Re: [Qemu-devel] [PATCH] qcow2: Cache refcount blocks during snapshot creation

[Kevin Wolf <kwolf@redhat.com>]

Nathan Froyd schrieb:
> On Fri, Jun 26, 2009 at 08:19:38PM +0200, Kevin Wolf wrote:
>> +    if (s->refcount_block_cache_offset == 0) {
>> +        return 0;
>> +    }
>> +
>> +    if (bdrv_pwrite(s->hd, s->refcount_block_cache_offset,
>> +            s->refcount_block_cache, size) != size)
>> +    {
> 
> Nit: bad formatting for opening brace here.

Oh, I like nitpicking. The coding style says: "The opening brace is on
the line that contains the control flow statement that introduces the
new block". No way to conform here without breaking the 80 characters
limit, so I did what I think is most reasonable. ;-)

I guess you mean something like the following:

    if (bdrv_pwrite(s->hd, s->refcount_block_cache_offset,
            s->refcount_block_cache, size) != size) {
            do_it();
    }

I don't like this very much because you can't see from the indentation
where the condition ends and the "then" branch begins (which is
different from a single-line condition). Maybe something to clarify in
the coding style and I'll happily follow it then.

Kevin