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[Qemu-devel] [RFC PATCH v3 5/6] qcow2: implement bdrv_preallocate
From: |
Hu Tao |
Subject: |
[Qemu-devel] [RFC PATCH v3 5/6] qcow2: implement bdrv_preallocate |
Date: |
Thu, 19 Dec 2013 10:27:40 +0800 |
Signed-off-by: Hu Tao <address@hidden>
---
block/qcow2.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/block/qcow2.c b/block/qcow2.c
index 32cb39f..487a595 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -2188,6 +2188,12 @@ static int qcow2_amend_options(BlockDriverState *bs,
return 0;
}
+static int qcow2_preallocate(BlockDriverState *bs, int64_t offset,
+ int64_t length)
+{
+ return bdrv_preallocate(bs->file, offset, length);
+}
+
static QEMUOptionParameter qcow2_create_options[] = {
{
.name = BLOCK_OPT_SIZE,
@@ -2242,6 +2248,7 @@ static BlockDriver bdrv_qcow2 = {
.bdrv_reopen_prepare = qcow2_reopen_prepare,
.bdrv_create = qcow2_create,
.bdrv_has_zero_init = bdrv_has_zero_init_1,
+ .bdrv_preallocate = qcow2_preallocate,
.bdrv_co_get_block_status = qcow2_co_get_block_status,
.bdrv_set_key = qcow2_set_key,
.bdrv_make_empty = qcow2_make_empty,
--
1.7.11.7
- [Qemu-devel] [RFC PATCH v3 0/6] qemu-img: add preallocation=full, Hu Tao, 2013/12/18
- [Qemu-devel] [RFC PATCH v3 1/6] block: introduce prealloc_mode, Hu Tao, 2013/12/18
- [Qemu-devel] [RFC PATCH v3 4/6] raw-posix: Add full image preallocation option, Hu Tao, 2013/12/18
- [Qemu-devel] [RFC PATCH v3 2/6] block: add BlockDriver.bdrv_preallocate., Hu Tao, 2013/12/18
- [Qemu-devel] [RFC PATCH v3 5/6] qcow2: implement bdrv_preallocate,
Hu Tao <=
- [Qemu-devel] [RFC PATCH v3 3/6] block/raw-posix: implement bdrv_preallocate, Hu Tao, 2013/12/18
- [Qemu-devel] [RFC PATCH v3 6/6] qcow2: Add full image preallocation option, Hu Tao, 2013/12/18
- Re: [Qemu-devel] [RFC PATCH v3 0/6] qemu-img: add preallocation=full, Stefan Hajnoczi, 2013/12/20