commit 2b148f392b2bfeba76d3e6d9607c3bd072350e8c
author Paolo Bonzini <pbonzini@redhat.com> Thu Mar 01 17:36:18 2018 +0100
committer Kevin Wolf <kwolf@redhat.com> Fri Mar 09 15:17:47 2018 +0100
tree a28af16d3aef4b004a257488e7503ca31f6bc51c
parent 9fb4dfc570ce3b013830321b8b91ae2ea991d768

block: convert bdrv_invalidate_cache callback to coroutine_fn

QED's bdrv_invalidate_cache implementation would like to reuse functions
that acquire/release the metadata locks.  Call it from coroutine context
to simplify the logic.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1516279431-30424-6-git-send-email-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

block/rbd.c

diff --git a/block/rbd.c b/block/rbd.c
index c7dd32e..c1275c1 100644
--- a/block/rbd.c
+++ b/block/rbd.c
@@ -1093,8 +1093,8 @@
 #endif
 
 #ifdef LIBRBD_SUPPORTS_INVALIDATE
-static void qemu_rbd_invalidate_cache(BlockDriverState *bs,
-                                      Error **errp)
+static void coroutine_fn qemu_rbd_co_invalidate_cache(BlockDriverState *bs,
+                                                      Error **errp)
 {
     BDRVRBDState *s = bs->opaque;
     int r = rbd_invalidate_cache(s->image);
@@ -1160,7 +1160,7 @@
     .bdrv_snapshot_list     = qemu_rbd_snap_list,
     .bdrv_snapshot_goto     = qemu_rbd_snap_rollback,
 #ifdef LIBRBD_SUPPORTS_INVALIDATE
-    .bdrv_invalidate_cache  = qemu_rbd_invalidate_cache,
+    .bdrv_co_invalidate_cache = qemu_rbd_co_invalidate_cache,
 #endif
 };