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Wed, 12 Aug 2020 06:34:31 +0000 (GMT) Received: from skywalker.ibmuc.com (unknown [9.85.71.109]) by b03ledav002.gho.boulder.ibm.com (Postfix) with ESMTP; Wed, 12 Aug 2020 06:34:31 +0000 (GMT) From: "Aneesh Kumar K.V" To: linux-mm@kvack.org, akpm@linux-foundation.org Subject: [PATCH 06/16] debug_vm_pgtable/THP: Mark the pte entry huge before using set_pmd_at Date: Wed, 12 Aug 2020 12:03:48 +0530 Message-Id: <20200812063358.369514-6-aneesh.kumar@linux.ibm.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200812063358.369514-1-aneesh.kumar@linux.ibm.com> References: <20200812063358.369514-1-aneesh.kumar@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.235, 18.0.687 definitions=2020-08-11_19:2020-08-11, 2020-08-11 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=999 spamscore=0 phishscore=0 impostorscore=0 suspectscore=0 lowpriorityscore=0 clxscore=1015 malwarescore=0 priorityscore=1501 bulkscore=0 mlxscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2006250000 definitions=main-2008120047 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linuxppc-dev@lists.ozlabs.org, "Aneesh Kumar K.V" , Anshuman Khandual Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" kernel expect entries to be marked huge before we use set_pmd_at(). Signed-off-by: Aneesh Kumar K.V --- mm/debug_vm_pgtable.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/mm/debug_vm_pgtable.c b/mm/debug_vm_pgtable.c index de8a62d0a931..b6aca2526e01 100644 --- a/mm/debug_vm_pgtable.c +++ b/mm/debug_vm_pgtable.c @@ -149,7 +149,7 @@ static void __init pmd_advanced_tests(struct mm_struct *mm, unsigned long pfn, unsigned long vaddr, pgprot_t prot) { - pmd_t pmd = pfn_pmd(pfn, prot); + pmd_t pmd; if (!has_transparent_hugepage()) return; @@ -158,19 +158,19 @@ static void __init pmd_advanced_tests(struct mm_struct *mm, /* Align the address wrt HPAGE_PMD_SIZE */ vaddr = (vaddr & HPAGE_PMD_MASK) + HPAGE_PMD_SIZE; - pmd = pfn_pmd(pfn, prot); + pmd = pmd_mkhuge(pfn_pmd(pfn, prot)); set_pmd_at(mm, vaddr, pmdp, pmd); pmdp_set_wrprotect(mm, vaddr, pmdp); pmd = READ_ONCE(*pmdp); WARN_ON(pmd_write(pmd)); - pmd = pfn_pmd(pfn, prot); + pmd = pmd_mkhuge(pfn_pmd(pfn, prot)); set_pmd_at(mm, vaddr, pmdp, pmd); pmdp_huge_get_and_clear(mm, vaddr, pmdp); pmd = READ_ONCE(*pmdp); WARN_ON(!pmd_none(pmd)); - pmd = pfn_pmd(pfn, prot); + pmd = pmd_mkhuge(pfn_pmd(pfn, prot)); pmd = pmd_wrprotect(pmd); pmd = pmd_mkclean(pmd); set_pmd_at(mm, vaddr, pmdp, pmd); -- 2.26.2