[PATCH 3/4] Consolidate pread/pread64 implementations

[Mike Frysinger]

On 24 Feb 2016 19:12, Adhemerval Zanella wrote:
> On 24-02-2016 18:41, Mike Frysinger wrote:
> > On 23 Feb 2016 15:42, Adhemerval Zanella wrote:
> >> On 23-02-2016 14:57, Joseph Myers wrote:
> >>> Also, you're including sysdeps/unix/sysv/linux/generic/sysdep.h for 
> >>> architectures that don't use the generic ABI.  If that's safe, that 
> >>> suggests it should just be merged into sysdeps/unix/sysv/linux/sysdep.h 
> >>> (in a separate patch with a careful argument for why the merge is safe) 
> >>> rather than keeping the headers separate.
> >>
> >> I decided to add it on generic sysdep.h because it is where port will get
> >> the definition of __ALIGNMENT_ARG.  However I can split the second path
> >> in two, one to include generic sysdep.h and another to define SYSCALL_LL{64}.
> > 
> > i don't think splitting the path addresses the contention.  Joseph's
> > point (which i agree with) is that linux/generic/ is for the "generic
> > ABI" which the kernel is trying to push for new arches.  if you have
> > stuff which works across all linux ABI's, then instead of being in
> > linux/generic/xxx, it should be in linux/xxx.
> > 
> > if that means some things get hoisted out of linux/generic/xxx and
> > into linux/xxx, then that's OK.
> 
> I think then best approach would be move __ALIGNMENT_{ARG,COUNT} from generic
> to linux/xxx and add the new SYSCALL_LL on linux/xxx as well.  What you think?

sgtm.  seems like many of the users in linux/generic/wordsize-32/ could
also be merged back if you're feeling proactive :).
-mike
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