53 Commits

Author	SHA1	Message	Date
Kevin Wolf	7887f6201f	Allow nested qemu_bh_poll() after BH deletion ... Without this, qemu segfaults when a BH handler first deletes its BH and then calls another function which involves a nested qemu_bh_poll() call. This can be reproduced by generating an I/O error (e.g. with blkdebug) on an IDE device and using rerror/werror=stop to stop the VM. When continuing the VM, qemu segfaults. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>	2011-06-15 15:43:20 +02:00
Kevin Wolf	9a1e948129	Introduce contexts for asynchronous callbacks ... Add the possibility to use AIO and BHs without allowing foreign callbacks to be run. Basically, you put your own AIOs and BHs in a separate context. For details see the comments in the source. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>	2009-10-27 12:28:59 -05:00
Kevin Wolf	4f999d05f5	Split out bottom halves ... Instead of putting more and more stuff into vl.c, let's have the generic functions that deal with asynchronous callbacks in their own file. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>	2009-10-27 12:28:59 -05:00