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block: Add errp to b{lk,drv}_truncate()

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For one thing, this allows us to drop the error message generation from
qemu-img.c and blockdev.c and instead have it unified in
bdrv_truncate().

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20170328205129.15138-3-mreitz@redhat.com
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Max Reitz 2017-03-28 22:51:27 +02:00
parent 55b9392b98
commit ed3d2ec98a
22 changed files with 73 additions and 90 deletions
Download patch file Download diff file Expand all files Collapse all files

5
block/commit.c
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@ -151,7 +151,7 @@ static void coroutine_fn commit_run(void *opaque)
}
if (base_len < s->common.len) {
ret = blk_truncate(s->base, s->common.len);
ret = blk_truncate(s->base, s->common.len, NULL);
if (ret) {
goto out;
}
@ -511,8 +511,9 @@ int bdrv_commit(BlockDriverState *bs)
* grow the backing file image if possible. If not possible,
* we must return an error */
if (length > backing_length) {
ret = blk_truncate(backing, length);
ret = blk_truncate(backing, length, &local_err);
if (ret < 0) {
error_report_err(local_err);
goto ro_cleanup;
}
}