From: Jakub Jelinek <jakub@redhat.com>
To: linux-ia64@vger.kernel.org
Subject: Re: PATCH: Re: Inefficient ia64 system call implementation in glibc
Date: Wed, 24 Sep 2003 07:43:19 +0000 [thread overview]
Message-ID: <marc-linux-ia64-106439675127150@msgid-missing> (raw)
In-Reply-To: <marc-linux-ia64-106438485815490@msgid-missing>
On Wed, Sep 24, 2003 at 10:36:21AM +0200, Andreas Schwab wrote:
> >> x+0 would work in this case; I'd guess it'd work for most of the
> >> cases that syscalls need to handle.
> >>
> >
> > This patch works for me.
> >
> >
> > H.J.
> > ---
> > 2003-09-22 H.J. Lu <hongjiu.lu@intel.com>
> >
> > * sysdeps/unix/sysv/linux/ia64/sysdep.h (LOAD_ARGS_1): Use
> > __typeof ((outX) + 0) instead of long.
>
> Hopefully we don't have any occurences of LOAD_ARGS_n(...,0,..) where the
> kernel expects long.
I think that's very risky and could mean hard to find bugs.
I don't think the 0-1 cycle speedup is not worth the troubles.
Jakub
next prev parent reply other threads:[~2003-09-24 7:43 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-09-24 6:27 PATCH: Re: Inefficient ia64 system call implementation in glibc H. J. Lu
2003-09-24 7:43 ` Jakub Jelinek [this message]
2003-09-24 8:36 ` Andreas Schwab
2003-09-24 18:56 ` H. J. Lu
2003-09-24 20:36 ` Andreas Schwab
2003-09-24 21:12 ` Jim Wilson
2003-09-25 4:34 ` H. J. Lu
2003-09-25 4:36 ` H. J. Lu
2003-09-25 4:39 ` H. J. Lu
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