block: add missing coroutine_fn annotations

Callers of coroutine_fn must be coroutine_fn themselves, or the call
must be within "if (qemu_in_coroutine())".  Apply coroutine_fn to
functions where this holds.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20220922084924.201610-3-pbonzini@redhat.com>
[kwolf: Fixed up coding style]
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

1 files changed, 4 insertions, 3 deletions

diff --git a/block.c b/block.c
index bc85f46eed..9b0fae5c1e 100644
--- a/block.c
+++ b/block.c
@@ -631,9 +631,10 @@ static int64_t create_file_fallback_truncate(BlockBackend *blk,
  * Helper function for bdrv_create_file_fallback(): Zero the first
  * sector to remove any potentially pre-existing image header.
  */
-static int create_file_fallback_zero_first_sector(BlockBackend *blk,
-                                                  int64_t current_size,
-                                                  Error **errp)
+static int coroutine_fn
+create_file_fallback_zero_first_sector(BlockBackend *blk,
+                                       int64_t current_size,
+                                       Error **errp)
 {
     int64_t bytes_to_clear;
     int ret;