From: "H. Peter Anvin" <hpa@zytor.com>
To: akpm@linux-foundation.org
Cc: mm-commits@vger.kernel.org, kraxel@redhat.com, arnd@arndb.de,
linux-api@vger.kernel.org, linux-arch@vger.kernel.org,
mingo@elte.hu, ralf@linux-mips.org, tglx@linutronix.de,
viro@zeniv.linux.org.uk
Subject: Re: + preadv-pwritev-add-preadv-and-pwritev-system-calls.patch added to -mm tree
Date: Mon, 02 Feb 2009 13:51:27 -0800 [thread overview]
Message-ID: <49876ADF.80201@zytor.com> (raw)
In-Reply-To: <200902022135.n12LZa1a010673@imap1.linux-foundation.org>
>
> This prototype has one problem though: On 32bit archs is the (64bit)
> offset argument unaligned, which the syscall ABI of several archs doesn't
> allow to do. At least s390 needs a wrapper in glibc to handle this. As
> we'll need a wrappers in glibc anyway I've decided to push problem to
> glibc entriely and use a syscall prototype which works without
> arch-specific wrappers inside the kernel: The offset argument is
> explicitly splitted into two 32bit values.
>
This is also an excellent example of why having syscall stubs
autogenerated would be a very good thing, to avoid these kinds of
abortions polluting the ABIs of *every* architecture...
-hpa
next prev parent reply other threads:[~2009-02-02 21:51 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-02-02 21:35 + preadv-pwritev-add-preadv-and-pwritev-system-calls.patch added to -mm tree akpm
[not found] ` <200902022135.n12LZa1a010673-AB4EexQrvXRQetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org>
2009-02-02 21:50 ` H. Peter Anvin
2009-02-02 21:50 ` H. Peter Anvin
[not found] ` <49876A91.4000705-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
2009-02-03 10:14 ` Gerd Hoffmann
2009-02-03 10:14 ` Gerd Hoffmann
[not found] ` <49881904.30705-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2009-02-03 17:06 ` H. Peter Anvin
2009-02-03 17:06 ` H. Peter Anvin
[not found] ` <498879B3.8030002-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
2009-02-03 17:15 ` Russell King
2009-02-03 17:15 ` Russell King
2009-02-03 17:29 ` H. Peter Anvin
[not found] ` <20090203171559.GA20898-f404yB8NqCZvn6HldHNs0ANdhmdF6hFW@public.gmane.org>
2009-02-03 17:29 ` H. Peter Anvin
2009-02-03 17:29 ` H. Peter Anvin
[not found] ` <49887EF4.1090300-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
2009-02-03 17:42 ` Russell King
2009-02-03 17:42 ` Russell King
2009-02-03 20:19 ` H. Peter Anvin
2009-02-03 20:19 ` H. Peter Anvin
2009-02-05 0:42 ` H. Peter Anvin
2009-02-05 0:42 ` H. Peter Anvin
2009-02-02 21:51 ` H. Peter Anvin [this message]
-- strict thread matches above, loose matches on Subject: below --
2009-02-02 21:35 akpm
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