CVS commit: src/sys/arch/xen/xen

["Jean-Yves Migeon" <jym%netbsd.org@localhost>]

Module Name:    src
Committed By:   jym
Date:           Sun Jul 24 23:56:34 UTC 2011

Modified Files:
        src/sys/arch/xen/xen: xbdback_xenbus.c

Log Message:
Add more comments to xbdback(4) code. These make the continuations a bit
easier to follow (and understand). Helped tracking down a regression
between save/restore xbdback(4) states.

A few minor fixes, which are merely cosmetic:
- call graph is (somewhat) more readable
- rework the xbdback_do_io routine with a switch statement, so as to
trigger a panic() in case an invalid operation passed through the sanity
checks. panic might be overkill here, but I am sure to catch errrors in
case it happens.


To generate a diff of this commit:
cvs rdiff -u -r1.40 -r1.41 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.