git: USB - Avoid unnecessary reprobes.
commit 9670bddac1b917ea3a748ff3769bc8728f3fc2d8
Author: Matthew Dillon <dillon@apollo.backplane.com>
Date: Sun Sep 6 14:53:51 2009 -0700
USB - Avoid unnecessary reprobes.
* Do not unconditionally setdiskinfo when a removable DA* device is
opened. It takes time for the kernel to reprobe the drive and this
seriously messes up mountroot during kernel boot or attempts to
access partitions in slices (instant open + access partition).
If the size hasn't changed, do not call setdiskinfo again.
* This is a bad hack. A better solution (detect actual device
replacement) is needed.
Summary of changes:
sys/bus/cam/scsi/scsi_da.c | 23 +++++++++++++++--------
1 files changed, 15 insertions(+), 8 deletions(-)
http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/9670bddac1b917ea3a748ff3769bc8728f3fc2d8
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