blk_is_available() returns true iff the BDS is inserted (which means
blk_bs() is not NULL and bdrv_is_inserted() returns true) and if the
tray of the guest device is closed.
blk_is_inserted() is changed to return true only if blk_bs() is not
NULL.
Signed-off-by: Max Reitz <mre...@redhat.com>
Reviewed-by: Eric Blake <ebl...@redhat.com>
---
block/block-backend.c | 7 ++++++-
include/sysemu/block-backend.h | 1 +
2 files changed, 7 insertions(+), 1 deletion(-)
diff --git a/block/block-backend.c b/block/block-backend.c
index 29baab2..d034c78 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -749,7 +749,12 @@ void blk_invalidate_cache(BlockBackend *blk, Error **errp)
bool blk_is_inserted(BlockBackend *blk)
{
- return bdrv_is_inserted(blk->bs);
+ return blk->bs && bdrv_is_inserted(blk->bs);
+}
+
+bool blk_is_available(BlockBackend *blk)
+{
+ return blk_is_inserted(blk) && !blk_dev_is_tray_open(blk);
}
void blk_lock_medium(BlockBackend *blk, bool locked)
diff --git a/include/sysemu/block-backend.h b/include/sysemu/block-backend.h
index 189e72b..525b323 100644
--- a/include/sysemu/block-backend.h
+++ b/include/sysemu/block-backend.h
@@ -130,6 +130,7 @@ int blk_enable_write_cache(BlockBackend *blk);
void blk_set_enable_write_cache(BlockBackend *blk, bool wce);
void blk_invalidate_cache(BlockBackend *blk, Error **errp);
bool blk_is_inserted(BlockBackend *blk);
+bool blk_is_available(BlockBackend *blk);
void blk_lock_medium(BlockBackend *blk, bool locked);
void blk_eject(BlockBackend *blk, bool eject_flag);
int blk_get_flags(BlockBackend *blk);
--
2.4.1
