block: Classify bdrv_get_flags() as I/O function

This function is safe to call in an I/O context, and qcow2_do_open()
does so (invoked in an I/O context by qcow2_co_invalidate_cache()).

Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220427114057.36651-2-hreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

3 files changed, 2 insertions, 2 deletions

diff --git a/block.c b/block.c
index 8cd16e7..2c00ddd 100644
--- a/block.c
+++ b/block.c
@@ -6298,7 +6298,7 @@ const char *bdrv_get_device_or_node_name(const BlockDriverState *bs)
 
 int bdrv_get_flags(BlockDriverState *bs)
 {
-    GLOBAL_STATE_CODE();
+    IO_CODE();
     return bs->open_flags;
 }
 
diff --git a/include/block/block-global-state.h b/include/block/block-global-state.h
index 25bb69b..21265e3 100644
--- a/include/block/block-global-state.h
+++ b/include/block/block-global-state.h
@@ -172,7 +172,6 @@ void bdrv_next_cleanup(BdrvNextIterator *it);
 BlockDriverState *bdrv_next_monitor_owned(BlockDriverState *bs);
 void bdrv_iterate_format(void (*it)(void *opaque, const char *name),
                          void *opaque, bool read_only);
-int bdrv_get_flags(BlockDriverState *bs);
 char *bdrv_get_full_backing_filename(BlockDriverState *bs, Error **errp);
 char *bdrv_dirname(BlockDriverState *bs, Error **errp);
 
diff --git a/include/block/block-io.h b/include/block/block-io.h
index 5e3f346..62c84f0 100644
--- a/include/block/block-io.h
+++ b/include/block/block-io.h
@@ -103,6 +103,7 @@ int bdrv_apply_auto_read_only(BlockDriverState *bs, const char *errmsg,
 bool bdrv_is_read_only(BlockDriverState *bs);
 bool bdrv_is_writable(BlockDriverState *bs);
 bool bdrv_is_sg(BlockDriverState *bs);
+int bdrv_get_flags(BlockDriverState *bs);
 bool bdrv_is_inserted(BlockDriverState *bs);
 void bdrv_lock_medium(BlockDriverState *bs, bool locked);
 void bdrv_eject(BlockDriverState *bs, bool eject_flag);