ieee1394: run high-level updates before high-level probes

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After a bus reset, let nodemgr call high-level update hooks first for nodes
which do not need to be probed.  The main benefit is for a bus with more
than one SBP-2 device:  SBP-2 reconnects will be performed before SBP-2
logins, thus have a much higher chance to succeed, and their SCSI devices
will not be blocked much longer than necessary.  This was demonstrated for
Linux 2.4 by Dave Cinege a while ago.

A better approach would be to perform time-consuming probes in parallel by a
subthread.  I actually plan to implement this for sbp2 but it may take a
while to get that done and tested.  Until then, this tweak is a huge
improvement for users with multiple SBP-2 devices.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Jody McIntyre <scjody@modernduck.com>

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Stefan Richter 2005-12-12 23:03:19 -05:00 • committed by Jody McIntyre

parent e38dc0ae24

commit 51c1d80e92

1 changed files with 17 additions and 3 deletions

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drivers/ieee1394/nodemgr.c

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