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block/qcow2: Use bdrv_pwrite_sync() in qcow2_mark_dirty()

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Use bdrv_pwrite_sync() instead of calling bdrv_pwrite() and bdrv_flush()
separately.

Signed-off-by: Alberto Faria <afaria@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20220609152744.3891847-11-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 16:27:44 +01:00 committed by Hanna Reitz
parent a8f0e83cef
commit 86da43220c
1 changed files with 3 additions and 6 deletions
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9
block/qcow2.c
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@ -516,12 +516,9 @@ int qcow2_mark_dirty(BlockDriverState *bs)
}
val = cpu_to_be64(s->incompatible_features | QCOW2_INCOMPAT_DIRTY);
ret = bdrv_pwrite(bs->file, offsetof(QCowHeader, incompatible_features),
sizeof(val), &val, 0);
if (ret < 0) {
return ret;
}
ret = bdrv_flush(bs->file->bs);
ret = bdrv_pwrite_sync(bs->file,
offsetof(QCowHeader, incompatible_features),
sizeof(val), &val, 0);
if (ret < 0) {
return ret;
}