commit ed3d2ec98a33fbdeabc471b11ff807075f07e996
author Max Reitz <mreitz@redhat.com> Tue Mar 28 22:51:27 2017 +0200
committer Max Reitz <mreitz@redhat.com> Fri Apr 28 16:02:02 2017 +0200
tree d76333098ab7b42da2dbae9075bc32ba9d0e2263
parent 55b9392b98e500399f2da1edc1d110bbfd40fb05

block: Add errp to b{lk,drv}_truncate()

For one thing, this allows us to drop the error message generation from
qemu-img.c and blockdev.c and instead have it unified in
bdrv_truncate().

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20170328205129.15138-3-mreitz@redhat.com
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>

blockdev.c

diff --git a/blockdev.c b/blockdev.c
index 6428206..4d8cded 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -2930,26 +2930,7 @@
     /* complete all in-flight operations before resizing the device */
     bdrv_drain_all();
 
-    ret = blk_truncate(blk, size);
-    switch (ret) {
-    case 0:
-        break;
-    case -ENOMEDIUM:
-        error_setg(errp, QERR_DEVICE_HAS_NO_MEDIUM, device);
-        break;
-    case -ENOTSUP:
-        error_setg(errp, QERR_UNSUPPORTED);
-        break;
-    case -EACCES:
-        error_setg(errp, "Device '%s' is read only", device);
-        break;
-    case -EBUSY:
-        error_setg(errp, QERR_DEVICE_IN_USE, device);
-        break;
-    default:
-        error_setg_errno(errp, -ret, "Could not resize");
-        break;
-    }
+    ret = blk_truncate(blk, size, errp);
 
 out:
     blk_unref(blk);