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Tue, 21 Nov 2023 19:43:51 +0000 (GMT) Received: by tuxmaker.boeblingen.de.ibm.com (Postfix, from userid 55669) id E6874E01D3; Tue, 21 Nov 2023 20:43:50 +0100 (CET) From: Alexander Gordeev To: Andrew Morton , Vishal Moola Cc: linux-mm@kvack.org, linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org, Gerald Schaefer , Heiko Carstens Subject: [PATCH v3 1/2] pgtable: fix s390 ptdesc field comments Date: Tue, 21 Nov 2023 20:43:49 +0100 Message-Id: <2eead241f3a45bed26c7911cf66bded1e35670b8.1700594815.git.agordeev@linux.ibm.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: References: MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: DVm_yGw2vUiTfBzk2EzqrfyOm1tTmDxj X-Proofpoint-ORIG-GUID: 1hAf0Kz3qyetXhHsZUYaxz_yjd8ILCud X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.987,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-11-21_10,2023-11-21_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 spamscore=0 priorityscore=1501 mlxscore=0 adultscore=0 bulkscore=0 mlxlogscore=999 phishscore=0 clxscore=1015 malwarescore=0 lowpriorityscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311060000 definitions=main-2311210153 X-Rspam-User: X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: AC42440015 X-Stat-Signature: nzin788xussac34hfhusi7xxw1xcuiz8 X-HE-Tag: 1700595836-46791 X-HE-Meta: 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 PIV5KOW3 QszVf91qIUE2/jf6X4IS7kXW58c9tEsgK1Qx+vKRjWJBGzUDL13U62X4+TqnPp/+aqULoNnvNTC3rIm5D32nThB+8nAMbjYnuKOWlvqCC3COnkZvc0bZS0N3qeq9OT+MuOiNLfsfrY4ufxQlTe6Z1wHw7PFza8ac9L+Ep44IU6K56wG4lOhuLL4J1hhZzkfnnDClF4/eSa+f4yfF6lrw0FcADCA3J53NP0p4ZubxQmpAoggExuPySDgUXSSTCTa2T6gjYRj3dKW36VF95p0SgFJ3gld1MPEjhiCiXYdqRFJ3wrGc= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Since commit d08d4e7cd6bf ("s390/mm: use full 4KB page for 2KB PTE") there is no fragmented page tracking on s390. Fix the corresponding comments. Suggested-by: Heiko Carstens Signed-off-by: Alexander Gordeev --- include/linux/mm_types.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index 957ce38768b2..fbec64036baa 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -401,11 +401,11 @@ FOLIO_MATCH(compound_head, _head_2a); * @pmd_huge_pte: Protected by ptdesc->ptl, used for THPs. * @__page_mapping: Aliases with page->mapping. Unused for page tables. * @pt_mm: Used for x86 pgds. - * @pt_frag_refcount: For fragmented page table tracking. Powerpc and s390 only. + * @pt_frag_refcount: For fragmented page table tracking. Powerpc only. * @_pt_pad_2: Padding to ensure proper alignment. * @ptl: Lock for the page table. * @__page_type: Same as page->page_type. Unused for page tables. - * @_refcount: Same as page refcount. Used for s390 page tables. + * @_refcount: Same as page refcount. * @pt_memcg_data: Memcg data. Tracked for page tables here. * * This struct overlays struct page for now. Do not modify without a good From patchwork Tue Nov 21 19:43:50 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Gordeev X-Patchwork-Id: 13463522 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1D74DC61D92 for ; Tue, 21 Nov 2023 19:44:03 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 3CCD76B0491; Tue, 21 Nov 2023 14:44:01 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 37D6F6B0493; Tue, 21 Nov 2023 14:44:01 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 1FB7D6B04B7; Tue, 21 Nov 2023 14:44:01 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0017.hostedemail.com [216.40.44.17]) by kanga.kvack.org (Postfix) with ESMTP id ED56D6B04B5 for ; 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Tue, 21 Nov 2023 19:43:51 +0000 (GMT) Received: by tuxmaker.boeblingen.de.ibm.com (Postfix, from userid 55669) id E9492E15BD; Tue, 21 Nov 2023 20:43:50 +0100 (CET) From: Alexander Gordeev To: Andrew Morton , Vishal Moola Cc: linux-mm@kvack.org, linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org, Gerald Schaefer , Heiko Carstens Subject: [PATCH v3 2/2] pgtable: rename ptdesc _refcount field to __page_refcount Date: Tue, 21 Nov 2023 20:43:50 +0100 Message-Id: <982bdc652ba79a606c3d01c905766e7e076b3315.1700594815.git.agordeev@linux.ibm.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: References: MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: Ak6U_akwJ3mCn-SzIoTVHRALtQuL-Vg2 X-Proofpoint-GUID: I7mM7rYEn9TiBvsCbfyTHufWwX4Zelle X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.987,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-11-21_10,2023-11-21_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 mlxscore=0 malwarescore=0 adultscore=0 phishscore=0 priorityscore=1501 bulkscore=0 clxscore=1015 spamscore=0 mlxlogscore=999 lowpriorityscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311060000 definitions=main-2311210153 X-Rspamd-Queue-Id: 4485080029 X-Rspam-User: X-Rspamd-Server: rspam11 X-Stat-Signature: 6r4kcminibf5eq61ho4di3g411p1z6id X-HE-Tag: 1700595838-881013 X-HE-Meta: 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 oBeu0gIo Cqbp+d/yXR8DrDsZ7FK0fNs0uJkqJFeVRl/XJX4Qnrd5CemcQWNjXuBrQ2qafYKJH6AjB7gu6FUtSZ02+4vMTGoqVAhCly08dgRJtTUlkQRdjEHp2CdOtCkVEz0/3oWBtOrO1E84EiSRG4QpUwUVdMLqftVWLlZLp3Ar/IIxUwPT1vLyU7yMKuRjZZXqBbK4e0fh3yauPGPoI1P/vaTmDGCIVLYYySOG1uh5ZaS32LH6RTQcxZM+47wmHIsHVshUsGiE7gRpF47eE/OjjtyDM6WxuiFz059Dd4jUx X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Rename ptdesc _refcount field to __page_refcount similar to the other unused page fields. Suggested-by: Vishal Moola Signed-off-by: Alexander Gordeev --- include/linux/mm_types.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index fbec64036baa..ef18d2b25378 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -405,7 +405,7 @@ FOLIO_MATCH(compound_head, _head_2a); * @_pt_pad_2: Padding to ensure proper alignment. * @ptl: Lock for the page table. * @__page_type: Same as page->page_type. Unused for page tables. - * @_refcount: Same as page refcount. + * @__page_refcount: Same as page refcount. * @pt_memcg_data: Memcg data. Tracked for page tables here. * * This struct overlays struct page for now. Do not modify without a good @@ -438,7 +438,7 @@ struct ptdesc { #endif }; unsigned int __page_type; - atomic_t _refcount; + atomic_t __page_refcount; #ifdef CONFIG_MEMCG unsigned long pt_memcg_data; #endif @@ -452,7 +452,7 @@ TABLE_MATCH(compound_head, _pt_pad_1); TABLE_MATCH(mapping, __page_mapping); TABLE_MATCH(rcu_head, pt_rcu_head); TABLE_MATCH(page_type, __page_type); -TABLE_MATCH(_refcount, _refcount); +TABLE_MATCH(_refcount, __page_refcount); #ifdef CONFIG_MEMCG TABLE_MATCH(memcg_data, pt_memcg_data); #endif