CVS commit: [netbsd-5] src/sys/arch/xen/xen

[Soren Jacobsen <snj%netbsd.org@localhost>]

Module Name:    src
Committed By:   snj
Date:           Mon Sep 28 01:25:22 UTC 2009

Modified Files:
        src/sys/arch/xen/xen [netbsd-5]: xbd_xenbus.c xbdback_xenbus.c

Log Message:
Pull up following revision(s) (requested by bouyer in ticket #1026):
        sys/arch/xen/xen/xbd_xenbus.c: revision 1.43 via patch
        sys/arch/xen/xen/xbdback_xenbus.c: revision 1.25
xbdback: implement and publish "feature-flush-cache".
xbd: if feature-flush-cache is present, use it for DIOCCACHESYNC.
 If not present, make DIOCCACHESYNC return EOPNOTSUPP and warn on
 first call.
Should improve WAPBL reliability of Xen guests on a NetBSD dom0.
Unfortunably not all linux guests seems to support this feature, and using
feature-write-barrier would require a B_BARRIER flag in the buffer.


To generate a diff of this commit:
cvs rdiff -u -r1.34.2.2 -r1.34.2.3 src/sys/arch/xen/xen/xbd_xenbus.c
cvs rdiff -u -r1.20 -r1.20.4.1 src/sys/arch/xen/xen/xbdback_xenbus.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.