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

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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>
This commit is contained in:
Max Reitz
2017-03-28 22:51:27 +02:00
parent 55b9392b98
commit ed3d2ec98a
22 changed files with 73 additions and 90 deletions
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21
blockdev.c
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@@ -2930,26 +2930,7 @@ void qmp_block_resize(bool has_device, const char *device,
/* 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);