diff options
| author | Mateusz Guzik <mjg@FreeBSD.org> | 2021-09-18 08:12:27 +0000 |
|---|---|---|
| committer | Mateusz Guzik <mjg@FreeBSD.org> | 2021-10-11 09:10:13 +0000 |
| commit | fa7ebd573910f180e31fedfbd36a984139de72a7 (patch) | |
| tree | 5058f08476dcf7391736bf675e9d45cb59e72004 | |
| parent | 32c7c1d3945f9e4b4c59a0f9bc2bdb054dd5b446 (diff) | |
vfs: add the missing vnode interlock in vfs_mountroot_shuffle
Around v_mountedhere assignment.
(cherry picked from commit 0d9e99ce3b1071c76ff5a2d9d4158341c0371c2f)
| -rw-r--r-- | sys/kern/vfs_mountroot.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/kern/vfs_mountroot.c b/sys/kern/vfs_mountroot.c index 4f80104c311c..7adf63db2dac 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); |