Differential D12126 Diff 32454 head/sys/kern/vfs_subr.c

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head/sys/kern/vfs_subr.c

Show First 20 Lines • Show All 2,855 Lines • ▼ Show 20 Lines	_vhold(struct vnode *vp, bool locked)
VNASSERT(vp->v_holdcnt == 0, vp,		VNASSERT(vp->v_holdcnt == 0, vp,
("%s: wrong hold count", __func__));		("%s: wrong hold count", __func__));
VNASSERT(vp->v_op != NULL, vp,		VNASSERT(vp->v_op != NULL, vp,
("%s: vnode already reclaimed.", __func__));		("%s: vnode already reclaimed.", __func__));
/*		/*
* Remove a vnode from the free list, mark it as in use,		* Remove a vnode from the free list, mark it as in use,
* and put it on the active list.		* and put it on the active list.
*/		*/
		VNASSERT(vp->v_mount != NULL, vp,
		("_vhold: vnode not on per mount vnode list"));
mp = vp->v_mount;		mp = vp->v_mount;
mtx_lock(&mp->mnt_listmtx);		mtx_lock(&mp->mnt_listmtx);
if ((vp->v_mflag & VMP_TMPMNTFREELIST) != 0) {		if ((vp->v_mflag & VMP_TMPMNTFREELIST) != 0) {
TAILQ_REMOVE(&mp->mnt_tmpfreevnodelist, vp, v_actfreelist);		TAILQ_REMOVE(&mp->mnt_tmpfreevnodelist, vp, v_actfreelist);
mp->mnt_tmpfreevnodelistsize--;		mp->mnt_tmpfreevnodelistsize--;
vp->v_mflag &= ~VMP_TMPMNTFREELIST;		vp->v_mflag &= ~VMP_TMPMNTFREELIST;
} else {		} else {
mtx_lock(&vnode_free_list_mtx);		mtx_lock(&vnode_free_list_mtx);
▲ Show 20 Lines • Show All 58 Lines • ▼ Show 20 Lines	if ((vp->v_iflag & VI_DOOMED) == 0) {
VNASSERT((vp->v_iflag & VI_FREE) == 0, vp,		VNASSERT((vp->v_iflag & VI_FREE) == 0, vp,
("vnode already free"));		("vnode already free"));
VNASSERT(vp->v_holdcnt == 0, vp,		VNASSERT(vp->v_holdcnt == 0, vp,
("vdropl: freeing when we shouldn't"));		("vdropl: freeing when we shouldn't"));
active = vp->v_iflag & VI_ACTIVE;		active = vp->v_iflag & VI_ACTIVE;
if ((vp->v_iflag & VI_OWEINACT) == 0) {		if ((vp->v_iflag & VI_OWEINACT) == 0) {
vp->v_iflag &= ~VI_ACTIVE;		vp->v_iflag &= ~VI_ACTIVE;
mp = vp->v_mount;		mp = vp->v_mount;
		if (mp != NULL) {
mtx_lock(&mp->mnt_listmtx);		mtx_lock(&mp->mnt_listmtx);
if (active) {		if (active) {
TAILQ_REMOVE(&mp->mnt_activevnodelist, vp,		TAILQ_REMOVE(&mp->mnt_activevnodelist,
v_actfreelist);		vp, v_actfreelist);
mp->mnt_activevnodelistsize--;		mp->mnt_activevnodelistsize--;
}		}
TAILQ_INSERT_TAIL(&mp->mnt_tmpfreevnodelist, vp,		TAILQ_INSERT_TAIL(&mp->mnt_tmpfreevnodelist,
v_actfreelist);		vp, v_actfreelist);
mp->mnt_tmpfreevnodelistsize++;		mp->mnt_tmpfreevnodelistsize++;
vp->v_iflag \|= VI_FREE;		vp->v_iflag \|= VI_FREE;
vp->v_mflag \|= VMP_TMPMNTFREELIST;		vp->v_mflag \|= VMP_TMPMNTFREELIST;
VI_UNLOCK(vp);		VI_UNLOCK(vp);
if (mp->mnt_tmpfreevnodelistsize >= mnt_free_list_batch)		if (mp->mnt_tmpfreevnodelistsize >=
		mnt_free_list_batch)
vnlru_return_batch_locked(mp);		vnlru_return_batch_locked(mp);
mtx_unlock(&mp->mnt_listmtx);		mtx_unlock(&mp->mnt_listmtx);
		} else {
		VNASSERT(active == 0, vp,
		("vdropl: active vnode not on per mount "
		"vnode list"));
		mtx_lock(&vnode_free_list_mtx);
		TAILQ_INSERT_TAIL(&vnode_free_list, vp,
		v_actfreelist);
		freevnodes++;
		vp->v_iflag \|= VI_FREE;
		VI_UNLOCK(vp);
		mtx_unlock(&vnode_free_list_mtx);
		}
} else {		} else {
VI_UNLOCK(vp);		VI_UNLOCK(vp);
counter_u64_add(free_owe_inact, 1);		counter_u64_add(free_owe_inact, 1);
}		}
return;		return;
}		}
/*		/*
* The vnode has been marked for destruction, so free it.		* The vnode has been marked for destruction, so free it.
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