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authorStefan Hajnoczi <stefanha@linux.vnet.ibm.com>2011-11-30 12:23:43 +0000
committerKevin Wolf <kwolf@redhat.com>2011-12-05 14:56:06 +0100
commit922453bca6a927bb527068ae8679d587cfa45dbc (patch)
treebeb8fc3e9e180558f423e5b7ce97affed1ee8ca6 /block-migration.c
parent5f8b6491f20732e0a31e64bbf75b62def579e044 (diff)
downloadqemu-arm-922453bca6a927bb527068ae8679d587cfa45dbc.tar.gz
block: convert qemu_aio_flush() calls to bdrv_drain_all()
Many places in QEMU call qemu_aio_flush() to complete all pending asynchronous I/O. Most of these places actually want to drain all block requests but there is no block layer API to do so. This patch introduces the bdrv_drain_all() API to wait for requests across all BlockDriverStates to complete. As a bonus we perform checks after qemu_aio_wait() to ensure that requests really have finished. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block-migration.c')
-rw-r--r--block-migration.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/block-migration.c b/block-migration.c
index 5f10486416..423c5a07b6 100644
--- a/block-migration.c
+++ b/block-migration.c
@@ -387,7 +387,7 @@ static int mig_save_device_dirty(Monitor *mon, QEMUFile *f,
for (sector = bmds->cur_dirty; sector < bmds->total_sectors;) {
if (bmds_aio_inflight(bmds, sector)) {
- qemu_aio_flush();
+ bdrv_drain_all();
}
if (bdrv_get_dirty(bmds->bs, sector)) {