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block: Convert bdrv_pwrite_zeroes() to BdrvChild

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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Kevin Wolf 2016-06-16 15:13:15 +02:00
parent d9ca2ea2e2
commit 720ff280e7
8 changed files with 18 additions and 11 deletions
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9
block/io.c
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@ -649,7 +649,7 @@ int bdrv_write(BdrvChild *child, int64_t sector_num,
true, 0);
}
int bdrv_pwrite_zeroes(BlockDriverState *bs, int64_t offset,
int bdrv_pwrite_zeroes(BdrvChild *child, int64_t offset,
int count, BdrvRequestFlags flags)
{
QEMUIOVector qiov;
@ -659,7 +659,7 @@ int bdrv_pwrite_zeroes(BlockDriverState *bs, int64_t offset,
};
qemu_iovec_init_external(&qiov, &iov, 1);
return bdrv_prwv_co(bs, offset, &qiov, true,
return bdrv_prwv_co(child->bs, offset, &qiov, true,
BDRV_REQ_ZERO_WRITE | flags);
}
@ -672,9 +672,10 @@ int bdrv_pwrite_zeroes(BlockDriverState *bs, int64_t offset,
*
* Returns < 0 on error, 0 on success. For error codes see bdrv_write().
*/
int bdrv_make_zero(BlockDriverState *bs, BdrvRequestFlags flags)
int bdrv_make_zero(BdrvChild *child, BdrvRequestFlags flags)
{
int64_t target_sectors, ret, nb_sectors, sector_num = 0;
BlockDriverState *bs = child->bs;
BlockDriverState *file;
int n;
@ -698,7 +699,7 @@ int bdrv_make_zero(BlockDriverState *bs, BdrvRequestFlags flags)
sector_num += n;
continue;
}
ret = bdrv_pwrite_zeroes(bs, sector_num << BDRV_SECTOR_BITS,
ret = bdrv_pwrite_zeroes(child, sector_num << BDRV_SECTOR_BITS,
n << BDRV_SECTOR_BITS, flags);
if (ret < 0) {
error_report("error writing zeroes at sector %" PRId64 ": %s",