Author: kib
Date: Wed Oct 9 18:45:01 2013
New Revision: 256213
URL: http://svnweb.freebsd.org/changeset/base/256213
Log:
The device vnodes are often unlocked when bread() or bwrite() is
called. This probably should be fixed eventually, but for now it is
not needed to try to flush such vnodes from the buffer allocation
context.
Reported and tested by: pho
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Approved by: re (gjb)
Modified:
head/sys/kern/vfs_bio.c
Modified: head/sys/kern/vfs_bio.c
==============================================================================
--- head/sys/kern/vfs_bio.c Wed Oct 9 18:44:05 2013 (r256212)
+++ head/sys/kern/vfs_bio.c Wed Oct 9 18:45:01 2013 (r256213)
@@ -2076,7 +2076,8 @@ getnewbuf_bufd_help(struct vnode *vp, in
wait = MNT_NOWAIT;
mtx_lock(&nblock);
while (needsbuffer & flags) {
- if (vp != NULL && (td->td_pflags & TDP_BUFNEED) == 0) {
+ if (vp != NULL && vp->v_type != VCHR &&
+ (td->td_pflags & TDP_BUFNEED) == 0) {
mtx_unlock(&nblock);
/*
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