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

["Jaromir Dolecek" <jdolecek%netbsd.org@localhost>]

Module Name:    src
Committed By:   jdolecek
Date:           Sun Apr 12 20:17:36 UTC 2020

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

Log Message:
convert to bus_dma(9)

simplify and fix error handling in xbd_handler(), expect backend
to not use the grant once request is finished, and avoid leaking
bounce buffer when the request using it happens to end with error

in xbd_diskstart() only do the RING_PUSH_REQUESTS_AND_CHECK_NOTIFY()
when actually the request was pushed successfully


To generate a diff of this commit:
cvs rdiff -u -r1.104 -r1.105 src/sys/arch/xen/xen/xbd_xenbus.c

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