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authorMax Reitz <mreitz@redhat.com>2016-01-29 20:49:10 +0100
committerMichael Roth <mdroth@linux.vnet.ibm.com>2016-03-17 16:23:28 -0500
commite1a8a0912489d667ab7b35f8dd6ae9ec1de7ca20 (patch)
tree148bdbbb4aeb309bf542e6e220c9ccec79894507 /block/block-backend.c
parent7a2c1c8e66d17125c5b3fe214bd8c103b87bb895 (diff)
block: Add blk_dev_has_tray()
Pull out the check whether a block device has a tray from blk_dev_is_tray_open() into its own function so both attributes (whether there is a tray vs. whether that tray is open) can be queried independently. Cc: qemu-stable <qemu-stable@nongnu.org> Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Alberto Garcia <berto@igalia.com> Message-id: 1454096953-31773-2-git-send-email-mreitz@redhat.com (cherry picked from commit 8f3a73bc57ea83e5b3930d14fc596ea51859987a) Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Diffstat (limited to 'block/block-backend.c')
-rw-r--r--block/block-backend.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/block/block-backend.c b/block/block-backend.c
index 36ccc9e616..419591f264 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -458,6 +458,14 @@ bool blk_dev_has_removable_media(BlockBackend *blk)
}
/*
+ * Does @blk's attached device model have a tray?
+ */
+bool blk_dev_has_tray(BlockBackend *blk)
+{
+ return blk->dev_ops && blk->dev_ops->is_tray_open;
+}
+
+/*
* Notify @blk's attached device model of a media eject request.
* If @force is true, the medium is about to be yanked out forcefully.
*/
@@ -473,7 +481,7 @@ void blk_dev_eject_request(BlockBackend *blk, bool force)
*/
bool blk_dev_is_tray_open(BlockBackend *blk)
{
- if (blk->dev_ops && blk->dev_ops->is_tray_open) {
+ if (blk_dev_has_tray(blk)) {
return blk->dev_ops->is_tray_open(blk->dev_opaque);
}
return false;