lists.ozlabs.org/pipermail/linuxppc-dev/>", "List-Post": "<mailto:linuxppc-dev@lists.ozlabs.org>", "List-Help": "<mailto:linuxppc-dev-request@lists.ozlabs.org?subject=help>", "List-Subscribe": "<https://lists.ozlabs.org/listinfo/linuxppc-dev>,\n\t<mailto:linuxppc-dev-request@lists.ozlabs.org?subject=subscribe>", "Cc": "linuxppc-dev@ozlabs.org, mikey@neuling.org, linux-kernel@vger.kernel.org", "Errors-To": "linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org", "Sender": "\"Linuxppc-dev\"\n\t<linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org>" }, "content": "A VAS window is normally in \"busy\" state for only a short duration.\nReduce the time we wait for the window to go to \"not-busy\" state to\nspeed-up vas_win_close() a bit.\n\nSigned-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>\n---\n arch/powerpc/platforms/powernv/vas-window.c | 10 ++++++----\n 1 file changed, 6 insertions(+), 4 deletions(-)", "diff": "diff --git a/arch/powerpc/platforms/powernv/vas-window.c b/arch/powerpc/platforms/powernv/vas-window.c\nindex 95622a9..1422cdd 100644\n--- a/arch/powerpc/platforms/powernv/vas-window.c\n+++ b/arch/powerpc/platforms/powernv/vas-window.c\n@@ -1060,21 +1060,23 @@ int vas_paste_crb(struct vas_window *txwin, int offset, bool re)\n }\n EXPORT_SYMBOL_GPL(vas_paste_crb);\n \n+/*\n+ * Wait for the window to go to \"not-busy\" state. It should only take a\n+ * short time to queue a CRB, so window should not be busy for too long.\n+ * Trying 5ms intervals.\n+ */\n static void poll_window_busy_state(struct vas_window *window)\n {\n \tint busy;\n \tu64 val;\n \n retry:\n-\t/*\n-\t * Poll Window Busy flag\n-\t */\n \tval = read_hvwc_reg(window, VREG(WIN_STATUS));\n \tbusy = GET_FIELD(VAS_WIN_BUSY, val);\n \tif (busy) {\n \t\tval = 0;\n \t\tset_current_state(TASK_UNINTERRUPTIBLE);\n-\t\tschedule_timeout(HZ);\n+\t\tschedule_timeout(msecs_to_jiffies(5));\n \t\tgoto retry;\n \t}\n }\n", "prefixes": [ "06/10" ] }