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| author | Mateusz Guzik <mjg@FreeBSD.org> | 2021-09-18 08:12:27 +0000 |
|---|---|---|
| committer | Mateusz Guzik <mjg@FreeBSD.org> | 2021-09-18 19:13:51 +0000 |
| commit | 0d9e99ce3b1071c76ff5a2d9d4158341c0371c2f (patch) | |
| tree | 8e7cad4b955a75d2cc0c4af2e01778929b74bb8d | |
| parent | 50b07c1f7131fd535bbe1b53a3a2e4dfcdcc2e51 (diff) | |
| download | src-0d9e99ce3b1071c76ff5a2d9d4158341c0371c2f.tar.gz src-0d9e99ce3b1071c76ff5a2d9d4158341c0371c2f.zip | |
vfs: add the missing vnode interlock in vfs_mountroot_shuffle
Around v_mountedhere assignment.
| -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 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); |