cvs commit: src/sys/kern vfs_subr.c

[Jeff Roberson]

jeff        2005-04-11 09:28:33 UTC

  FreeBSD src repository

  Modified files:
    sys/kern             vfs_subr.c 
  Log:
   - Change the VOP_LOCK UPGRADE in vput() to do a LK_NOWAIT to avoid a
     potential lock order reversal.  Also, don't unlock the vnode if this
     fails, lockmgr has already unlocked it for us.
   - Restructure vget() now that vn_lock() does all of VI_DOOMED checking
     for us and also handles the case where there is no real lock type.
   - If VI_OWEINACT is set, we need to upgrade the lock request to EXCLUSIVE
     so that we can call inactive.  It's not legal to vget a vnode that hasn't
     had INACTIVE called yet.
  
  Sponsored by:   Isilon Systems, Inc.
  
  Revision  Changes    Path
  1.613     +43 -39    src/sys/kern/vfs_subr.c