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vfs: silence a bogus LOR in freevnode

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Reported by:	imp
This commit is contained in:
Mateusz Guzik 2022-09-12 23:40:22 +00:00
parent 1251cf8a30
commit a3ab1102e3
1 changed files with 6 additions and 1 deletions
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7
sys/kern/vfs_subr.c
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@ -1918,7 +1918,12 @@ freevnode(struct vnode *vp)
mac_vnode_destroy(vp);
#endif
if (vp->v_pollinfo != NULL) {
vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
/*
* Use LK_NOWAIT to shut up witness about the lock. We may get
* here while having another vnode locked when trying to
* satisfy a lookup and needing to recycle.
*/
VOP_LOCK(vp, LK_EXCLUSIVE | LK_NOWAIT);
destroy_vpollinfo(vp->v_pollinfo);
VOP_UNLOCK(vp);
vp->v_pollinfo = NULL;