Date: Sat, 18 Sep 2021 19:15:27 GMT From: Mateusz Guzik <mjg@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: 0d9e99ce3b10 - main - vfs: add the missing vnode interlock in vfs_mountroot_shuffle Message-ID: <202109181915.18IJFR7w084508@gitrepo.freebsd.org>
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The branch main has been updated by mjg: URL: https://cgit.FreeBSD.org/src/commit/?id=0d9e99ce3b1071c76ff5a2d9d4158341c0371c2f commit 0d9e99ce3b1071c76ff5a2d9d4158341c0371c2f Author: Mateusz Guzik <mjg@FreeBSD.org> AuthorDate: 2021-09-18 08:12:27 +0000 Commit: Mateusz Guzik <mjg@FreeBSD.org> 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);
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