linux-ext4 - Re: [PATCH 1/5] fallocate() implementation in i86, x86

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Message-ID: <17978.47502.786970.196554@cargo.ozlabs.ibm.com>
Date:	Fri, 4 May 2007 14:41:50 +1000
From:	Paul Mackerras <paulus@...ba.org>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	"Amit K. Arora" <aarora@...ux.vnet.ibm.com>,
	torvalds@...ux-foundation.org, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-ext4@...r.kernel.org,
	xfs@....sgi.com, suparna@...ibm.com, cmm@...ibm.com
Subject: Re: [PATCH 1/5] fallocate() implementation in i86, x86_64 and
 powerpc

Andrew Morton writes:

> On Thu, 26 Apr 2007 23:33:32 +0530 "Amit K. Arora" <aarora@...ux.vnet.ibm.com> wrote:
> 
> > This patch implements the fallocate() system call and adds support for
> > i386, x86_64 and powerpc.
> > 
> > ...
> >
> > +asmlinkage long sys_fallocate(int fd, int mode, loff_t offset, loff_t len)
> 
> Please add a comment over this function which specifies its behaviour. 
> Really it should be enough material from which a full manpage can be
> written.

This looks like it will have the same problem on s390 as
sys_sync_file_range.  Maybe the prototype should be:

asmlinkage long sys_fallocate(loff_t offset, loff_t len, int fd, int mode)

Paul.
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