cvs commit: src/sys/ufs/ufs ufs_vnops.c

[Kirk McKusick]

mckusick    2004/02/22 22:40:17 PST

  FreeBSD src repository

  Modified files:
    sys/ufs/ufs          ufs_vnops.c 
  Log:
  Change UFS from using vop_stdlock to using its own ufs_lock.
  In ufs_lock, check for attempts to acquire shared locks on
  snapshot files and change them to be exclusive locks. This
  change eliminates deadlocks and machine lockups reported in
  -current since most read requests started using shared lock
  requests.
  
  Submitted by:   Jun Kuriyama <kuriyama at imgsrc.co.jp>
  
  Revision  Changes    Path
  1.235     +28 -0     src/sys/ufs/ufs/ufs_vnops.c