Re: must-fix list for 2.6.0

From: Christoph Hellwig (hch@infradead.org)
Date: Thu May 01 2003 - 09:33:25 EST


drivers/scsi/

 - large parts of the locking are hosed or not existant
      o shost->my_devices isn't locked down at all
      o the host list ist locked but not refcounted, mess can
         happen when the spinlock is dropped
      o there are lots of members of struct Scsi_Host/scsi_device/scsi_cmnd
        with very unclear locking, many of them probably want to become
        atomic_t's or bitmaps (for the 1bit bitfields).
      o there's lots of volatile abuse in the scsi code that needs to
        be thought about.
      o there's some global variables incremented without any locks

fs/devfs/

 - there's a fundamental lookup vs devfsd race that's only fixable
   by introducing a lookup vs devfs deadlock. I can't see how this
   is fixable without getting rid of the current devfsd design.
   Mandrake seems to have a workaround for this so this is at least
   not triggered so easily, but that's not what I'd considere a fix..
-
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