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Implement the async mount option for NFSv3. This makes NFS pretend that all

Browse source 
writes sent to the server were synchronous and therefore no commits are
needed.  This is the same as the vfs.nfs.async variable on the server but
allows each client to choose whether to work this way.

Also make the vfs.nfs.async variable do the 'right' thing for NFSv3, i.e.
pretend that the write was synchronous.
This commit is contained in:
Doug Rabson 1997-06-03 13:56:55 +00:00
parent 6362924f25
commit d1e963a50e
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=26418
4 changed files with 16 additions and 6 deletions
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7
sys/nfs/nfs_serv.c
View file

@ -34,7 +34,7 @@
* SUCH DAMAGE.
*
* @(#)nfs_serv.c 8.3 (Berkeley) 1/12/94
* $Id: nfs_serv.c,v 1.41 1997/05/10 16:12:03 dfr Exp $
* $Id: nfs_serv.c,v 1.42 1997/05/10 16:59:36 dfr Exp $
*/
/*
@ -861,7 +861,10 @@ nfsrv_write(nfsd, slp, procp, mrq)
return (0);
nfsm_build(tl, u_long *, 4 * NFSX_UNSIGNED);
*tl++ = txdr_unsigned(retlen);
if (stable == NFSV3WRITE_UNSTABLE)
/*
* If nfs_async is set, then pretend the write was FILESYNC.
*/
if (stable == NFSV3WRITE_UNSTABLE && !nfs_async)
*tl++ = txdr_unsigned(stable);
else
*tl++ = txdr_unsigned(NFSV3WRITE_FILESYNC);

4
sys/nfs/nfs_vnops.c
View file

@ -34,7 +34,7 @@
* SUCH DAMAGE.
*
* @(#)nfs_vnops.c 8.16 (Berkeley) 5/27/95
* $Id: nfs_vnops.c,v 1.51 1997/05/20 08:06:31 dfr Exp $
* $Id: nfs_vnops.c,v 1.52 1997/06/03 10:03:40 dfr Exp $
*/
@ -1249,6 +1249,8 @@ nfs_writerpc(vp, uiop, cred, iomode, must_commit)
tsiz -= len;
}
nfsmout:
if (vp->v_mount->mnt_flag & MNT_ASYNC)
committed = NFSV3WRITE_FILESYNC;
*iomode = committed;
if (error)
uiop->uio_resid = tsiz;

4
sys/nfsclient/nfs_vnops.c
View file

@ -34,7 +34,7 @@
* SUCH DAMAGE.
*
* @(#)nfs_vnops.c 8.16 (Berkeley) 5/27/95
* $Id: nfs_vnops.c,v 1.51 1997/05/20 08:06:31 dfr Exp $
* $Id: nfs_vnops.c,v 1.52 1997/06/03 10:03:40 dfr Exp $
*/
@ -1249,6 +1249,8 @@ nfs_writerpc(vp, uiop, cred, iomode, must_commit)
tsiz -= len;
}
nfsmout:
if (vp->v_mount->mnt_flag & MNT_ASYNC)
committed = NFSV3WRITE_FILESYNC;
*iomode = committed;
if (error)
uiop->uio_resid = tsiz;

7
sys/nfsserver/nfs_serv.c
View file

@ -34,7 +34,7 @@
* SUCH DAMAGE.
*
* @(#)nfs_serv.c 8.3 (Berkeley) 1/12/94
* $Id: nfs_serv.c,v 1.41 1997/05/10 16:12:03 dfr Exp $
* $Id: nfs_serv.c,v 1.42 1997/05/10 16:59:36 dfr Exp $
*/
/*
@ -861,7 +861,10 @@ nfsrv_write(nfsd, slp, procp, mrq)
return (0);
nfsm_build(tl, u_long *, 4 * NFSX_UNSIGNED);
*tl++ = txdr_unsigned(retlen);
if (stable == NFSV3WRITE_UNSTABLE)
/*
* If nfs_async is set, then pretend the write was FILESYNC.
*/
if (stable == NFSV3WRITE_UNSTABLE && !nfs_async)
*tl++ = txdr_unsigned(stable);
else
*tl++ = txdr_unsigned(NFSV3WRITE_FILESYNC);