cvs commit: src/sys/kern vfs_subr.c src/sys/sys vnode.h

[Konstantin Belousov]

kib         2008-08-28 09:08:15 UTC

  FreeBSD src repository

  Modified files:
    sys/kern             vfs_subr.c 
    sys/sys              vnode.h 
  Log:
  SVN rev 182364 on 2008-08-28 09:08:15Z by kib
  
  Introduce the VV_FORCEINSMQ vnode flag. It instructs the insmnque() function
  to ignore the unmounting and forces insertion of the vnode into the mount
  vnode list.
  
  Change insmntque() to fail when forced unmount is in progress and
  VV_FORCEINSMQ is not specified.
  
  Add an assertion to the insmntque(), requiring the vnode to be
  exclusively locked for mp-safe filesystems.
  
  Use the VV_FORCEINSMQ for the creation of the syncvnode.
  
  Tested by:      pho
  Reviewed by:    tegge
  MFC after:      1 month
  
  Revision  Changes    Path
  1.738     +20 -5     src/sys/kern/vfs_subr.c
  1.338     +1 -0      src/sys/sys/vnode.h