linux-ext4 - Re: [RFC][PATCH] sys_fallocate() system call

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Message-ID: <17915.48105.70494.958220@cargo.ozlabs.ibm.com>
Date:	Sat, 17 Mar 2007 20:59:05 +1100
From:	Paul Mackerras <paulus@...ba.org>
To:	Heiko Carstens <heiko.carstens@...ibm.com>
Cc:	"Amit K. Arora" <aarora@...ux.vnet.ibm.com>,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-ext4@...r.kernel.org, xfs@....sgi.com,
	Andrew Morton <akpm@...ux-foundation.org>, suparna@...ibm.com,
	cmm@...ibm.com, alex@...sterfs.com, suzuki@...ibm.com
Subject: Re: [RFC][PATCH] sys_fallocate() system call

Heiko Carstens writes:

> So you either rearrange the parameters or convert the loff_t's to pointers.
> 
> e.g.
> 
> asmlinkage long sys_fallocate(int fd, loff_t offset, loff_t len, int mode)
> 
> would work even on s390 ;)

... but wouldn't work on 32-bit powerpc. :(  We would end up with a
pad argument between fd and offset, giving 7 arguments in all
(counting the loff_t's as 2), but we only support 6.

Paul.
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