From owner-svn-src-all@freebsd.org Sun Jan 6 00:45:42 2019 Return-Path: Delivered-To: svn-src-all@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 9C7DB142B3B6; Sun, 6 Jan 2019 00:45:42 +0000 (UTC) (envelope-from kib@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 423D276B14; Sun, 6 Jan 2019 00:45:42 +0000 (UTC) (envelope-from kib@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 34416206A4; Sun, 6 Jan 2019 00:45:42 +0000 (UTC) (envelope-from kib@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id x060jgRL034964; Sun, 6 Jan 2019 00:45:42 GMT (envelope-from kib@FreeBSD.org) Received: (from kib@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id x060jfEZ034962; Sun, 6 Jan 2019 00:45:41 GMT (envelope-from kib@FreeBSD.org) Message-Id: <201901060045.x060jfEZ034962@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: kib set sender to kib@FreeBSD.org using -f From: Konstantin Belousov Date: Sun, 6 Jan 2019 00:45:41 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-12@freebsd.org Subject: svn commit: r342800 - in stable/12/sys/compat/linuxkpi/common: include/linux src X-SVN-Group: stable-12 X-SVN-Commit-Author: kib X-SVN-Commit-Paths: in stable/12/sys/compat/linuxkpi/common: include/linux src X-SVN-Commit-Revision: 342800 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 423D276B14 X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-2.92 / 15.00]; local_wl_from(0.00)[FreeBSD.org]; NEURAL_HAM_MEDIUM(-1.00)[-0.998,0]; NEURAL_HAM_LONG(-1.00)[-0.999,0]; NEURAL_HAM_SHORT(-0.92)[-0.919,0] X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 06 Jan 2019 00:45:42 -0000 Author: kib Date: Sun Jan 6 00:45:41 2019 New Revision: 342800 URL: https://svnweb.freebsd.org/changeset/base/342800 Log: MFC r342627: Implement zap_vma_ptes() for managed device objects. Modified: stable/12/sys/compat/linuxkpi/common/include/linux/mm.h stable/12/sys/compat/linuxkpi/common/src/linux_compat.c Directory Properties: stable/12/ (props changed) Modified: stable/12/sys/compat/linuxkpi/common/include/linux/mm.h ============================================================================== --- stable/12/sys/compat/linuxkpi/common/include/linux/mm.h Sun Jan 6 00:44:32 2019 (r342799) +++ stable/12/sys/compat/linuxkpi/common/include/linux/mm.h Sun Jan 6 00:45:41 2019 (r342800) @@ -180,12 +180,8 @@ apply_to_page_range(struct mm_struct *mm, unsigned lon return (-ENOTSUP); } -static inline int -zap_vma_ptes(struct vm_area_struct *vma, unsigned long address, - unsigned long size) -{ - return (-ENOTSUP); -} +int zap_vma_ptes(struct vm_area_struct *vma, unsigned long address, + unsigned long size); static inline int remap_pfn_range(struct vm_area_struct *vma, unsigned long addr, Modified: stable/12/sys/compat/linuxkpi/common/src/linux_compat.c ============================================================================== --- stable/12/sys/compat/linuxkpi/common/src/linux_compat.c Sun Jan 6 00:44:32 2019 (r342799) +++ stable/12/sys/compat/linuxkpi/common/src/linux_compat.c Sun Jan 6 00:45:41 2019 (r342800) @@ -672,6 +672,25 @@ static struct cdev_pager_ops linux_cdev_pager_ops[2] = }, }; +int +zap_vma_ptes(struct vm_area_struct *vma, unsigned long address, + unsigned long size) +{ + vm_object_t obj; + vm_page_t m; + + obj = vma->vm_obj; + if (obj == NULL || (obj->flags & OBJ_UNMANAGED) != 0) + return (-ENOTSUP); + VM_OBJECT_RLOCK(obj); + for (m = vm_page_find_least(obj, OFF_TO_IDX(address)); + m != NULL && m->pindex < OFF_TO_IDX(address + size); + m = TAILQ_NEXT(m, listq)) + pmap_remove_all(m); + VM_OBJECT_RUNLOCK(obj); + return (0); +} + #define OPW(fp,td,code) ({ \ struct file *__fpop; \ __typeof(code) __retval; \