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

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Message-Id: <20070317163350.6b676c26.sfr@canb.auug.org.au>
Date:	Sat, 17 Mar 2007 16:33:50 +1100
From:	Stephen Rothwell <sfr@...b.auug.org.au>
To:	"Amit K. Arora" <aarora@...ux.vnet.ibm.com>
Cc:	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

On Fri, 16 Mar 2007 20:01:01 +0530 "Amit K. Arora" <aarora@...ux.vnet.ibm.com> wrote:
>

> +asmlinkage long sys_fallocate(int fd, int mode, loff_t offset, loff_t len);
>
> --- linux-2.6.20.1.orig/include/asm-powerpc/systbl.h
> +++ linux-2.6.20.1/include/asm-powerpc/systbl.h
> @@ -305,3 +305,4 @@ SYSCALL_SPU(faccessat)
>  COMPAT_SYS_SPU(get_robust_list)
>  COMPAT_SYS_SPU(set_robust_list)
>  COMPAT_SYS(move_pages)
> +SYSCALL(fallocate)

It is going to need to be a COMPAT_SYS call in powerpc because 32 bit
powerpc will pass the two loff_t's in pairs of registers while
64bit passes them in one register each.

--
Cheers,
Stephen Rothwell                    sfr@...b.auug.org.au
http://www.canb.auug.org.au/~sfr/

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