Re: [RFC PATCH v2 14/25] assertions for blockdev.h global state API

[Paolo Bonzini]

On 05/10/21 16:32, Emanuele Giuseppe Esposito wrote:
> Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
> ---
>   block/block-backend.c |  2 ++
>   blockdev.c            | 12 ++++++++++++
>   2 files changed, 14 insertions(+)
>
> diff --git a/block/block-backend.c b/block/block-backend.c
> index 9f09245069..18791c4fdc 100644
> --- a/block/block-backend.c
> +++ b/block/block-backend.c
> @@ -805,6 +805,7 @@ DriveInfo *blk_legacy_dinfo(BlockBackend *blk)
>   DriveInfo *blk_set_legacy_dinfo(BlockBackend *blk, DriveInfo *dinfo)
>   {
>       assert(!blk->legacy_dinfo);
> +    g_assert(qemu_in_main_thread());
>       return blk->legacy_dinfo = dinfo;
>   }
>   
> @@ -815,6 +816,7 @@ DriveInfo *blk_set_legacy_dinfo(BlockBackend *blk, DriveInfo *dinfo)
>   BlockBackend *blk_by_legacy_dinfo(DriveInfo *dinfo)
>   {
>       BlockBackend *blk = NULL;
> +    g_assert(qemu_in_main_thread());
>   
>       while ((blk = blk_next(blk)) != NULL) {
>           if (blk->legacy_dinfo == dinfo) {
> diff --git a/blockdev.c b/blockdev.c
> index 5608b78f8f..917bcf8cbc 100644
> --- a/blockdev.c
> +++ b/blockdev.c
> @@ -114,6 +114,8 @@ void override_max_devs(BlockInterfaceType type, int 
> max_devs)
>       BlockBackend *blk;
>       DriveInfo *dinfo;
>   
> +    g_assert(qemu_in_main_thread());
> +
>       if (max_devs <= 0) {
>           return;
>       }
> @@ -230,6 +232,8 @@ DriveInfo *drive_get(BlockInterfaceType type, int bus, int 
> unit)
>       BlockBackend *blk;
>       DriveInfo *dinfo;
>   
> +    g_assert(qemu_in_main_thread());
> +
>       for (blk = blk_next(NULL); blk; blk = blk_next(blk)) {
>           dinfo = blk_legacy_dinfo(blk);
>           if (dinfo && dinfo->type == type
> @@ -252,6 +256,8 @@ void drive_check_orphaned(void)
>       Location loc;
>       bool orphans = false;
>   
> +    g_assert(qemu_in_main_thread());
> +
>       for (blk = blk_next(NULL); blk; blk = blk_next(blk)) {
>           dinfo = blk_legacy_dinfo(blk);
>           /*
> @@ -285,6 +291,7 @@ void drive_check_orphaned(void)
>   
>   DriveInfo *drive_get_by_index(BlockInterfaceType type, int index)
>   {
> +    g_assert(qemu_in_main_thread());
>       return drive_get(type,
>                        drive_index_to_bus_id(type, index),
>                        drive_index_to_unit_id(type, index));
> @@ -296,6 +303,8 @@ int drive_get_max_bus(BlockInterfaceType type)
>       BlockBackend *blk;
>       DriveInfo *dinfo;
>   
> +    g_assert(qemu_in_main_thread());
> +
>       max_bus = -1;
>       for (blk = blk_next(NULL); blk; blk = blk_next(blk)) {
>           dinfo = blk_legacy_dinfo(blk);
> @@ -312,6 +321,7 @@ int drive_get_max_bus(BlockInterfaceType type)
>   DriveInfo *drive_get_next(BlockInterfaceType type)
>   {
>       static int next_block_unit[IF_COUNT];
> +    g_assert(qemu_in_main_thread());
>   
>       return drive_get(type, 0, next_block_unit[type]++);
>   }
> @@ -792,6 +802,8 @@ DriveInfo *drive_new(QemuOpts *all_opts, BlockInterfaceType 
> block_default_type,
>       const char *filename;
>       int i;
>   
> +    g_assert(qemu_in_main_thread());
> +
>       /* Change legacy command line options into QMP ones */
>       static const struct {
>           const char *from;

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>