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Re: [Xen-devel] [PATCH] libxl: blktap2 portiblity fixes



On Monday 26 July 2010 16:53:02 Ian Jackson wrote:
> Christoph Egger writes ("Re: [Xen-devel] [PATCH] libxl: blktap2 portiblity 
fixes"):
> > Can you use the c/s numbers, please?
>
> Changeset numbers are not guaranteed to be meaningful outside a
> particular tree, particularly in the presence of merges.
>
> > It was not necessary to backout c/s 21834 as this wasn't the root cause.
>
> I think by 21834 you mean 24277e3237ca.

No, c/s 21834 has the hash e76befc7fe2d.

> Looking at this patch it's difficult to review and test and there are
> some things I would like to see improved.  Can I ask you to try to
> split the patch up into separate pieces ?
>
> At the very least, please separate out the following:
>   * Adding new interfaces, ie introucing new functions and putting
>     code into those functions and replacing it at the original site
>     with a call;
>   * Const-correctness
>   * Code motion between files, and creation of libxl_linux.c;
>   * Provide libxl_netbsd.c and associated Makefile changes to
>     disable blktap2 on netbsd
>   * #include portability fixes for openpty, pty.h etc.

That's doable but I don't see if a standalone const-correctness
patch makes sense just to make gcc happy with an other patch.

> > diff -r 2b768d52bc7f tools/libxl/libxl_bootloader.c
> > --- a/tools/libxl/libxl_bootloader.c        Sun Jul 25 22:20:47 2010 +0100
> > +++ b/tools/libxl/libxl_bootloader.c        Mon Jul 26 12:41:02 2010 +0200
> > @@ -15,9 +15,16 @@
> >  #include "libxl_osdeps.h"
> >
> >  #include <string.h>
> > -#include <pty.h>
> >  #include <unistd.h>
> >  #include <fcntl.h>
> > +#include <termios.h>
> > +#if defined(__NetBSD__) || defined(__OpenBSD__)
> > +#include <util.h>
> > +#elif defined(__linux__)
> > +#include <pty.h>
> > +#elif defined(__sun__)
> > +#include <stropts.h>
> > +#endif
>
> This should be done by moving the relevant #includes to osdep.h, where
> all this kind of thing should be done.

Should this header be re-used by tools/console/daemon/io.c ?
If yes, where is the best place to put osdep.h ?

>
> > -int device_physdisk_major_minor(char *physpath, int *major, int *minor)
> > +int device_physdisk_major_minor(const char *physpath, int *major, int
> > *minor)
>
> This change should be separated out.

hg record is your friend.

Christoph


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