Patch Detail
get:
Show a patch.
patch:
Update a patch.
put:
Update a patch.
GET /api/1.2/patches/831047/?format=api
{ "id": 831047, "url": "http://patchwork.ozlabs.org/api/1.2/patches/831047/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20171027040833.3644-6-aneesh.kumar@linux.vnet.ibm.com/", "project": { "id": 2, "url": "http://patchwork.ozlabs.org/api/1.2/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": "<20171027040833.3644-6-aneesh.kumar@linux.vnet.ibm.com>", "list_archive_url": "https://lore.kernel.org/linuxppc-dev/20171027040833.3644-6-aneesh.kumar@linux.vnet.ibm.com/", "date": "2017-10-27T04:08:22", "name": "[05/16] powerpc/mm: use hash_invalidate for __kernel_map_pages()", "commit_ref": null, "pull_url": null, "state": "changes-requested", "archived": false, "hash": "530f48c3f2b6840ebc77e353f0abadc0f1a9affe", "submitter": { "id": 664, "url": "http://patchwork.ozlabs.org/api/1.2/people/664/?format=api", "name": "Aneesh Kumar K.V", "email": "aneesh.kumar@linux.vnet.ibm.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20171027040833.3644-6-aneesh.kumar@linux.vnet.ibm.com/mbox/", "series": [ { "id": 10486, "url": "http://patchwork.ozlabs.org/api/1.2/series/10486/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=10486", "date": "2017-10-27T04:08:17", "name": "Remove hash page table slot tracking from linux PTE", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/10486/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/831047/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/831047/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" ], "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 3yNVw42ddTz9t2S\n\tfor <patchwork-incoming@ozlabs.org>;\n\tFri, 27 Oct 2017 15:17:40 +1100 (AEDT)", "from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3])\n\tby lists.ozlabs.org (Postfix) with ESMTP id 3yNVw41rfMzDrkB\n\tfor <patchwork-incoming@ozlabs.org>;\n\tFri, 27 Oct 2017 15:17:40 +1100 (AEDT)", "from mx0a-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com\n\t[148.163.158.5])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256\n\tbits)) (No client certificate requested)\n\tby lists.ozlabs.org (Postfix) with ESMTPS id 3yNVkS0kSpzDrcq\n\tfor <linuxppc-dev@lists.ozlabs.org>;\n\tFri, 27 Oct 2017 15:09:19 +1100 (AEDT)", "from pps.filterd (m0098420.ppops.net [127.0.0.1])\n\tby mx0b-001b2d01.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id\n\tv9R492QI141858\n\tfor <linuxppc-dev@lists.ozlabs.org>; Fri, 27 Oct 2017 00:09:17 -0400", "from e35.co.us.ibm.com (e35.co.us.ibm.com [32.97.110.153])\n\tby mx0b-001b2d01.pphosted.com with ESMTP id 2dustahpfb-1\n\t(version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT)\n\tfor <linuxppc-dev@lists.ozlabs.org>; Fri, 27 Oct 2017 00:09:17 -0400", "from localhost\n\tby e35.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use\n\tOnly! Violators will be prosecuted\n\tfor <linuxppc-dev@lists.ozlabs.org> from\n\t<aneesh.kumar@linux.vnet.ibm.com>; Thu, 26 Oct 2017 22:09:16 -0600", "from b03cxnp08025.gho.boulder.ibm.com (9.17.130.17)\n\tby e35.co.us.ibm.com (192.168.1.135) with IBM ESMTP SMTP Gateway:\n\tAuthorized Use Only! Violators will be prosecuted; \n\tThu, 26 Oct 2017 22:09:13 -0600", "from b03ledav001.gho.boulder.ibm.com\n\t(b03ledav001.gho.boulder.ibm.com [9.17.130.232])\n\tby b03cxnp08025.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with\n\tESMTP id v9R49C2v65339618; Thu, 26 Oct 2017 21:09:12 -0700", "from b03ledav001.gho.boulder.ibm.com (unknown [127.0.0.1])\n\tby IMSVA (Postfix) with ESMTP id 85CC66E121;\n\tThu, 26 Oct 2017 22:09:12 -0600 (MDT)", "from skywalker.ibmmodules.com (unknown [9.85.199.61])\n\tby b03ledav001.gho.boulder.ibm.com (Postfix) with ESMTP id 0BA996E175;\n\tThu, 26 Oct 2017 22:09:09 -0600 (MDT)" ], "Authentication-Results": "ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=linux.vnet.ibm.com\n\t(client-ip=148.163.158.5; helo=mx0a-001b2d01.pphosted.com;\n\tenvelope-from=aneesh.kumar@linux.vnet.ibm.com; receiver=<UNKNOWN>)", "From": "\"Aneesh Kumar K.V\" <aneesh.kumar@linux.vnet.ibm.com>", "To": "benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au", "Subject": "[PATCH 05/16] powerpc/mm: use hash_invalidate for\n\t__kernel_map_pages()", "Date": "Fri, 27 Oct 2017 09:38:22 +0530", "X-Mailer": "git-send-email 2.13.6", "In-Reply-To": "<20171027040833.3644-1-aneesh.kumar@linux.vnet.ibm.com>", "References": "<20171027040833.3644-1-aneesh.kumar@linux.vnet.ibm.com>", "X-TM-AS-GCONF": "00", "x-cbid": "17102704-0012-0000-0000-0000153472AB", "X-IBM-SpamModules-Scores": "", "X-IBM-SpamModules-Versions": "BY=3.00007958; HX=3.00000241; KW=3.00000007;\n\tPH=3.00000004; SC=3.00000239; SDB=6.00937034; UDB=6.00472245;\n\tIPR=6.00717296; \n\tBA=6.00005660; NDR=6.00000001; ZLA=6.00000005; ZF=6.00000009;\n\tZB=6.00000000; \n\tZP=6.00000000; ZH=6.00000000; ZU=6.00000002; MB=3.00017735;\n\tXFM=3.00000015; UTC=2017-10-27 04:09:15", "X-IBM-AV-DETECTION": "SAVI=unused REMOTE=unused XFE=unused", "x-cbparentid": "17102704-0013-0000-0000-000050088735", "Message-Id": "<20171027040833.3644-6-aneesh.kumar@linux.vnet.ibm.com>", "X-Proofpoint-Virus-Version": "vendor=fsecure engine=2.50.10432:, ,\n\tdefinitions=2017-10-27_02:, , signatures=0", "X-Proofpoint-Spam-Details": "rule=outbound_notspam policy=outbound score=0\n\tpriorityscore=1501\n\tmalwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0\n\tclxscore=1015 lowpriorityscore=0 impostorscore=0 adultscore=0\n\tclassifier=spam adjust=0 reason=mlx scancount=1\n\tengine=8.0.1-1707230000\n\tdefinitions=main-1710270053", "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@lists.ozlabs.org,\n\t\"Aneesh Kumar K.V\" <aneesh.kumar@linux.vnet.ibm.com>", "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": "Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>\n---\n arch/powerpc/mm/hash_utils_64.c | 32 +++++---------------------------\n 1 file changed, 5 insertions(+), 27 deletions(-)", "diff": "diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c\nindex b197fe57547e..8635b241e2d5 100644\n--- a/arch/powerpc/mm/hash_utils_64.c\n+++ b/arch/powerpc/mm/hash_utils_64.c\n@@ -119,11 +119,6 @@ EXPORT_SYMBOL_GPL(mmu_slb_size);\n #ifdef CONFIG_PPC_64K_PAGES\n int mmu_ci_restrictions;\n #endif\n-#ifdef CONFIG_DEBUG_PAGEALLOC\n-static u8 *linear_map_hash_slots;\n-static unsigned long linear_map_hash_count;\n-static DEFINE_SPINLOCK(linear_map_hash_lock);\n-#endif /* CONFIG_DEBUG_PAGEALLOC */\n struct mmu_hash_ops mmu_hash_ops;\n EXPORT_SYMBOL(mmu_hash_ops);\n \n@@ -1744,7 +1739,7 @@ long hpte_insert_repeating(unsigned long hash, unsigned long vpn,\n }\n \n #ifdef CONFIG_DEBUG_PAGEALLOC\n-static void kernel_map_linear_page(unsigned long vaddr, unsigned long lmi)\n+static void kernel_map_linear_page(unsigned long vaddr)\n {\n \tunsigned long hash;\n \tunsigned long vsid = get_kernel_vsid(vaddr, mmu_kernel_ssize);\n@@ -1761,12 +1756,7 @@ static void kernel_map_linear_page(unsigned long vaddr, unsigned long lmi)\n \tret = hpte_insert_repeating(hash, vpn, __pa(vaddr), mode,\n \t\t\t\t HPTE_V_BOLTED,\n \t\t\t\t mmu_linear_psize, mmu_kernel_ssize);\n-\n \tBUG_ON (ret < 0);\n-\tspin_lock(&linear_map_hash_lock);\n-\tBUG_ON(linear_map_hash_slots[lmi] & 0x80);\n-\tlinear_map_hash_slots[lmi] = ret | 0x80;\n-\tspin_unlock(&linear_map_hash_lock);\n }\n \n static void kernel_unmap_linear_page(unsigned long vaddr, unsigned long lmi)\n@@ -1776,35 +1766,23 @@ static void kernel_unmap_linear_page(unsigned long vaddr, unsigned long lmi)\n \tunsigned long vpn = hpt_vpn(vaddr, vsid, mmu_kernel_ssize);\n \n \thash = hpt_hash(vpn, PAGE_SHIFT, mmu_kernel_ssize);\n-\tspin_lock(&linear_map_hash_lock);\n-\tBUG_ON(!(linear_map_hash_slots[lmi] & 0x80));\n-\thidx = linear_map_hash_slots[lmi] & 0x7f;\n-\tlinear_map_hash_slots[lmi] = 0;\n-\tspin_unlock(&linear_map_hash_lock);\n-\tif (hidx & _PTEIDX_SECONDARY)\n-\t\thash = ~hash;\n-\tslot = (hash & htab_hash_mask) * HPTES_PER_GROUP;\n-\tslot += hidx & _PTEIDX_GROUP_IX;\n-\tmmu_hash_ops.hpte_invalidate(slot, vpn, mmu_linear_psize,\n+\tmmu_hash_ops.hash_invalidate(hash, vpn, mmu_linear_psize,\n \t\t\t\t mmu_linear_psize,\n \t\t\t\t mmu_kernel_ssize, 0);\n }\n \n void __kernel_map_pages(struct page *page, int numpages, int enable)\n {\n-\tunsigned long flags, vaddr, lmi;\n+\tunsigned long flags, vaddr;\n \tint i;\n \n \tlocal_irq_save(flags);\n \tfor (i = 0; i < numpages; i++, page++) {\n \t\tvaddr = (unsigned long)page_address(page);\n-\t\tlmi = __pa(vaddr) >> PAGE_SHIFT;\n-\t\tif (lmi >= linear_map_hash_count)\n-\t\t\tcontinue;\n \t\tif (enable)\n-\t\t\tkernel_map_linear_page(vaddr, lmi);\n+\t\t\tkernel_map_linear_page(vaddr);\n \t\telse\n-\t\t\tkernel_unmap_linear_page(vaddr, lmi);\n+\t\t\tkernel_unmap_linear_page(vaddr);\n \t}\n \tlocal_irq_restore(flags);\n }\n", "prefixes": [ "05/16" ] }