scsi: commonize purging requests

The code for canceling requests upon reset is already the same.  Clean
it up and move it to scsi-bus.c.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>

diff --git a/hw/scsi-bus.c b/hw/scsi-bus.c
index c7748d0eade2fa7bd81ed1745d35235198c9ddad..c1e94fac9eb2d5cce9b200533519ef5686a12ed6 100644 (file)
--- a/hw/scsi-bus.c
+++ b/hw/scsi-bus.c
@@ -549,6 +549,18 @@ void scsi_req_complete(SCSIRequest *req)
     scsi_req_unref(req);
 }
 
+void scsi_device_purge_requests(SCSIDevice *sdev)
+{
+    SCSIRequest *req;
+
+    while (!QTAILQ_EMPTY(&sdev->requests)) {
+        req = QTAILQ_FIRST(&sdev->requests);
+        sdev->info->cancel_io(req);
+        scsi_req_dequeue(req);
+        scsi_req_unref(req);
+    }
+}
+
 static char *scsibus_get_fw_dev_path(DeviceState *dev)
 {
     SCSIDevice *d = (SCSIDevice*)dev;

diff --git a/hw/scsi-disk.c b/hw/scsi-disk.c
index f7c09c9b793012b31eb662d31f63c95033b05d7a..38fbb05ab849d05e2bba627ea3f5b43077842b58 100644 (file)
--- a/hw/scsi-disk.c
+++ b/hw/scsi-disk.c
@@ -1147,26 +1147,12 @@ static int32_t scsi_send_command(SCSIRequest *req, uint8_t *buf)
     return len;
 }
 
-static void scsi_disk_purge_requests(SCSIDiskState *s)
-{
-    SCSIDiskReq *r;
-
-    while (!QTAILQ_EMPTY(&s->qdev.requests)) {
-        r = DO_UPCAST(SCSIDiskReq, req, QTAILQ_FIRST(&s->qdev.requests));
-        if (r->req.aiocb) {
-            bdrv_aio_cancel(r->req.aiocb);
-        }
-        scsi_req_dequeue(&r->req);
-        scsi_req_unref(&r->req);
-    }
-}
-
 static void scsi_disk_reset(DeviceState *dev)
 {
     SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev.qdev, dev);
     uint64_t nb_sectors;
 
-    scsi_disk_purge_requests(s);
+    scsi_device_purge_requests(&s->qdev);
 
     bdrv_get_geometry(s->bs, &nb_sectors);
     nb_sectors /= s->cluster_size;
@@ -1180,7 +1166,7 @@ static void scsi_destroy(SCSIDevice *dev)
 {
     SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev);
 
-    scsi_disk_purge_requests(s);
+    scsi_device_purge_requests(&s->qdev);
     blockdev_mark_auto_del(s->qdev.conf.bs);
 }
 

diff --git a/hw/scsi-generic.c b/hw/scsi-generic.c
index 3740432d9e3ed4045e819f1cbb347c50cec95db8..72c4cc702df90aa8f48503755922cf10eb04f512 100644 (file)
--- a/hw/scsi-generic.c
+++ b/hw/scsi-generic.c
@@ -424,32 +424,18 @@ static int get_stream_blocksize(BlockDriverState *bdrv)
     return (buf[9] << 16) | (buf[10] << 8) | buf[11];
 }
 
-static void scsi_generic_purge_requests(SCSIGenericState *s)
-{
-    SCSIGenericReq *r;
-
-    while (!QTAILQ_EMPTY(&s->qdev.requests)) {
-        r = DO_UPCAST(SCSIGenericReq, req, QTAILQ_FIRST(&s->qdev.requests));
-        if (r->req.aiocb) {
-            bdrv_aio_cancel(r->req.aiocb);
-        }
-        scsi_req_dequeue(&r->req);
-        scsi_req_unref(&r->req);
-    }
-}
-
 static void scsi_generic_reset(DeviceState *dev)
 {
     SCSIGenericState *s = DO_UPCAST(SCSIGenericState, qdev.qdev, dev);
 
-    scsi_generic_purge_requests(s);
+    scsi_device_purge_requests(&s->qdev);
 }
 
 static void scsi_destroy(SCSIDevice *d)
 {
     SCSIGenericState *s = DO_UPCAST(SCSIGenericState, qdev, d);
 
-    scsi_generic_purge_requests(s);
+    scsi_device_purge_requests(&s->qdev);
     blockdev_mark_auto_del(s->qdev.conf.bs);
 }
 

diff --git a/hw/scsi.h b/hw/scsi.h
index 19bd1ae77457e9097fd3ecc4340f20e4383f2f94..f1d8888acaec0ddded72d14fc6cc0c2866750d91 100644 (file)
--- a/hw/scsi.h
+++ b/hw/scsi.h
@@ -114,5 +114,6 @@ int scsi_req_parse(SCSIRequest *req, uint8_t *buf);
 void scsi_req_print(SCSIRequest *req);
 void scsi_req_data(SCSIRequest *req, int len);
 void scsi_req_complete(SCSIRequest *req);
+void scsi_device_purge_requests(SCSIDevice *sdev);
 
 #endif