Re: [Qemu-devel] [PULL 0/5] Block layer patches

[Kevin Wolf]

Am 04.07.2018 um 20:30 hat Peter Maydell geschrieben:
> On 3 July 2018 at 15:59, Kevin Wolf <address@hidden> wrote:
> > The following changes since commit a395717cbd26e7593d3c3fe81faca121ec6d13e8:
> >
> >   Merge remote-tracking branch 'remotes/cody/tags/block-pull-request' into 
> > staging (2018-07-03 11:49:51 +0100)
> >
> > are available in the git repository at:
> >
> >   git://repo.or.cz/qemu/kevin.git tags/for-upstream
> >
> > for you to fetch changes up to 59738025a1674bb7e07713c3c93ff4fb9c5079f5:
> >
> >   block: Add blklogwrites (2018-07-03 16:09:48 +0200)
> >
> > ----------------------------------------------------------------
> > Block layer patches:
> >
> > - qcow2: Use worker threads for compression to improve performance of
> >   'qemu-img convert -W' and compressed backup jobs
> > - blklogwrites: New filter driver to log write requests to an image in
> >   the dm-log-writes format
> >
> > ----------------------------------------------------------------
> 
> Hi; this gives some a warning on OpenBSD and NetBSD:
> 
> /home/qemu/block/qcow2.c: In function 'qcow2_compress':
> /home/qemu/block/qcow2.c:3684:18: warning: assignment discards 'const'
> qualifier from pointer target type
>      strm.next_in = src;

Hm, looks like they use a really old version of the zlib header, which
doesn't care about const correctness. I'll add a cast to work around it.

Kevin