From owner-dev-commits-src-all@freebsd.org Sat Sep 18 19:15:27 2021 Return-Path: Delivered-To: dev-commits-src-all@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id A7AD367B5C0; Sat, 18 Sep 2021 19:15:27 +0000 (UTC) (envelope-from git@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) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4HBgWg4Mpcz4SYM; Sat, 18 Sep 2021 19:15:27 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 72B2E77A5; Sat, 18 Sep 2021 19:15:27 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.16.1/8.16.1) with ESMTP id 18IJFR8T084509; Sat, 18 Sep 2021 19:15:27 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 18IJFR7w084508; Sat, 18 Sep 2021 19:15:27 GMT (envelope-from git) Date: Sat, 18 Sep 2021 19:15:27 GMT Message-Id: <202109181915.18IJFR7w084508@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Mateusz Guzik Subject: git: 0d9e99ce3b10 - main - vfs: add the missing vnode interlock in vfs_mountroot_shuffle MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: mjg X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: 0d9e99ce3b1071c76ff5a2d9d4158341c0371c2f Auto-Submitted: auto-generated X-BeenThere: dev-commits-src-all@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Commit messages for all branches of the src repository List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 18 Sep 2021 19:15:27 -0000 The branch main has been updated by mjg: URL: https://cgit.FreeBSD.org/src/commit/?id=0d9e99ce3b1071c76ff5a2d9d4158341c0371c2f commit 0d9e99ce3b1071c76ff5a2d9d4158341c0371c2f Author: Mateusz Guzik AuthorDate: 2021-09-18 08:12:27 +0000 Commit: Mateusz Guzik CommitDate: 2021-09-18 19:13:51 +0000 vfs: add the missing vnode interlock in vfs_mountroot_shuffle Around v_mountedhere assignment. --- sys/kern/vfs_mountroot.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sys/kern/vfs_mountroot.c b/sys/kern/vfs_mountroot.c index e2a687511e11..5cf222901420 100644 --- a/sys/kern/vfs_mountroot.c +++ b/sys/kern/vfs_mountroot.c @@ -367,10 +367,12 @@ vfs_mountroot_shuffle(struct thread *td, struct mount *mpdevfs) error = vinvalbuf(vp, V_SAVE, 0, 0); if (!error) { cache_purge(vp); + VI_LOCK(vp); mporoot->mnt_vnodecovered = vp; vp->v_mountedhere = mporoot; strlcpy(mporoot->mnt_stat.f_mntonname, fspath, MNAMELEN); + VI_UNLOCK(vp); VOP_UNLOCK(vp); } else vput(vp);