Module Name: src
Committed By: mlelstv
Date: Thu Aug 27 05:51:50 UTC 2015
Modified Files:
src/sys/arch/xen/xen: xbd_xenbus.c
src/sys/dev: cgd.c dksubr.c dkvar.h ld.c
Log Message:
Make dksubr use a spin-mutex again, since some drivers still call dk_done
from hardware interrupt. Instead, release mutex while calling start routine.
The buffer peek/use/get sequence which can no longer be atomic. So consume
the buffer directly and on error privately save and retry the buffer later.
The dk_drain function is used to flush such a deferred buffer together with
the buffer queue.
Adjust drivers to use dk_drain.
Fix an error path where dk_done was called while the lock was already held.
To generate a diff of this commit:
cvs rdiff -u -r1.72 -r1.73 src/sys/arch/xen/xen/xbd_xenbus.c
cvs rdiff -u -r1.103 -r1.104 src/sys/dev/cgd.c
cvs rdiff -u -r1.73 -r1.74 src/sys/dev/dksubr.c
cvs rdiff -u -r1.21 -r1.22 src/sys/dev/dkvar.h
cvs rdiff -u -r1.91 -r1.92 src/sys/dev/ld.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
