From owner-cvs-all  Mon Nov  5 10:48:59 2001
Delivered-To: cvs-all@freebsd.org
Received: from freefall.freebsd.org (freefall.FreeBSD.org [216.136.204.21])
	by hub.freebsd.org (Postfix) with ESMTP
	id E486137B416; Mon,  5 Nov 2001 10:48:54 -0800 (PST)
Received: (from dillon@localhost)
	by freefall.freebsd.org (8.11.4/8.11.4) id fA5ImsJ76554;
	Mon, 5 Nov 2001 10:48:54 -0800 (PST)
	(envelope-from dillon)
Message-Id: <200111051848.fA5ImsJ76554@freefall.freebsd.org>
From: Matt Dillon <dillon@FreeBSD.org>
Date: Mon, 5 Nov 2001 10:48:54 -0800 (PST)
To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject: cvs commit: src/sys/dev/md md.c src/sys/kern vfs_bio.c
         vfs_cluster.c src/sys/nfsclient nfs_bio.c src/sys/sys buf.h
         vnode.h src/sys/ufs/ufs ufs_readwrite.c
X-FreeBSD-CVS-Branch: HEAD
Sender: owner-cvs-all@FreeBSD.ORG
Precedence: bulk
List-ID: <cvs-all.FreeBSD.ORG>
List-Archive: <http://docs.freebsd.org/mail/> (Web Archive)
List-Help: <mailto:majordomo@FreeBSD.ORG?subject=help> (List Instructions)
List-Subscribe: <mailto:majordomo@FreeBSD.ORG?subject=subscribe%20cvs-all>
List-Unsubscribe: <mailto:majordomo@FreeBSD.ORG?subject=unsubscribe%20cvs-all>
X-Loop: FreeBSD.ORG

dillon      2001/11/05 10:48:54 PST

  Modified files:
    sys/dev/md           md.c 
    sys/kern             vfs_bio.c vfs_cluster.c 
    sys/nfsclient        nfs_bio.c 
    sys/sys              buf.h vnode.h 
    sys/ufs/ufs          ufs_readwrite.c 
  Log:
  Implement IO_NOWDRAIN and B_NOWDRAIN - prevents the buffer cache from blocking
  in wdrain during a write.  This flag needs to be used in devices whos
  strategy routines turn-around and issue another high level I/O, such as
  when MD turns around and issues a VOP_WRITE to vnode backing store, in order
  to avoid deadlocking the dirty buffer draining code.
  
  Remove a vprintf() warning from MD when the backing vnode is found to be
  in-use.  The syncer of buf_daemon could be flushing the backing vnode at
  the time of an MD operation so the warning is not correct.
  
  MFC after:	1 week
  
  Revision  Changes    Path
  1.48      +8 -5      src/sys/dev/md/md.c
  1.292     +9 -4      src/sys/kern/vfs_bio.c
  1.115     +1 -1      src/sys/kern/vfs_cluster.c
  1.103     +7 -1      src/sys/nfsclient/nfs_bio.c
  1.122     +7 -2      src/sys/sys/buf.h
  1.163     +1 -0      src/sys/sys/vnode.h
  1.83      +3 -1      src/sys/ufs/ufs/ufs_readwrite.c

To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe cvs-all" in the body of the message