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block: Add bdrv_co_pwrite_sync()

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Also convert bdrv_pwrite_sync() to being implemented using
generated_co_wrapper.

Signed-off-by: Alberto Faria <afaria@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20220609152744.3891847-9-afaria@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
This commit is contained in:
Alberto Faria 2022-06-09 16:27:42 +01:00 committed by Hanna Reitz
parent 1d39c7098b
commit e97190a405
2 changed files with 11 additions and 6 deletions
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9
block/io.c
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@ -1094,18 +1094,19 @@ int bdrv_make_zero(BdrvChild *child, BdrvRequestFlags flags)
*
* Returns 0 on success, -errno in error cases.
*/
int bdrv_pwrite_sync(BdrvChild *child, int64_t offset, int64_t bytes,
const void *buf, BdrvRequestFlags flags)
int coroutine_fn bdrv_co_pwrite_sync(BdrvChild *child, int64_t offset,
int64_t bytes, const void *buf,
BdrvRequestFlags flags)
{
int ret;
IO_CODE();
ret = bdrv_pwrite(child, offset, bytes, buf, flags);
ret = bdrv_co_pwrite(child, offset, bytes, buf, flags);
if (ret < 0) {
return ret;
}
ret = bdrv_flush(child->bs);
ret = bdrv_co_flush(child->bs);
if (ret < 0) {
return ret;
}

8
include/block/block-io.h
View File

@ -49,8 +49,12 @@ int generated_co_wrapper bdrv_pread(BdrvChild *child, int64_t offset,
int generated_co_wrapper bdrv_pwrite(BdrvChild *child, int64_t offset,
int64_t bytes, const void *buf,
BdrvRequestFlags flags);
int bdrv_pwrite_sync(BdrvChild *child, int64_t offset, int64_t bytes,
const void *buf, BdrvRequestFlags flags);
int generated_co_wrapper bdrv_pwrite_sync(BdrvChild *child, int64_t offset,
int64_t bytes, const void *buf,
BdrvRequestFlags flags);
int coroutine_fn bdrv_co_pwrite_sync(BdrvChild *child, int64_t offset,
int64_t bytes, const void *buf,
BdrvRequestFlags flags);
/*
* Efficiently zero a region of the disk image. Note that this is a regular
* I/O request like read or write and should have a reasonable size. This