K 10
svn:author
V 3
pjd
K 8
svn:date
V 27
2010-12-30T09:45:26.719559Z
K 7
svn:log
V 1306
MFC r216565,r216631,r216632,r216633,r216774:

r216565:

Reduce lock scope a little.

r216631:

On error, unbusy file system and jump to the end, so we won't try to unlock
NULL *vpp.

Reviewed by:	kib

r216632:

- Move pubflag and lockflag handling from nfsrv_fhtovp() to nfs_namei() -
  this is the only place that is different from all the other nfsrv_fhtovp()
  consumers.
  This simplifies nfsrv_fhtovp() a bit and also eliminates one
  vn_lock/VOP_UNLOCK() cycle in case of NFSv3.
- Implement NFSRV_FLAG_BUSY flag for nfsrv_fhtovp() that tells it to leave
  mount point busy.

Reviewed by:	kib

r216633:

Use newly added NFSRV_FLAG_BUSY flag for nfsrv_fhtovp() to keep mount point
busy. This fixes a race where we can pass invalid mount point to VFS_VGET()
via vp->v_mount when exported file system was forcibly unmounted between
nfsrv_fhtovp() and VFS_VGET().

Reviewed by:	kib

r216774:

ZFS might not return monotonically increasing directory offset cookies,
so turn off UFS-specific hack that assumes so in ZFS case.
Before the change we can miss returning some directory entries to a
NFS client.

I believe that the hack should be moved to ufs_readdir(), but until we find
somebody who will do it, turn it off for ZFS in NFS server code.

Submitted by:	rmacklem
Discussed with:	rmacklem, mckusick

END