diff --git a/sys/kern/vfs_subr.c b/sys/kern/vfs_subr.c index 72be478e310d..48aea3b6c8ff 100644 --- a/sys/kern/vfs_subr.c +++ b/sys/kern/vfs_subr.c @@ -3521,17 +3521,25 @@ vdbatch_process(struct vdbatch *vd) MPASS(curthread->td_pinned > 0); MPASS(vd->index == VDBATCH_SIZE); - mtx_lock(&vnode_list_mtx); critical_enter(); - for (i = 0; i < VDBATCH_SIZE; i++) { - vp = vd->tab[i]; - TAILQ_REMOVE(&vnode_list, vp, v_vnodelist); - TAILQ_INSERT_TAIL(&vnode_list, vp, v_vnodelist); - MPASS(vp->v_dbatchcpu != NOCPU); - vp->v_dbatchcpu = NOCPU; + if (mtx_trylock(&vnode_list_mtx)) { + for (i = 0; i < VDBATCH_SIZE; i++) { + vp = vd->tab[i]; + vd->tab[i] = NULL; + TAILQ_REMOVE(&vnode_list, vp, v_vnodelist); + TAILQ_INSERT_TAIL(&vnode_list, vp, v_vnodelist); + MPASS(vp->v_dbatchcpu != NOCPU); + vp->v_dbatchcpu = NOCPU; + } + mtx_unlock(&vnode_list_mtx); + } else { + for (i = 0; i < VDBATCH_SIZE; i++) { + vp = vd->tab[i]; + vd->tab[i] = NULL; + MPASS(vp->v_dbatchcpu != NOCPU); + vp->v_dbatchcpu = NOCPU; + } } - mtx_unlock(&vnode_list_mtx); - bzero(vd->tab, sizeof(vd->tab)); vd->index = 0; critical_exit(); }