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authorbeck <beck@openbsd.org>2008-07-23 16:24:42 +0000
committerbeck <beck@openbsd.org>2008-07-23 16:24:42 +0000
commitc77a6aac71fe7811e361a79ab6dc41841b9f5c43 (patch)
treec7640aeabb4d2d639a225dc03aba5e96cd191e51 /sys/dev/vnd.c
parentPrevent warning about insecure hostnames where no /etc/hostname.* (diff)
downloadwireguard-openbsd-c77a6aac71fe7811e361a79ab6dc41841b9f5c43.tar.xz
wireguard-openbsd-c77a6aac71fe7811e361a79ab6dc41841b9f5c43.zip
Correct cases of mishandling of pending reads and writes to prevent
them going negative - this consists of identifying a number of cases of IO not going through the buffer cache and marking those buffers with B_RAW - as well as fixing nfs_bio to show pending writes and reads through the buffer cache via NFS still has a problem with mishandling the counters I believe in the async/sync fallback case where counters stay positive which will be addressed seperately. ok tedu@ deraadt@
Diffstat (limited to 'sys/dev/vnd.c')
-rw-r--r--sys/dev/vnd.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/sys/dev/vnd.c b/sys/dev/vnd.c
index 85be177912d..602f56f2006 100644
--- a/sys/dev/vnd.c
+++ b/sys/dev/vnd.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: vnd.c,v 1.87 2008/07/20 01:53:43 krw Exp $ */
+/* $OpenBSD: vnd.c,v 1.88 2008/07/23 16:24:43 beck Exp $ */
/* $NetBSD: vnd.c,v 1.26 1996/03/30 23:06:11 christos Exp $ */
/*
@@ -652,6 +652,8 @@ vndiodone(struct buf *bp)
vbp->vb_buf.b_error);
pbp->b_flags |= B_ERROR;
+ /* XXX does this matter here? */
+ (&vbp->vb_buf)->b_flags |= B_RAW;
pbp->b_error = biowait(&vbp->vb_buf);
}
pbp->b_resid -= vbp->vb_buf.b_bcount;