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[Qemu-block] [PULL 10/19] qcow2: Use BB for resizing in qcow2_amend_opti
From: |
Kevin Wolf |
Subject: |
[Qemu-block] [PULL 10/19] qcow2: Use BB for resizing in qcow2_amend_options() |
Date: |
Fri, 24 Feb 2017 19:17:01 +0100 |
In order to able to convert bdrv_truncate() to take a BdrvChild and
later to correctly check the resize permission here, we need to use a
BlockBackend for resizing the image.
Signed-off-by: Kevin Wolf <address@hidden>
Reviewed-by: Max Reitz <address@hidden>
---
block/qcow2.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/block/qcow2.c b/block/qcow2.c
index 3e274bd..254545a 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -3250,7 +3250,11 @@ static int qcow2_amend_options(BlockDriverState *bs,
QemuOpts *opts,
}
if (new_size) {
- ret = bdrv_truncate(bs, new_size);
+ BlockBackend *blk = blk_new();
+ blk_insert_bs(blk, bs);
+ ret = blk_truncate(blk, new_size);
+ blk_unref(blk);
+
if (ret < 0) {
return ret;
}
--
1.8.3.1
- [Qemu-block] [PULL 00/19] Block layer patches, Kevin Wolf, 2017/02/24
- [Qemu-block] [PULL 01/19] qemu-iotests: Test 137 only supports 'file' protocol, Kevin Wolf, 2017/02/24
- [Qemu-block] [PULL 02/19] qemu-iotests: add ability to exclude certain protocols from tests, Kevin Wolf, 2017/02/24
- [Qemu-block] [PULL 03/19] qemu-iotests: redirect nbd server stdout to /dev/null, Kevin Wolf, 2017/02/24
- [Qemu-block] [PULL 04/19] qemu-img: Do not truncate before preallocation, Kevin Wolf, 2017/02/24
- [Qemu-block] [PULL 05/19] qemu-img: Add tests for raw image preallocation, Kevin Wolf, 2017/02/24
- [Qemu-block] [PULL 06/19] qemu-img: Truncate before full preallocation, Kevin Wolf, 2017/02/24
- [Qemu-block] [PULL 07/19] qemu-img: Improve documentation for PREALLOC_MODE_FALLOC, Kevin Wolf, 2017/02/24
- [Qemu-block] [PULL 08/19] iotests: Fix another race in 030, Kevin Wolf, 2017/02/24
- [Qemu-block] [PULL 10/19] qcow2: Use BB for resizing in qcow2_amend_options(),
Kevin Wolf <=
- [Qemu-block] [PULL 09/19] blockdev: Use BlockBackend to resize in qmp_block_resize(), Kevin Wolf, 2017/02/24
- [Qemu-block] [PULL 11/19] mirror: Resize active commit base in mirror_run(), Kevin Wolf, 2017/02/24
- [Qemu-block] [PULL 13/19] block: Attach bs->file only during .bdrv_open(), Kevin Wolf, 2017/02/24
- [Qemu-block] [PULL 12/19] block: Pass BdrvChild to bdrv_truncate(), Kevin Wolf, 2017/02/24
- [Qemu-block] [PULL 16/19] block: Factor out bdrv_open_driver(), Kevin Wolf, 2017/02/24
- [Qemu-block] [PULL 17/19] block: Add bdrv_new_open_driver(), Kevin Wolf, 2017/02/24
- [Qemu-block] [PULL 18/19] vvfat: Use opened node as backing file, Kevin Wolf, 2017/02/24
- [Qemu-block] [PULL 14/19] block: Factor out bdrv_open_child_bs(), Kevin Wolf, 2017/02/24
- [Qemu-block] [PULL 15/19] block: Use BlockBackend for image probing, Kevin Wolf, 2017/02/24
- [Qemu-block] [PULL 19/19] tests: Use opened block node for block job tests, Kevin Wolf, 2017/02/24