block: Convert bdrv_get_info() to co_wrapper_mixed
bdrv_get_info() is categorized as an I/O function, and it currently
doesn't run in a coroutine. We should let it take a graph rdlock since
it traverses the block nodes graph, which however is only possible in a
coroutine.
Therefore turn it into a co_wrapper to move the actual function into a
coroutine where the lock can be taken.
Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20230113204212.359076-11-kwolf@redhat.com>
Reviewed-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
diff --git a/block/iscsi.c b/block/iscsi.c
index 359b532..b3e10f4 100644
--- a/block/iscsi.c
+++ b/block/iscsi.c
@@ -2171,7 +2171,8 @@
return 0;
}
-static int iscsi_get_info(BlockDriverState *bs, BlockDriverInfo *bdi)
+static int coroutine_fn
+iscsi_co_get_info(BlockDriverState *bs, BlockDriverInfo *bdi)
{
IscsiLun *iscsilun = bs->opaque;
bdi->cluster_size = iscsilun->cluster_size;
@@ -2435,7 +2436,7 @@
.bdrv_co_invalidate_cache = iscsi_co_invalidate_cache,
.bdrv_co_getlength = iscsi_co_getlength,
- .bdrv_get_info = iscsi_get_info,
+ .bdrv_co_get_info = iscsi_co_get_info,
.bdrv_co_truncate = iscsi_co_truncate,
.bdrv_refresh_limits = iscsi_refresh_limits,
@@ -2474,7 +2475,7 @@
.bdrv_co_invalidate_cache = iscsi_co_invalidate_cache,
.bdrv_co_getlength = iscsi_co_getlength,
- .bdrv_get_info = iscsi_get_info,
+ .bdrv_co_get_info = iscsi_co_get_info,
.bdrv_co_truncate = iscsi_co_truncate,
.bdrv_refresh_limits = iscsi_refresh_limits,
