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| author | Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> | 2011-11-30 12:23:43 +0000 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2011-12-05 14:56:06 +0100 |
| commit | 922453bca6a927bb527068ae8679d587cfa45dbc (patch) | |
| tree | beb8fc3e9e180558f423e5b7ce97affed1ee8ca6 /xen-mapcache.c | |
| parent | 5f8b6491f20732e0a31e64bbf75b62def579e044 (diff) | |
| download | focaccia-qemu-922453bca6a927bb527068ae8679d587cfa45dbc.tar.gz focaccia-qemu-922453bca6a927bb527068ae8679d587cfa45dbc.zip | |
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 'xen-mapcache.c')
| -rw-r--r-- | xen-mapcache.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/xen-mapcache.c b/xen-mapcache.c index 7bcb86e4f8..9fecc64e97 100644 --- a/xen-mapcache.c +++ b/xen-mapcache.c @@ -351,7 +351,7 @@ void xen_invalidate_map_cache(void) MapCacheRev *reventry; /* Flush pending AIO before destroying the mapcache */ - qemu_aio_flush(); + bdrv_drain_all(); QTAILQ_FOREACH(reventry, &mapcache->locked_entries, next) { DPRINTF("There should be no locked mappings at this time, " |