From: Matthew Wilcox <matthew@wil.cx>
To: David Woodhouse <dwmw2@infradead.org>
Cc: Russell King <rmk@arm.linux.org.uk>,
Andrew Morton <akpm@linux-foundation.org>,
torvalds@linux-foundation.org, paulus@samba.org,
linux-arch@vger.kernel.org, drepper@redhat.com
Subject: Re: Introduce fixed sys_sync_file_range2() syscall, implement on PowerPC and ARM
Date: Mon, 25 Jun 2007 05:47:42 -0600 [thread overview]
Message-ID: <20070625114742.GG22063@parisc-linux.org> (raw)
In-Reply-To: <1182771454.12109.71.camel@pmac.infradead.org>
On Mon, Jun 25, 2007 at 12:37:34PM +0100, David Woodhouse wrote:
> - Some architectures must align 64-bit integers into an aligned
> pair of registers. A slot may be wasted for padding.
> - S390 may not have a 64-bit integer in slots 5/6.
Uhm, doesn't sys_sync_file_range2 break that?
+asmlinkage long compat_sys_sync_file_range2(int fd, unsigned int flags,
+ unsigned offset_hi, unsigned offset_lo,
+ unsigned nbytes_hi, unsigned nbytes_lo)
How about:
asmlinkage long compat_sys_sync_file_range2(unsigned offset_hi,
unsigned offset_lo, unsigned nbytes_hi, unsigned nbytes_lo,
int fd, unsigned int flags)
Also, you might want to put something in the syscall file about signed
vs unsigned arguments and how they behave with 32-on-64 systems.
next prev parent reply other threads:[~2007-06-25 11:47 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-25 8:49 Introduce fixed sys_sync_file_range2() syscall, implement on PowerPC and ARM David Woodhouse
2007-06-25 9:11 ` Andrew Morton
2007-06-25 9:48 ` David Woodhouse
2007-06-25 10:24 ` Matthew Wilcox
2007-06-25 10:35 ` Matthew Wilcox
2007-06-25 11:09 ` Russell King
2007-06-25 11:37 ` David Woodhouse
2007-06-25 11:47 ` Matthew Wilcox [this message]
2007-06-25 12:01 ` David Woodhouse
2007-06-25 12:04 ` Segher Boessenkool
2007-06-25 12:34 ` David Woodhouse
2007-06-25 13:10 ` Segher Boessenkool
2007-06-25 13:33 ` David Woodhouse
2007-06-27 13:34 ` Ralf Baechle
2007-06-27 12:23 ` Geert Uytterhoeven
2007-06-25 11:33 ` David Howells
2007-06-25 14:35 ` Kyle McMartin
2007-06-27 13:22 ` Ralf Baechle
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