[Qemu-block] [PULL for-3.0 1/1] block/file-posix: add bdrv_attach_aio_context callback for host dev and cdrom

[Stefan Hajnoczi]

From: Nishanth Aravamudan <address@hidden>

In ed6e2161 ("linux-aio: properly bubble up errors from initialzation"),
I only added a bdrv_attach_aio_context callback for the bdrv_file
driver. There are several other drivers that use the shared
aio_plug callback, though, and they will trip the assertion added to
aio_get_linux_aio because they did not call aio_setup_linux_aio first.
Add the appropriate callback definition to the affected driver
definitions.

Fixes: ed6e2161 ("linux-aio: properly bubble up errors from initialization")
Reported-by: Farhan Ali <address@hidden>
Signed-off-by: Nishanth Aravamudan <address@hidden>
Reviewed-by: John Snow <address@hidden>
Message-id: address@hidden
Cc: Eric Blake <address@hidden>
Cc: Kevin Wolf <address@hidden>
Cc: John Snow <address@hidden>
Cc: Max Reitz <address@hidden>
Cc: Stefan Hajnoczi <address@hidden>
Cc: Fam Zheng <address@hidden>
Cc: Paolo Bonzini <address@hidden>
Cc: address@hidden
Cc: address@hidden
Signed-off-by: Stefan Hajnoczi <address@hidden>
---
 block/file-posix.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/block/file-posix.c b/block/file-posix.c
index 60af4b3d51..ad299beb38 100644
--- a/block/file-posix.c
+++ b/block/file-posix.c
@@ -3158,6 +3158,7 @@ static BlockDriver bdrv_host_device = {
     .bdrv_refresh_limits = raw_refresh_limits,
     .bdrv_io_plug = raw_aio_plug,
     .bdrv_io_unplug = raw_aio_unplug,
+    .bdrv_attach_aio_context = raw_aio_attach_aio_context,
 
     .bdrv_co_truncate       = raw_co_truncate,
     .bdrv_getlength    = raw_getlength,
@@ -3280,6 +3281,7 @@ static BlockDriver bdrv_host_cdrom = {
     .bdrv_refresh_limits = raw_refresh_limits,
     .bdrv_io_plug = raw_aio_plug,
     .bdrv_io_unplug = raw_aio_unplug,
+    .bdrv_attach_aio_context = raw_aio_attach_aio_context,
 
     .bdrv_co_truncate    = raw_co_truncate,
     .bdrv_getlength      = raw_getlength,
@@ -3410,6 +3412,7 @@ static BlockDriver bdrv_host_cdrom = {
     .bdrv_refresh_limits = raw_refresh_limits,
     .bdrv_io_plug = raw_aio_plug,
     .bdrv_io_unplug = raw_aio_unplug,
+    .bdrv_attach_aio_context = raw_aio_attach_aio_context,
 
     .bdrv_co_truncate    = raw_co_truncate,
     .bdrv_getlength      = raw_getlength,
-- 
2.17.1