diff options
Diffstat (limited to 'sys/kern/vfs_subr.c')
| -rw-r--r-- | sys/kern/vfs_subr.c | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/sys/kern/vfs_subr.c b/sys/kern/vfs_subr.c index dc87e22f497..f639aba92f9 100644 --- a/sys/kern/vfs_subr.c +++ b/sys/kern/vfs_subr.c @@ -1,4 +1,4 @@ -/* $OpenBSD: vfs_subr.c,v 1.23 1998/10/13 16:42:01 csapuntz Exp $ */ +/* $OpenBSD: vfs_subr.c,v 1.24 1998/11/12 04:30:02 csapuntz Exp $ */ /* $NetBSD: vfs_subr.c,v 1.53 1996/04/22 01:39:13 christos Exp $ */ /* @@ -1838,11 +1838,22 @@ vinvalbuf(vp, flags, cred, p, slpflag, slptimeo) struct buf *nbp, *blist; int s, error; - if ((flags & V_SAVE) && vp->v_dirtyblkhd.lh_first != NULL) { - if ((error = VOP_FSYNC(vp, cred, MNT_WAIT, p)) != 0) - return (error); - if (vp->v_dirtyblkhd.lh_first != NULL) - panic("vinvalbuf: dirty bufs"); + if (flags & V_SAVE) { + s = splbio(); + while (vp->v_numoutput) { + vp->v_flag |= VBWAIT; + sleep((caddr_t)&vp->v_numoutput, PRIBIO + 1); + } + if (vp->v_dirtyblkhd.lh_first != NULL) { + splx(s); + if ((error = VOP_FSYNC(vp, cred, MNT_WAIT, p)) != 0) + return (error); + s = splbio(); + if (vp->v_numoutput > 0 || + vp->v_dirtyblkhd.lh_first != NULL) + panic("vinvalbuf: dirty bufs"); + } + splx(s); } for (;;) { if ((blist = vp->v_cleanblkhd.lh_first) && |