qemu-e2k/include
Paul Durrant 345f42b4be xen-bus / xen-block: add support for event channel polling
This patch introduces a poll callback for event channel fd-s and uses
this to invoke the channel callback function.

To properly support polling, it is necessary for the event channel callback
function to return a boolean saying whether it has done any useful work or
not. Thus xen_block_dataplane_event() is modified to directly invoke
xen_block_handle_requests() and the latter only returns true if it actually
processes any requests. This also means that the call to qemu_bh_schedule()
is moved into xen_block_complete_aio(), which is more intuitive since the
only reason for doing a deferred poll of the shared ring should be because
there were previously insufficient resources to fully complete a previous
poll.

Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Reviewed-by: Anthony PERARD <anthony.perard@citrix.com>
Message-Id: <20190408151617.13025-4-paul.durrant@citrix.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
2019-06-24 10:42:29 +01:00
..
authz Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
block block: Add bdrv_child_refresh_perms() 2019-06-18 16:41:10 +02:00
chardev Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
crypto Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
disas Clean up a few header guard symbols 2019-06-12 13:20:20 +02:00
exec Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
fpu Supply missing header guards 2019-06-12 13:20:21 +02:00
hw xen-bus / xen-block: add support for event channel polling 2019-06-24 10:42:29 +01:00
io Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
libdecnumber
migration vmstate: Add support for kernel integer types 2019-06-21 13:23:47 +02:00
monitor monitor: Replace monitor_init() with monitor_init_{hmp, qmp}() 2019-06-18 08:14:17 +02:00
net Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
qapi
qemu Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
qom Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
scsi Normalize header guard symbol definition. 2019-05-13 08:58:55 +02:00
standard-headers linux headers: update against Linux 5.2-rc1 2019-05-21 16:58:56 +02:00
sysemu target/i386: kvm: Add support for save and restore nested state 2019-06-21 13:23:47 +02:00
ui Supply missing header guards 2019-06-12 13:20:21 +02:00
elf.h linux-user: elf: ELF_HWCAP for s390x 2019-06-07 14:53:26 +02:00
glib-compat.h
qemu-common.h Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
qemu-io.h Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
trace-tcg.h