CVSROOT: /cvs
Module name: src
Changes by: k...@cvs.openbsd.org 2016/10/07 13:17:50
Modified files:
sys/dev : softraid_raid5.c
Log message:
Using '4' as the max # of ccb's in a work unit doesn't work so well
when the number of chunks in your RAID5 is significantly more than
4. Each work unit needs to use at least a ccb per chunk to do the
i/o.
Set the max to the number of chunks, which all the other RAID types
do in one varient or other. Note that it's not really a max, just
the number used when allocating the entire collection of ccb's for the
volume.
Fixes doing largeish i/o's (e.g. dd bs=1m count=128) to RAID5 volumes
with many chunks.
Problem reported by Alex McWhirter.
ok jsing@
