
Commit 4be9762a changed bdrv_is_inserted() to fail when the tray is open. Unfortunately, there are two different kinds of users, with conflicting needs. 1. Device models using bdrv_eject(), currently ide-cd and scsi-cd. They expect bdrv_is_inserted() to reflect the tray status. Commit 4be9762a makes them happy. 2. Code that wants to know whether a BlockDriverState has media, such as find_image_format(), bdrv_flush_all(). Commit 4be9762a makes them unhappy. In particular, it breaks flush on VM stop for media ejected by the guest. Revert the change to bdrv_is_inserted(). Check the tray status in the device models instead. Note on IDE: Since only ATAPI devices have a tray, and they don't accept ATA commands since the recent commit "ide: Reject ATA commands specific to drive kinds", checking in atapi.c suffices. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Read the documentation in qemu-doc.html. Fabrice Bellard.
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