diff mbox

[v4,1/4] block: Add blk_dev_has_tray()

Message ID 1454096953-31773-2-git-send-email-mreitz@redhat.com (mailing list archive)
State New, archived
Headers show

Commit Message

Max Reitz Jan. 29, 2016, 7:49 p.m. UTC 
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>
---
 block/block-backend.c     | 10 +++++++++-
 include/block/block_int.h |  1 +
 2 files changed, 10 insertions(+), 1 deletion(-)
diff mbox

Patch

diff --git a/block/block-backend.c b/block/block-backend.c
index efd6146..a4208f1 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -459,6 +459,14 @@  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.
  */
@@ -474,7 +482,7 @@  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;
diff --git a/include/block/block_int.h b/include/block/block_int.h
index 428fa33..ec31df1 100644
--- a/include/block/block_int.h
+++ b/include/block/block_int.h
@@ -695,6 +695,7 @@  void blk_set_bs(BlockBackend *blk, BlockDriverState *bs);
 
 void blk_dev_change_media_cb(BlockBackend *blk, bool load);
 bool blk_dev_has_removable_media(BlockBackend *blk);
+bool blk_dev_has_tray(BlockBackend *blk);
 void blk_dev_eject_request(BlockBackend *blk, bool force);
 bool blk_dev_is_tray_open(BlockBackend *blk);
 bool blk_dev_is_medium_locked(BlockBackend *blk);