cvs commit: src/sys/fs/msdosfs msdosfs_vfsops.c

[Tim J. Robbins]

tjr         2003/06/28 20:05:59 PDT

  FreeBSD src repository

  Modified files:
    sys/fs/msdosfs       msdosfs_vfsops.c 
  Log:
  XXX Copy workaround from UFS: open device for write access even if
  the user requests a read-only mount. This is necessary because we
  don't do the VOP_OPEN again if they upgrade a read-only mount to
  read-write.
  
  Fixes lockup when creating files on msdosfs mounts that have been
  mounted read-only then upgraded to read-write. The exact cause of
  the lockup is not known, but it is likely to be the kernel getting
  stuck in an infinite loop trying to write dirty buffers to a device
  without write permission.
  
  Reported/tested by andreas, discussed with phk.
  
  Revision  Changes    Path
  1.103     +19 -0     src/sys/fs/msdosfs/msdosfs_vfsops.c