d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Do not expose unlocked unconstructed nullfs vnode on mount list.

Browse Source 
Lock the native nullfs vnode lock before switching the locks.

Tested by:	pho
MFC after:	1 week
This commit is contained in:
kib 2012-03-02 09:48:46 +00:00
parent 93f2183184
commit cca832bf9d
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
sys/fs/nullfs/null_subr.c
View File

@ -172,12 +172,12 @@ static void
null_destroy_proto(struct vnode *vp, void *xp)
{
lockmgr(&vp->v_lock, LK_EXCLUSIVE, NULL);
VI_LOCK(vp);
vp->v_data = NULL;
vp->v_vnlock = &vp->v_lock;
vp->v_op = &dead_vnodeops;
VI_UNLOCK(vp);
(void) vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
vgone(vp);
vput(vp);
free(xp, M_NULLFSNODE);