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diff --git a/sys/kern/vfs_subr.c b/sys/kern/vfs_subr.c
--- a/sys/kern/vfs_subr.c
+++ b/sys/kern/vfs_subr.c
@@ -2616,17 +2616,26 @@
v_inval_buf_range_locked(struct vnode *vp, struct bufobj *bo,
daddr_t startlbn, daddr_t endlbn)
{
+ struct bufv *bv;
struct buf *bp, *nbp;
- bool anyfreed;
+ uint8_t anyfreed;
+ bool clean;
ASSERT_VOP_LOCKED(vp, "v_inval_buf_range_locked");
ASSERT_BO_LOCKED(bo);
+ anyfreed = 1;
+ clean = true;
do {
- anyfreed = false;
- TAILQ_FOREACH_SAFE(bp, &bo->bo_clean.bv_hd, b_bobufs, nbp) {
- if (bp->b_lblkno < startlbn || bp->b_lblkno >= endlbn)
- continue;
+ bv = clean ? &bo->bo_clean : &bo->bo_dirty;
+ TAILQ_FOREACH(bp, &bv->bv_hd, b_bobufs)
+ if (bp->b_lblkno >= startlbn)
+ break;
+ if (bp == NULL)
+ continue;
+ TAILQ_FOREACH_FROM_SAFE(bp, &bv->bv_hd, b_bobufs, nbp) {
+ if (bp->b_lblkno >= endlbn)
+ break;
if (BUF_LOCK(bp,
LK_EXCLUSIVE | LK_SLEEPFAIL | LK_INTERLOCK,
BO_LOCKPTR(bo)) == ENOLCK) {
@@ -2638,39 +2647,17 @@
bp->b_flags |= B_INVAL | B_RELBUF;
bp->b_flags &= ~B_ASYNC;
brelse(bp);
- anyfreed = true;
+ anyfreed = 2;
BO_LOCK(bo);
if (nbp != NULL &&
- (((nbp->b_xflags & BX_VNCLEAN) == 0) ||
+ (((nbp->b_xflags &
+ (clean ? BX_VNCLEAN : BX_VNDIRTY)) == 0) ||
nbp->b_vp != vp ||
- (nbp->b_flags & B_DELWRI) != 0))
- return (EAGAIN);
- }
-
- TAILQ_FOREACH_SAFE(bp, &bo->bo_dirty.bv_hd, b_bobufs, nbp) {
- if (bp->b_lblkno < startlbn || bp->b_lblkno >= endlbn)
- continue;
- if (BUF_LOCK(bp,
- LK_EXCLUSIVE | LK_SLEEPFAIL | LK_INTERLOCK,
- BO_LOCKPTR(bo)) == ENOLCK) {
- BO_LOCK(bo);
- return (EAGAIN);
- }
- bremfree(bp);
- bp->b_flags |= B_INVAL | B_RELBUF;
- bp->b_flags &= ~B_ASYNC;
- brelse(bp);
- anyfreed = true;
-
- BO_LOCK(bo);
- if (nbp != NULL &&
- (((nbp->b_xflags & BX_VNDIRTY) == 0) ||
- (nbp->b_vp != vp) ||
- (nbp->b_flags & B_DELWRI) == 0))
+ (nbp->b_flags & B_DELWRI) == (clean? B_DELWRI: 0)))
return (EAGAIN);
}
- } while (anyfreed);
+ } while (clean = !clean, anyfreed-- > 0);
return (0);
}

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