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From: Pawel Jakub Dawidek <pjd@FreeBSD.org>
Date: Mon, 4 Jun 2007 11:31:46 +0000 (UTC)
To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org
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Cc: 
Subject: cvs commit: src/sys/compat/opensolaris/kern opensolaris_vfs.c
 src/sys/compat/opensolaris/sys
 vfs.h src/sys/contrib/opensolaris/uts/common/fs/zfs zfs_ctldir.c
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pjd         2007-06-04 11:31:46 UTC

  FreeBSD src repository

  Modified files:
    sys/compat/opensolaris/kern opensolaris_vfs.c 
    sys/compat/opensolaris/sys vfs.h 
    sys/contrib/opensolaris/uts/common/fs/zfs zfs_ctldir.c 
  Log:
  Reimplement traverse() helper function:
  1. Pass locking flags to VFS_ROOT().
  2. Check v_mountedhere while the vnode is locked.
  3. Always return locked vnode on success.
  
  Change 1 fixes problem reported by Stephen M. Rumble - after
  zfs_vfsops.c,1.9 change, zfs_root() no longer locks the vnode
  unconditionally and traverse() didn't pass right lock type to
  VFS_ROOT(). The result was that kernel paniced when .zfs/ directory
  was accessed via NFS.
  
  Revision  Changes    Path
  1.6       +14 -10    src/sys/compat/opensolaris/kern/opensolaris_vfs.c
  1.2       +2 -2      src/sys/compat/opensolaris/sys/vfs.h
  1.5       +9 -10     src/sys/contrib/opensolaris/uts/common/fs/zfs/zfs_ctldir.c