diff mbox

[RFC,1/4] blockdev: add if_get_max_devs

Message ID 1408399520-12778-2-git-send-email-jsnow@redhat.com
State New
Headers show

Commit Message

John Snow Aug. 18, 2014, 10:05 p.m. UTC 
Signed-off-by: John Snow <jsnow@redhat.com>
---
 blockdev.c                | 9 +++++++++
 include/sysemu/blockdev.h | 1 +
 2 files changed, 10 insertions(+)
diff mbox

Patch

diff --git a/blockdev.c b/blockdev.c
index 48bd9a3..58da77f 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -110,6 +110,15 @@  void blockdev_auto_del(BlockDriverState *bs)
     }
 }
 
+int if_get_max_devs(BlockInterfaceType type)
+{
+    if (type >= IF_IDE && type < IF_COUNT) {
+        return if_max_devs[type];
+    }
+
+    return 0;
+}
+
 static int drive_index_to_bus_id(BlockInterfaceType type, int index)
 {
     int max_devs = if_max_devs[type];
diff --git a/include/sysemu/blockdev.h b/include/sysemu/blockdev.h
index 23a5d10..2420abd 100644
--- a/include/sysemu/blockdev.h
+++ b/include/sysemu/blockdev.h
@@ -48,6 +48,7 @@  struct DriveInfo {
 DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit);
 DriveInfo *drive_get_by_index(BlockInterfaceType type, int index);
 int drive_get_max_bus(BlockInterfaceType type);
+int if_get_max_devs(BlockInterfaceType type);
 DriveInfo *drive_get_next(BlockInterfaceType type);
 DriveInfo *drive_get_by_blockdev(BlockDriverState *bs);