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mirror of https://git.FreeBSD.org/src.git synced 2024-12-24 11:29:10 +00:00
freebsd/sys/dev/hyperv
Steven Hartland 85c9dd9d89 Prevent overflow issues in timeout processing
Previously, any timeout value for which (timeout * hz) will overflow the
signed integer, will give weird results, since callout(9) routines will
convert negative values of ticks to '1'. For unsigned integer overflow we
will get sufficiently smaller timeout values than expected.

Switch from callout_reset, which requires conversion to int based ticks
to callout_reset_sbt to avoid this.

Also correct isci to correctly resolve ccb timeout.

This was based on the original work done by Eygene Ryabinkin
<rea@freebsd.org> back in 5 Aug 2011 which used a macro to help avoid
the overlow.

Differential Revision:	https://reviews.freebsd.org/D1157
Reviewed by:	mav, davide
MFC after:	1 month
Sponsored by:	Multiplay
2014-11-21 21:01:24 +00:00
..
include Import HyperV Key-Value Pair (KVP) driver and daemon code by Microsoft, 2014-09-13 02:15:31 +00:00
netvsc Remove struct arpcom. It is unused by most interface types, that allocate 2014-11-07 15:14:10 +00:00
stordisengage Return BUS_PROBE_DEFAULT instead of BUS_PROBE_VENDOR or 0 for in-tree 2014-10-24 06:27:45 +00:00
storvsc Prevent overflow issues in timeout processing 2014-11-21 21:01:24 +00:00
utilities Return BUS_PROBE_DEFAULT instead of BUS_PROBE_VENDOR or 0 for in-tree 2014-10-24 06:27:45 +00:00
vmbus More BUS_PROBE_NOWILDCARD sweeping. Some devices here (if_ath_ahb and siba) 2013-10-29 14:19:42 +00:00