[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH for-2.12 v2 09/12] vhdx: Require power-of-two block
From: |
Kevin Wolf |
Subject: |
[Qemu-devel] [PATCH for-2.12 v2 09/12] vhdx: Require power-of-two block size on create |
Date: |
Wed, 21 Mar 2018 18:37:11 +0100 |
Images with a non-power-of-two block size are invalid and cannot be
opened. Reject such block sizes when creating an image.
Signed-off-by: Kevin Wolf <address@hidden>
Reviewed-by: Eric Blake <address@hidden>
Reviewed-by: Jeff Cody <address@hidden>
---
block/vhdx.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/block/vhdx.c b/block/vhdx.c
index f1b97f4b49..ca211a3196 100644
--- a/block/vhdx.c
+++ b/block/vhdx.c
@@ -1877,6 +1877,10 @@ static int coroutine_fn
vhdx_co_create(BlockdevCreateOptions *opts,
error_setg_errno(errp, EINVAL, "Block size must be a multiple of 1
MB");
return -EINVAL;
}
+ if (!is_power_of_2(block_size)) {
+ error_setg(errp, "Block size must be a power of two");
+ return -EINVAL;
+ }
if (block_size > VHDX_BLOCK_SIZE_MAX) {
error_setg_errno(errp, EINVAL, "Block size must not exceed %d",
VHDX_BLOCK_SIZE_MAX);
--
2.13.6
- [Qemu-devel] [PATCH for-2.12 v2 02/12] vdi: Fix build with CONFIG_VDI_DEBUG, (continued)
- [Qemu-devel] [PATCH for-2.12 v2 02/12] vdi: Fix build with CONFIG_VDI_DEBUG, Kevin Wolf, 2018/03/21
- [Qemu-devel] [PATCH for-2.12 v2 01/12] vdi: Change 'static' create option to 'preallocation' in QMP, Kevin Wolf, 2018/03/21
- [Qemu-devel] [PATCH for-2.12 v2 04/12] qemu-iotests: Enable 025 for luks, Kevin Wolf, 2018/03/21
- [Qemu-devel] [PATCH for-2.12 v2 05/12] luks: Turn another invalid assertion into check, Kevin Wolf, 2018/03/21
- [Qemu-devel] [PATCH for-2.12 v2 03/12] qemu-iotests: Test vdi image creation with QMP, Kevin Wolf, 2018/03/21
- [Qemu-devel] [PATCH for-2.12 v2 06/12] qemu-iotests: Test invalid resize on luks, Kevin Wolf, 2018/03/21
- [Qemu-devel] [PATCH for-2.12 v2 07/12] parallels: Check maximum cluster size on create, Kevin Wolf, 2018/03/21
- [Qemu-devel] [PATCH for-2.12 v2 09/12] vhdx: Require power-of-two block size on create,
Kevin Wolf <=
- [Qemu-devel] [PATCH for-2.12 v2 10/12] vhdx: Don't use error_setg_errno() with constant errno, Kevin Wolf, 2018/03/21
- [Qemu-devel] [PATCH for-2.12 v2 08/12] qemu-iotests: Test parallels image creation with QMP, Kevin Wolf, 2018/03/21
- [Qemu-devel] [PATCH for-2.12 v2 11/12] vhdx: Check for 4 GB maximum log size on creation, Kevin Wolf, 2018/03/21
- [Qemu-devel] [PATCH for-2.12 v2 12/12] qemu-iotests: Test vhdx image creation with QMP, Kevin Wolf, 2018/03/21
- Re: [Qemu-devel] [PATCH for-2.12 v2 00/12] block: Follow-up for .bdrv_co_create (part 1), Kevin Wolf, 2018/03/26