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Lines 629-641
vop_stdfsync(ap)
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| 629 |
struct thread *a_td; |
629 |
struct thread *a_td; |
| 630 |
} */ *ap; |
630 |
} */ *ap; |
| 631 |
{ |
631 |
{ |
| 632 |
struct vnode *vp = ap->a_vp; |
632 |
struct vnode *vp; |
| 633 |
struct buf *bp; |
633 |
struct buf *bp, *nbp; |
| 634 |
struct bufobj *bo; |
634 |
struct bufobj *bo; |
| 635 |
struct buf *nbp; |
635 |
struct mount *mp; |
| 636 |
int error = 0; |
636 |
int error, maxretry; |
| 637 |
int maxretry = 1000; /* large, arbitrarily chosen */ |
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| 638 |
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637 |
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|
638 |
error = 0; |
| 639 |
maxretry = 10000; /* large, arbitrarily chosen */ |
| 640 |
vp = ap->a_vp; |
| 641 |
mp = NULL; |
| 642 |
if (vp->v_type == VCHR) { |
| 643 |
VI_LOCK(vp); |
| 644 |
mp = vp->v_rdev->si_mountpt; |
| 645 |
VI_UNLOCK(vp); |
| 646 |
} |
| 639 |
bo = &vp->v_bufobj; |
647 |
bo = &vp->v_bufobj; |
| 640 |
BO_LOCK(bo); |
648 |
BO_LOCK(bo); |
| 641 |
loop1: |
649 |
loop1: |
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Lines 678-683
loop2:
Link Here
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| 678 |
bremfree(bp); |
686 |
bremfree(bp); |
| 679 |
bawrite(bp); |
687 |
bawrite(bp); |
| 680 |
} |
688 |
} |
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|
689 |
if (maxretry < 1000) |
| 690 |
pause("dirty", hz < 1000 ? 1 : hz / 1000); |
| 681 |
BO_LOCK(bo); |
691 |
BO_LOCK(bo); |
| 682 |
goto loop2; |
692 |
goto loop2; |
| 683 |
} |
693 |
} |
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Lines 698-705
loop2:
Link Here
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| 698 |
*/ |
708 |
*/ |
| 699 |
TAILQ_FOREACH(bp, &bo->bo_dirty.bv_hd, b_bobufs) |
709 |
TAILQ_FOREACH(bp, &bo->bo_dirty.bv_hd, b_bobufs) |
| 700 |
if ((error = bp->b_error) == 0) |
710 |
if ((error = bp->b_error) == 0) |
| 701 |
continue; |
711 |
break; |
| 702 |
if (error == 0 && --maxretry >= 0) |
712 |
if ((mp != NULL && mp->mnt_secondary_writes > 0) || |
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713 |
(error == 0 && --maxretry >= 0)) |
| 703 |
goto loop1; |
714 |
goto loop1; |
| 704 |
error = EAGAIN; |
715 |
error = EAGAIN; |
| 705 |
} |
716 |
} |