diff options
Diffstat (limited to 'sys/kern/vfs_syscalls.c')
| -rw-r--r-- | sys/kern/vfs_syscalls.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/kern/vfs_syscalls.c b/sys/kern/vfs_syscalls.c index 7cf4663..59aacb5 100644 --- a/sys/kern/vfs_syscalls.c +++ b/sys/kern/vfs_syscalls.c @@ -366,6 +366,7 @@ checkdirs(olddp) return; if (VFS_ROOT(olddp->v_mountedhere, &newdp)) panic("mount: lost mount"); + lockmgr(&allproc_lock, LK_SHARED, NULL, CURPROC); LIST_FOREACH(p, &allproc, p_list) { fdp = p->p_fd; if (fdp->fd_cdir == olddp) { @@ -379,6 +380,7 @@ checkdirs(olddp) fdp->fd_rdir = newdp; } } + lockmgr(&allproc_lock, LK_RELEASE, NULL, CURPROC); if (rootvnode == olddp) { vrele(rootvnode); VREF(newdp); |
