All of lore.kernel.org
 help / color / mirror / Atom feed
From: David Miller <davem@davemloft.net>
To: paulus@samba.org
Cc: matthew@wil.cx, kraxel@redhat.com, linux-kernel@vger.kernel.org,
	linux-arch@vger.kernel.org
Subject: Re: [PATCH v2] Add preadv and pwritev system calls.
Date: Sun, 14 Dec 2008 22:20:43 -0800 (PST)	[thread overview]
Message-ID: <20081214.222043.249008274.davem@davemloft.net> (raw)
In-Reply-To: <18757.55706.609537.196994@drongo.ozlabs.ibm.com>

From: Paul Mackerras <paulus@samba.org>
Date: Mon, 15 Dec 2008 15:14:18 +1100

> Matthew Wilcox writes:
> 
> > On Fri, Dec 12, 2008 at 03:00:40PM +0100, Gerd Hoffmann wrote:
> > > The patch sports the actual system call implementation and the windup in
> > > the x86 system call tables.  Other archs are TBD.
> > 
> > > +asmlinkage ssize_t sys_preadv(unsigned long fd, const struct iovec __user *vec,
> > > +                              unsigned long vlen, loff_t pos)
> > > +asmlinkage ssize_t sys_pwritev(unsigned long fd, const struct iovec __user *vec,
> > > +                               unsigned long vlen, loff_t pos)
> > 
> > Are these prototypes required?  MIPS and PARISC will need wrappers to
> > fix them if they are.  These two architectures have an ABI which
> > requires 64-bit arguments to be passed in aligned pairs of registers,
> 
> As does 32-bit PowerPC, so I also would prefer the alternate argument
> order for the syscall (pos as the 3rd argument).

FWIW 32-bit sparc does not have the aligned register requirement
for 64-bit arguments.

  reply	other threads:[~2008-12-15  6:20 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-12-12 14:00 Gerd Hoffmann
2008-12-12 15:29 ` Matthew Wilcox
2008-12-12 15:48   ` Gerd Hoffmann
2008-12-12 15:51     ` Matthew Wilcox
2008-12-12 16:02       ` Gerd Hoffmann
2008-12-12 17:03         ` Matthew Wilcox
2008-12-12 18:21           ` Alan Cox
2008-12-12 19:02             ` Russell King
2008-12-12 18:29         ` Scott Lurndal
2008-12-12 19:07           ` Russell King
2008-12-12 19:56             ` Gerd Hoffmann
2008-12-12 19:56               ` Gerd Hoffmann
2008-12-12 20:12               ` Russell King
2008-12-12 20:39                 ` Gerd Hoffmann
2008-12-12 20:39                   ` Gerd Hoffmann
2008-12-14 18:19               ` Pavel Machek
2008-12-15 16:37         ` Jennifer Pioch
2008-12-15 20:43           ` Gerd Hoffmann
2008-12-16  9:57             ` Arnd Bergmann
2008-12-17  1:45               ` [osol-code] " Dan Mick
2008-12-17  1:45                 ` Dan Mick
2008-12-12 19:47   ` Arnd Bergmann
2008-12-12 20:02     ` Gerd Hoffmann
2008-12-14 11:49   ` Heiko Carstens
2008-12-15  4:14   ` Paul Mackerras
2008-12-15  6:20     ` David Miller [this message]
2008-12-12 15:40 ` Ralf Baechle
2008-12-12 16:59 ` Russell King
2008-12-13  1:18 ` Michael Kerrisk

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20081214.222043.249008274.davem@davemloft.net \
    --to=davem@davemloft.net \
    --cc=kraxel@redhat.com \
    --cc=linux-arch@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=matthew@wil.cx \
    --cc=paulus@samba.org \
    --subject='Re: [PATCH v2] Add preadv and pwritev system calls.' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.