Hi,

Chris finally got me back in gear with the write barrier patch (for 2.4,
2.5 had a few missing pieces). The following changesets exists:

ChangeSet@1.295, 2002-02-13 13:22:40+01:00, axboe@burns.home.kernel.dk
  Misc small changes and fixes to properly support barrier writes for
  journalled file systems. The support was basically already there
  with the bio merge, since it had not been used at all there were a
  few loose ends though.

  http://bitmover.com:8888//tmp/v2_logging/athlon.transmeta.com/torvalds-20020205173056-16047-c1d11a41ed024864/cset@1.133.114.2?nav=index.html|ChangeSet@-1h


ChangeSet@1.296, 2002-02-13 13:23:34+01:00, axboe@burns.home.kernel.dk
  IDE barrier write support through write cache flushing.

  http://bitmover.com:8888//tmp/v2_logging/athlon.transmeta.com/torvalds-20020205173056-16047-c1d11a41ed024864/cset@1.133.114.3?nav=index.html|ChangeSet@-1h


ChangeSet@1.297, 2002-02-13 13:42:39+01:00, axboe@burns.home.kernel.dk
  Add support for SCSI drivers to indicate support for ordered tags

  http://bitmover.com:8888//tmp/v2_logging/athlon.transmeta.com/torvalds-20020205173056-16047-c1d11a41ed024864/cset@1.133.114.4?nav=index.html|ChangeSet@-1h


ChangeSet@1.298, 2002-02-13 13:43:04+01:00, axboe@burns.home.kernel.dk
  Add ordered tag support to the aic7xxx scsi driver

  http://bitmover.com:8888//tmp/v2_logging/athlon.transmeta.com/torvalds-20020205173056-16047-c1d11a41ed024864/cset@1.133.114.5?nav=index.html|ChangeSet@-1h


ChangeSet@1.299, 2002-02-13 13:44:18+01:00, axboe@burns.home.kernel.dk
  reiserfs barrier write support

  http://bitmover.com:8888//tmp/v2_logging/athlon.transmeta.com/torvalds-20020205173056-16047-c1d11a41ed024864/cset@1.133.114.6?nav=index.html|ChangeSet@-1h

Patches attached, comments welcome.

-- 
Jens Axboe